Senior Backend Developer - Node.js

Role overview Jobgether seeks a Senior Backend Developer specializing in Node.js for a partner company in Slovenia. The position centers on building and maintaining backend systems that support digital financial products for a worldwide user base. Projects involve both ongoing platform improvements and new feature development. What you will do Design and imp…

Join the Digital Revolution with Aleph! At Aleph, we are pioneers in the digital advertising realm, actively shaping its future. As representatives of top-tier platforms including TikTok, Amazon, Google, and over 55 others, we operate in more than 130 markets worldwide.Our mission is to empower advertisers and brands to harness the full potential of these platforms' advertising capabilities. Through fostering enduring partnerships, we create limitless opportunities for effective advertising at both local and global levels.With a presence that spans continents, Aleph invites you to be part of a dynamic and innovative team where your contributions have a direct impact. If you are ambitious, forward-thinking, and eager to excel in a fast-paced, global environment, Aleph is the ideal place to advance your career.We are searching for a skilled Senior Backend Developer who excels in the design, construction, and maintenance of high-throughput, event-driven systems. In this pivotal role, you will significantly contribute to our core platform by making essential architectural decisions and mentoring fellow engineers. Your responsibilities will include ensuring reliable communication of our asynchronous services, seamless data flow, and scalable ecosystem to meet increasing demand. If you have a passion for message queues, stream processing, and the patterns that enable distributed systems, we want to hear from you!

Join Our Team as a Senior Node.js Backend EngineerAt Povio, we are dedicated to addressing startup challenges with a global impact. Since our inception in Y Combinator, overcoming startup hurdles has been part of our identity. We develop digital products that foster positive change and collaborate with innovative clients like The Pump, Queue, and LATCH, among others.If you aspire to engage with leading tech companies across the United States and Europe, this opportunity is for you!We are on the lookout for a Senior Backend Engineer to enhance our team in Ljubljana, Belgrade, Celje, Maribor, Prishtina, or Sarajevo.Our mission is to craft solutions with clean, high-quality code. Last year, our backend engineers faced a range of exciting challenges:Leveraging AI to automatically generate customized reports based on user-provided data;Developing a real-time messaging system capable of processing millions of messages daily using Node.js and WebSockets;Creating a serverless architecture using Node.js and AWS Lambda for a high-traffic NFT platform;Employing cutting-edge AI technologies (like ChatGPT) to semi-automate a significant client’s content generation system.Why Choose Povio?A role within a company that prioritizes engineering excellence and autonomy;Focus on continuous improvement and cross-departmental collaboration;Work with global clients while primarily adhering to EU time zones;Engagement in developer meetings to discuss technology and share experiences;One-on-one meetings with team leads for mutual feedback;Access to tech support through comprehensive Wiki resources, on-demand help desk, and available stack leads;Opportunities for professional growth, exposure to new technologies, and a chance to make a meaningful impact.Your Responsibilities:Develop applications using a modern web stack with a focus on Node.js, TypeScript, and NestJS;Code, test, and maintain Node.js based services;Analyze systems, design, and deliver assigned projects;Continuously explore, assess, and integrate new technologies to enhance development efficiency.Preferred Qualifications:5+ years of experience in web development, including a minimum of 3 years with JavaScript-based technologies;Excellent communication skills;Proficient in server-side development with Node.js, particularly in creating RESTful APIs using the Express.js framework;Leadership abilities and team management experience;A collaborative mindset and a humble attitude;Experience with AWS, basic DevOps practices, and scaling infrastructure for user growth;Strong SQL knowledge.

About TeadsTeads is a premier omnichannel advertising platform dedicated to delivering impactful outcomes for brand and performance advertisers across various screens. Our mission is to create significant business results by utilizing advanced predictive AI technology that connects high-quality media with stunning brand creatives, alongside context-driven addressability and measurement. Teads collaborates directly with over 10,000 publishers and 20,000 advertisers worldwide. Headquartered in New York City, we boast a diverse global team of approximately 1,700 professionals across more than 30 countries.To learn more, visit www.teads.com.About the Data Solutions TeamThe Data Solutions team operates as a critical component within our Innovation department, harnessing Teads' extensive publisher integrations and network scale to deliver precise targeting solutions and measurable business results. We develop the infrastructure that consolidates disparate signals from the Open Internet into actionable insights about the customer journey for our Supply-Side Platforms (SSPs) and internal Buying Engines.Our team comprises seasoned experts focused on high-scale production delivery across three key areas:Identity: Establishing connections between user journeys across Mobile, Desktop, and CTV.Measurement: A full-stack engine validating outcomes (Attention, Sales Uplift, Brand uplift).Targeting: A sophisticated segmentation and planning system for audience activation across multiple screens and buying engines.What Will You Do?As a Data Engineer, you will play a pivotal role in strengthening our data infrastructure. Your primary objective is to design, scale, and maintain high-performance data pipelines that support our entire product ecosystem. You will transition from basic reporting towards enhancing system reliability, scalability, and real-time processing capabilities.

