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

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.

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.

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 Description

About the Role

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.

 

Your Responsibilities

• End-to-End Delivery: Build and maintain high-quality client-facing applications, internal tools, APIs, and microservices across our stack.

• Full Stack Architecture: Work seamlessly across modern frontend interfaces, backend services, asynchronous queues, and cloud infrastructure.

• Cross-Functional Collaboration: Partner closely with Product, Operations, Design, and Data teams to streamline complex workflows and build scalable software solutions.

• Engineering Excellence: Write clean, testable, maintainable code with a strong emphasis on security, data privacy, and operational reliability in a regulated environment.

• Continuous Growth: 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.

Qualifications

Core Requirements:

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

 

Nice-to-Haves / Strategic Pluses: (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.

Additional Information

• 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
• 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 German culture first hand by joining our free German language classes
• International relocation support is provided if required 
• 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