Senior Kotlin/JVM Engineer at Unicorn Fintech Platform

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Title

Senior Kotlin/JVM Engineer at Unicorn Fintech Platform

Job Title

Senior Kotlin/JVM Engineer

Salary

Not Disclosed

Company Description

High-growth unicorn fintech platform

Job Description

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.

Location

London, UK or Remote (UK)

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.
  
  

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.
  
  

The ideal candidate

• 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.
  
  

Who are Jack & Jill?

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.

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.

Next steps

Step 1. Visit our website.

Step 2. Click 'Talk to Jack'.

Step 3. Talk to Jack so he can understand your experience and ambitions.

Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.

Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.

Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.