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causaprima logocausaprima logo
Full-time|On-site|Munich

As a Senior Backend / Platform Engineer at causaprima, you will take charge of the foundational platform that empowers our agents. This includes overseeing an event-driven architecture, managing data pipelines, integrating with customer accounting systems, and ensuring the infrastructure is reliable, auditable, and swift.Key ResponsibilitiesEvent Store Manag…

Mar 15, 2026
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Proxima Fusion logo
Full-time|On-site|Munich

WHO WE AREAt Proxima Fusion, we are on a transformative mission to revolutionize sustainable energy. Leveraging the innovative W7-X stellarator and the latest technological advancements, we are paving the way for commercially viable fusion power solutions.Our work in stellarator optimization, driven by state-of-the-art computation and machine learning, is pushing the boundaries of fusion technology. We are unlocking new high-performance design opportunities through high-temperature superconducting magnets.To seize this monumental opportunity, we are assembling a team of exceptionally dedicated and passionate individuals who will unite to drive groundbreaking advancements in technology.WHY JOIN PROXIMA FUSIONEngage in some of the most intricate technological challenges aimed at delivering abundant, safe, and clean energy to the world.Collaborate and learn alongside a remarkable group of accomplished and motivated professionals.Make your most impactful contributions and enjoy the journey of innovation.Demonstrate that great achievements are possible in Europe when the best talent comes together.YOUR IMPACTAt Proxima Fusion, our simulation-first strategy will be anchored by robust software infrastructure and tools. The challenge lies in developing software that facilitates the exploration of the expansive hyper-dimensional space of stellarator designs to maximize feasibility while minimizing costs.The Dev Platform team is constructing the backbone of our highly integrated, simulation-driven approach to stellarator design. Our foundational data, computing, and analysis infrastructure supports research and development across the organization. In this role, you will work closely with fusion experts, engineers, and AI researchers to create infrastructure and influence our software development processes. If you possess strong software skills, a commitment to product quality, and a proactive attitude, this is a unique chance to contribute to a future powered by fusion.WHAT YOU WILL DODesign and develop a platform that empowers simulation, optimization, and stellarator design teams to tackle their challenges and achieve their objectives more efficiently.Lead the Cloud Infrastructure Operations.Oversee general cloud infrastructure management.

Oct 1, 2025
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Jimdo GmbH logo
Full-time|Remote|Germany

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.

Jan 8, 2026
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Andercore logoAndercore logo
Full-time|On-site|Berlin

About the CompanyAndercore is an innovative AI-powered trading platform revolutionizing the industrial supply chain for infrastructure, energy, and construction materials. We connect thoroughly vetted suppliers from Asia, Europe, and the GCC region with local demand through a seamless integrated platform.Our proprietary AI technology digitizes and automates the entire lifecycle of materials trade—covering procurement, pricing, inventory management, logistics, and embedded financing—thus transforming countless manual processes into real-time, orchestrated workflows.Buyers enjoy instant quotes, dependable availability, and predictable delivery via our unified operating system. Suppliers benefit from precise forecasting, effective demand management, and smooth integration into cross-border fulfillment networks. We collaborate with leading brands to execute both dropship and cross-dock fulfillment strategies for large-scale transactions, turning global supply chains into predictable, repeatable, software-driven workflows.Having achieved triple-digit million GMV and operating in six international markets, we are swiftly moving towards profitability. With a diverse team of over 80 members based in Berlin and Asia, we are on a mission to build the world’s first industrial-grade AI operating system for materials—redefining the dynamics of global trade in one of the most critical industries.Backed by top-tier investors and global banking partners, we recently secured a $40 million Series B funding round led by Atomico, Project A, and Invent Capital, supported by institutional backing from Commerzbank and KfW.About the RoleAs a Senior Backend Engineer, you will serve as a technical pillar within our team, expected to lead by example, influence architectural decisions, and elevate the quality of our deliverables. You will work autonomously while remaining deeply embedded in a collaborative engineering culture.Tech Stack: Java 21 (Spring Boot 3), Python, LangGraph, LLM APIs (OpenAI, Anthropic, Gemini), PostgreSQL, Kinesis, AWS, Terraform, GitHub Actions, Node.js, TypeScript, Next.js, React.

