Senior Backend Engineer - TypeScript at commercetools | Berlin

Join commercetools as a Senior Backend Engineer specializing in TypeScript, where you will play a pivotal role in designing and implementing scalable backend services. Collaborate with a talented team to innovate and enhance our platform, ensuring top-notch performance and reliability.

About commercetools At commercetools, we believe that true innovation is built on a solid foundation, which is a harmonious blend of our cutting-edge products and dedicated team. Our diverse group of innovators, builders, and problem-solvers have redefined the landscape of commerce architecture, fostering a culture of exploration and experimentation. Together, they drive the evolution of commerce, empowering ambitious brands around the globe. We are committed to facilitating the next generation of commerce for our clients. From AI-powered tools that enhance business decisions to seamless integration of digital and brick-and-mortar shopping experiences, we enable our clients to experiment, scale, and thrive without constraints. In our environment, the best ideas prevail regardless of their source. Here, you will have the autonomy, resources, and trust to shape the future of commerce while also crafting your own journey.

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.

Your ResponsibilitiesTake ownership of backend systems that facilitate thousands of hotel bookings daily.Design, develop, and maintain our core booking infrastructure, ensuring robust integrations with PMS platforms, channel managers, and payment processors.Define and support a resilient API layer that drives our React frontend applications.Enhance engineering standards by demonstrating exceptional system design, effective communication, and technical leadership.Collaborate closely with the founders to influence the long-term architecture and cultivate a strong engineering culture.

About commercetoolsAt commercetools, we believe that true innovation is rooted in a solid foundation, achieved through the right synergy of our products and our talented people. Our team is made up of visionary builders, adventurous explorers, and creative problem-solvers. These are the individuals who have not only transformed commerce architecture with a more flexible approach but also fostered a culture of experimentation that drives our success. Together, we are the pulse of commerce innovation today. We empower the next generation of commerce solutions for our clients—whether it's AI-driven tools for informed decision-making, merging digital and physical shopping experiences, or creating new avenues for industries to engage with their customers. We enable the world’s most ambitious companies to experiment, scale, and thrive without limits. Here, the best ideas take precedence over the loudest voices, and you will have the resources, autonomy, and trust to not only redefine the future of commerce but to shape your own journey.Your ImpactAs a Principal Engineer in Product Security, you will play a pivotal role in supporting the Engineering team by addressing complex technical challenges and facilitating a 'shift left' approach to building secure services on a multi-cloud infrastructure.

Join our dynamic team at peec as a Senior Backend Engineer, where you will play a crucial role in building and scaling our backend systems. Your responsibilities will include overseeing complex backend architecture, ensuring reliable delivery of high-quality systems, and collaborating with cross-functional teams to create innovative solutions.Key ResponsibilitiesTake ownership of complex backend systems from scoping to architecture and delivery.Design and develop robust, scalable APIs and distributed systems that enhance product performance.Collaborate with Product, Frontend, and Design teams to implement well-structured backend solutions.Drive innovation in backend technologies, enhancing both architecture and developer experience.Support the evolution of our backend infrastructure and developer tools for rapid scaling.Identify and implement improvements for system performance, reliability, and developer experience.

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.

About commercetools At commercetools, we believe that true innovation thrives on a robust foundation, where the synergy between our cutting-edge product and our talented people drives success. Our team consists of builders, explorers, doers, creators, and problem-solvers—individuals who have not only pioneered composable commerce but also cultivated a culture of experimentation that propels us forward. Together, we are the driving force behind commerce innovation today. We empower the next generation of commerce for our clients, delivering AI-powered solutions that enable enterprises to make informed decisions, seamlessly integrate digital and physical shopping experiences, and forge new connections between industries and their customers. We support the world's most ambitious companies, enabling them to experiment, scale, and grow without boundaries. At commercetools, the best idea triumphs over the loudest voice. You will be equipped with the tools, trust, and autonomy necessary not just to shape the future of commerce, but to carve your own path as well. The Opportunity We are on the lookout for a Senior Technical Product Marketing Manager to spearhead the positioning, messaging, and go-to-market strategy for the commercetools Platform, which serves as the technical backbone of our offerings, alongside complementary products like the Payment Hub and AI Hub, as well as ecosystem enablers such as Agent Gateway and various integrations. This position necessitates a deep, hands-on understanding of modern AI platforms and architectures. You will collaborate closely with Product and Engineering teams on AI-driven capabilities, including large language models (LLMs), agentic systems, model orchestration, and AI platform integrations. Success in this role hinges on your ability to comprehend these systems at a technical level, not just market them. Your role will involve defining and articulating the value of our connected commerce ecosystem, empowering customers, partners, and developers to innovate more rapidly and intelligently. You will creatively convey complex technical concepts to a diverse audience with varying levels of technical expertise, utilize data and research to devise impactful positioning and messaging, and tap into internal knowledge resources to gain a thorough understanding of our product offerings. You will narrate complex technical concepts—ranging from composable architecture to next-generation agentic commerce—into engaging stories that inspire market adoption and differentiation. By closely collaborating with Product, Engineering, and GTM leadership, you will shape how we bring innovation to life across our portfolio.

