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(Senior) Full-Stack Engineer (TypeScript + Kotlin/Java) - Client Alliance (m/f/x)

Scalable GmbH

We are looking for Full-Stack Engineers to join our engineering team. In this role, you will build and scale high-impact systems across our digital product landscape spanning client-facing web applications, workflow automation, and the internal platforms that power our core operations. Whether you are designing seamless user journeys or architecting robust backend microservices in a regulated environment, you will play a key role in delivering high-quality software and solid technical foundations. We look for engineers with strong product mindsets who know how to strike the right balance: moving fast to deliver immediate business value while building reusable, scalable architecture for the long term. Additionally, AI is central to how we work , you will work hands-on with modern AI tooling to build intelligent features into our products and internal engineering workflows.

About Scalable GmbH

  • Be 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 customers
  • Work with an international, diverse, inclusive, and ever-growing team that loves creating the best products for our clients
  • Founded in 2014, Scalable Capital now employs over 700 people across Munich, Berlin, Vienna, Milan, and London.
  • Together with the founding and management team, including 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.
  • Values guide us every day in how we work and collaborate.
  • To learn more about them, you can find our values here (English).

Responsibilities

  • Build and maintain high-quality client-facing applications, internal tools, APIs, and microservices across our stack.
  • Work seamlessly across modern frontend interfaces, backend services, asynchronous queues, and cloud infrastructure.
  • Partner closely with Product, Operations, Design, and Data teams to streamline complex workflows and build scalable software solutions.
  • Write clean, testable, maintainable code with a strong emphasis on security, data privacy, and operational reliability in a regulated environment.
  • Contribute to architectural improvements, testing, observability, and developer experience.
  • Depending on your experience, you will also have opportunities to shape technical direction, mentor peers, and elevate engineering standards across the team.

Requirements

  • Education & Experience: Degree in Computer Science, Software Engineering, or a related field or comparable practical industry experience building production-grade software.
  • Strong hands-on experience with TypeScript , modern frontend frameworks ( React, Next.js ), and backend frameworks ( Node.js, NestJS ).
  • Practical experience with Kotlin (or Java ) and building and operating production backend services (APIs, databases, serverless/lambdas).
  • Good understanding of REST APIs, GraphQL, authentication/authorization patterns (e.g., JWT), and service-to-service integrations.
  • Working knowledge of modern cloud infrastructure and tooling, such as AWS , Docker, Git, CI/CD, and production observability/debugging.
  • Strong analytical thinking with the ability to make pragmatic engineering and product trade-offs while taking ownership from idea to production.
  • Clear, open, and concise communication skills, with professional fluency in English.

Preferred

  • (Experience in these areas is a plus, but not required to apply!) Experience with distributed systems, event-driven architectures, queues, or asynchronous workflows.
  • Familiarity with additional backend languages (e.g., Python).
  • Background building software in regulated, high-security, or operationally critical environments.
  • Hands-on experience or a strong interest in building modern AI-powered features and integrations.
  • German culture first hand by joining our free
  • German language classes

International relocation support is provided if required

  • Scalable Capital is a leading digital investment and banking platform with a full banking licence, empowering people across Europe to shape their own finances.
  • Scalable Broker makes it easy and affordable for clients to invest professionally in stocks, ETFs, cryptocurrencies, and derivatives, as well as set up savings plans.
  • Scalable Wealth, the digital wealth management service, offers clients professional investment in ETF portfolios, and is also adopted as a white-label solution by banks and other B2B partners.
  • The company’s offerings are rounded off by attractive interest rates, loans, and private equity.
  • With the European Investor Exchange, Scalable Capital offers an exchange specifically for retail investors.
  • Over one million clients have already entrusted more than €50 billion to the platform.

Benefits

  • Be productive with the latest hardware and tools
  • Learn and grow by joining our in-house knowledge sharing or career development sessions and spending your individual
  • Education Budget Learn and experience

Opportunity to work from abroad

  • Benefit from an attractive compensation package and from the company pension scheme
  • Monthly contribution of 50% for the ‘Deutschland Jobticket’ Say goodbye to order commissions and say hello to your complimentary subscription of Scalable Capital's PRIME+ Broker Enjoy flexible and discounted sports activities with Urban Sports Club