Mar 5, 2026
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Coretylynt logoCoretylynt logo
Full-time|On-site|Berlin

About the CompanyThe AI-powered trading platform revolutionizing industrial supply in infrastructure, energy, and construction materials. It seamlessly connects trusted suppliers across Asia, Europe, and the GCC region with local demand through a unified platform.Our proprietary AI technology digitizes and automates the entire lifecycle of materials trade—from procurement and pricing to inventory management, logistics, and integrated financing—eliminating thousands of manual, relationship-dependent processes with real-time orchestration.Buyers receive instant quotes, reliable availability, and predictable delivery through our cohesive operating system. Suppliers enjoy precise forecasting, disciplined demand management, and effortless integration into cross-border fulfillment networks. We partner with prominent brands to facilitate both dropship and cross-dock fulfillment for large-scale transactions, transforming global supply chains into predictable, repeatable, software-like workflows.Supported by top-tier investors and financing partners, we have achieved triple-digit-million GMV, operate across six international markets, and are rapidly moving towards profitability. With a growing team of over 80 individuals based in Berlin (our headquarters) and Asia, we are developing the world’s first industrial-grade AI operating system for materials—redefining the workings of global trade in one of the most substantial and vital industries.

Feb 19, 2026
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Coretylynt logoCoretylynt logo
Full-time|On-site|Berlin

About the CompanyCoretylynt is an innovative AI-powered trade platform revolutionizing industrial supply chains in infrastructure, energy, and construction materials. By linking verified suppliers across Asia, Europe, and the GCC region with local demand through a comprehensive integrated system, we are transforming the way materials are traded.Our proprietary AI technology automates and digitizes the entire lifecycle of materials trade, covering procurement, pricing, inventory management, logistics, and embedded financing. This replaces traditional, manual processes with real-time orchestration, enabling buyers to receive instant quotes, ensure reliable availability, and predict delivery times through a unified operating system.For suppliers, we offer precise forecasting and effective demand management while facilitating seamless integration into cross-border fulfillment networks. We collaborate with leading brands to manage both dropship and cross-dock fulfillment for large transactions, turning global supply chains into systematic, software-like workflows.With backing from top-tier investors, we have achieved substantial growth, operating across six international markets and rapidly moving towards profitability. Our team of over 80 professionals, based in Berlin (our headquarters) and Asia, is dedicated to developing the world’s first industrial-grade AI operating system for materials, fundamentally redefining global trade in one of the most crucial sectors.In the realm of FinTech, precision is paramount. As a Backend Engineer, you will be responsible for the backend infrastructure that underpins payments, financial data handling, reconciliation, and compliance-critical workflows, where accuracy and auditability are essential.Tech Stack: Java 21 (Spring Boot 3), Python, PostgreSQL, AWS, Kinesis, Terraform, GitHub Actions, TypeScript.

Feb 19, 2026
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andercore logoandercore logo
Full-time|On-site|Berlin

About the Companyandercore is a pioneering AI-driven trade platform reshaping the industrial supply chain for critical sectors including infrastructure, energy, and construction materials. By connecting thoroughly vetted suppliers across Asia, Europe, and the GCC region with local demand, our integrated platform streamlines the procurement process.Our proprietary AI technology digitizes and automates the entire materials trade lifecycle — from procurement and pricing to inventory management, logistics, and embedded financing. This innovative approach replaces cumbersome manual processes with real-time orchestration, enhancing efficiency.Buyers experience faster access to quotes, reliable availability, and predictable delivery through our unified operating system. Meanwhile, suppliers benefit from improved forecasting, disciplined demand management, and seamless integration into cross-border fulfillment systems. We collaborate with industry-leading brands to manage both dropship and cross-dock fulfillment operations for high-volume transactions, transforming global supply chains into predictable, software-like workflows.With a robust growth trajectory and triple-digit-million GMV, we are actively expanding our presence across six international markets, moving swiftly toward profitability. Our team of over 80 professionals, based in our Berlin headquarters and Asia, is dedicated to building the world’s first industrial-grade AI operating system for materials, fundamentally altering the landscape of global trade in one of the world's largest and most vital industries.Supported by top-tier investors and global institutional banking partners, we proudly closed a $40 million Series B funding round, with contributions from Atomico, Project A, and Invent Capital, alongside institutional backing from Commerzbank and KfW.In the world of finance, precision is paramount. As a Backend Engineer, you will be integral to the backend infrastructure that manages payments, financial data, reconciliation, and compliance-critical workflows, where accuracy and auditability are essential.Tech Stack: Java 21 (Spring Boot 3), Python, PostgreSQL, AWS, Kinesis, Terraform, GitHub Actions, TypeScript.

