Senior Kotlin Engineer

At Globawise, we empower technologists to thrive by connecting them with roles that deliver both impact and long-term growth.
We’re partnering with a high-performing UK Fin Tech that continues to redefine modern lending and credit infrastructure. Backed by strong market success and ongoing product expansion across the UK and US, their engineering team - now 80+ strong - is building the next generation of financial products, including lending platforms, credit cards, auto-finance solutions, and new launches planned for this year.
As a Senior Kotlin Engineer, you’ll join a newly forming pod with the opportunity to influence architectural decisions, shape design discussions, and help deliver elegant solutions to complex financial challenges. This is a role for an engineer who not only writes clean, idiomatic Kotlin but also elevates those around them through collaboration and thoughtful technical leadership.

Develop and maintain high-performance backend services in Kotlin, contributing to APIs, internal tooling, and new product capabilities.

Participate in collaborative design forums across engineering and business teams, influencing architectural decisions and system evolution.

Build and integrate APIs supporting collections functionality, new financial products, and US market expansion.

Deliver simple, maintainable, well-tested code across all layers of the testing pyramid using modern Kotlin testing frameworks.

Work closely with stakeholders across product, operations, and engineering to deeply understand complex financial domains and translate them into scalable systems.

• You write elegant, idiomatic Kotlin and value simplicity in design.
• You understand that great engineering is about people, not just code.
• You’re comfortable navigating complex financial domains and abstract system design.
• You think critically about architecture and understand trade-offs between quality and speed.
• You’re collaborative, pragmatic, and motivated to continuously improve yourself and your team.
• You can solve problems independently but know when to involve others.

• Kotlin (1.7+)
• AWS
• Graph
  
  QL (nice to have)

• React & React Native
• Type Script
• Gradle
• JUnit Jupiter
• Kotest
• Test Containers

• Strong commercial experience with Kotlin
• Ability to write clean, simple, maintainable code
• Solid experience with relational databases (Postgre
  
  SQL or similar)
• Understanding of software architecture and abstraction principles
• Experience writing comprehensive automated tests
• Ability to understand and work within complex financial domains

• Experience with No
  
  SQL databases
• Familiarity with GraphQL
• Experience working in Fin Tech or regulated environments
• Experience with Kanban or flow-based agile methodologies

At Globawise, we don’t just offer jobs — we provide launchpads for your career:

Top-Tier Compensation – Competitive salary and benefits aligned with your experience.
High-Impact Work – Help scale one of the UK’s most successful Fin Tech platforms.
Collaborative Culture – Join a team that values alignment, shared learning, and strong relationships.
Professional Growth – Work in an environment that encourages continuous improvement and architectural ownership.
Hybrid Flexibility – A balanced working model supporting both collaboration and focused deep work.

If you enjoy solving complex domain challenges, shaping architecture, and writing elegant Kotlin in a high-trust engineering culture – we’d love to meet you.

Apply now and let’s build something exceptional together.