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Senior Kotlin Engineer

Job in London, Greater London, W1B, England, UK
Listing for: Lendable
Full Time position
Listed on 2026-10-18
Job specializations:
  • Software Development
    Software Engineer, Full Stack Developer, Backend Developer, Cloud Engineer - Software
Job Description & How to Apply Below
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 most exciting unicorns with a team of over 800 people

Among the fastest-growing tech companies in the UK Profitable since 2017

Backed by top investors including Balderton Capital and Goldman Sachs Loved by customers with the best reviews in the market (4.9 across 10,000s of reviews on Trustpilot)
So far, we’ve rebuilt the Big Three consumer finance products from scratch: loans, credit cards and car finance. We get money into our customers’ hands in minutes instead of days.

We’re growing fast, and there’s a lot more to do: we’re going after the two biggest Western markets (UK and US) where trillions worth of financial products are held by big banks with dated systems and painful processes.

Join us if you want toTake ownership: you are trusted to make decisions that drive a material impact on the direction and success of Lendable from day 1

Work in small teams of exceptional people:
Lendies are relentlessly resourceful. We challenge the status quo to solve problems and find smarter solutions

Build the best technology in-house: we use new data sources, machine learning and AI to make machines do the heavy lifting

About the role

As we continue to build upon the diversity of our team we are thrilled to have the opportunity to bring on board a Senior Kotlin/JVM 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. Our current tech team have already built next-generation lending, credit card and auto-finance products alongside our Superapp.

There is more to build as we scale. 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, from building and integrating new API’s to help build out our new collections function to creating new internal tools and 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.

Our Tech Stack Backend Kotlin  1.7.20

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

RabbitMQDocker Kubernetes Frontend React  & React Native, Type Script, MobX, Redux, Stylus and SASSOther

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

We use JUnit Jupiter, Kotest and Test Containers for automated testing

What technical skills you’ll need to have Strong commercial Kotlin experience

An ability to write simple, clean code Experience and understanding of databases; relational databases are a must, No

Sql would be nice tooBe able to quickly understand complex, financial business domains

Understand different…
Position Requirements
10+ Years work experience
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