> Markdown version of [/jobs/ext/1944833-senior-java-kotlin-backend-engineer-banking-apis-hybrid](https://www.wearedevelopers.com/jobs/ext/1944833-senior-java-kotlin-backend-engineer-banking-apis-hybrid). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Java/Kotlin Backend Engineer - Banking Apis, Hybrid

- **Company:** Salmon Group Ltd
- **Location:** Cartagena, Spain
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Java Virtual Machine (JVM), Backend, Kotlin, Restful APIs, Docker
- **Published:** August 6, 2026
- **Apply:** https://www.buscojobs.com.es/senior-java-kotlin-backend-engineer-banking-apis-hybrid-en-cartagena-ID-365738119

## About the Role

A fast-growing fintech company is seeking an experienced Java Engineer ready to switch to Kotlin.
You will design, build, and scale core banking platforms, working on high-load systems and developing robust APIs.
The ideal candidate has 5+ years in the JVM ecosystem, expertise in Kotlin or Java, and knowledge of Docker and Kubernetes.
Join us to influence architecture and work on systems used by millions.

## Description

A fast-growing fintech company is seeking an experienced Java Engineer ready to switch to Kotlin.You will design, build, and scale core banking platforms, working on high-load systems and developing robust APIs.The ideal candidate has 5+ years in the JVM ecosystem, expertise in Kotlin or Java, and knowledge of Docker and Kubernetes.Join us to influence architecture and work on systems used by millions.Remote and hybrid options available.#J-*****-Ljbffr


## Related Videos

- [Moving from Java to Kotlin](https://www.wearedevelopers.com/videos/384-moving-from-java-to-kotlin)
- [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse)
- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered)
- [Why Kotlin is the better Java and how you can start using it](https://www.wearedevelopers.com/videos/661-why-kotlin-is-the-better-java-and-how-you-can-start-using-it)
- [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker)

## Related Articles

- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)
- [Basic And Advanced Networking in Dart and Flutter](https://www.wearedevelopers.com/magazine/112-basic-and-advanced-networking-in-dart-and-flutter)
- [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)