Senior Backend Engineer – Kotlin/Java | FinTech |

Spain | Fully Remote via EOR

Are you a Backend Engineer looking to work on the modernisation of a growing FinTech platform?

We're partnering with a growing
lending FinTech
building customer-facing financial products at scale. As the platform continues to evolve, they're looking for a
Senior Backend Engineer
to join the team and help build the next generation of their backend services.

Kotlin
is becoming an increasingly important part of the engineering stack, but you don't need to already be a Kotlin expert. They're equally interested in strong
Java engineers
who understand the JVM ecosystem and are keen to move into Kotlin.

This is a hands-on product engineering role where you'll have the opportunity to build new services, contribute to technical decisions and help modernise an existing technology estate.

Being a growing FinTech means engineers have genuine ownership. They're looking for someone who enjoys solving problems, working closely with Product and taking responsibility for what they build rather than simply picking up tickets.





What you'll be doing
- Designing and building
scalable backend services
across a modern financial technology platform.
- Developing new services primarily using
Kotlin
.
- Working across a
cloud-based environment
and helping build reliable, maintainable systems.
- Designing and developing
APIs, services and backend architecture
.
- Contributing to the ongoing
modernisation of the platform
, including moving functionality from legacy technologies into modern JVM-based services.
- Working with existing services, including parts of the platform written in
PHP
.
- Taking ownership of your work from design through to delivery.
- Contributing to
technical decisions, code reviews and engineering best practices
.
- Using and engaging with
AI tooling
as part of modern software engineering workflows.
- Working closely with Software Engineering, Product and other stakeholders in a small,

📌 Back End Developer (España)
🏢 Intro
📍 España