Mar 5, 2026
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ClickHouse logoClickHouse logo
Full-time|Remote|Germany (remote)

About ClickHouseRanked among the most innovative firms on the 2025 Forbes Cloud 100 list, ClickHouse is a fast-evolving leader in the private cloud sector. With a rapidly expanding customer base exceeding 3,000 and an annual recurring revenue (ARR) growth exceeding 250% year-over-year, ClickHouse excels in real-time analytics, data warehousing, observability, and AI-driven workloads.The company’s impressive trajectory has been reinforced by a recent $400M Series D funding round. In the last three months, notable clients such as Capital One, Lovable, Decagon, Polymarket, and Airwallex have either adopted or enhanced their use of our platform. These entities join a prestigious roster of AI pioneers and global giants like Meta, Cursor, Sony, and Tesla.We are committed to revolutionizing how organizations leverage data. Join us on this transformative journey!Become a part of our mission to innovate Observability for Developers! We aim to redefine how engineers monitor, debug, and scale their production applications through HyperDX, now a part of ClickHouse. HyperDX is an open-source platform that converts telemetry data into actionable insights. Envision a world where logs, metrics, traces, and session replays integrate effortlessly to identify root causes with unprecedented speed. If you’ve ever been frustrated at 2 AM with tools like Grafana, Datadog, or Elastic for not providing the insights you need, you’ll understand the challenge we’re addressing. Now, you have the opportunity to help us tackle this issue.We are seeking a Senior Backend Engineer to contribute to the development of a petabyte-scale, high-performance observability platform, with a strong emphasis on delivering an exceptional developer experience (the DX in HyperDX).

Apr 2, 2026
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Knowlix logoKnowlix logo
Full-time|On-site|Munich

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.

Jul 22, 2025
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Jimdo GmbH logo
Full-time|Remote|Germany

About JimdoAt Jimdo, we empower self-employed individuals and micro-businesses by simplifying the journey to success. Founded in 2007 by three friends in a farmhouse in Northern Germany, we have evolved into a profitable, remote-first company with over 220 employees from more than 50 nationalities, operating in over 15 countries. With over 36 million websites created, we are more than a website builder; we are an AI-driven platform that supports our users in running and growing their businesses effectively.Our commitment to personalized, data-driven guidance ensures that our platform provides clear insights and actionable steps, allowing our customers to focus on what truly matters for their business growth.Role Overview:As a Senior Backend Engineer for JimdoPay, you will play a crucial role in developing our integrated payment solution designed to support solopreneurs with a comprehensive suite of payment capabilities. You will contribute to key features, including embedded payments, link-to-pay options, and intelligent quoting tools. Collaborating closely with product, design, and engineering teams, you will ensure the delivery of secure and scalable backend services leveraging top Payment Service Providers (PSPs).Your Impact:Develop REST APIs using Kotlin or Java with a strong focus on scalability, reliability, and performance.Implement secure and efficient integrations with payment APIs.Design and develop RESTful services and event-driven architectures.Manage data storage effectively using relational databases.Contribute to CI/CD pipelines and automated testing processes.Work collaboratively across teams to deliver comprehensive solutions.What You Bring:Over 6 years of experience in backend software development.Strong expertise in Kotlin or Java.Proven skills in REST API design.In-depth experience with relational databases.Familiarity with CI/CD practices and testing automation.Excellent collaboration skills for cross-functional teamwork.