Endava seeks a Senior .NET Developer for its Maribor office. This position centers on designing, building, and maintaining software solutions with .NET technologies. Key responsibilities Develop and maintain applications using .NET frameworks Collaborate with team members from various specialties to deliver software that meets client needs Support the design and quality of both new and existing solutions Teamwork and collaboration Regular interaction with cross-functional teams is a core part of this role. The Senior .NET Developer works closely with colleagues to ensure applications meet project objectives and client expectations.

Jobgether is looking for a Senior Unity Developer to help build new poker games. This position is based in Slovenia and centers on developing interactive and polished gaming experiences using Unity. Role overview The Senior Unity Developer will collaborate with game designers, artists, and fellow developers to turn creative ideas into functional poker games. The work involves translating concepts into smooth, enjoyable gameplay and ensuring technical quality throughout the development process. What you will do Develop and refine poker game features using Unity Work closely with cross-disciplinary teams to implement game concepts Apply advanced Unity programming skills to deliver high-quality results Requirements Extensive experience with Unity development Strong programming background Ability to collaborate effectively with designers, artists, and other developers

Join Our Team as a Senior Webflow Developer! Are you a talented Webflow Developer with a passion for creating exceptional interactive websites? At Povio, we’re seeking an experienced Senior Webflow Developer to enhance our team! You will work alongside some of the industry's top developers and designers to craft breathtaking digital experiences, ensuring flawless execution and smooth functionality.If you are eager to elevate your Webflow skills and contribute to an innovative team, we’re excited to connect with you!About UsPovio began its journey with Y Combinator, one of the most prestigious startup accelerators, celebrated for nurturing companies like Airbnb, Dropbox, and Stripe. Since our inception, we have been dedicated to creating high-quality digital products and have collaborated with notable figures such as Volkswagen, Alexis Ohanian (founder of Reddit), Serena Williams, and Arnold Schwarzenegger.As a proud Webflow Premium Partner, we are recognized for delivering high-quality, scalable Webflow solutions for ambitious global brands.Your Responsibilities:Design, develop, and maintain scalable, responsive, and high-performance websites using Webflow.Convert Figma designs into precise, production-ready Webflow implementations.Create structured CMS architectures and reusable components to facilitate scalable content management.Enhance website performance through SEO, AEO, accessibility, and Core Web Vitals optimization.Implement advanced interactions, animations, and custom functionalities as required.Integrate Webflow with various third-party tools, APIs, and marketing platforms.Work collaboratively with designers, engineers, and marketers to deliver seamless and optimized user experiences.Keep abreast of industry trends and Webflow's evolving features to enhance development efficiency and creativity.Communicate with clients and internal stakeholders, providing updates and feedback on project progress.

Role overview Endava seeks a Senior .NET Developer based in Ljubljana. The position centers on designing, building, and maintaining software applications with .NET technologies. Collaboration with colleagues from a range of disciplines is essential to deliver solutions tailored to client requirements. What you will do Develop and maintain applications using .NET frameworks Collaborate with cross-functional teams to deliver software projects Identify and resolve technical issues as they appear Apply technical expertise to support project objectives Requirements Extensive experience working with .NET technologies Ability to work effectively with colleagues from diverse backgrounds Strong problem-solving abilities

Join us in shaping the future of finance.At Robinhood, our mission is to make finance accessible for everyone. With an impending transfer of an estimated $124 trillion in assets to younger generations over the next two decades, we are at the forefront of a monumental cultural and financial shift. If you are eager to be part of this transformative journey, read on.About the Team & Role:Since its inception in 2011, Bitstamp has set the standard as the first regulated crypto exchange globally. As we embark on an exciting new chapter under the Robinhood umbrella, our Cloud Engineering Team plays a pivotal role in this evolution, managing our AWS infrastructure that powers our global outreach and reinforces the stability of the longest-running exchange.We are actively modernizing our platform, transitioning from a legacy monolith architecture to a dynamic, high-velocity ecosystem. This team doesn't merely maintain the platform; we are the visionaries driving its modernization, pushing towards full containerization and automated operational management to achieve the speed synonymous with Robinhood.As a Senior Backend Engineer within the Cloud Engineering team, you will be instrumental in our modernization efforts. Your responsibility goes beyond developing features; you will redefine the operational framework of our core platform. You will lead the charge in breaking down our monolith into a containerized, scalable architecture while ensuring smooth integration with Robinhood’s global systems.This role is based in our designated office locations, which align with our in-office work philosophy. For further details on our in-office expectations, please consult your recruiter.Applications for this position will be accepted until March 30th, 2026.This role requires participation in an on-call rotation to meet business needs.Your Responsibilities:Containerize the Core: Spearhead the initiative to transition our monolith application into a containerized setup, making essential code modifications for modern deployment and scaling.Robinhood Ecosystem Integration: Oversee and execute critical integration projects that align Bitstamp’s backend with Robinhood’s global infrastructure.

