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Join our innovative team at mangroup as a Senior C# Engineer, where you will play a pivotal role in designing and developing high-quality software solutions. With a focus on cutting-edge technologies and best practices, you will collaborate with cross-functional teams to deliver robust applications that meet our clients' needs.
In this role, you will be responsible for writing clean, scalable code while actively participating in code reviews and contributing to architectural decisions. Your expertise in C#, . NET, and software development methodologies will be essential in driving our projects forward.
Join our innovative team at mangroup as a Senior C# Engineer, where you will play a pivotal role in designing and developing high-quality software solutions. With a focus on cutting-edge technologies and best practices, you will collaborate with cross-functional teams to deliver robust applications that meet our clients' needs.In this role, you will be respo…
About Our TeamThe Global Operations team at SumUp is dedicated to creating an unparalleled customer experience in the fintech sector, with artificial intelligence at its core. As a vital member of our AI team, you will bridge machine learning engineering and tangible product impact, developing models and systems that enhance intelligent customer support for over 4 million merchants globally. This is not a research position; it's a dynamic engineering role where your contributions will directly influence the daily experiences of SumUp merchants.Your ResponsibilitiesDesign, build, and deploy robust AI solutions into production, prioritizing reliability and scalability.Develop and maintain ML infrastructure and data pipelines to optimize data processing, model training, and serving.Enhance and fine-tune machine learning models for peak accuracy and efficiency in large-scale applications.Work collaboratively with data scientists, product managers, and backend engineers to convert business requirements into effective AI strategies.Implement strong engineering practices including version control, CI/CD, and comprehensive testing frameworks.Gather, preprocess, and organize extensive text datasets to facilitate superior model training and assessment.
At Brandwatch, we are committed to empowering every individual to make a significant impact. Your voice is valued here, and your unique insights contribute to our collective success. As part of our global team, you'll flourish in an environment that fosters curiosity, collaboration, and innovation, while making meaningful contributions to the brands we support.Join us in redefining the future of communication and building authentic connections that matter. Whether you are tackling complex challenges or spearheading bold innovations, your growth is synonymous with our success. Together, we will create the conversations of tomorrow.Empower your impact at Brandwatch. Be seen, be understood, be you.Brandwatch is actively seeking a dedicated member for the Measure team. You will join a cross-functional and autonomous product team responsible for delivering solutions for performance monitoring and analytics across major social media platforms including Facebook, Instagram, Twitter, LinkedIn, TikTok, and YouTube.As a Backend Engineer at Brandwatch, you will work with the latest Long-Term Support (LTS) versions of Java and Spring, interfacing with some of the most influential social networks globally. You will consume and store data from their APIs at scale, creating REST APIs that expose vital social media KPIs to our clients. Additionally, you will design and implement a scalable microservice architecture.
Who We AreAt Redis, we are pioneers in building the technology that powers fast applications across the globe. Whether you checked the weather, used your credit card, or tracked your flight status online today, chances are our technology played a vital role. Join us in revolutionizing the world with faster, simpler experiences.Your Role and ResponsibilitiesCollaborate with the Redis Data Integration (RDI) team to develop data streaming pipelines that efficiently mirror data from both relational and non-relational databases to Redis Enterprise, enabling applications to access data at in-memory speeds.Deploy your product at global enterprises, whether on-premise or in the cloud, and engage with cutting-edge technologies across diverse environments.Act as a product owner by proactively identifying opportunities to enhance the product and improve the developer experience.Utilize modern AI-assisted tools to accelerate development and enhance engineering workflows.Focus initially on developing the RDI User Interface for both Cloud and On-premise installations.
About the Role Playtech is looking for a Senior DevOps Engineer to join the team in Sofia. This position focuses on building and maintaining scalable infrastructure, supporting high availability, and streamlining continuous integration and deployment pipelines. What You Will Do Design and implement infrastructure that can grow with business needs Maintain systems for high availability and reliability Optimize CI/CD processes to improve software delivery Work closely with teams across development, QA, and operations to improve the software development lifecycle Contribute to the efficiency and stability of Playtech’s operations Location This role is based in Sofia.
Join the Global Bank tribe where we are revolutionizing the banking infrastructure for merchants. Our mission is to empower small merchants worldwide with a digital business account that simplifies their banking needs, making us the go-to banking partner for them.As a Senior Backend Engineer, you will play a pivotal role in transitioning from fragmented regional systems to a unified global infrastructure, enabling millions of merchants to access seamless banking services tailored to their needs.Your expertise will be crucial in designing and developing a fully distributed, event-driven system that is resilient and compliant across multiple regions.In this role, you will primarily work with Kotlin while having the opportunity to engage with Elixir and Golang. We embrace Extreme Programming methodologies, focusing on small iterations, daily deliveries, and prioritizing technical design quality and deep problem-solving.Our technology stack includes Kotlin, Golang, Elixir, Java, AWS, Kafka, PostgreSQL, and Kubernetes, leveraged by observability tools such as Prometheus, Grafana, and Honeycomb. Additionally, we utilize AI-assisted development tools including Cursor and GitHub Copilot.