Jan 5, 2026
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Talon.One logoTalon.One logo
Full-time|On-site|Berlin

ABOUT TALON.ONE:Talon.One is a cutting-edge incentives engine that seamlessly integrates loyalty, promotions, and gamification into a singular, comprehensive platform. With a robust foundation of enterprise-grade security and scalability, Talon.One enables businesses to craft personalized and profitable promotions and loyalty initiatives utilizing any data available.Currently, over 250 of the world’s most beloved brands, including Adidas, Sephora, and Carlsberg, collaborate with Talon.One to foster deeper engagement and enduring loyalty among their customers.ABOUT THE TEAM:The R&D team at Talon.One comprises a diverse group of engineers, product innovators, and designers dedicated to building and scaling the systems that power Talon.One’s platform. Each team operates with autonomy, shared accountability, and a strong sense of ownership, focusing on enhancing our ecosystem.Within R&D, the Platform Tribe is pivotal in empowering product teams to deliver value both safely and efficiently. We are committed to developing and refining shared capabilities, including our Internal Developer Platform, CI/CD workflows, cloud foundations, and operational tools. Our mission is to minimize friction, establish clear guardrails, and provide engineers with a streamlined path from concept to production.We cherish curiosity, practical problem-solving, and open collaboration. Teams gain visibility into systems from end to end, and we actively promote mentoring, documentation, and knowledge sharing. Talon.One is dedicated to fostering an inclusive environment where diverse perspectives contribute to superior systems and decisions.Located in Berlin, we welcome professionals already residing here or those eager to relocate.ABOUT THE ROLE:We are in search of a Senior Platform Engineer to elevate our Internal Developer Platform and shared tooling to the next level. With a solid foundation already established, including Backstage as our IDP, we are now keen on building meaningful capabilities that provide significant value to both our business and engineering teams.This role requires a blend of technical leadership and strong product insight. As there is no dedicated product manager for the platform, you will collaborate closely with engineering managers, technical leads, and engineers to understand their challenges, identify opportunities, and drive initiatives from concept through to production. You will lead platform projects from start to finish: defining the problem, designing solutions, implementing them, and ensuring their adoption and ongoing maintenance.Additionally, you will work in close partnership with infrastructure, SRE, and product engineers, balancing long-term planning with immediate needs, and ensuring that our systems remain reliable and scalable.

Mar 12, 2026
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Taktile logoTaktile logo
Full-time|Hybrid|Berlin Office

Role overview Taktile supports banks and fintech companies by automating key decisions such as credit checks and risk assessments. The Senior Backend Engineer on Team Decide focuses on building and improving the distributed execution engine that drives customer workflows. This engine forms the foundation of Taktile’s automated decision-making platform. What you will do Design and implement backend systems for distributed workflow execution Take ownership of critical systems throughout their lifecycle, from architecture to deployment Collaborate with a small, dedicated team where each engineer’s perspective directly influences the product Address complex backend problems specific to automated decision-making in financial technology Location This role is based in Taktile’s Berlin office.

Apr 24, 2026
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Qualifyze GmbH logoQualifyze GmbH logo
Full-time|Remote|Remote job

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.

Oct 2, 2025
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zenjob logozenjob logo
Full-time|On-site|Berlin

Zenjob connects businesses with temporary workers through a staffing platform that relies on AI-driven technology. Since launching in 2015, Zenjob has helped over 40,000 students find flexible work and has built partnerships with more than 1,000 companies in logistics, retail, and hospitality across Germany’s major cities. The company’s mission centers on making flexible work accessible and efficient by building dependable technology. Role overview The Senior Platform Engineer will join the Platform & Infrastructure team in Berlin. This role focuses on strengthening the systems and tools that support Zenjob’s engineering teams. Key areas of work include optimizing AWS infrastructure, managing Kubernetes clusters, and improving CI/CD pipelines with GitHub Actions. The team is also responsible for observability using Grafana, Prometheus, Datadog, and Incident.io, as well as exploring AI platform solutions such as n8n, LiteLLM, and Retool. Maintaining and improving the in-house CLI, developed in Go, is another important aspect of this position. What you will do Guide technical decisions and provide architectural input for platform infrastructure. Work closely with engineers across teams, including Data Platform and Platform Enablement, to deliver improvements for the broader engineering organization. Optimize cloud infrastructure on AWS, manage Kubernetes, and enhance CI/CD processes using GitHub Actions. Maintain and extend observability tools such as Grafana, Prometheus, Datadog, and Incident.io. Integrate and support AI platform solutions, including n8n, LiteLLM, and Retool. Contribute to the development and maintenance of the Go-based in-house CLI used by engineering teams. Requirements Experience treating infrastructure as a product, with a strong preference for Terraform. Ability to act as a trusted resource for engineers seeking solutions to platform challenges. Comfort working collaboratively and providing technical direction. Location This role is based in Berlin.