Join our dynamic international mobile game development team as a Senior Business Development Expert! In this pivotal role within the Business Development department, you will leverage your extensive expertise to build, maintain, and enhance relationships with app stores, publishing platforms, and key industry collaborators. Your strategic insights will guide our initiatives and foster innovative solutions that align with our company objectives. We seek a professional who can identify cross-company opportunities and significantly influence our most critical projects, thriving in a results-driven environment.Your ResponsibilitiesEnhance company relationships with app stores and publishing platforms to drive business success.Lead complex cross-departmental projects from conception to execution.Identify company-wide opportunities and employ analytical insights to prioritize initiatives based on business impact.Propose optimal solutions for complex challenges while considering business needs and corporate objectives.Collaborate with various business units, including production, distribution, and sales, to ensure strategic alignment.Stay informed about regulatory and legal matters in collaboration with the Legal department.Innovate processes and suggest improvements to tools and workflows as necessary.What We SeekAbility to grasp the overall vision of challenging projects and their connection to departmental and corporate goals.Excellent communication skills, adapting style to diverse audiences and conveying actionable insights and expert rationale to leadership.Proficient in designing project frameworks from the ground up and defining necessary project roles.

Are you passionate about mobile game development and eager to join a talented team? We are searching for a seasoned Software Engineer to contribute to the maintenance and evolution of the Outfit7 portfolio, which includes award-winning games. This role will involve everything from creating prototypes to implementing new features, and we seek someone with a proactive, lead-by-example approach.Your Responsibilities:- Design and implement game features and components for both new and existing mobile games using Unity (C#).- Enhance and maintain game code, libraries, and tools tailored for artists and designers.- Collaborate effectively within a multidisciplinary team and with various internal departments.Qualifications:- Strong skills in mobile game development using C# with Unity.- Exceptional communication and interpersonal abilities, with proficiency in English (written and spoken).- A positive, can-do attitude and a commitment to leading by example.- A proactive working style, capable of thriving in a fast-paced environment with tight deadlines.- An eagerness to learn new technologies and expand your skill set.Experience:- Over 6 years of professional experience in game development, particularly within mobile gaming.- A solid technical foundation in game development, programming patterns, data structures, computer architecture, and performance optimization.- Familiarity with C++ programming, various game engines, and shader programming is advantageous.What We Offer:- A permanent employment relationship with Ekipa 2, d.o.o. (Slovenia), with a six-month probation period.- Engaging work with daily challenges in a fun and relaxed team environment.- Involvement in exciting projects.- Opportunities for professional development through training, seminars, and conferences.- Access to a variety of sports, fitness, educational, and entertainment activities beyond work.

Join Our Team as a Senior React Engineer at PovioAre you passionate about crafting efficient, high-performance web applications? At Povio, we develop innovative digital products that truly resonate, partnering with renowned brands such as Volkswagen, Serena Williams, and Arnold Schwarzenegger. Our adventure started at Y Combinator, and we thrive on the challenges presented by collaborating with leading startups and innovators. We are now seeking a Senior React Engineer to elevate our team and contribute to creating top-tier solutions for our diverse clientele worldwide.Your Responsibilities:Design and implement robust, scalable React applications utilizing modern frameworks like NextJS, as well as tools such as TanStack Query and TypeScript.Optimize performance and quality to ensure fast, smooth, and responsive applications.Engage with clients and collaborate with internal teams to achieve project objectives and adhere to deadlines.Stay ahead of industry trends by researching and incorporating new tools and technologies that enhance development speed and product quality.Recent Technical Challenges Solved:Simultaneously rendering 30,000 markers on a map without browser crashes.Maintaining a smooth GUI while updating maps with extensive datasets.Creating a lazy-loading, infinite-scroll image list optimized for low-performing mobile devices.Ideal Candidate Profile:Over 6 years of experience in web development, including at least 3 years working with JavaScript frameworks, particularly React.Proficient in Single Page Application (SPA) design patterns and front-end security, with knowledge of OWASP top 10.Strong grasp of front-end performance optimization techniques—minimizing render times, ensuring smooth animations, and achieving 60fps.Experienced in HTML, CSS, and contemporary front-end technologies.A genuine enthusiasm for staying updated with the latest trends in web development.Excellent communication skills with the ability to collaborate effectively with team members and clients.A humble, team-oriented mindset prioritizing problem-solving and supporting others' success.Why You Will Love This Position:Global Exposure: Collaborate with leading U.S. and European companies, enhancing your skills in international markets.Exceptional Mentorship: Gain insights from industry-leading engineers and advisors, fostering your professional growth.Supportive Team: Work alongside a dedicated, driven team of experts who champion each other's success.Direct Impact: Your contributions will significantly influence high-impact projects with forward-thinking clients.Engaging Projects: Tackle innovative challenges that keep you motivated and evolving.