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

About the Role airapps is looking for a Backend Engineer to help shape backend systems for our applications. This position is based in the Berlin Metropolitan Area. What You Will Do Design and build backend systems that support our products Focus on scalability and performance throughout development Location Berlin Metropolitan Area

About the CompanyAt Affinidi, we are revolutionizing data ownership to empower individuals and businesses. Our technology enables users to take control of their digital identity, ensuring privacy and security while managing their complete digital footprint.We are committed to fostering a trusted ecosystem for decentralized digital identity solutions, allowing seamless data exchange across industries and borders.About the Role:We are looking for a Senior Backend Engineer with expertise in Rust. The ideal candidate will be solution-oriented and possess a strong track record in backend development. You will play a crucial role in our mission to create innovative solutions that enhance data ownership and privacy.

Join finanzcheck, the premier online loan comparison platform in Germany, and be part of shaping the future of the credit market. Our commitment to excellence has earned us the prestigious Kununu Top Employer Award in 2022. Become part of our success story today! At finanzcheck, our development teams are strategically aligned along the customer journey, fully responsible for their respective areas of the platform and related services. Operating autonomously and self-managed, we champion effective network structures that empower teams to make informed decisions throughout our exciting roadmap, fostering shared responsibility and collaboration among all members. YOUR NEW TEAM We are on the lookout for a Senior Full Stack Engineer to join our Customer Communication team. Our mission is to facilitate optimal loan application processes by creating an innovative omni-channel communication landscape. We build services that ensure timely and meaningful interactions with our customers through various channels, including email, SMS, RCS, WhatsApp, and our fully automated dialer for inbound and outbound calls, which serves as a core service for our loan advisors. Additionally, we continuously enhance the customer experience through data-driven experiments and a sophisticated self-built optimization framework. WHAT YOU WILL BE DOING Develop and maintain a data-intensive distributed environment utilizing Node.js and TypeScript services hosted on AWS Lambda and Kubernetes. Ensure the stability and reliability of customer communication services through efficient traffic management and monitoring. Conceptualize, develop new features, and optimize existing systems to enhance business-critical performance and efficiency. Proactively propose ideas for integrating artificial intelligence to improve our systems and processes. Engage actively in team decision-making regarding objectives, concepts, timelines, and technology stack. Collaborate closely with the Product Owner to plan and continuously evolve new features within the team’s domain. Take end-to-end ownership of development and operations, adhering to our principle of “you build it, you run it, you own it,” which encompasses DevOps responsibilities. YOUR PROFILE Proven experience with Node.js and TypeScript. ...

About the CompanyAffinidi is a pioneering technology firm committed to revolutionizing data ownership. We empower both businesses and individuals to take control of their data, offering a holistic approach to managing their digital identities while prioritizing privacy and security.Our innovative technology facilitates decentralized digital identity solutions, ensuring that everyone has the right to own and manage their data. We are dedicated to building a trusted ecosystem for digital credentials that enables secure data and service exchanges across various sectors and borders.About the Role:We are looking for a Senior Backend Engineer (Rust) who is solution-oriented and possesses proven experience in backend development using Rust. You will be responsible for designing, implementing, and maintaining robust backend systems that align with our vision of secure, decentralized data management.

