# Senior Backend Kotlin / Java Software Engineer - Client Technology (m/f/x) at Scalable GmbH

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> Responsibilities: - Design, implement, and operate secure, r

- **Company:** Scalable GmbH (https://jobs.trythestack.co/companies/scalable-gmbh)
- **Location:** München, Germany
- **Work arrangement:** Hybrid
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Kotlin, Java, Spring, REST APIs, GraphQL, JWT, Docker, Git, Microservices, AWS, SQL, NoSQL, DevOps, Software engineering, System design
- **Posted by employer:** 2026-08-19
- **Added to The Stack:** 2026-08-20
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://jobs.smartrecruiters.com/ScalableGmbH/744000144300694-senior-backend-kotlin-java-software-engineer-client-technology-m-f-x- (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-backend-kotlin-java-software-engineer-client-technology-mfx-scalable-gmbh

## About the role

Responsibilities:
- Design, implement, and operate secure, reliable, and scalable backend services using Kotlin/Java and cloud-native patterns.
- Build and maintain client-facing systems across authentication, onboarding, consent, engagement, and support tooling.
- Develop REST/GraphQL APIs, ensure strong test coverage, and follow best practices for maintainability and observability.
- Collaborate with product, frontend, and platform teams to deliver features end-to-end and participate in architecture decisions.
- Run services in AWS using modern DevOps practices (CI/CD, Docker, monitoring, incident response) and optimize performance.

Requirements:
- Strong professional experience with Kotlin and/or Java and production microservices (5+ years preferred).
- Proven knowledge of REST/GraphQL APIs, JWT, SQL and NoSQL databases, and cloud services (AWS experience preferred).
- Familiarity with containerization (Docker), Git workflows, automated testing, and DevOps/observability tooling.
- Solid system design, security-aware coding practices, and experience operating services in production.
- Degree in Computer Science or equivalent professional experience.

## Responsibilities

You will design, implement, and operate scalable, secure, and reliable services using Kotlin/Java and modern cloud-native technologies. You will collaborate with cross-functional teams to improve client-facing systems such as authentication, onboarding, and engagement platforms.

## Requirements

The role requires a degree in Computer Science or equivalent experience along with strong professional proficiency in Java and/or Kotlin. Candidates must have hands-on experience with microservices, AWS, and modern software engineering practices including REST APIs and database management.

## FAQ

- **Is this Senior Backend Kotlin / Java Software Engineer - Client Technology (m/f/x) role still open?** It was posted on 2026-08-19. Listings more than 30 days old may no longer be active, so check Scalable GmbH's site before applying.
- **Does Scalable GmbH offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Scalable GmbH's site.
- **Where is this role located?** The listing gives the location as München, Germany. It is marked hybrid.
- **What skills does this role ask for?** The listing names: Kotlin, Java, Spring, REST APIs, GraphQL, JWT, Docker, Git, Microservices, AWS, SQL, NoSQL, DevOps, Software engineering, System design.

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## Notes for agents

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