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Senior Full Stack Engineer Platform jobs in Sofia· Page 3

Results 41–60 of 257 for “Senior Full Stack Engineer Platform” in Sofia.

257 jobs found

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Bosch Group logo
Full-time|On-site|Sofia, Engineering Center Sofia

Join the Bosch Group as a Senior Software/System Requirements Engineer in the Automotive Sector, where you will play a pivotal role in designing and optimizing software solutions for cutting-edge automotive technologies. As a key member of our engineering team, you will engage in requirements engineering, ensuring that our products meet the highest standards…

Nov 10, 2025
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trading212 logo
Full-time|On-site|Sofia

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.

Jun 21, 2023
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Mirantis logo
Full-time|On-site|Sofia

Join our dynamic team as a Senior DevOps Engineer at Mirantis, where you will spearhead the design, implementation, and enhancement of customer infrastructure and CI/CD pipelines. Your expertise will be pivotal in collaborating with cross-functional teams to ensure optimal system performance, scalability, and security. In this influential role, you will also provide mentorship to junior engineers, champion automation initiatives, and play a key part in strategic decisions concerning infrastructure and deployment practices. This position is perfect for a seasoned professional with a strong foundation in cloud technologies, containerization, scripting, and DevOps best practices.Main Responsibilities:Architect and implement customer infrastructure across various cloud providers and bare metal environmentsDevelop and oversee Kubernetes clusters for microservices-based applicationsEnhance and streamline CI/CD pipelines for efficient software deliveryDesign, monitor, and manage development, staging, and production environmentsFacilitate knowledge sharing with customers during deployment projectsCollaborate with internationally distributed teams to tackle technical challenges and drive process improvementsMentor and cultivate the growth of fellow DevOps EngineersContribute to the Mirantis deployment knowledge baseContinuously enhance tools and technologies used in our processes

Feb 17, 2026
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Redis Ltd. logo
Full-time|On-site|Bulgaria

About UsAt Redis, we are at the forefront of technology, powering the applications that millions rely on every day. Our innovative solutions streamline processes and enhance user experiences across various industries. If you've ever checked the weather, made an online payment, or tracked your flight status, you've touched our technology. Join us in our mission to create a faster, simpler world.We are seeking a talented and experienced Senior Software Engineer with a passion for polyglot programming, particularly in Go. You'll play a pivotal role in advancing the Redis ecosystem by enhancing the developer experience through collaboration with open source communities and contributing to our widely used client libraries.Why You'll Love This RoleIf you thrive in a collaborative environment and have a passion for open source, this is the perfect opportunity for you. We believe that APIs should be intuitive and delightful to work with, and you’ll have the chance to drive that vision forward. Your strong engineering mindset will help transform innovative ideas into reality as you work across multiple programming paradigms.Your ResponsibilitiesContribute to the development of key client libraries like go-redis, redis-py, predis, and node-redis.Engage with open source communities to foster collaboration and innovation.Promote best practices to ensure an exceptional developer experience.Assist in adding support for new Redis features in client libraries.Act as a technical lead on cross-language initiatives.Work closely with external contributors, library users, product managers, and fellow engineers to drive projects forward.QualificationsStrong team collaboration skills.Proficiency in multiple programming languages and paradigms.Experience with open source projects and community engagement.A passion for creating intuitive and enjoyable APIs.

Nov 12, 2025
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Ocado Group logo
Full-time|Hybrid|Sofia, Bulgaria

Join Our Innovative Team as a Senior Backend Software Engineer! The Mobile Fulfilment Systems team at Ocado Group is pioneering state-of-the-art automation solutions for in-store and warehouse online order fulfilment. We harness the power of distributed backend systems, user-friendly mobile applications, and advanced autonomous robots to facilitate rapid, scalable, and cost-efficient order collection. As a key member of our Mobile Fulfilment Systems team, particularly within the In-Store Fulfilment (ISF) division, you'll be involved in designing and developing distributed cloud-based systems, PWA mobile applications, and web technologies aimed at automating the fulfilment of online customer orders at scale. What is In-Store Fulfilment? ISF is a comprehensive cloud-based solution that empowers stores to efficiently fulfil customer orders, enhancing the shopping experience while minimizing operational costs. We are currently operational in over 1,000 stores across 11 countries and 4 continents, handling more than 300,000 customer orders weekly. In Your Role as a Senior Software Engineer, You Will: Design, develop, and maintain large-scale, high-availability distributed systems. Lead technical initiatives from conception through to implementation, fully owning the planning, coordination, design, and execution processes. Ensure solutions consistently meet quality standards by adhering to best practices in testing, code quality, monitoring, and alerting. Contribute to the long-term architectural and product vision. Utilize AI tools, such as Claude Code, Gemini, and GitHub Copilot, to enhance our development processes. Engage in all phases of the software development lifecycle within an agile team framework. Continuously seek to enhance our processes, workflows, and tools. Collaborate closely with business and product partners to translate system requirements into engineering solutions. Participate in our on-call rotation to support production services. Mentor and train both new and existing team members in their professional development.

