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Lendable

Senior Kotlin/JVM Engineer

LondonHybrid · United Kingdom
Senior · FullTime · Engineering & Product
POSTED 22 DEC 2025VERIFIED 5H AGO
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Open for
316d
since 22 Dec 2025
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UK
licensed sponsor
Hiring · 30d
72
+4 net · open roles
TypeScriptReactCSSJavaKotlinReact NativeGraphQLPostgreSQLAWSKubernetesDocker

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 to

Take 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 or JVM based engineering experience that enables them to not only deliver elegant, idiomatic solutions in Kotlin or Java 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.

Our Tech Stack

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

What we’re looking for technically

Strong commercial Kotlin or JVM based engineering experience (willingness to work with Kotlin)

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

Source · Lendable · AshbyFirst seen 2 NovOriginal ↗Method