Welcome to Planet. We leverage the power of space to enhance life on Earth.Planet is at the forefront of designing, building, and operating the largest constellation of imaging satellites ever created. Our cutting-edge constellation provides an unparalleled dataset of empirical information through a transformative cloud-based platform, catering to key players in the commercial, environmental, and humanitarian sectors. We are a unique blend of both a space and data company.Our data empowers customers and users worldwide to innovate, generate revenue, conduct research, and tackle some of the most challenging issues facing our planet.By overseeing every aspect of hardware design, production, data processing, and software engineering, we have cultivated a dynamic workplace filled with experts from diverse fields.Emphasizing a people-first culture, we continuously strive to adapt and grow, ensuring that our team members are a priority as we scale. Join Planet and contribute to our mission of transforming perspectives on our world.Planet is a globally distributed company with remote employees and offices located in San Francisco, Washington DC, Germany, Austria, Slovenia, and the Netherlands.About the Role:The Global Monitoring Service (GMS) App Team is seeking a Senior Software Engineer to enhance and maintain our DevOps capabilities, ensuring swift, secure, and dependable releases. The GMS App Team develops a tailored application for Defense & Intelligence clients around the globe, delivering daily, near-real-time monitoring and analytical insights based on customer-defined sites utilizing Planet’s satellite data.This is a full-time, remote position based in Germany, the Netherlands, or Slovenia. If you are near an office, you are expected to work from that office three days per week.

Jobgether is looking for a Senior Full-Stack Engineer to help build and improve web applications using Python and React. This position is based in Slovenia and plays a key part in shaping features that impact users directly. Role overview This role focuses on designing and developing web applications that deliver a strong user experience. Collaboration with colleagues from different disciplines is essential, as projects often involve input from various teams. What you will do Develop and maintain web applications using Python and React Work closely with cross-functional teams to create and implement solutions Contribute to the overall quality and reliability of the platform Requirements Professional experience with both Python and React Ability to collaborate effectively with team members from different backgrounds Strong problem-solving skills and attention to detail

About TeadsTeads stands at the forefront of the omnichannel advertising landscape, dedicated to delivering impactful results for brand and performance advertisers across various platforms. With a strong emphasis on meaningful business outcomes, Teads harnesses the power of predictive AI technology to seamlessly connect high-quality media, stunning brand creative, and contextually relevant addressability and measurement. We proudly collaborate with over 10,000 publishers and 20,000 advertisers worldwide. Our headquarters are located in New York City, and our diverse team of approximately 1,700 professionals spans across more than 30 countries.For further insights, please visit www.teads.com.Team OverviewThe Performance Measurement team is an integral part of the Enterprise Performance pod, tasked with constructing a comprehensive measurement framework that empowers advertisers to accurately gauge the value of their ad expenditures across diverse screens. Our goal is to transcend basic metrics and deliver profound insights into advertiser outcomes, including incrementality and cross-screen attribution.The team:Develops and maintains a robust measurement framework that includes pixels, attribution, Multi-Touch Attribution (MTA), and Incrementality.Enhances data quality through effective pixel management and improved landing rates to secure high-quality attribution.Integrates third-party solutions to provide advertisers with reliable external validation of campaign performance.Creates innovative solutions for incrementality across both CTV and web environments to validate the true value of advertising spend.