Apr 1, 2026
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Ocado Group logo
Full-time|Hybrid|Sofia, Bulgaria

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.

Apr 20, 2026
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Trading 212 logo
Full-time|On-site|Sofia

Join Our Mission to Empower Wealth BuildingAt Trading 212, we are revolutionizing the trading and investing landscape by crafting outstanding products that our users adore.We thrive on a culture of excellence and rapid innovation, which is central to our achievements.Currently, we proudly serve over 4.5 million clients, managing assets exceeding €30 billion, showcasing the scale and trust we have established in a short period.Your ResponsibilitiesOversee quality assurance tasks across various projects, guaranteeing that our software aligns with the highest standards of quality and reliability.Engage actively in design and requirements reviews to assure that features and products are testable and user-friendly.Lead testing initiatives, including the development and maintenance of automation frameworks and scripts.Plan, implement, and execute testing activities across different product domains - Database, integration, functional, UI/UX.Analyze testing results to pinpoint areas for enhancement and suggest necessary process modifications.Provide technical guidance and process mentorship to junior team members.Collaborate within compact, autonomous teams with quick release cycles - we leverage agile, independent teams of talented individuals with just the right processes to maintain velocity without chaos.Essential QualificationsA minimum of 5 years of experience in software quality assurance, emphasizing automation testing.A solid grasp of software testing concepts, methodologies, and tools.Proficient programming skills in at least one language (e.g., Python, TypeScript, Java).Familiarity with test automation frameworks and tools (e.g., Playwright, Selenium, Appium, Pytest, TestNG).Experience with API testing tools such as Postman, SoapUI, or similar.Strong knowledge of relational database management systems (RDBMS).Familiarity with agile methodologies like Scrum or Kanban.Exceptional analytical and problem-solving abilities.Excellent command of the English language and outstanding communication skills.A deep-seated passion for quality assurance. Preferred QualificationsRelevant experience or certifications in quality assurance or software testing are a plus.

Jun 28, 2023
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CyberArk Software Ltd. logo
Full-time|On-site|Sofia

Join our dynamic team at CyberArk as a Senior Software Engineer specializing in Secrets Hub. In this role, you will be at the forefront of developing innovative software solutions that enhance security and manage sensitive information effectively. Your expertise will contribute to designing, implementing, and maintaining robust applications that support our clients' security needs.

Mar 19, 2026
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Bosch Group logo
Full-time|On-site|Sofia, Engineering Center Sofia

Join our dynamic team at Bosch Group as a Senior Software Engineer specializing in AUTOSAR for the automotive sector. In this pivotal role, you will contribute to innovative projects that shape the future of mobility. Collaborate with cross-functional teams to design, develop, and implement cutting-edge software solutions that enhance vehicle performance and safety.

Nov 10, 2025
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CyberArk Software Inc. logo
Full-time|On-site|Sofia

Join CyberArk Software Inc. as a Senior Software Engineer specializing in Workload Identity. In this pivotal role, you will be responsible for designing and implementing robust software solutions that enhance the security and efficiency of workload identity management. Collaborate with a talented team of engineers, contribute to innovative projects, and drive the development of cutting-edge technology.

Apr 13, 2026
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TietoEVRY logo
Full-time|On-site|Sofia

Join Tieto Tech Consulting as a Senior Network Engineer specializing in Messaging. In this pivotal role, you will design, implement, and support advanced network systems to ensure seamless communication across various platforms. You will collaborate with cross-functional teams to enhance our messaging infrastructure, troubleshoot complex network issues, and develop innovative solutions that drive operational excellence.

Apr 2, 2026
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TietoEVRY logo
Full-time|On-site|Sofia

Role Overview Tieto Tech Consulting is looking for a Senior Software Engineer in Test to join the team in Sofia. This role focuses on improving software development processes by building and maintaining testing frameworks. Collaboration with cross-functional teams is central to the work, with a shared goal of delivering high-quality software solutions. What You Will Do Design, implement, and maintain testing frameworks Work closely with teams across disciplines to support software quality Contribute ideas and solutions to improve how testing is done What Helps You Succeed Experience creating and maintaining test frameworks Strong problem-solving skills and a proactive mindset Interest in technology and quality assurance Location This position is based in Sofia.

