Senior Backend Engineer

vor 6 Monaten


Berlin, Deutschland Sumup Vollzeit

Joining our Global Bank Tribe means you'll play a pivotal role in building SumUp's very own digital bank. You’ll be part of a global, autonomous, cross-functional team, with over 32 nationalities across Cologne, Berlin, São Paulo, Santiago, Sofia and Vilnius who love to take ownership, work with purpose, and are building the number 1 bank for small businesses.

Curious to know more about Global Banking Product at SumUp? Check out

As a Senior Backend Engineer (Kotlin) you'll be responsible for facilitating the transition from a localized setup with regional banks to a unified Global Bank.You will have substantial influence on the design of our global platform, ensuring it's optimized for scalability, reliability, and security to meet the needs of our expanding user base. The challenge lies in executing all three tasks—redesigning, introducing new features, and scaling operations—simultaneously. If you're up for this multifaceted challenge, we'd love to hear from you. Apply now and be instrumental in shaping the future of our global banking platform.

What you’ll do

Co-design and develop our global platform by engaging in collaborative efforts with cross-functional teams to optimize scalability, reliability, and security for our global banking platform

Design REST APIs and build highly available event-driven systems. 

Work in a global context with teams in Europe, the US and Latin America

Collaborate with a cross functional team to clarify problems, outline opportunities, prototype solutions, ensure smooth deployment, continuous integration, and support existing functionalities

Actively participate in selection of new tools, technologies and processes, code reviews and pair programming with other software engineers

Become a subject matter expert and actively participate in product discussions to assist your team in delivering business value by making best backend-related decisions

Continuously raise the bar by mentoring fellow backend engineers, drive engineering initiatives, adopt and actualize best practices with the team and foster a strong, collaborative engineering culture that emphasizes continuous learning

You’ll be great for this role if

You have solid experience as a Senior Backend Engineer, proficient in both Java & Kotlin.

You have proven experience in software architecture and application design, with a track record of making architectural decisions and a deep understanding of fundamental system architecture and API design (RESTful and event-driven services).

You have hands-on experience with CI/CD pipelines and version control systems, demonstrating your familiarity with DevOps practices.

You feel comfortable working with SQL databases.

You have a good understanding of modern cloud technologies (AWS, Docker, Kubernetes).

You have experience with monitoring tools such as Prometheus, Grafana.

You have a passion to write clear, concise and testable code that your team can understand, maintain and improve.

Any of the following would be considered a plus

Experience in the fintech industry

Why you should join SumUp

The opportunity to work on large scale fintech products used by millions of small businesses around the world

Work on a high impact squad that is at the core of the Bank Tribe

A dedicated annual Learning & Development budget for attending conferences and/or advancing your career through further education

Enrollment onto our virtual stock ownership program - you will own a stake in SumUp’s future success

You'd enjoy other great location-tailored benefits

You’ll attend global offsites and/or hackathons.

Join a truly global SumUp team of + people from 80+ countries, spread across 4 continents

Job Application Tip

We recognise that candidates feel they need to meet % of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.



  • Berlin, Berlin, Deutschland JET Tankstellen Deutschland GmbH Vollzeit

    Job Title: Senior Software Engineer (Backend)We are seeking a highly skilled Senior Software Engineer (Backend) to join our team.Main Responsibilities:Design and develop high-quality backend software systemsWork closely with cross-functional teams to identify and prioritize project requirementsCollaborate with other engineers to ensure seamless integration...


  • Berlin, Berlin, Deutschland Parcel Shuttle Vollzeit

    About the RoleWe are seeking a skilled Senior Backend Engineer to join our Data Gateway Team at Parcel Shuttle. As a Senior Backend Engineer, you will be responsible for developing and maintaining our data gateway components, ensuring seamless data integration across our cloud-based infrastructure.Key ResponsibilitiesDesign and implement data gateway...


  • Berlin, Deutschland AllRide GmbH Vollzeit

    Location: 100% RemoteAbout Us: We are a lean agile startup dedicated to revolutionizing the mobility landscape with our innovative subscriptionbased mobile app. We are looking for a versatile and experienced Senior Backend Engineer to join our dynamic team. In this role you will play a crucial part in building and maintaining the core functionality of our...


  • Berlin, Deutschland Impala Search Vollzeit

    Senior Backend EngineerLocation: Berlin / Remote within GermanyAre you interested in exploring the true potential of AI in the workforce? Join a VC-backed startup led by a founding team with over a decade of experience in process automation.Our client is building an enterprise automation platform that seamlessly integrates AI agents as active members of the...

  • Senior Backend Engineer

    vor 8 Monaten


    Berlin, Deutschland yoummday Vollzeit

    Senior Backend Engineer (m/w/d) Schwerpunkt SIP Telefonie Permanent employee, Full-time · Berlin About us

  • Senior Backend

    vor 2 Wochen


    Berlin, Deutschland SoundCloud Ltd Vollzeit

    SoundCloud empowers artists and fans to connect and share through music. Founded in 2007, SoundCloud is an artist-first platform empowering artists to build and grow their careers by providing them with the most progressive tools, services, and resources. With over 400+ million tracks from 40+ million artists, the future of music is SoundCloud. We are...