Apr 27, 2026
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Databricks logoDatabricks logo
Full-time|On-site|Berlin, Germany

P-1327 At Databricks, we are driven by a passion for empowering data teams to tackle some of the world’s most complex challenges. From revolutionizing transportation methods to speeding up medical innovations, our mission is to build and operate the leading data and AI infrastructure platform, enabling our customers to leverage profound data insights to enhance their business. Established by engineers, Databricks is embarking on an ambitious journey to develop the most advanced Lakehouse Platform. While we have a solid foundation, we aim to elevate our offerings to create significantly improved products. Our goal is to reimagine every component to provide our customers with the fastest, most user-friendly, and secure data platform for all their data workloads. As a Senior Software Engineer, you will be a key member of our Berlin site and play a pivotal role in our multi-year mission to realize our Lakehouse vision. You will engage in the entire development lifecycle and embody the core values of Databricks. The impact you will have: Our backend teams operate across various domains within our essential service platforms. You may encounter challenges such as: Addressing issues that encompass product development and infrastructure, including distributed systems, scalable service architecture, monitoring, workflow orchestration, and enhancing developer experience. Creating reliable, secure, and high-performance services and client libraries for managing and accessing massive amounts of data on cloud storage solutions, such as AWS S3, GCS, and Azure Blob Store. Developing product features that empower our customers to efficiently store and access their data.

Jan 30, 2026
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SumUp logoSumUp logo
Full-time|On-site|Cologne, Germany

About the Team Join the Sell Online Tribe at SumUp, where we are transforming how merchants establish their online presence. Our team designs and builds solutions that empower millions of entrepreneurs—from barbers to bakers—to sell their products and services from anywhere. With a focus on Online Store and Bookings, our products form the backbone of SumUp’s ecosystem, enabling merchants to manage appointments, showcase offerings, and process payments seamlessly from their mobile devices. We are a dynamic, cross-functional team of Product Managers, Designers, and Engineers dedicated to creating exceptional mobile experiences. As part of our team, you’ll play a vital role in expanding into new industries, bridging the gap between web and mobile platforms, and simplifying digital commerce for small businesses globally. About the Role As a Senior Backend Engineer within the Bifrost team, you will be instrumental in the development of SumUp's key merchant-facing online products. You will contribute to the growth and scalability of pivotal products such as Payment Links, Virtual Terminal, and Unified Gift Cards, while also enhancing integration products that deliver essential functionalities across various SumUp services. We seek a developer who champions reliability, collaboration, and continuous improvement. You will thrive in a high-impact environment where your contributions directly enhance merchant success and team scalability. Your Responsibilities Ensure redundancy for the scalability and continuous enhancement of SumUp’s high-priority online products. Contribute to the implementation, growth, and integration of Online Checkouts across SumUp. Engage actively in planning and review sessions at both quarterly and sprint levels, providing constructive feedback and accurate estimations. Monitor existing services and perform necessary fixes to maintain platform reliability. Implement new features with maintainable and testable code. Optimize application performance for improved scalability. Participate in code reviews to uphold high standards of code quality. You Will Excel in This Role If: You possess over 5 years of experience in backend engineering, specifically with Golang. You demonstrate a strong grasp of fundamental system architecture, design principles, data modeling, and API design. You have substantial experience with distributed and fault-tolerant systems. You are passionate about continuous learning and improvement.