Role overview Taktile creates technology that enables banks and fintechs to automate critical decisions, such as credit and risk assessments, in real time. As a Senior Backend Engineer on Team Atlas, the main focus is on developing and maintaining the data infrastructure that powers Taktile’s feature computation platform. This position holds responsibility for the full lifecycle of core backend systems, from initial design through deployment, and plays a key role in shaping the direction of the product. What you will do Design, build, and maintain backend services using Python on AWS, including Lambda functions, DynamoDB, Aurora, and event-driven pipelines that support live production workloads. AI tools are part of the regular workflow. Address complex technical challenges related to latency, reliability, and scalability in backend systems. Take ownership of systems end to end: architecture, implementation, deployment, monitoring, and incident response are all part of the role. Influence architectural decisions and help determine how systems are built, not just what gets built. Contribute to team growth by conducting code reviews, mentoring peers, and improving development tools and processes. Collaborate closely with Product and Design teams to help define new features and guide product direction. Location This role is based at Taktile’s office in Berlin.

Have you ever dreamed of being part of a revolutionary change in urban mobility? At Vay, we are redefining transportation by offering a unique service where customers can summon a car at the touch of a button—without a driver inside—thanks to our pioneering Remote Driving technology operating on real public roads.Already operational in Las Vegas, we are rapidly expanding, fueled by a strategic investment of up to $410 million from Grab. Our mission is straightforward: to transform private car ownership into a faster, cleaner, and more convenient door-to-door mobility solution. If you aspire to create something tangible and transformative, you will find a welcoming home here.Want to experience Vay firsthand? Use the code VAYCANDIDATE for $10 off your first trip in Las Vegas! Download the "Vay" app from the Apple or Google Play store and get started!What’s happening at VayWe are the first company to deploy vehicles on public roads in both Europe and the USA without a human driver and currently have the second-largest commercial driverless car fleet in the Western World.We have partnered with Kodiak to integrate our remote-driving technology into autonomous trucks in the US, demonstrating our capacity to adapt our technology for heavy-duty commercial vehicles and broaden its applications across the US.Having completed tens of thousands of trips, we are scaling our Las Vegas fleet to meet growing demand!...And soon, we will be expanding across the US and Europe

Your MissionJoin our dynamic Engineering team as a Senior Full Stack Developer, where you will not only craft code but also tackle intricate challenges and take ownership of features from inception to deployment. Your contributions will directly influence a product that empowers thousands of construction professionals to shape the world around us.In your initial months, you will:Create and implement innovative AI features, including our newly launched AI agent for editing Bill of Quantities (BoQs) and automated AI bidder recommendations.Work collaboratively with product managers and designers to refine the user experience and set the technical direction of our core offerings.Design and construct modular packages and services within our monorepo to enhance the structure and maintainability of our codebase.Our Engineering CultureAt cosuno, we cultivate a calm, collaborative, and productive engineering atmosphere. We empower our engineers with the autonomy to excel in their work. Our development philosophy includes:Agile & Fast-Paced: We practice trunk-based development and implement daily releases to deliver value quickly to our users.Quality by Default: A thorough Cypress end-to-end testing suite and strict adherence to typing, linting, and formatting standards ensure our codebase remains clean and maintainable.DevOps Mindset: Our efficient CI/CD pipeline deploys to AWS using Kubernetes, with infrastructure managed as code via Terraform.Collaboration & Transparency: We prioritize open dialogue, constructive code reviews, and a culture where the best idea prevails, regardless of its source.Your ProfileWe seek a passionate and experienced engineer eager to build exceptional products. You will thrive in this role if you possess:Extensive professional experience in developing, deploying, and maintaining complex web applications using TypeScript.In-depth knowledge of Node.js for backend development and strong proficiency in React for frontend tasks.A practical problem-solving mindset with a high sense of ownership, comfortable driving projects independently.Experience in collaborative, agile product teams.Excellent communication skills in English.Bonus Points For:Experience with cloud services, DevOps practices, or machine learning frameworks.

Cresta is dedicated to transforming every customer interaction into a strategic advantage by harnessing the full potential of contact centers. Our innovative platform merges cutting-edge AI with human expertise, enabling contact centers to uncover valuable customer insights, streamline conversations and processes, and empower team members to operate more efficiently. Founded by Sebastian Thrun, a visionary from the Stanford AI lab and the mastermind behind Google X, Waymo, and Udacity, our leadership team includes CEO Ping Wu, co-founder of Google Contact Center AI, alongside Tim Shi, an early member of OpenAI. We have gathered a stellar team of AI and machine learning specialists, market leaders, and esteemed investors such as Andreessen Horowitz, Greylock Partners, and Sequoia, along with former AT&T CEO John Donovan. Our esteemed clientele features renowned brands like Intuit, Cox Communications, Hilton, and Carmax, and we have been honored by Forbes and Bain Consulting as one of the premier private AI companies globally. Embark on an exhilarating journey with us as we revolutionize the contact center workforce through AI. The future of work is here, and it begins at Cresta!

