lendable
lendable4mo ago
New

Staff Kotlin Engineer

Londonfull-timelead
OtherEngineer
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Quick Summary

Overview

About Lendable Lendable is on a mission to build the world's best technology to help people get credit and save money. We're building one of the world’s leading fintech companies and are off to a strong start: One of the UK’s newest unicorns with a team of just over 700 people Among the…

Technical Tools
awsdockergithub-actionsgraphqlkotlinkubernetespostgresqlreacttypescriptagilefintechmachine-learningmentoring

Lendable is on a mission to build the world's best technology to help people get credit and save money. We're building one of the world’s leading fintech companies and are off to a strong start:

  • One of the UK’s newest unicorns with a team of just over 700 people

  • Among the fastest-growing tech companies in the UK

  • Profitable since 2017

  • Backed by top investors including Balderton Capital and Goldman Sachs

About the Role

~2 min read

As we continue to build upon the diversity of our team we are thrilled to have the opportunity to bring on board a Lead Kotlin Engineer. This is an opportunity to bring new experience, perspective and capabilities to our design discussions, helping shape our approach to delivering elegant solutions to complex engineering challenges as we continue to grow. This is the team that put the Tech in FinTech, our current tech team is around 80 strong and have helped transform finance by building a next-generation lending platform, a next-gen credit card, and auto-finance product, a superapp and they’re at it again with brand new product launches this year.

We're looking for an engineer with a depth of knowledge and recent hands-on Kotlin experience that enables them to not only deliver elegant, idiomatic solutions in Kotlin but also to contribute new knowledge and experience to our frequent collaborative design forums with stakeholders from every area of the business.

There’s a lot to do; building and integrating new API’s, tuning our existing services as they scale, supporting our expansion of new products and supporting services in the US.

We believe that software engineering is more than just code - it’s about people. We believe that the best teams are made of great people. That fundamentally great software engineering is about alignment, sharing what we know and being nice to each other. When we put all this together we make software engineering better by continually improving our capabilities as a team and making our working environment a happy and productive place.

There is more to read about us and our Lendies in the engineering blog right here and if you’d like to check our reviews out on Glassdoor you can see these here.

Backend

  • Kotlin 1.7.20

  • AWS

  • GraphQL (it would be nice if you were familiar with this but it’s not a deal breaker)

  • Postgres

  • RabbitMQ

  • Docker

  • Kubernetes

Frontend

  • React & React Native, TypeScript, MobX, Redux, Stylus and SASS

Other

  • We build our Kotlin projects using Gradle and GitHub Actions, deploying to production as soon as we finish a feature

  • We use JUnit Jupiter, Kotest and TestContainers for automated testing

  • Strong commercial Kotlin experience

  • Strong mentorship and coaching experience

  • An ability to write simple, clean code

  • Experience and understanding of databases; relational databases are a must, NoSql would be nice too

  • Be able to quickly understand complex, financial business domains

  • Understand different software architectures rapidly

  • Understands abstraction and interpolation

  • Able to write comprehensive, automated tests at all levels of the pyramid

  • Understanding of the Kanban agile methodology; not a deal breaker if you don’t

  • Someone who can get along with others and build relationships

  • Someone who wants to continually learn, improve and collaborate

  • Someone who can solve problems on their own but also knows when to go to their peers for help

  • Someone who is a rational thinker and is aware of the ‘why’ behind the way they do things

  • Someone who is a pragmatist who can sensibly weigh the tradeoffs between code quality and delivery

  • A 30 minute introductory call with one of our engineers

  • A short coding exercise to complete in your own time

  • Onsite or Video Interview lasting 60-90 minutes, comprising of:

    • Introduction of the team and kind of work you could be doing daily

    • Discussion around the coding exercise you completed

    • Interactive architecture/design exercise

    • Tech project walkthrough

    • Cultural/behavioural questions to see if you’d be a good fit for Lendable

    • Questions you may have about the company, role, etc

  • Winning team: the opportunity to scale up one of the world’s most successful fintech companies

  • Flexible working: flexible approach tailored to each role. Hybrid roles require three days in-office weekly; fully remote roles include regular opportunities for in-person connection through socials and off-sites

  • Socials & connection: opportunities and events to come together, socialise, and get to know each other beyond the office walls

  • Health coverage: support for your physical and mental wellbeing, including private health cover

  • Retirement & savings: long-term financial wellbeing through retirement savings plans

  • Employee referral programme: earn a competitive bonus when you refer successful new team members

  • Office meals & snacks: enjoy a fully stocked kitchen, plus complimentary lunches prepared by in-house chefs on in-office days at select locations

  • Sustainable commuting: cycle-to-work and electric vehicle salary sacrifice schemes available in select locations

Please note: The availability and details of specific benefits vary by location and role. For more information, please speak to your Talent Partner.

Check out our blog!

Location & Eligibility

Where is the job
London
Hybrid — some on-site time required
Who can apply
Same as job location

Listing Details

Posted
December 18, 2025
First seen
May 7, 2026
Last seen
May 7, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
16%
Scored at
May 7, 2026

Signal breakdown

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lendableStaff Kotlin Engineer