Senior Software Engineer Role (Kotlin)

You’ll join a close-knit engineering function of around 9

engineers , giving you plenty of ownership, visibility and the opportunity to make a meaningful impact on technical decisions and how the platform evolves.

One of the key projects will involve

modernising the existing technology platform and migrating from PHP to Kotlin .

You’ll work closely with engineering and product while remaining firmly

hands-on with development and delivery .

What We're Looking For
Strong commercial experience with

Java or Kotlin
Strong

backend software engineering

experience
Currently hands-on with coding and comfortable working in a highly technical role
Experience with

cloud technologies , ideally AWS
Experience building and maintaining modern, scalable backend applications
Strong communication and collaboration skills
Comfortable working within a smaller engineering team with significant ownership

Particularly Valuable Experience
Experience within

FinTech, banking, payments, lending,



insurance or wider financial services

would be a strong advantage.

We’re also particularly interested in engineers who have worked on:
Legacy modernisation or technology migration projects
Migration into

Java/Kotlin

environments
AWS and cloud-native architectures
Smaller product engineering teams with end-to-end ownership
Practical use of

AI within software development

Location & Employment
This is a

permanent position

and candidates must be based in, or able to be permanently employed in:
UK | Spain | Portugal | Italy | Poland

Please note that B2B and contract arrangements are not available for this position you will be employed through EOR (Employer of Record)

If you’re a Senior Software Engineer who wants to remain hands-on while playing a key role in a major technology modernisation, we’d love to hear from you.

📌 Senior Software Engineer (Castro)
🏢 Intro
📍 Castro