Welcome to Kaizen GamingAt Kaizen Gaming, the driving force behind Betano, we rank among the world's leading GameTech companies, operating seamlessly across 19 diverse markets. Our mission is to harness the latest technological advancements to deliver unparalleled experiences to the millions of customers who rely on us for their entertainment.With a vibrant community of over 2,700 team members from more than 40 nationalities spread across three continents, we embrace diversity and innovation. Our #oneteam ethos has earned us recognition as one of the Best Workplaces in Europe and the prestigious Great Place to Work certification across our offices. Are you ready to Press Play on Your Potential?About the RoleAs a Principal Engineer within our Technology department, you will play a pivotal role in shaping our frontend strategies. Your expertise will guide teams in crafting elegant, high-performance solutions to real-world challenges. You will mentor them in coding, testing, debugging, and performance analysis, while conducting thorough code reviews to ensure quality and efficiency.In this role, you will be at the forefront of developing cutting-edge applications using modern technologies. Your focus will include executing our technical roadmap, emphasizing code modularity, reusability, and testability. You will also be responsible for performance tuning and monitoring, while providing vital technical guidance to our development teams, ensuring adherence to best practices and design patterns. Collaborating closely with UI/UX designers, you will elevate the user experience for our customers.Our Technology StackWe leverage a robust tech stack, including Vue.js 3, TypeScript, VueX, Pinia, Tailwind, Webpack, Vite, Storybook, Jest, Vitest, Openshift, and private npm packages to develop our internal shared libraries, alongside a micro frontends architecture.As a Principal Frontend Engineer, your responsibilities will include:Coding alongside engineers, demonstrating technical leadership by addressing root causes and leading by example.Understanding key frontend performance metrics, with experience in debugging frameworks like Lighthouse and ChromeUX.Exerting technical influence across multiple teams, mentoring individuals on advanced technical issues, and assisting technology managers in fostering team member growth.Collaborating with Product and Delivery teams to build scalable solutions that meet non-functional requirements regarding performance, security, and reliability.
Join our dynamic team at RWS as an AI Data Specialist focused on enhancing AI-generated content in Turkish. Job Type: FreelanceLocation: Fully RemoteWork Schedule: Part-time - 10+ hours per week, with flexible hours to suit your lifestyle.Start Date: ImmediateDuration: To Be ConfirmedRate: Variable based on location Contribute to the Future of AIAre you a student, recent graduate, stay-at-home parent, or a professional looking for a flexible remote opportunity? If you're passionate about influencing the safety and development of modern AI models, we want to hear from you! Your Role:As an AI Data Specialist, you will engage in various data-driven tasks, including:- Collecting, evaluating, and annotating data.- Conducting pairwise comparisons.- Performing counting tasks.- Tagging and labeling objects across diverse content types (audio, video, images, and collected data). Your Qualifications:- Native-level proficiency in Turkish- Proficiency in English: Fluent or advanced (B2–C2 levels)- AI & Data Skills (Preferred): Experience in machine learning tasks, data collection, preprocessing, evaluation, quality assurance, annotation, and labeling. What We Offer:- Flexible work schedule- Opportunity for additional income- Prompt payments- Ideal for students, part-time workers, or stay-at-home parents
Join Bosch Group as a Senior Software Architect specializing in automotive technology. In this pivotal role, you will leverage your expertise to design and implement cutting-edge software solutions that enhance vehicle performance and safety. You will collaborate with cross-functional teams to drive innovation and ensure the highest quality standards in software development.
As part of the global technology organization TietoEVRY, MentorMate specializes in crafting robust technical solutions that facilitate large-scale digital transformation. Our approach integrates strategic insights, innovative design, and exceptional engineering to create advanced applications. With a strong foundation in enterprise web and mobile development, quality engineering, technical architecture, human-centered design, cloud computing, DevOps, data management, and analytics, we empower our team to engage in significant global projects for well-known brands. We appreciate every team member and celebrate our collective achievements through flexible work arrangements, competitive compensation and benefits, and excellent career advancement opportunities within our extensive international team.Role OverviewWe are in search of a skilled React Native Engineer to join our dynamic team and spearhead the development of high-quality mobile applications. You will be instrumental in designing and implementing scalable, efficient, and user-friendly mobile solutions utilizing React Native, with a strong focus on modern JavaScript (ES6+), state management, and clean architecture. This position is perfect for an individual who thrives in a collaborative atmosphere, enjoys tackling intricate challenges, and is dedicated to delivering impactful solutions.