Join our dynamic team at Outfit7 as a Senior Product Manager, where you will leverage your extensive knowledge of the mobile gaming industry to spearhead the development of innovative game titles. If you have a passion for creating immersive gaming experiences that connect with players and enjoy integrating business acumen with creativity, we want to hear from you!Key Responsibilities:Collaborate daily with cross-functional teams including Game Design, UX, Analytics, Marketing, Development, and Art to research and implement both existing and new game visions.Utilize your expertise to direct the team on which concepts to pursue, backed by clear reasoning and a solid understanding of the market trends and business objectives.Ensure timely delivery of project outputs by prioritizing tasks, maintaining focus, and asking insightful product-related questions.Articulate the game vision clearly to the team and stakeholders to ensure alignment and clarity.Provide constructive feedback and solutions to enhance ideas and game features.Manage the ideas and features backlog, ensuring priorities are set effectively.Identify and implement strategies to improve departmental workflows to enhance efficiency while fostering a positive and collaborative environment.

jobgether is looking for a Middle+ Unity Developer with a focus on Poker game development. This position is based in Slovenia and centers on building and maintaining Unity applications for poker games. Role overview This role involves designing, developing, and supporting high-quality poker games using Unity. Collaboration with designers, artists, and other developers is a key part of the work, ensuring creative concepts are delivered as engaging gaming experiences. What you will do Design and develop new features for poker games in Unity Maintain and improve existing Unity applications Work closely with team members to implement creative ideas Optimize game performance and troubleshoot technical issues Requirements Strong experience with Unity game development Background in building or maintaining games Interest in poker and gaming

Be a Part of the Future of Finance.Join us in our mission to democratize finance for everyone. With an anticipated $124 trillion in assets to be transferred to younger generations in the coming decades, we are at the forefront of a monumental financial evolution. If you are eager to influence this historic moment in finance, we invite you to explore this opportunity.Team Overview & RoleThe Core Exchange team is pivotal in managing all trading interfaces, including the Exchange REST API, FIX API, WebSockets, and market data services. Our goal is to provide an unparalleled trading experience for API users, emphasizing latency, reliability, and data integrity.As a Senior Software Engineer, you will play a crucial role in scaling our trading infrastructure, catering to the demands of our most sophisticated users. This high-impact position is ideal for engineers passionate about low-latency systems, precision, and directly impacting the tools utilized by traders around the globe.

About TeadsTeads is a premier omnichannel advertising platform dedicated to achieving impactful results for brand and performance advertisers across various screens. By focusing on meaningful business outcomes and leveraging advanced predictive AI technology, Teads connects quality media with stunning brand creatives, offering context-driven addressability and measurement. We proudly partner with over 10,000 publishers and 20,000 advertisers worldwide. Our headquarters is located in New York City, and we have a dynamic global team of approximately 1,700 people across more than 30 countries.For further details, please visit www.teads.com.Engineering Challenges at TeadsDeveloping efficient and user-friendly web products utilized by thousands of users from the world’s leading publishers, advertisers, and agencies.Diverse tech stack and system architecture optimized for performance, scalability, resilience, and cost-efficiency, primarily using Scala and TypeScript.Operating in a high-traffic environment with 2.2 billion users per month and processing 100 billion events daily, ensuring low latency and high availability (2 million requests per second, responding in under 150 milliseconds).Managing large datasets with millisecond access times for near real-time complex auction resolution (18 million predictions per second).Thriving in a rapidly evolving environment where we collaborate closely with Product teams and continuously adapt our Cloud infrastructure for new features and products.

Are you an experienced PHP developer with a passion for Laravel and a knack for crafting well-structured and clean code? Join our team of Laravel experts, where you'll find opportunities to deepen your knowledge and elevate your skills through engaging and interconnected new and existing projects.WHO ARE WE?We are a dynamic and bold team, now over 400 members strong after 12 years in business. We specialize in e-commerce and proudly deliver over 40,000 packages daily across 24 European countries, generating monthly revenues exceeding €15 million with sustained high growth each year.We develop internal web applications that support key business processes and enhance our efficiency. As a part of our team, you will lead the development of comprehensive solutions, design architecture, ensure code quality, and mentor less experienced developers.If you are a Laravel expert eager to design and optimize complex web solutions, we invite you to join our team. Learn more about us.WHY ARE WE HIRING?With each project, we grow – and 2026 promises to be a big year! We are looking for someone who is excited to join our team, contribute fresh ideas, and help us build something great.YOUR RESPONSIBILITIES WILL INCLUDE:Organizing and leading a team of Laravel developers.Setting and ensuring the achievement of individual and team goals.Reporting to management on progress and performance.Backend-focused development of Laravel applications.Developing new features for business process automation.Creating internal systems and applications.Maintaining internal systems.WHAT WE OFFER:The latest computer equipment.Problem-solving opportunities and challenges.