At 8returns, we are revolutionizing the e-commerce landscape by addressing the challenges associated with returns—an aspect that can often be frustrating, environmentally harmful, and expensive.We are trusted by some of the fastest-growing direct-to-consumer brands, including OACE, PEGADOR, and GOT BAG, and have gained recognition from iconic brands like Fielmann, Tommy Hilfiger, and Reebok. Our mission is to innovate the post-purchase experience.As a Senior Backend Software Engineer, you will take ownership of key systems that enhance the speed, reliability, and scalability of our product. From APIs to data models and integrations, you will help transform the chaos of returns into effective margin protection. If you have a passion for clean architecture, love deploying new features, and seek true ownership of your work, then this role is tailored for you.

Join us at smava, a leading online credit comparison platform dedicated to making loans transparent, fair, and affordable. With a community of over 300,000 satisfied customers, we're proud to stand among Germany's foremost FinTech companies. Be part of our mission to revolutionize the consumer loan market and shape its digital future!Our engineering teams enjoy a high degree of autonomy and are responsible for their specific areas within the platform, including associated services and systems. We prioritize collaboration, ensuring clear technical contracts and common standards for seamless interactions, while fostering a culture of open dialogue and joint decision-making. This approach empowers us to execute our ambitious and exciting roadmap successfully.YOUR NEW TEAMWe are seeking a passionate Senior Software Engineer to join our Offers and Checkout team. Our mission is to empower loan customers with intuitive and transparent digital services that are trustworthy and self-serve. We aim to provide a smooth journey from loan selection to checkout, ensuring our customers feel confident and in control throughout the process. Our cross-functional team includes Frontend, Full Stack, Backend, QA, and Design roles, working in close collaboration with our Product Owner and various stakeholders.WHAT YOU WILL BE DOINGOwn and deliver complex end-to-end features across the Offers, Checkout, and Customer Area domains utilizing React and TypeScript for the frontend and Node.js (TypeScript) for the backend.Drive Automation and AI-driven UX development, leveraging your expertise to identify, test, and implement AI solutions that enhance our development speed and testing quality.Build and maintain stable, scalable services in a data-intensive, distributed AWS environment using Kubernetes, AWS Lambda, and event-driven architectures.Collaborate closely with Product Owners and UX Designers to create high-conversion customer journeys, ensuring a seamless and trustworthy self-serve experience.Uphold high engineering standards regarding code quality, performance, and security, actively participating in technical decision-making (stack, tools, architecture) within the team.Embrace the philosophy of "you build it, you run it, you own it".

Please note that this position is based in Berlin, Germany — relocation support is provided if required.THE BEST WORK OF YOUR CAREERTrade Republic is Europe’s leading savings platform, operating in 18 countries and trusted by over 10 million customers with more than €150 billion in assets. Our mission is to empower everyone to build wealth by providing easy, safe, and free access to financial systems.Join us and take your career to new heights while working alongside a team of exceptional talent and cutting-edge technology to create a positive impact for millions.WHAT YOU’LL BE DOINGDevelop and test services and products using advanced tools from the JVM ecosystem, including Kotlin, Spring, Vert.x, Hibernate, or jOOQ.Design cloud services with a focus on high availability, low latency, and scalability on AWS.Implement automated software delivery utilizing GitHub Actions, container-based CI/CD pipelines, and Kubernetes orchestration.WHAT WE'RE LOOKING FORA minimum of 5 years of experience in software engineering, particularly within the JVM ecosystem.Proven experience in developing and deploying scalable features in a service-oriented architecture.A strong commitment to delivering reliable, maintainable software through iterative development and continuous delivery.Experience building platform services that support product development (prior experience in platform-focused teams is an advantage).WHY YOU SHOULD APPLY NOWOur culture values ownership, excellence, and high energy. We are dedicated to closing the pension gap and democratizing wealth in Europe. If this resonates with you, we encourage you to apply!We believe that the diverse identities and backgrounds of our team make us more innovative and effective. We are committed to fostering an inclusive environment where everyone feels respected and has equal opportunities to thrive in their careers. For any inquiries about diversity and inclusion during the interview process, please contact your recruitment partner.