Apr 20, 2026
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Tide logo
Full-time|On-site|Bulgaria

ABOUT TIDEAt Tide, we empower small and medium-sized enterprises (SMEs) to optimize their operations, saving both time and money. We provide not only business accounts and banking services but also a comprehensive suite of user-friendly administrative solutions ranging from invoicing to accounting.Tide is revolutionizing the small business banking sector with over 1.8 million members worldwide, including regions such as the UK, India, Germany, and France.By leveraging cutting-edge technology, we design all solutions with SMEs in mind. With rapid onboarding processes, minimal fees, and innovative features, we thrive on making data-driven decisions to fulfill our mission: to enable SMEs to focus on what they love.Tide Facts:Available for SMEs in the UK, India, Germany, and FranceOver 1.8 million members: 800,000 in the UK and 1,000,000 in India, with rapid growthSecured over $300 million in fundingMore than 2,500 diverse employees globallyHeadquartered in Central London, with a technology and member support center in Sofia, Bulgaria, and additional offices in Serbia, Romania, Lithuania, Hyderabad, Gurugram, New Delhi, Berlin, Paris, and Luxembourg.ABOUT THE TEAM:Our engineering team, comprising 40+ dedicated professionals, is focused on designing, developing, and managing a rich product catalog across various business domains (e.g., Payment Services, Business Services). With an extensive roadmap ahead, we constantly face exciting challenges. We trust our engineers to make impactful technical decisions that influence multiple teams and shape the future of Tide's Global One Platform. This is a unique chance to significantly contribute by taking ownership of engineering practices within a rapidly growing company!Our engineers work in small, autonomous teams dedicated to specific domains, overseeing the entire lifecycle of various microservices within Tide’s service catalog. They self-organize, collaborate to tackle technical challenges, and establish their own guidelines within the different Communities of Practice, regardless of their current position in our Growth Framework.ABOUT THE ROLE:Engage with our event-driven microservice architecture, which currently includes over 200 services managed by 40+ teams. You will be responsible for defining and maintaining the services your team owns (you design, build, run, and scale them globally).

Feb 2, 2026
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Dev.Pro logo
Full-time|Remote|Remote — Sofia, Sofia City Province, Bulgaria

Are you ready to embark on an exciting IT career journey with Dev.Pro? Join our exclusive screening process that provides valuable career insights along with personalized feedback on your skills.At Dev.Pro, a company driven by professionals, we offer engaging and challenging projects with world-class clients, utilizing a modern technology stack that caters to both technical and non-technical specialists. What you will gain by applying:A customized career growth plan aligned with your professional aspirationsExpert feedback aimed at enhancing your skills for sustained successPriority consideration for suitable job openings within Dev.ProThe chance to collaborate with leading global corporations and engage in industry-defining projects We would love to learn more about you so that when an ideal position arises, you will be the first we contact! Are you the right fit?Over 5 years of experience in software development using C# and .NETProven experience in building backend services and REST APIsFamiliarity with .NET Core / .NET 6+ or newer versionsExtensive experience with relational databases (SQL Server, PostgreSQL, MySQL, etc.)Experience with cloud platforms such as Azure, AWS, or GCPExperience in designing or developing microservices or distributed systems in production environmentsA solid understanding of application architecture and design patternsStrong grasp of object-oriented programming (OOP) principlesBonus SkillsExperience with message queues or event-driven systems (Kafka, RabbitMQ, Service Bus, etc.)Familiarity with Docker or containerized environmentsExperience with CI/CD pipelinesTake the first step today:1. Submit your CV in English.2. Arrange a 15-30 minute call with recruiters from Dev.Pro.3. Participate in a 30-minute interview focused on assessing your soft skills.4. Complete a 1-hour online evaluation of your technical skills by our experts.In less than 2 hours, you will have a clear understanding of your standing in your career and be ready for exciting job offers from Dev.Pro! About Dev.ProDev.Pro is a US-based outsourcing company with a creative and ambitious mindset, delivering exceptional software products since 2011. Renowned for our strong focus on human values, Dev.Pro fosters a work environment that is fair, inclusive, open-minded, and welcoming to individuals from diverse backgrounds. By joining Dev.Pro, you will experience growth alongside professionals dedicated to supporting your career journey.Interested in learning more?Click here

Mar 30, 2026
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devexperts logo
Full-time|On-site|Sofia

Join devexperts as a Senior Systems/Networks Engineer (Tier 3) where you will play a crucial role in managing and optimizing our network and systems infrastructure. You will be responsible for troubleshooting complex issues, implementing scalable solutions, and collaborating with cross-functional teams to enhance system performance and reliability.