Our mission is to empower individuals to create wealth.At Trading 212, we are transforming the landscape of trading and investing by developing outstanding products that our users adore.Our dynamic team is composed of highly motivated individuals who pursue excellence and cherish autonomy.With over 4.5 million clients and more than €30 billion in assets under management, our growth and trust in the market speak volumes about our success.We are in search of passionate and experienced Principal Software Engineers to drive innovation and scalability in our systems.
Join Our Mission to Empower Wealth BuildingAt trading212, we are revolutionizing the trading and investing landscape by crafting innovative products that resonate with our users.We champion a culture of excellence and agility, driving our success in a rapidly evolving market.Currently, we proudly serve over 4.5 million clients, managing more than €30 billion in assets—a true testament to the trust we have established in just a few years.Your RoleDesign and implement solutions with a comprehensive understanding of business challenges, our service architecture, and the relevant technologies and infrastructure.Be involved in every phase of the software development lifecycle (SDLC)—from gathering requirements and designing implementation to coding, testing, deploying, and monitoring. You will take full ownership of your code and ensure its continuous improvement.Develop robust solutions focused on performance, scalability, and resilience—your code will operate in a high-stakes environment where downtime, latency, and data loss are unacceptable.Collaborate within small, autonomous teams that operate on short release cycles. We value agile methodologies and a balanced approach to processes that avoid chaos without compromising speed.Engage in knowledge sharing and continuous learning with colleagues. As our company evolves, so must we, and constructive feedback is one of our strongest tools for growth. QualificationsProven experience in developing services within a microservice architecture, having contributed to a highly scalable and performant system comprising over 200 microservices.Strong understanding of common communication protocols. You should be adept at utilizing HTTP/WebSockets and AMQP, with the ability to choose the appropriate protocol based on the context.Familiarity with at least one widely-used web framework, regardless of programming language. Our language-agnostic system empowers engineers to select the most suitable language for specific tasks. We strive for a harmonious balance between cutting-edge technologies and proven solutions.A comprehensive understanding of system performance, scalability, and security best practices.
Join our team as an AI Data Specialist to enhance AI-generated content in the Bulgarian language. Position Type: FreelanceWork Arrangement: RemoteSchedule: Part-time - 10+ hours per week with flexible hours.Start Date: As soon as possibleContract Duration: To be confirmedCompensation: Varies by location Help Shape the Future of AIAre you a student, recent graduate, stay-at-home parent, gig worker, or professional looking for flexible remote work? Do you want to contribute to the development and safety of modern AI models? Your ResponsibilitiesIn this role, you will engage in various data-related tasks, including:- Collecting, evaluating, and annotating data.- Conducting pairwise comparisons.- Performing counting tasks.- Tagging and labeling objects across various content formats (audio, video, images, or collected data). Qualifications:- Proficiency in Bulgarian at a native level- Proficient in English: Fluent or advanced level (B2–C2)- Data and AI Skills (Preferred): Experience in areas such as machine learning tasks, data collection and preprocessing, data evaluation and quality assurance, and data annotation and labeling. What We Provide- Flexible working hours- Potential for additional income- Prompt payment- Ideal for students, part-time workers, or stay-at-home parents
About the Role Ocado Group’s Mobile Fulfilment Systems team in Sofia, Bulgaria builds automation technology for online order fulfilment in retail and warehouse settings. The group combines distributed backend systems, mobile apps, and autonomous mobile robots to support rapid, scalable, and cost-effective order processing. This position sits within the In-Store Fulfilment (ISF) division. The team focuses on designing and developing cloud-based systems, progressive web apps, and web technologies that automate online order fulfilment at scale. About In-Store Fulfilment (ISF) ISF is a cloud-based platform that helps retailers efficiently fulfil online orders, improve the customer experience, and reduce operational costs. The system is live in over 1,000 stores across 11 countries and 4 continents. Each week, it manages more than 300,000 customer orders, covering every stage from routing and cubing to picking, buffering, loading, and dispatching. What You Will Do Architect, develop, and maintain large-scale distributed systems with high availability. Lead technical projects from initial planning through design and delivery. Apply best practices in testing, code quality, monitoring, and alerting to ensure reliable solutions. Shape the long-term architectural and product direction for the team. Integrate AI tools such as Claude Code, Gemini, and others into backend systems. AI and Engineering Focus AI is already part of the software development process at Ocado. The team is growing its AI capabilities and welcomes backend engineers with hands-on experience or a strong interest in AI. This role offers the chance to advance AI initiatives while contributing to core engineering projects.
Full-time|On-site|Sofia, Sofia City Province, Bulgaria
Join tinqin as a Manual Quality Assurance Engineer and play a crucial role in ensuring the quality and performance of our software products. You will collaborate with our development teams to identify and resolve defects, ensuring that our solutions meet the highest standards of quality and user satisfaction.
Main Responsibilities1. HR Process & Data EnablementEvaluate HR processes to pinpoint opportunities for AI and automation, coordinating with regional and local teams to gather requirements.Enhance data quality and integrity while documenting the data architecture within core HR systems.Establish robust data foundations necessary for maximizing AI utility.Define and uphold HR data governance rules and taxonomies.2. AI & Automation ImplementationAssess HR-related automation tools and agents released by vendors, overseeing testing and adoption as needed.Design and prototype use cases for HR AI applications.Collaborate closely with SBS HR to provide support for Tier-0/1 AI solutions.Facilitate integration of HR workflows across multiple systems.Conduct evaluations of build-vs-buy strategies for AI solutions.3. Collaboration & GovernanceServe as a liaison between HR, AI/Architecture, and IT departments.Ensure adherence to enterprise-level AI governance standards.Contribute to tracking the adoption of AI initiatives.Share reusable components and industry best practices with stakeholders.Qualifications & Experience5-10 years of experience in HR, business analysis, or digital transformation.In-depth understanding of HR processes and data management.Familiarity with low-code/no-code development platforms.Knowledge of workflow automation and conversational AI technologies.Mindset & Work EthicInquisitive, practical, and focused on delivering results.Ability to thrive in ambiguous situations.Strong collaborative abilities.A hybrid role bridging business and technology.InteractionsCollaboration with HR Centers of Excellence and HR Operations.Engagement with AI/Architecture and Central AI Teams.Coordination with IT and Shared Business Services.Interaction with vendors and technology platforms.
At SumUp, we champion the everyday heroes—those with the courage and determination to pursue their passions and realize their dreams.We place small business owners at the center of our mission, crafting powerful and user-friendly financial solutions designed to empower them in managing their businesses. With a founder's mentality and a collaborative, 'team-first' spirit, our diverse teams across Europe, South America, and the United States unite to ensure that small business owners can thrive in their endeavors.About the TeamThe Payments Reporting team is integral to SumUp’s financial infrastructure, developing systems that millions of merchants depend on daily to reconcile, report, and make sense of their finances. We are currently on an exciting journey to build a reporting platform that accommodates both external integrators and internal teams at scale, delivering functionalities from file-based exports to real-time API reporting. This role has emerged due to our ambitious growth outpacing the capacity of our current team of three backend engineers, and we need someone who can take significant ownership of complex backend tasks, allowing the team to accelerate critical architectural improvements.What You Will DoDevelop and maintain backend reporting features, including Payout Reports, Payment Reports, Fee Invoices, and Transaction Reports.Design and manage Reporting APIs (like Transaction History and Payout History) that cater to both external integrators and internal stakeholders.Lead the migration of core payments functionality from legacy systems, modernizing the infrastructure that supports our reporting platform.Ensure the operational health of reporting services through effective monitoring, incident response, and performance optimization.Actively engage in planning and refinement sessions, providing technical assessments and effort estimations.Mentor junior engineers through code reviews, collaborative sessions, and knowledge sharing.
SumUp’s Payments Tribe develops tools that make transactions easier for small businesses. The team in Sofia, Bulgaria, is searching for a Junior Backend Engineer with experience in Golang to help build and maintain these payment solutions. What you will do Collaborate with engineers to develop and maintain backend services using Golang Contribute to new features that support payment processing for users worldwide Assist in improving the reliability and usability of payment systems Role impact This position supports SumUp’s mission to simplify payments for small businesses and enhance the experience for users globally.
Join Tieto Tech Consulting, a prominent player in the global technology landscape, where we specialize in crafting robust technical solutions that facilitate large-scale digital transformation. At MentorMate, our focus is on combining strategic insights, innovative design, and exceptional engineering to deliver outstanding results. Our expertise spans enterprise web and mobile development, quality engineering, technical architecture, human-centered design, cloud solutions, DevOps, data analytics, and more. Here, you will have the opportunity to contribute to impactful projects for renowned global brands, while enjoying flexible working models, competitive compensation, and ample opportunities for professional growth within a diverse team of experts worldwide.About the RoleWe are seeking a talented React Native Engineer to enhance our dynamic team and take charge of developing high-quality mobile applications. This role involves designing and implementing scalable, performant, and user-friendly mobile solutions using React Native, with a strong focus on modern JavaScript (ES6+), effective state management, and clean architecture. Ideal candidates are those who excel in collaborative settings, enjoy tackling intricate challenges, and are passionate about delivering meaningful solutions.
Role overview Tietoevry seeks a Senior React Native Engineer with solid Node.js skills to join the team in Sofia. The focus is on building new features and enhancing mobile applications, always aiming for a smooth and effective user experience. Collaboration with colleagues from design, product, and engineering is a key part of the work. Main responsibilities Develop and maintain mobile apps using React Native Support backend features with Node.js Work closely with designers, product managers, and fellow engineers to deliver quality solutions Suggest and implement improvements for user experience and app performance Location This role is based in Sofia.
