Join a high-performing engineering team building next-generation lending products and a financial super-app. You will design elegant, idiomatic Kotlin solutions, scale existing services for international expansion, and contribute to collaborative design forums. This role offers the chance to solve complex architectural challenges within a supportive, people-first engineering culture during a period of rapid global growth.
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London, United Kingdom / RemoteNot Disclosed
Senior Kotlin/JVM Engineer at Unicorn Fintech Platform
Are you a Senior Kotlin or JVM Engineer looking to join one of the world's most successful fintech unicorns? This is a rare opportunity to help shape a next-generation lending platform and financial super-app as it scales globally. You'll work with a top-tier engineering team on complex architectural challenges using a modern stack including Kotlin, GraphQL, and Kubernetes. With a people-first culture, hybrid flexibility, and a mission to revolutionize consumer finance in the UK and US, this is the perfect place to grow your career and impact millions of users.
Overview
Role overview
Company
About the company
High-growth unicorn fintech platform
Responsibilities
What you will do
- Build and integrate new APIs and tune existing microservices to support high-volume scaling.
- Participate in frequent collaborative design forums with stakeholders to shape technical strategy.
- Maintain high code quality using Kotlin, GraphQL, and modern DevOps practices like GitHub Actions.
Candidate profile
Who this is a fit for
- Strong commercial experience with Kotlin or JVM-based languages and a passion for clean code.
- Deep understanding of relational databases and the ability to grasp complex financial business domains.
- Proven track record in automated testing and working within agile/Kanban environments.
What makes it remarkable
Why this role is remarkable
- Work at a profitable unicorn backed by top-tier global venture capital firms and institutional investors.
- Hybrid flexibility with unique office perks, including in-house chefs and a strong emphasis on mental well-being.
- Massive scale opportunities as the company expands its successful product suite into the US market.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 14 million jobs daily and introduces you directly to hiring managers.
How does this work?
Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack