Senior Backend Programmer

Jobgether seeks a Senior Backend Developer with significant experience in Node.js. This role centers on designing and building scalable server-side applications and improving backend infrastructure. Collaboration with colleagues across multiple teams is a key part of delivering reliable software. Key responsibilities Design and implement backend systems using Node.js Enhance and maintain existing backend infrastructure Work closely with engineers, product managers, and other stakeholders to deliver high-quality features Requirements Extensive experience with Node.js in production environments Strong understanding of backend development principles Proven problem-solving skills Interest in coding and building effective solutions Location This position is based in Germany.

Role overview Jobgether is hiring a Senior Backend Developer with advanced Node.js experience for a partner company in Germany. This role is remote-first and centers on building and maintaining backend systems behind global digital financial products. The position involves supporting large-scale platforms that require reliability and performance. What you will do Design, develop, and maintain backend services using Node.js Enhance the platform architecture to ensure high availability and scalability Optimize API performance and strengthen infrastructure resilience Work closely with engineers in different regions as part of a distributed team Contribute to new products and feature development Address technical challenges in real-time systems, microservices, and distributed applications Requirements Proven experience as a backend developer with deep knowledge of Node.js Ability to design secure, scalable, and reliable backend solutions Comfortable in a high-performance engineering setting Demonstrates autonomy and takes ownership of work Motivated by solving complex problems with global reach Work environment Remote-first setup Collaborative and international team Emphasis on autonomy and meaningful contributions

Jobgether is seeking a Senior Node.js Backend Developer for an established partner company based in Germany. This remote-first position is part of a distributed engineering team focused on secure and scalable backend systems for digital finance services used worldwide. Role overview This role centers on designing and building backend infrastructure with Node.js, supporting real-time financial products and APIs. The team works on distributed systems that power services for customers across the globe. Developers in this position address complex technical challenges in backend architecture and performance, contributing to mission-critical services for next-generation digital finance. What you will do Design and implement backend infrastructure for real-time financial products using Node.js Develop and maintain distributed systems supporting a global customer base Tackle technical challenges related to backend architecture, scalability, and performance Collaborate with engineers in different regions to deliver reliable services Explore and evaluate new technologies to enhance products and processes Requirements Extensive experience as a Node.js backend developer, with a proven record in scalable system design and maintenance Ability to work independently and take ownership of projects Strong skills in optimizing performance and ensuring security for backend services Interest in solving complex problems and building infrastructure for global users Collaborative mindset and willingness to share knowledge within a remote team Work environment Remote-first culture with distributed teams Autonomy and ownership are encouraged Chance to contribute to the evolution of financial technology Location: Germany (remote-first)

Atolls is the world’s largest community-driven shopping platform, active in over 20 markets.Our mission is to empower millions to make informed spending decisions by connecting them with the right brands and retailers.With a team of over 1,000 professionals across 10 countries, we deliver products that are used daily on a global scale, giving you the opportunity to truly own your role and witness your impact. If you want to influence the platforms that consumers trust for confident shopping, we want to hear from you.About This Role:We are on the lookout for a Senior Backend Engineer (TypeScript, NestJS/Node.js) to join our Fulfilment team, based in Berlin or available for remote work from Germany. In this pivotal role, you will enhance our cashback reward platforms to create outstanding user experiences that enable our customers to earn and redeem rewards while shopping. As a vital member of our team, you will play a key role in developing and improving the digital environments our users depend on during their shopping journeys.Your contributions will significantly impact how millions of consumers interact with our platforms, guiding them towards smarter, fairer, and more rewarding choices.Our Benefits:At Atolls, we prioritize both your professional and personal advancement. Here’s what you can expect: • A culture that promotes personal and professional growth, with opportunities for internal mobility. • A supportive and open-minded team that values diverse perspectives and innovative ideas. • 32 days of paid vacation plus your birthday off, allowing you to recharge. • A flexible hybrid working model to ensure a healthy work-life balance. • A dedicated learning budget and internal training programs to facilitate your growth. • Mental health coaching to support your overall well-being.

Atolls is the world's largest community-driven shopping platform, operating in over 20 markets.We empower millions to make informed spending decisions through discovery, evaluation, and (re-)purchase by connecting them with the right brands and retailers.With a team of over 1,000 professionals spanning 10 countries, we create products that are utilized daily on a global scale. Here, you'll enjoy genuine ownership of your work and witness the tangible impact of your contributions. Want to influence the shopping experiences that people trust? Read on.About This Role:We are seeking a Senior Backend Engineer (TypeScript, NestJS/Node.js) to join our Fulfilment team in Munich or to work remotely within Germany. Your role will be crucial in enabling our customers to earn and redeem cashback on our rewards platforms, thereby creating outstanding user experiences and empowering consumers to make informed shopping decisions. As an integral part of our team, you will directly contribute to building and enhancing the digital platforms our users depend on throughout their shopping journeys.Your contributions will influence how millions of consumers engage with our platforms, guiding them to make intelligent, equitable, and rewarding choices.Our Benefits:At Atolls, we are committed to fostering both your professional and personal development. Here’s what we offer: • A culture that promotes personal and professional growth, with opportunities for internal mobility. • A supportive and open-minded team that values diverse perspectives and innovative ideas. • 32 days of paid vacation plus your birthday off, ensuring you have ample time to recharge. • A flexible hybrid working model to help you balance work and life. • Access to a learning budget and internal training to facilitate your growth in your role. • Mental health coaching to support your well-being.

Join Almedia, a forward-thinking company that accelerates career growth for those eager to push the boundaries. As Germany's aspiring second bootstrapped unicorn and Europe’s #3 fastest-growing company according to the FT1000 in 2025, we are revolutionizing marketing by rewarding our community of over 60 million users for engaging with top brands.We are on the lookout for a talented Backend Engineer to enhance our AdTech platform. If you have a passion for developing scalable and high-performance web applications and thrive in a collaborative team environment, we want to hear from you!Tech Stack:TypeScript, NestJS, Jest.GraphQL, REST, gRPC, WebSockets.MySQL, MongoDB, Redis, BigQuery.RabbitMQ, Google Pub/Sub.Docker, Kubernetes, GitLab CI/CD.Datadog.What You’ll Do Write clean, efficient, and scalable code utilizing NestJS and TypeScript.Create a data-driven product by integrating external services for A/B testing and feature flagging.Deliver high-quality, testable code swiftly, ensuring smooth operations.What You’ll Bring Proven experience in web development.Solid understanding of scalable systems.Experience with most of our tech stack in a production environment.An ownership mindset: taking full responsibility for your work.Strong English communication skills for effective teamwork.What Makes You a Great Fit Experience with microservices architecture.Background in DevOps/SRE practices.Why Choose Almedia? Dynamic work environment.Fast career advancement opportunities.Innovative projects with real impact.

Join our dynamic team at dev2 as a Backend Software Engineer! In this role, you'll have the opportunity to design and develop robust backend systems that drive our innovative products. Your expertise in backend technologies will play a crucial role in enhancing our software solutions and improving the user experience.We are looking for passionate individuals who thrive in a collaborative environment. If you are eager to tackle complex challenges and contribute to impactful projects, we want to hear from you!

Join our dynamic and innovative team at bitlane as a Senior Backend Developer. We are seeking a passionate software engineer to contribute to our product development journey from conception to deployment and beyond. In this role, you will collaborate closely with project managers and frontend developers to ensure that we meet and exceed our project requirements. The ideal candidate will possess a deep understanding of software engineering principles and industry best practices, delivering clean, maintainable, and error-free code with robust test coverage. You will be responsible for writing automated tests, conducting code reviews, and taking end-to-end ownership of your projects. We value problem solvers with an inquisitive and innovative mindset, ready to leverage their software development skills to create new services. Your role will involve backend development across a variety of projects, ranging from small applications and single-page websites to comprehensive e-commerce systems and complex CRM solutions. If this resonates with your skill set, we look forward to receiving your application!Responsibilities:Collaborate with our software team to design and launch new featuresEnhance our product and codebase with your analytical insightsMaintain our systems at the cutting edge while developing our growing environmentExpand our existing web technology portfolioCreate new microservices using AWS and improve existing onesDevelop and maintain tools for software and data interactionDefine project scope in collaboration with project managersCommunicate your work status and meet deadlines established with project managers

Join our dynamic team at ABOUT YOU as a Backend Engineer in our Recommendation department. In this role, you will work collaboratively with cross-functional teams to develop, maintain, and enhance scalable backend systems that power our personalized recommendation solutions. You will have the opportunity to make a significant impact on user experience by leveraging data-driven insights and innovative technologies.

Join Our Team at JimdoAt Jimdo, we empower solopreneurs and micro-businesses to thrive by simplifying the journey of building successful online ventures. Since our inception in 2007, we have evolved from a small initiative in a Northern German farmhouse to a leading AI-driven platform with a diverse team of over 220 professionals from more than 50 nations, helping to create over 36 million websites worldwide.We believe in personalized, data-driven guidance that combines design, business tools, and cutting-edge AI technology to transform real user insights into actionable steps for our customers. Our mission is clear: to help self-employed individuals navigate the complexities of running a business with confidence.Your Role:As a Senior Backend Engineer, you will be instrumental in enhancing and scaling our backend systems, ensuring they deliver optimal performance and reliability. You will collaborate with cross-functional teams to create seamless integrations and contribute to our commitment to innovation.Your Contributions:Design, develop, and enhance API services with a focus on scalability and performance.Work closely with cross-functional teams to understand requirements and ensure backend solutions are fully integrated.Maintain high standards of code quality through thorough reviews and testing.Diagnose and resolve backend issues to minimize downtime and enhance performance.Stay abreast of industry trends and best practices in backend development.Provide valuable insights and feedback to the Tech Lead and stakeholders regarding backend solutions.

At Enpal, we're on a mission to revolutionize how energy is consumed. Our vision is to provide solar systems on every rooftop, battery storage in every home, and electric vehicles in every garage. Our comprehensive solutions encompass everything from solar installations to smart meters and heat pumps, all powered by our advanced AI platform, Enpal.One+. This innovative platform seamlessly connects a multitude of systems, optimizing energy procurement and feed-in across the market.Are you passionate about creating impactful solutions that enhance the quality of life for thousands of households? Your contributions at Enpal will not only help deliver clean energy but also foster a significant shift in energy usage for the future.Your RoleAs a Senior Software Engineer - Node.js (f/m/x), you will tackle intricate challenges in the realm of renewable energy solutions. Your responsibilities will range from digitizing solar panel installation planning with engaging frontend applications to developing APIs that provide real-time energy data. Additionally, you will be instrumental in scaling and managing our cloud infrastructure on Azure.We pride ourselves on our agility and commitment to professional development. Our vision of making sustainable solar energy accessible to everyone thrives on a customer-centric approach, fostering collaboration between software development, product management, and innovative business strategies.Join us in enhancing your professional journey, participating in the energy transformation, and taking shared responsibility for the sustainable future we aspire to create! We eagerly await your application.At Enpal, you will:Build Software: We prioritize delivering incremental value in every iteration, celebrating improvements that enhance user experience and help achieve our climate objectives.Enhance Developer Happiness: We aim to automate processes, reducing manual testing and deployment times, thereby improving the overall stability of our solutions.Grow & Learn: Whether you're an expert in Kafka or new to Azure Bicep, we are committed to facilitating your growth through shared knowledge and resources.Engage in Architecture & Design: Collaborate with cross-functional teams to design scalable and robust software architectures.

Join our dynamic INSPO team as a Senior Backend/Infrastructure Developer, where your expertise will shape innovative solutions that enhance our infrastructure. In this fully remote role, you will collaborate with a passionate group of professionals dedicated to excellence. Your responsibilities will include designing, implementing, and maintaining scalable backend systems, ensuring optimal performance and security.

Join the innovative INSPO team at ebreuninger GmbH & Co. as a Senior Backend/Infrastructure Developer. We are seeking a passionate individual who excels in backend development and infrastructure management to help us enhance our digital solutions. This is an excellent opportunity for someone who thrives in a collaborative, remote work environment.

Join our innovative INSPO team as a Senior Backend Infrastructure Developer. In this role, you will leverage your expertise to design and implement robust backend solutions that support our growing infrastructure. Collaborate with cross-functional teams to ensure seamless integration and optimization of our systems, all while enjoying the flexibility of remote work.

As an established IT service provider, we create modern, scalable software solutions for clients across various industries. We leverage the latest technologies, agile methodologies, and a passionate team dedicated to crafting digital products. We are looking to strengthen our team with experienced Senior Backend Developers / IT Consultants (m/f/d) who love technological diversity, enjoy holistic problem-solving, and provide competent consulting to our clients.You will develop end-to-end solutions that deliver real value to our clients while actively designing microservices and modern software architectures.You will build and operate high-performance backend services using Java or Kotlin, utilizing Spring Boot for complex software implementation, and reliably integrating databases and external interfaces.You are committed to high software quality, employing automated testing and clean code principles.You will confidently guide clients through architecture, technology, and implementation questions, translating technical concepts into understandable terms.You will collaborate closely with UX/UI designers, product owners, and developers from other disciplines, actively contributing to agile teams.You will conduct code reviews, provide constructive feedback, and ensure adherence to best practices, architectural guidelines, and high code quality within the team.

Join our innovative team at dev2 as a Senior Backend Software Engineer, where you'll be instrumental in crafting robust and scalable software solutions. In this role, you will collaborate closely with cross-functional teams to design, develop, and deploy high-performance backend systems.

About Qualifyze,Founded in 2019, Qualifyze is at the forefront of supply chain compliance management within the Life Sciences sector, earning the trust of over 1,500 pharmaceutical and healthcare organizations globally. Our comprehensive digital solutions seamlessly connect manufacturers, suppliers, and a vast network of over 250 auditors and quality professionals.With an impressive record of more than 4,500 audits conducted across 85+ countries, we boast the largest and most accurate supplier network, complemented by robust data analytics tools. Qualifyze is your ideal partner for ensuring quality compliance and mitigating supply chain risks in the Life Sciences industry.Role OverviewWe are on the lookout for a Senior Backend Engineer to enhance our Tech department, particularly within the Engineering team. You will join a dynamic group of over 50 professionals dedicated to engineering and data. Our technology stack prominently features TypeScript with React and Node.js, alongside Java for specific projects.At Qualifyze, we believe that software engineering transcends mere coding—it’s about shaping the future. We seek engineers who recognize that every line of code contributes to a lasting legacy. As part of our team, you will focus on streamlining feedback loops, developing scalable solutions, and fostering clear communication with the business. You will advocate for clean architectures, robust testing strategies, and domain-driven design principles to deliver substantial value at every step.Main ResponsibilitiesLead backend architecture, testing, and technical decisions across teams, ensuring scalable, high-quality outcomes while adhering to best practices.Tackle and resolve intricate tasks within large-scale projects, or independently manage smaller projects.Effectively communicate and collaborate with team members, the DevOps team, product managers, and the design team. You will spearhead the technical strategy, translating product requirements into clear, functional solutions.

Full-time | Munich | Seed Stage | Equity + SalaryJoin Us in Building a Transformative CompanyAt Knowlix, we are dedicated to amplifying the productivity of small businesses tenfold. Our goal is to establish ourselves as the premier platform for human-AI and AI-to-AI collaboration.Although we are in the early stages, we have grand ambitions. This is a unique chance for you to influence a product that will reach millions and set industry standards.We prioritize speed, frequent iterations, and exceptional quality. If you are passionate about building, deploying, and scaling innovative solutions, particularly leveraging AI for significant improvements, this is the opportunity for you.Why Choose Knowlix Now?We are a well-funded seed-stage startup, supported by top-tier investors and seasoned founders.Our technology is functional and our initial users are experiencing its transformative effects.We are targeting a vast market with a product that revolutionizes work dynamics.As one of our early team members, you will have significant influence and ownership over the company’s direction.We believe that rapid progress is achieved through focused efforts and continuous iteration.This isn't just a job; it's a chance to contribute to a once-in-a-generation company if we execute our vision effectively.The RoleWe are seeking a pragmatic and enthusiastic Backend Engineer with robust skills in Python and a strong understanding of SQL and cloud infrastructure. You will collaborate closely with AI researchers, product designers, and DevOps engineers to create a seamless interface between human users and our AI systems. Familiarity with Go, Rust, and Swift is advantageous, especially for future components such as microservices or mobile interfaces.

About the RoleWe are on the lookout for two highly skilled backend engineers to join our dynamic team in Berlin. You will be instrumental in advancing the development and implementation of our technology, enhancing our capacity to create core backend functionalities, and empowering other teams to utilize this backend for their projects.If you have a passion for creating exceptional products, thrive in a fast-paced environment, and are eager to contribute to the success of an ambitious startup, this is the perfect opportunity for you.Our Tech Stack:Python / FastAPIPostgreSQL / MongoDB / ElasticCloud LLM providers + bare metal GPUsGCPAs an early team member, you will assume significant responsibilities from day one, with the chance to influence our technological architecture and infrastructure.Join one of the most ambitious AI companies today, collaborating with a world-class team of experts in their fields, and experience an incredibly stimulating work environment. In This Role You WillLead the delivery of complex projects, coordinating with cross-functional teams, and ensuring timely completion of essential components.Develop a deep understanding of Reliant's vision and integrate this into your architectural and process decisions in daily operations.Offer insights to refine UI/UX concepts and assist in the planning of backend and infrastructure development.Take proactive responsibility for long-term code quality and architecture. About YouThe ideal candidate will have a proven track record in backend or full-stack development, with a focus on rapid innovation and effective systems design that supports growth opportunities for both the product and the team.To thrive in this role, you should possess the following skills and experiences:5+ years of demonstrated experience in building backend services or distributed systems.Ability to design, develop, test, and maintain backend services and APIs that support product features, including writing robust, production-quality code.Engage in system and service design; contribute to architectural discussions and make informed trade-offs regarding scalability, latency, cost, and reliability.Navigate ambiguity effectively; translate vague or high-level requirements into actionable implementation plans.Collaborate with cross-functional partners including product management, frontend, UX, data, and operations to define requirements, plan implementations, and deliver features.Ensure high code quality by writing, reviewing, and improving unit/integration tests; actively participate in code reviews.