Join our innovative team at mangroup as a Senior C# Engineer, where you will play a pivotal role in designing and developing high-quality software solutions. With a focus on cutting-edge technologies and best practices, you will collaborate with cross-functional teams to deliver robust applications that meet our clients' needs.In this role, you will be respo…
About Our TeamThe Global Operations team at SumUp is dedicated to creating an unparalleled customer experience in the fintech sector, with artificial intelligence at its core. As a vital member of our AI team, you will bridge machine learning engineering and tangible product impact, developing models and systems that enhance intelligent customer support for over 4 million merchants globally. This is not a research position; it's a dynamic engineering role where your contributions will directly influence the daily experiences of SumUp merchants.Your ResponsibilitiesDesign, build, and deploy robust AI solutions into production, prioritizing reliability and scalability.Develop and maintain ML infrastructure and data pipelines to optimize data processing, model training, and serving.Enhance and fine-tune machine learning models for peak accuracy and efficiency in large-scale applications.Work collaboratively with data scientists, product managers, and backend engineers to convert business requirements into effective AI strategies.Implement strong engineering practices including version control, CI/CD, and comprehensive testing frameworks.Gather, preprocess, and organize extensive text datasets to facilitate superior model training and assessment.
At Brandwatch, we are committed to empowering every individual to make a significant impact. Your voice is valued here, and your unique insights contribute to our collective success. As part of our global team, you'll flourish in an environment that fosters curiosity, collaboration, and innovation, while making meaningful contributions to the brands we support.Join us in redefining the future of communication and building authentic connections that matter. Whether you are tackling complex challenges or spearheading bold innovations, your growth is synonymous with our success. Together, we will create the conversations of tomorrow.Empower your impact at Brandwatch. Be seen, be understood, be you.Brandwatch is actively seeking a dedicated member for the Measure team. You will join a cross-functional and autonomous product team responsible for delivering solutions for performance monitoring and analytics across major social media platforms including Facebook, Instagram, Twitter, LinkedIn, TikTok, and YouTube.As a Backend Engineer at Brandwatch, you will work with the latest Long-Term Support (LTS) versions of Java and Spring, interfacing with some of the most influential social networks globally. You will consume and store data from their APIs at scale, creating REST APIs that expose vital social media KPIs to our clients. Additionally, you will design and implement a scalable microservice architecture.
Who We AreAt Redis, we are pioneers in building the technology that powers fast applications across the globe. Whether you checked the weather, used your credit card, or tracked your flight status online today, chances are our technology played a vital role. Join us in revolutionizing the world with faster, simpler experiences.Your Role and ResponsibilitiesCollaborate with the Redis Data Integration (RDI) team to develop data streaming pipelines that efficiently mirror data from both relational and non-relational databases to Redis Enterprise, enabling applications to access data at in-memory speeds.Deploy your product at global enterprises, whether on-premise or in the cloud, and engage with cutting-edge technologies across diverse environments.Act as a product owner by proactively identifying opportunities to enhance the product and improve the developer experience.Utilize modern AI-assisted tools to accelerate development and enhance engineering workflows.Focus initially on developing the RDI User Interface for both Cloud and On-premise installations.
About the Role Playtech is looking for a Senior DevOps Engineer to join the team in Sofia. This position focuses on building and maintaining scalable infrastructure, supporting high availability, and streamlining continuous integration and deployment pipelines. What You Will Do Design and implement infrastructure that can grow with business needs Maintain systems for high availability and reliability Optimize CI/CD processes to improve software delivery Work closely with teams across development, QA, and operations to improve the software development lifecycle Contribute to the efficiency and stability of Playtech’s operations Location This role is based in Sofia.
Join the Global Bank tribe where we are revolutionizing the banking infrastructure for merchants. Our mission is to empower small merchants worldwide with a digital business account that simplifies their banking needs, making us the go-to banking partner for them.As a Senior Backend Engineer, you will play a pivotal role in transitioning from fragmented regional systems to a unified global infrastructure, enabling millions of merchants to access seamless banking services tailored to their needs.Your expertise will be crucial in designing and developing a fully distributed, event-driven system that is resilient and compliant across multiple regions.In this role, you will primarily work with Kotlin while having the opportunity to engage with Elixir and Golang. We embrace Extreme Programming methodologies, focusing on small iterations, daily deliveries, and prioritizing technical design quality and deep problem-solving.Our technology stack includes Kotlin, Golang, Elixir, Java, AWS, Kafka, PostgreSQL, and Kubernetes, leveraged by observability tools such as Prometheus, Grafana, and Honeycomb. Additionally, we utilize AI-assisted development tools including Cursor and GitHub Copilot.