Feb 19, 2026
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GetYourGuide logoGetYourGuide logo
Full-time|On-site|Berlin

About GetYourGuideGetYourGuide stands as the world's leading marketplace for unforgettable travel experiences. Travelers utilize our platform to uncover the best activities in their chosen destination. Since our inception in 2009, over 150 million tours, activities, and attraction tickets have been booked through GetYourGuide by adventurers from around the globe. With a dedicated global team of more than 800 travel experts and technologists, we are proudly headquartered in Berlin, complemented by 17 local offices worldwide.The Mission:At GetYourGuide, technology is the driving force behind our growth. Our work within the Marketplace is transforming global travel experiences, and we invite you to join us in this endeavor.The features we develop facilitate seamless bookings for our customers while empowering our partners to expand their businesses. This complex task presents a remarkable opportunity to create extraordinary solutions that impact global travel. From building supplier infrastructures that enhance our partners' businesses to innovating marketplace features that propel our growth, you will have the chance to craft incredible solutions at GetYourGuide.Whether you're engaged in developing dynamic search algorithms or designing new features to accelerate our company's growth, your contributions will leave a lasting impact. Our teams consistently push boundaries, exploring innovative ways to bring the magic of travel to people around the world.We operate in cross-functional mission teams composed of backend and full-stack engineers, mobile engineers, data engineers, product managers, and designers.

Feb 18, 2026
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Delivery Hero SE logoDelivery Hero SE logo
Full-time|On-site|Berlin

Role overview Delivery Hero SE seeks a Senior Backend Engineer to join its AdTech team in Berlin. The focus is on developing and maintaining backend systems that power advertising technology products and services. What you will do Design and build scalable backend systems tailored for AdTech applications. Collaborate with engineers, product managers, and cross-functional teams to deliver features that enhance performance and user engagement. Create solutions that adapt to evolving customer and business requirements. Location This position is based in Berlin.

Apr 28, 2026
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SumUp logoSumUp logo
Full-time|On-site|Berlin, Germany

Join our Global Bank tribe at SumUp, where we are revolutionizing the infrastructure for merchants by providing them with a digital business account that simplifies their banking needs. Our mission is to become the top banking partner for small merchants worldwide, delivering a seamless, straightforward, and cost-effective experience. As a valued member of our team, you will be instrumental in transitioning from a fragmented regional setup to a cohesive global infrastructure, thereby enabling millions of merchants to enjoy tailored banking solutions. In the role of Senior Backend Engineer on the Global Accounts team, you will take ownership of vital components of our bank account platform. You will be involved in the design and development of a fully distributed, event-driven system built for scalability, resilience, and compliance. Your primary development language will be Kotlin, with opportunities to work with Elixir and Golang. We embrace Extreme Programming methodologies: frequent iterations, daily releases, and a strong emphasis on technical excellence and deep problem-solving. Our tech stack includes Kotlin, Golang, Elixir, Java, AWS, Kafka, PostgreSQL, and Kubernetes, complemented by observability tools such as Prometheus, Grafana, and Honeycomb. We also leverage AI-assisted development tools like Cursor and GitHub Copilot.

Feb 19, 2026
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Talon.One logoTalon.One logo
Full-time|On-site|Berlin

ABOUT TALON.ONE:Talon.One serves as a cutting-edge incentives engine that integrates loyalty programs, promotions, and gamification into a unified platform. With robust enterprise-grade security and scalability, Talon.One enables businesses to create customized, profitable promotions and loyalty initiatives leveraging any data.We proudly partner with over 250 globally recognized brands, including Adidas, Sephora, and Carlsberg, to enhance customer engagement and foster long-term loyalty.ABOUT THE TEAM:Our development team is composed of experts in frontend, backend, QA, product management, and visual design. We operate in small, cross-functional squads that provide insights into each team member's role, fostering collaboration and hands-on experience. Each squad is self-sufficient, autonomous, and accountable for specific features or areas within our platform. We prioritize collaboration, transparent communication, and mentorship to promote mutual growth. Talon.One is dedicated to creating an inclusive work environment, as we believe it positively impacts the entire tech industry.We are on the lookout for a Senior Backend Engineer to enhance our development teams. In this role, you will work closely with our product team to devise effective solutions for complex challenges while mentoring and supporting fellow team members.

Feb 9, 2026

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