Senior Fullstack Engineer – Fintech Ops & AI

Scalable GmbH; Belgique; Hybride; EUR 90 000 - 120 000; Plein temps

Avantages offerts par ce poste

Relocation support

German language classes

Education budget

Company pension scheme

Deutschland Jobticket subsidy

Work from abroad

Résumé du poste

Scalable Capital is a leading digital investment and banking platform with a full banking licence, empowering people across Europe to shape their own finances. You will join the Client Technology Tribe within Banking Operations to build regulatory monitoring capabilities and case management solutions supporting KYC, AFC and fraud operations.

In this role you will ship high-impact features rapidly while maintaining a strong architectural standard in a regulated environment, and you will leverage

Qualifications

• A university degree in Computer Science, Engineering, or a related field, or comparable practical experience.
• Strong backend experience building and operating production services, lambdas, databases and others.
• Profound practical frontend experience with modern web application development.
• Strong hands-on experience with TypeScript, React, Next.js and NestJS, building polished, production-grade applications across frontend and backend systems.
• Experience with Python, Java and/or Kotlin is a plus.
• Good understanding of REST APIs, GraphQL, authentication and authorisation patterns including JWT, and service-to-service integrations.
• Experience working with distributed systems, asynchronous workflows, queues, or event-driven architectures is a strong plus.
• Good working knowledge of AWS, Docker, Git, CI/CD, and observability/debugging in production.
• Experience delivering complex software with end-to-end ownership, ideally across internal tooling, platforms, or customer-facing products.
• Strong analytical thinking in both technical and product contexts, with the ability to make pragmatic trade-offs.
• Clear, open, and concise communication skills, with professional fluency in English.
• Experience in regulated environments, support tooling, workflow automation, or operationally critical systems.

Responsabilités

• Build and improve high-quality web experiences that allow efficient banking operations for millions of clients across all Scalable product offerings.
• Work across the stack on frontend applications, backend services, APIs, integrations, event-driven workflows, and cloud infrastructure.
• Partner closely with the Operations department to prioritize new features and measure success of releases.
• Contribute to observability, analytics, experimentation where relevant, and operational excellence across support-related systems.
• Write clean, testable, maintainable, and well-documented code while treating security, privacy, and reliability as first-class concerns.
• Take ownership from idea to production, helping the team ship pragmatic solutions without compromising engineering quality.
• Contribute to continuous improvement in architecture, testing, monitoring, and developer experience.
• Help shape technical direction, mentor teammates, and raise the engineering bar within the team.

Connaissances

TypeScript

React

Next.js

NestJS

Python

Java

Kotlin

REST

GraphQL

JWT

AWS

Docker

Git

CI/CD

Observability

Distributed systems

Event-driven

Formation

University degree in Computer Science/Engineering or related field

Description du poste

Scalable Capital is a leading digital investment and banking platform with a full banking licence, empowering people across Europe to shape their own finances. You will join the Client Technology Tribe within Banking Operations to build regulatory monitoring capabilities and case management solutions supporting KYC, AFC and fraud operations.

In this role you will ship high-impact features rapidly while maintaining a strong architectural standard in a regulated environment, and you will leverage