Welcome to Kaizen GamingAt Kaizen Gaming, the driving force behind Betano, we rank among the world's leading GameTech companies, operating seamlessly across 19 diverse markets. Our mission is to harness the latest technological advancements to deliver unparalleled experiences to the millions of customers who rely on us for their entertainment.With a vibrant community of over 2,700 team members from more than 40 nationalities spread across three continents, we embrace diversity and innovation. Our #oneteam ethos has earned us recognition as one of the Best Workplaces in Europe and the prestigious Great Place to Work certification across our offices. Are you ready to Press Play on Your Potential?About the RoleAs a Principal Engineer within our Technology department, you will play a pivotal role in shaping our frontend strategies. Your expertise will guide teams in crafting elegant, high-performance solutions to real-world challenges. You will mentor them in coding, testing, debugging, and performance analysis, while conducting thorough code reviews to ensure quality and efficiency.In this role, you will be at the forefront of developing cutting-edge applications using modern technologies. Your focus will include executing our technical roadmap, emphasizing code modularity, reusability, and testability. You will also be responsible for performance tuning and monitoring, while providing vital technical guidance to our development teams, ensuring adherence to best practices and design patterns. Collaborating closely with UI/UX designers, you will elevate the user experience for our customers.Our Technology StackWe leverage a robust tech stack, including Vue.js 3, TypeScript, VueX, Pinia, Tailwind, Webpack, Vite, Storybook, Jest, Vitest, Openshift, and private npm packages to develop our internal shared libraries, alongside a micro frontends architecture.As a Principal Frontend Engineer, your responsibilities will include:Coding alongside engineers, demonstrating technical leadership by addressing root causes and leading by example.Understanding key frontend performance metrics, with experience in debugging frameworks like Lighthouse and ChromeUX.Exerting technical influence across multiple teams, mentoring individuals on advanced technical issues, and assisting technology managers in fostering team member growth.Collaborating with Product and Delivery teams to build scalable solutions that meet non-functional requirements regarding performance, security, and reliability.
Join our dynamic team at RWS as an AI Data Specialist focused on enhancing AI-generated content in Turkish. Job Type: FreelanceLocation: Fully RemoteWork Schedule: Part-time - 10+ hours per week, with flexible hours to suit your lifestyle.Start Date: ImmediateDuration: To Be ConfirmedRate: Variable based on location Contribute to the Future of AIAre you a student, recent graduate, stay-at-home parent, or a professional looking for a flexible remote opportunity? If you're passionate about influencing the safety and development of modern AI models, we want to hear from you! Your Role:As an AI Data Specialist, you will engage in various data-driven tasks, including:- Collecting, evaluating, and annotating data.- Conducting pairwise comparisons.- Performing counting tasks.- Tagging and labeling objects across diverse content types (audio, video, images, and collected data). Your Qualifications:- Native-level proficiency in Turkish- Proficiency in English: Fluent or advanced (B2–C2 levels)- AI & Data Skills (Preferred): Experience in machine learning tasks, data collection, preprocessing, evaluation, quality assurance, annotation, and labeling. What We Offer:- Flexible work schedule- Opportunity for additional income- Prompt payments- Ideal for students, part-time workers, or stay-at-home parents
Join Bosch Group as a Senior Software Architect specializing in automotive technology. In this pivotal role, you will leverage your expertise to design and implement cutting-edge software solutions that enhance vehicle performance and safety. You will collaborate with cross-functional teams to drive innovation and ensure the highest quality standards in software development.
As part of the global technology organization TietoEVRY, MentorMate specializes in crafting robust technical solutions that facilitate large-scale digital transformation. Our approach integrates strategic insights, innovative design, and exceptional engineering to create advanced applications. With a strong foundation in enterprise web and mobile development, quality engineering, technical architecture, human-centered design, cloud computing, DevOps, data management, and analytics, we empower our team to engage in significant global projects for well-known brands. We appreciate every team member and celebrate our collective achievements through flexible work arrangements, competitive compensation and benefits, and excellent career advancement opportunities within our extensive international team.Role OverviewWe are in search of a skilled React Native Engineer to join our dynamic team and spearhead the development of high-quality mobile applications. You will be instrumental in designing and implementing scalable, efficient, and user-friendly mobile solutions utilizing React Native, with a strong focus on modern JavaScript (ES6+), state management, and clean architecture. This position is perfect for an individual who thrives in a collaborative atmosphere, enjoys tackling intricate challenges, and is dedicated to delivering impactful solutions.
Our mission is to empower individuals to create wealth.At Trading 212, we are transforming the landscape of trading and investing by developing outstanding products that our users adore.Our dynamic team is composed of highly motivated individuals who pursue excellence and cherish autonomy.With over 4.5 million clients and more than €30 billion in assets under management, our growth and trust in the market speak volumes about our success.We are in search of passionate and experienced Principal Software Engineers to drive innovation and scalability in our systems.