Mar 27, 2026
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Man Group logo
Full-time|On-site|Sofia

About Man GroupMan Group is a leading global alternative investment management firm dedicated to delivering exceptional performance for discerning clients through our Systematic, Discretionary, and Solutions offerings. With a foundation built on talent and cutting-edge technology, our single and multi-manager investment strategies are backed by extensive research and cover public and private markets across all major asset classes, with a significant emphasis on alternative investments. We adopt a partnership approach when working with clients, fostering deep relationships and crafting customized solutions to achieve their investment objectives, benefiting millions of retirees and savers.Headquartered in London, we oversee $227.6 billion* in assets and operate numerous offices worldwide. Man Group plc is publicly traded on the London Stock Exchange under the ticker EMG.LN and is part of the FTSE 250 Index. For more details, visit www.man.com* As at 31 December 2025The RoleWe are on the lookout for Senior Python Engineers to become integral members of our technology teams, tackling a variety of challenges that encompass systematic trading, quantitative research, a petabyte-scale data platform, and AI-driven solutions.This position offers an exciting opportunity to collaborate with and learn from a team of highly skilled engineers, while also developing your technical and financial services expertise. You will engage with state-of-the-art technologies and systems that are crucial to the operations of Man Group.

Mar 19, 2026
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CyberArk Software Ltd. logo
Full-time|On-site|Sofia

Join CyberArk as a Senior Software Engineer specializing in Secure AI Agents, where you will play a crucial role in developing innovative solutions that enhance security protocols. You will collaborate with a talented team of engineers and work on cutting-edge technology aimed at protecting critical business infrastructures.

Mar 30, 2026
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GoDaddy Inc. logo
Full-time|On-site|Bulgaria

Role overview GoDaddy seeks a Senior Site Reliability Engineer to join its team in Bulgaria. The focus of this role is to maintain reliable, available, and high-performing systems that support GoDaddy’s global services. Hands-on experience with monitoring, incident response, and automation is essential for success in this position. Key responsibilities Design and architect scalable systems that enable business growth. Develop and enhance monitoring and alerting to identify issues early. Lead incident response efforts to reduce downtime and limit impact. Automate operational tasks to boost efficiency and system reliability. Collaborate with other teams to strengthen infrastructure and share expertise. Promote continuous improvement in operational practices and system performance. Collaboration and impact This position provides the opportunity to influence infrastructure decisions and work closely with teams across GoDaddy. A proactive approach and dedication to operational excellence will help ensure dependable service for customers worldwide.

Apr 23, 2026
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Tietoevry logo
Full-time|On-site|Sofia

MentorMate, a subsidiary of Tieto Tech Consulting, is seeking a talented and driven Senior Telco Engineer (Messaging) to enhance our Telecom Team's capabilities for our esteemed client BICS.Become part of BICS, a global telecommunications enabler with an extensive physical network across the globe. Elevate your skills while collaborating with top-tier mobile carriers worldwide and gain hands-on experience with a vast network that includes terrestrial, underwater, and satellite points of presence. Join our long-standing partnership with BICS, established in 2010, and secure your future with us!Deepen your telecom knowledge across a diverse portfolio of BICS products, including Voice, Cloud, Signaling, LTE, IoT, and more.Experience exceptional growth opportunities through BICS's extensive network and its global clientele.Become an integral part of our international 24/7 telecom team, spanning from Brazil to Singapore.Join us in our journey of growth and innovation!

Mar 13, 2026
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SumUp logo
Full-time|On-site|Sofia, Bulgaria

At SumUp, we celebrate the everyday heroes who possess the courage to pursue their passions and the determination to turn their dreams into reality. Our mission revolves around empowering small business owners with innovative, user-friendly financial solutions that simplify the management of their enterprises. With a founder's mentality and a 'team-first' attitude, our diverse teams across Europe, South America, and the United States collaborate to ensure that these entrepreneurs can thrive in their endeavors. The Global Bank team at SumUp is responsible for developing the foundational infrastructure and services that provide merchants with digital bank accounts, enabling them to manage their finances efficiently and reliably. Within this team, the Balance Management Squad is pivotal. We are currently nearing a significant milestone: the consolidation and modernization of our balance management system in Europe. Our next ambitious project is to establish a global transaction history service—a unified platform that offers merchants consistent and transparent insights into their financial activities across all regions. As a Backend Engineer, you will play a crucial role in modernizing existing systems while balancing innovation and stability. You will collaborate with teams across various regions to build reliable services that can navigate diverse markets with unique regulatory requirements. If you are passionate about solving complex problems in high-load systems, have a curiosity for banking, and are eager to join a team that embraces challenges, we would love to connect with you.

Feb 19, 2026

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