Kotlin/Java Backend Engineer – Fintech Payments

Scalable GmbH; Belgique; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Relocation support

German language classes

Education budget

Jobticket subsidy

Prime+ Broker subscription

Urban Sports Club

Job summary

Scalable Capital, a leading fintech, is seeking engineers to develop scalable backend services using Kotlin/Java and Spring Boot. You will design domain models, build distributed event-driven systems, and operate cloud-native workloads on AWS.

You will join autonomous, cross-functional teams, participate in agile practices, and own features from idea to production, delivering reliable, secure software and value to clients across Europe.

Qualifications

• Strong experience building backend services with Kotlin or Java and Spring Boot.
• Solid understanding of Domain-Driven Design and translating complex business processes into clear software models.
• Experience designing and operating distributed, event-driven systems and APIs.
• Familiarity with cloud-native development on AWS, including containerised and serverless workloads.
• Confidence with automated testing, CI/CD, infrastructure as code and production observability.
• Quality and security mindset with focus on reliability and maintainability.
• Clear communication and collaborative problem-solving.
• Interest in complex financial workflows; exposure to SEPA payments is a plus.
• University degree in a relevant field (CS/engineering) or comparable qualification.

Skills

Kotlin/Java

Spring Boot

Domain-Driven Design

Event-driven architecture

AWS cloud

CI/CD / IaC

Automated testing

Team collaboration

Security & reliability

Education

University degree in CS/engineering

Comparable qualification

Tools

AWS ECS

AWS Lambda

Terraform

Job description

Scalable Capital, a leading fintech, is seeking engineers to develop scalable backend services using Kotlin/Java and Spring Boot. You will design domain models, build distributed event-driven systems, and operate cloud-native workloads on AWS.

You will join autonomous, cross-functional teams, participate in agile practices, and own features from idea to production, delivering reliable, secure software and value to clients across Europe.