Join Our Mission to Empower Wealth BuildingAt trading212, we are revolutionizing the trading and investing landscape by crafting innovative products that resonate with our users.We champion a culture of excellence and agility, driving our success in a rapidly evolving market.Currently, we proudly serve over 4.5 million clients, managing more than €30 billion in assets—a true testament to the trust we have established in just a few years.Your RoleDesign and implement solutions with a comprehensive understanding of business challenges, our service architecture, and the relevant technologies and infrastructure.Be involved in every phase of the software development lifecycle (SDLC)—from gathering requirements and designing implementation to coding, testing, deploying, and monitoring. You will take full ownership of your code and ensure its continuous improvement.Develop robust solutions focused on performance, scalability, and resilience—your code will operate in a high-stakes environment where downtime, latency, and data loss are unacceptable.Collaborate within small, autonomous teams that operate on short release cycles. We value agile methodologies and a balanced approach to processes that avoid chaos without compromising speed.Engage in knowledge sharing and continuous learning with colleagues. As our company evolves, so must we, and constructive feedback is one of our strongest tools for growth. QualificationsProven experience in developing services within a microservice architecture, having contributed to a highly scalable and performant system comprising over 200 microservices.Strong understanding of common communication protocols. You should be adept at utilizing HTTP/WebSockets and AMQP, with the ability to choose the appropriate protocol based on the context.Familiarity with at least one widely-used web framework, regardless of programming language. Our language-agnostic system empowers engineers to select the most suitable language for specific tasks. We strive for a harmonious balance between cutting-edge technologies and proven solutions.A comprehensive understanding of system performance, scalability, and security best practices.
Join our team as an AI Data Specialist to enhance AI-generated content in the Bulgarian language. Position Type: FreelanceWork Arrangement: RemoteSchedule: Part-time - 10+ hours per week with flexible hours.Start Date: As soon as possibleContract Duration: To be confirmedCompensation: Varies by location Help Shape the Future of AIAre you a student, recent graduate, stay-at-home parent, gig worker, or professional looking for flexible remote work? Do you want to contribute to the development and safety of modern AI models? Your ResponsibilitiesIn this role, you will engage in various data-related tasks, including:- Collecting, evaluating, and annotating data.- Conducting pairwise comparisons.- Performing counting tasks.- Tagging and labeling objects across various content formats (audio, video, images, or collected data). Qualifications:- Proficiency in Bulgarian at a native level- Proficient in English: Fluent or advanced level (B2–C2)- Data and AI Skills (Preferred): Experience in areas such as machine learning tasks, data collection and preprocessing, data evaluation and quality assurance, and data annotation and labeling. What We Provide- Flexible working hours- Potential for additional income- Prompt payment- Ideal for students, part-time workers, or stay-at-home parents
About the Role Ocado Group’s Mobile Fulfilment Systems team in Sofia, Bulgaria builds automation technology for online order fulfilment in retail and warehouse settings. The group combines distributed backend systems, mobile apps, and autonomous mobile robots to support rapid, scalable, and cost-effective order processing. This position sits within the In-Store Fulfilment (ISF) division. The team focuses on designing and developing cloud-based systems, progressive web apps, and web technologies that automate online order fulfilment at scale. About In-Store Fulfilment (ISF) ISF is a cloud-based platform that helps retailers efficiently fulfil online orders, improve the customer experience, and reduce operational costs. The system is live in over 1,000 stores across 11 countries and 4 continents. Each week, it manages more than 300,000 customer orders, covering every stage from routing and cubing to picking, buffering, loading, and dispatching. What You Will Do Architect, develop, and maintain large-scale distributed systems with high availability. Lead technical projects from initial planning through design and delivery. Apply best practices in testing, code quality, monitoring, and alerting to ensure reliable solutions. Shape the long-term architectural and product direction for the team. Integrate AI tools such as Claude Code, Gemini, and others into backend systems. AI and Engineering Focus AI is already part of the software development process at Ocado. The team is growing its AI capabilities and welcomes backend engineers with hands-on experience or a strong interest in AI. This role offers the chance to advance AI initiatives while contributing to core engineering projects.
Full-time|On-site|Sofia, Sofia City Province, Bulgaria
Join tinqin as a Manual Quality Assurance Engineer and play a crucial role in ensuring the quality and performance of our software products. You will collaborate with our development teams to identify and resolve defects, ensuring that our solutions meet the highest standards of quality and user satisfaction.
