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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Kotlin / Java Software Engineer - Client Technology - **Company:** Scalable Capital GmbH - **Location:** Berlin, Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Amazon Web Services, User Authentication, Cloud Computing, Databases, DevOps, Spring Framework, NoSQL, JSON Web Token, Salesforce.Com, Software Engineering, SQL Databases, Backend, Kotlin, Information Technology, Graphql, Restful APIs, Docker, Microservices - **Published:** October 6, 2026 - **Apply:** https://www.jobfinder.de/job/senior-backend-kotlin-java-software-engineer-client-technology-m-f-x/ ## About the Role working closely with product and engineering colleagues across different teams in Client Technology. Depending on team fit and business priorities, your focus may vary across areas such as authentication, onboarding, consent flows, client engagement, client support tooling, and public website experiences.In this role, you will:Build and improve secure, reliable, and scalable systems that support the client journey end to endDesign, implement, and operate services in production using Kotlin/Java and modern cloud-native technologiesContribute to authentication, onboarding, consent, engagement, and support-related solutions across Client TechnologyWork with AWS-based infrastructure and modern DevOps practices to deliver and run services effectivelyWrite clean, testable, maintainable, and well-documented code with a strong focus on security and qualityCollaborate closely with engineers, product managers, and other stakeholders to bring meaningful product improvements to productionHelp drive engineering excellence through strong technical ownership, pragmatic problem-solving, and continuous improvementQualificationsWe are looking for engineers who combine strong software engineering fundamentals with a product mindset and a genuine interest in building trusted client experiences.You bring:A degree in Computer Science, Engineering, or a related field, or comparable practical experienceStrong professional experience in software engineering with Java and/or KotlinHands-on experience with Spring, REST APIs, GraphQL, JWT, Docker, and GitExperience building and operating microservices in production environmentsPractical experience with AWS or another major cloud providerSolid understanding of databases, including SQL and ideally NoSQL technologiesA strong focus on writing well-architected, testable, maintainable, and documented codeStrong analytical thinking in both technical and product-related problem solvingClear, open, and concise communication skills, with professional proficiency in EnglishNice to have:Experience with authentication, security, consent management, onboarding, or other client trust-related domainsExperience with GDPR, KYC, or other regulated-process environmentsExposure to Salesforce, client support tooling, or client engagement platformsDevOps experience and confidence working with cloud infrastructure and deployment pipelinesExperience in fintech, banking, or other regulated digital product environmentsAdditional InformationBe part of one of the fastest-growing and most visible Fintech startups in Europe, creating innovative services that have a substantial impact on the lives of our customersWork with an international, diverse, inclusive, and ever-growing team that loves creating the best products for our clientsWork from our centrally located offices in the heart of Munich or Berlin, nestled in lively neighborhoods filled with vibrant restaurants, cozy cafés, and a wide range of convenient amenities Be ## Description Erik Podzuweit and Florian Prucker, they are working on a new generation of financial services.Visit our finance blog or check out our Social Media channels to find out what our Expert Teams have to say. Our Company Values guide us every day in how we work and collaborate. To learn more about them, you can find our values here (English).Job DescriptionJoin our Client Technology Tribe and help us create trusted, seamless, and secure experiences across the entire client journey.Our teams work on products and platforms that support authentication, onboarding, consent management, client engagement, client support enablement, and public web experiences. We also build and maintain systems that ensure secure and compliant processing of client data, while enabling efficient internal operations and high-quality client communication through platforms such as Salesforce.As a (Senior) Kotlin / Java Software Engineer, you will contribute to scalable client-facing and business-critical systems