  • Berlin, Berlin, Deutschland Impala Search Vollzeit

    Job Title: Senior Backend EngineerAbout the RoleAt Impala Search, we are seeking a highly skilled Senior Backend Engineer to join our team. In this role, you will be responsible for developing and maintaining our enterprise automation platform, which seamlessly integrates AI agents as active members of the workforce.About the PlatformOur platform takes a...


  • Berlin, Berlin, Deutschland SAP Leanix Vollzeit

    About SAP LeanIXSAP LeanIX is a leading provider of enterprise architecture management (EAM) software, empowering organizations to create transparency and drive business transformation. Our software-as-a-service solutions help companies visualize, assess, and manage their IT landscapes, making sound decisions and collaborating more effectively.Job...

  • Senior Backend Engineer

    vor 6 Monaten


    Berlin, Deutschland Statista Vollzeit

    Join our Team Shape the world of data. Your way . Location Hamburg or Berlin Working Model Full-time Job category Product & IT Senior Backend Engineer (m/f/d) Location Hamburg or Berlin Working Model Full-time Job category Product & IT At Statista, we’re all about facts and data, for we are the world's leading business data platform. By...


  • Berlin, Berlin, Deutschland SVG Assekuranz-Service Berlin und Brandenburg GmbH KRAVAG Filialdirektion Vollzeit

    We are seeking a skilled Senior Software Engineer to join our team. In this role, you will be responsible for the development and maintenance of our backend systems. As a member of our team, you will have the opportunity to work on a variety of projects and contribute to the growth and success of our company.Key ResponsibilitiesDesign, develop, and test...

  • Senior Backend Engineer

    vor 2 Monaten


    Berlin, Berlin, Deutschland Text Cortex AI UG (haftungsbeschränkt) Vollzeit

    About UsWe are Text Cortex AI, a cutting-edge technology company on a mission to revolutionize the digital space. Our vision is to empower businesses to create high-quality content at scale, leveraging the power of AI language generation.Job DescriptionWe are seeking a highly skilled Senior Backend Engineer to join our team. As a key member of our technical...


  • Berlin, Berlin, Deutschland Packmatic Vollzeit

    ​About the RoleAs a Senior Backend Engineer for Data Integrations at Packmatic, you will be responsible for developing scalable and maintainable APIs, backend systems, and workflows to allow customers integrating with our SaaS product. This includes developing and evolving data schemes, managing and optimizing PostgreSQL databases on AWS RDS to ensure...


  • Berlin, Berlin, Deutschland JOIN Vollzeit

    We are a team of innovators at JOIN, a leading HR-Tech startup, on a mission to democratize the recruiting process.About the RoleAs a Senior Backend Engineer at JOIN, you will be part of our dynamic team working on developing robust features for our customers and candidates.Key ResponsibilitiesCollaborate with cross-functional teams to design and implement...


  • Berlin, Berlin, Deutschland tink GmbH Vollzeit

    Job DescriptionAs a Senior Software Engineer at {company}, you will be responsible for designing, developing, and maintaining large-scale software systems. Your primary focus will be on the backend, ensuring that our applications are scalable, efficient, and secure. You will work closely with cross-functional teams to identify and prioritize project...

  • Senior Backend Engineer

    vor 6 Monaten


    Berlin, Deutschland SLAY Vollzeit

    SLAY, founded in December 2022, has swiftly made its mark in the mobile world. In 2023, we developed several apps and games that reached the #1 spot in the App Store across 3 continents. Backed by some of the world's most esteemed investors, including Accel, Scooter Braun, Scott Belsky, and Ilkka Paananen, SLAY is rapidly growing and reaching millions of...

  • Senior Backend Engineer

    vor 6 Monaten


    Berlin, Deutschland SLAY Vollzeit

    SLAY, founded in December 2022, has swiftly made its mark in the mobile world. In 2023, we developed several apps and games that reached the #1 spot in the App Store across 3 continents. Backed by some of the world's most esteemed investors, including Accel, Scooter Braun, Scott Belsky, and Ilkka Paananen, SLAY is rapidly growing and reaching millions of...


  • Berlin, Berlin, Deutschland Packmatic Vollzeit

    We are seeking a highly skilled Backend Engineer to join our team at Packmatic, a leading digital start-up in Berlin. As a Senior Backend Engineer, you will play a key role in shaping our software solutions and driving the company's growth.About PackmaticAt Packmatic, we are rethinking the packaging market by creating innovative solutions to improve its...


  • Berlin, Deutschland GetYourGuide Vollzeit

    Senior Software Engineer, Backend As a Senior Software Engineer (Backend) , you will be working on developing best-in-class software products for our travel marketplace. Currently, we are in a strong growth phase and are working on building world-class travel e-commerce products to help us scale and serve millions of customers. If you are interested...


  • Berlin, Berlin, Deutschland Bloom (Menta Health GmbH) Vollzeit

    {"h1": "Job Description", "p": "At Bloom, we are seeking a skilled Senior Frontend Engineer to join our team. As a key member of our development team, you will be responsible for designing, developing, and deploying robust frontend and backend solutions using React, TypeScript, and Node.js. You will work closely with our remote teams to identify and...

  • Software Engineer

    vor 1 Monat


    Berlin, Berlin, Deutschland JobImpulse GmbH Vollzeit

    At our company, we are looking for a skilled Software Engineer (Backend) to join our development team. The ideal candidate will have experience in designing and implementing scalable and efficient backend systems using Java. Key responsibilities include:Developing and maintaining high-quality, scalable, and secure backend systemsCollaborating with...