Main Responsibilities1. HR Process & Data EnablementEvaluate HR processes to pinpoint opportunities for AI and automation, coordinating with regional and local teams to gather requirements.Enhance data quality and integrity while documenting the data architecture within core HR systems.Establish robust data foundations necessary for maximizing AI utility.Define and uphold HR data governance rules and taxonomies.2. AI & Automation ImplementationAssess HR-related automation tools and agents released by vendors, overseeing testing and adoption as needed.Design and prototype use cases for HR AI applications.Collaborate closely with SBS HR to provide support for Tier-0/1 AI solutions.Facilitate integration of HR workflows across multiple systems.Conduct evaluations of build-vs-buy strategies for AI solutions.3. Collaboration & GovernanceServe as a liaison between HR, AI/Architecture, and IT departments.Ensure adherence to enterprise-level AI governance standards.Contribute to tracking the adoption of AI initiatives.Share reusable components and industry best practices with stakeholders.Qualifications & Experience5-10 years of experience in HR, business analysis, or digital transformation.In-depth understanding of HR processes and data management.Familiarity with low-code/no-code development platforms.Knowledge of workflow automation and conversational AI technologies.Mindset & Work EthicInquisitive, practical, and focused on delivering results.Ability to thrive in ambiguous situations.Strong collaborative abilities.A hybrid role bridging business and technology.InteractionsCollaboration with HR Centers of Excellence and HR Operations.Engagement with AI/Architecture and Central AI Teams.Coordination with IT and Shared Business Services.Interaction with vendors and technology platforms.
At SumUp, we champion the everyday heroes—those with the courage and determination to pursue their passions and realize their dreams.We place small business owners at the center of our mission, crafting powerful and user-friendly financial solutions designed to empower them in managing their businesses. With a founder's mentality and a collaborative, 'team-first' spirit, our diverse teams across Europe, South America, and the United States unite to ensure that small business owners can thrive in their endeavors.About the TeamThe Payments Reporting team is integral to SumUp’s financial infrastructure, developing systems that millions of merchants depend on daily to reconcile, report, and make sense of their finances. We are currently on an exciting journey to build a reporting platform that accommodates both external integrators and internal teams at scale, delivering functionalities from file-based exports to real-time API reporting. This role has emerged due to our ambitious growth outpacing the capacity of our current team of three backend engineers, and we need someone who can take significant ownership of complex backend tasks, allowing the team to accelerate critical architectural improvements.What You Will DoDevelop and maintain backend reporting features, including Payout Reports, Payment Reports, Fee Invoices, and Transaction Reports.Design and manage Reporting APIs (like Transaction History and Payout History) that cater to both external integrators and internal stakeholders.Lead the migration of core payments functionality from legacy systems, modernizing the infrastructure that supports our reporting platform.Ensure the operational health of reporting services through effective monitoring, incident response, and performance optimization.Actively engage in planning and refinement sessions, providing technical assessments and effort estimations.Mentor junior engineers through code reviews, collaborative sessions, and knowledge sharing.
SumUp’s Payments Tribe develops tools that make transactions easier for small businesses. The team in Sofia, Bulgaria, is searching for a Junior Backend Engineer with experience in Golang to help build and maintain these payment solutions. What you will do Collaborate with engineers to develop and maintain backend services using Golang Contribute to new features that support payment processing for users worldwide Assist in improving the reliability and usability of payment systems Role impact This position supports SumUp’s mission to simplify payments for small businesses and enhance the experience for users globally.
Join Tieto Tech Consulting, a prominent player in the global technology landscape, where we specialize in crafting robust technical solutions that facilitate large-scale digital transformation. At MentorMate, our focus is on combining strategic insights, innovative design, and exceptional engineering to deliver outstanding results. Our expertise spans enterprise web and mobile development, quality engineering, technical architecture, human-centered design, cloud solutions, DevOps, data analytics, and more. Here, you will have the opportunity to contribute to impactful projects for renowned global brands, while enjoying flexible working models, competitive compensation, and ample opportunities for professional growth within a diverse team of experts worldwide.About the RoleWe are seeking a talented React Native Engineer to enhance our dynamic team and take charge of developing high-quality mobile applications. This role involves designing and implementing scalable, performant, and user-friendly mobile solutions using React Native, with a strong focus on modern JavaScript (ES6+), effective state management, and clean architecture. Ideal candidates are those who excel in collaborative settings, enjoy tackling intricate challenges, and are passionate about delivering meaningful solutions.
Role overview Tietoevry seeks a Senior React Native Engineer with solid Node.js skills to join the team in Sofia. The focus is on building new features and enhancing mobile applications, always aiming for a smooth and effective user experience. Collaboration with colleagues from design, product, and engineering is a key part of the work. Main responsibilities Develop and maintain mobile apps using React Native Support backend features with Node.js Work closely with designers, product managers, and fellow engineers to deliver quality solutions Suggest and implement improvements for user experience and app performance Location This role is based in Sofia.
