Lead Kotlin Engineer

Lead Kotlin Engineer

London Full-Time 48000 - 84000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead Kotlin development, build APIs, and collaborate on innovative fintech solutions.
  • Company: Join Lendable, a fast-growing fintech unicorn transforming consumer finance with cutting-edge technology.
  • Benefits: Enjoy remote work options, competitive pay, equity, and a fully stocked kitchen.
  • Why this job: Be part of a dynamic team making a real impact in the finance industry while fostering a collaborative culture.
  • Qualifications: Strong Kotlin experience, mentorship skills, and a knack for clean coding are essential.
  • Other info: Work in a vibrant Shoreditch office with a focus on well-being and inclusivity.

The predicted salary is between 48000 - 84000 £ per year.

About Lendable

Lendable is on a mission to make consumer finance amazing: faster, cheaper, and friendlier. 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 600 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

  1. Take ownership across a broad remit. You are trusted to make decisions that drive a material impact on the direction and success of Lendable from day 1

  2. Work in small teams of exceptional people, who are relentlessly resourceful to solve problems and find smarter solutions than the status quo

  3. Build the best technology in-house , using 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 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 .

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 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

What we’re looking for in a team member

  • 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

Interview process

  • 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

Life at Lendable

  • The opportunity to scale up one of the world’s most successful fintech companies .

  • Best-in-class compensation , including equity.

  • You can work from home every Monday and Friday if you wish – on the other days, those based in the UK come together IRL at our Shoreditch office in London to be together, build and exchange ideas.

  • Enjoy a fully stocked kitchen with everything you need to whip up breakfast, lunch, snacks, and drinks in the office every Tuesday-Thursday.

  • We care for our Lendies’ well-being both physically and mentally, so we offer coverage when it comes to private health insurance

  • We\’re an equal-opportunity employer and are looking to make Lendable the most inclusive and open workspace in London

Check out our blog !

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Lead Kotlin Engineer employer: Lendable

Lendable is an exceptional employer, offering a dynamic work culture that prioritises collaboration and innovation in the fast-paced fintech sector. With best-in-class compensation, including equity, and a commitment to employee well-being through private health insurance, Lendable fosters an inclusive environment where team members can thrive and grow. Located in the vibrant Shoreditch area of London, employees enjoy the flexibility of remote work options and a fully stocked kitchen, making it a rewarding place to build a meaningful career.
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Contact Detail:

Lendable Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Lead Kotlin Engineer

✨Tip Number 1

Familiarise yourself with Kotlin and its latest features, especially if you have experience with version 1.7.20. Being able to discuss recent updates or improvements in Kotlin during your interview can demonstrate your passion and commitment to the language.

✨Tip Number 2

Brush up on your knowledge of AWS and GraphQL, as these are part of the tech stack at Lendable. Even if you're not an expert, showing that you understand how these technologies fit into the overall architecture can set you apart from other candidates.

✨Tip Number 3

Prepare to discuss your mentorship and coaching experiences. Lendable values team dynamics, so sharing specific examples of how you've helped others grow can highlight your ability to contribute positively to their culture.

✨Tip Number 4

Research Lendable's products and their impact on consumer finance. Understanding their mission and being able to articulate how your skills can help them achieve their goals will show that you're genuinely interested in the role and the company.

We think you need these skills to ace Lead Kotlin Engineer

Strong commercial Kotlin experience
Mentorship and coaching skills
Ability to write simple, clean code
Experience with relational databases
Understanding of NoSQL databases
Quick comprehension of complex financial business domains
Rapid understanding of different software architectures
Knowledge of abstraction and interpolation
Ability to write comprehensive automated tests
Familiarity with Kanban agile methodology
Strong problem-solving skills
Effective communication and relationship-building skills
Desire for continuous learning and collaboration
Rational thinking and awareness of decision-making processes
Pragmatic approach to balancing code quality and delivery

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your Kotlin experience and any relevant projects you've worked on. Use specific examples that demonstrate your ability to write clean, efficient code and your experience with databases.

Craft a Compelling Cover Letter: In your cover letter, express your enthusiasm for Lendable's mission and how your skills align with their needs. Mention your mentorship experience and your approach to problem-solving, as these are key qualities they value.

Showcase Your Technical Skills: If you have experience with their tech stack (Kotlin, AWS, GraphQL, etc.), be sure to mention it. Highlight any relevant projects or contributions to open-source that demonstrate your technical capabilities.

Prepare for the Interview: Research Lendable's culture and values. Be ready to discuss your coding exercise and how you approach software design. Think about questions you want to ask them about the team and the projects you'll be working on.

How to prepare for a job interview at Lendable

✨Showcase Your Kotlin Expertise

Make sure to highlight your strong commercial experience with Kotlin during the interview. Be prepared to discuss specific projects where you've used Kotlin to solve complex problems, and demonstrate your ability to write clean, idiomatic code.

✨Prepare for Technical Discussions

Since the role involves architecture and design discussions, brush up on your understanding of different software architectures. Be ready to engage in interactive exercises that test your ability to think critically about system design and integration.

✨Demonstrate Team Collaboration Skills

Lendable values teamwork and collaboration, so be prepared to share examples of how you've successfully worked with others in past roles. Highlight your mentorship experience and how you've contributed to a positive team environment.

✨Ask Insightful Questions

At the end of the interview, take the opportunity to ask thoughtful questions about the company culture, team dynamics, and future projects. This shows your genuine interest in Lendable and helps you assess if it's the right fit for you.

Lead Kotlin Engineer
Lendable
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  • Lead Kotlin Engineer

    London
    Full-Time
    48000 - 84000 £ / year (est.)

    Application deadline: 2027-09-01

  • L

    Lendable

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