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Senior Kotlin Engineer @ Hackajob Ltd

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About this role

Salary: £100,000 - 100,000 per year

Requirements: Strong commercial Kotlin experienceAbility to write simple, clean codeExperience and understanding of databases; relational databases are a must, and NoSQL would be an advantageAbility to quickly understand complex financial business domainsAbility to understand different software architectures rapidlyUnderstanding of abstraction and interpolationAbility to write comprehensive automated tests at all levels of the pyramidUnderstanding of the Kanban agile methodology is an advantage Responsibilities: Build and integrate new APIs to support our collections functionCreate new internal toolsSupport our expansion of new products and supporting services in the USContribute to collaborative design discussions and architecture decisionsDeliver elegant, idiomatic Kotlin solutions to complex engineering challengesWork closely with stakeholders across the businessHelp improve our engineering capabilities as a teamParticipate in interview stages including coding exercise discussion, architecture/design exercises, and technical walkthroughs Technologies: SupportKanbanKotlinNoSQLAIAPIAWSBackendCloudDevOpsDockerFrontendGitHubGradleGraphQLJUnitKubernetesMachine LearningRabbitMQReactReact NativeReduxSASSTypeScript More:

We are Lendable, a fast-growing fintech company on a mission to build the worlds best technology to help people get credit and save money. We are one of the UKs newest unicorns, profitable since 2017, backed by top investors including Balderton Capital and Goldman Sachs, and loved by customers with a 4.9 Trustpilot rating across tens of thousands of reviews. Our engineering team is around 80 strong and has rebuilt major consumer finance products from scratch, and we are continuing to launch new products. We offer a collaborative, people-first environment with a broad remit, small teams, and a focus on ownership, learning, and pragmatic delivery. Benefits include best-in-class compensation with equity, hybrid working with home working on Mondays and Fridays, in-house chef-prepared lunches on in-office days, training budget, 10% time for engineers, active guilds, health coverage, retirement and savings support, employee referral bonuses, and office meals and snacks, with details varying by location and role.

last updated 36 week of 2026

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