Kotlin/Java Developer

Kotlin/Java Developer

Contract Type:

Contractor

Location:

London

Industry:

IT

Contact Name:

Scott McCormick

Contact Phone:

+44 (0)20 7002 0253

Date Published:

05-Jun-2026

Senior Software Engineer – Kotlin/ Java (Financial Services)

We’re supporting a major financial services programme that is scaling rapidly and looking to add several experienced backend engineers to the team.

We’re looking for strong Software Engineers with proven experience building scalable systems within regulated financial services environments.


Strong commercial experience with:

Kotlin

Java

Experience building scalable backend systems and microservices

Strong understanding of distributed systems and event-driven architecture

Previous experience working within Financial Services environments

Experience working within Agile engineering teams

Strong API and integration development experience


Desirable Experience

Payments / payment gateway experience

Banking or fintech platforms

Kafka or messaging systems

AWS / Kubernetes / cloud-native environments

High-volume transactional systems

Settlement, reconciliation or transaction processing exposure


Tech Stack

Java

Kotlin

Spring Boot

Kafka

Microservices

AWS / Kubernetes

REST APIs




Additional Details

London-based

Hybrid working (2–3 days onsite)

Inside IR35

Strong communication and stakeholder engagement skills preferred



We’re particularly interested in engineers who are comfortable working on complex, enterprise-scale systems within highly regulated environments.

...

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