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Job Title:Full Stack Developer – Kotlin / Java. Kotlin, Java, SQL, HTML, and JavaScript.

Commercial experience with Kotlin, or strong Java experience with a willingness to learn Kotlin. This is an exciting opportunity to contribute to multiple Kotlin and Java-based applications and proof-of-concepts built using modern microservice architecture and agile engineering practices. Contract J

Candidates should have over 5 years of Android development experience, with deep knowledge of Kotlin and Jetpack Compose.

Pleo is seeking a Backend Engineer in Greater London to design and maintain scalable microservices primarily using Kotlin.

A prominent financial services firm in London is seeking a full stack developer skilled in Kotlin or Java, along with TypeScript.

The ideal candidate has a strong proficiency in Kotlin, excellent communication skills, and the ability to collaborate within a team.

Citibank (Switzerland) AG is seeking a Full Stack Engineer (Kotlin and/or Python) in Greater London.

A leading technology company in Greater London is seeking a full-stack cross-platform Android Engineer to lead mobile development projects using Kotlin and Rust.

Proficiency in JVM-based languages, specifically Java or Kotlin.

Ideal candidates will have experience in Kotlin and Jetpack Compose, alongside a passion for mobile development.

Backend Software Engineer Java Kotlin AWS (PR/100709) London, England. Backend Software Engineer / Developer (Java Kotlin AWS API) Hybrid WFH to £120k. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.

The ideal candidate has substantial experience in Java or Kotlin, strong background in team development, and stakeholder management.

V is looking for a (Mid/Senior/Staff) Backend Engineer in London to build and test services using modern tools from the JVM ecosystem such as Kotlin, Spring, and Vert.

We primarily use Jvm based languages (Java/Kotlin) but we also have parts of the platform that use other languages as needed.

Limelight Health is looking for a Senior Java / Kotlin Engineer to work on-site in Greater London or Leeds. Candidates should have over 5 years of experience in Java or Kotlin and practical experience in test driven development.

Ideal candidates will have strong Kotlin or Java backgrounds, delivery ownership, and a keen interest in payments and travel distribution.

Experience in any number of additional technologies (listed below) is advantageous: + Kotlin + Cloud Technologies (Kubernetes, Open Shift) + Messaging Technologies (Kafka, Solace, TIBCO) + Database / Data Store / Data Query Technologies (SQL Server, Trino, Mongo, S3) + Observability Technologie

Solytics Partners is seeking a highly experienced Kotlin Engineer to join their front-office engineering team. The ideal candidate will have strong commercial experience in Kotlin, a deep understanding of Extreme Programming methodologies, and experience with cloud-native systems.

TwinThread seeks a Software Engineer III for Backend Engineering focused on Java/Kotlin in London.

We are looking for a Full Stack Engineer who is equally comfortable building robust backend services in Kotlin and crafting polished, performant UIs in React. Design, build, and maintain Kotlin‑based backend services and RESTful/event‑driven APIs that power our payments and distribution infrastr

The ideal candidate will have 5+ years of experience in Android development, strong expertise in Kotlin, and a deep understanding of Android architecture patterns.

Ideal candidates have over 6 years of experience, strong skills in Kotlin and Android architecture, and a collaborative mindset.

Java (Kotlin) Developer (Agile, Test-Driven) – VP. Ownership and delivery on a variety of components (Java/Kotlin) within the Core Prime Brokerage platform.

You will migrate their app from React Native to a fully native Android experience using Kotlin.

Candidates should have 4-5 years of mobile development experience, proficiency in Kotlin, and familiarity with Jetpack Compose.

This hybrid role involves enhancing an in-house mobile application for live sports tracking, requiring expertise in Kotlin and the Camera 2 API.

A leading financial services firm in Greater London is seeking a Senior Lead Software Engineer.The successful candidate will drive innovative product solutions while prioritizing collaboration and diversity in a tech-driven environment.Responsibilities include developing scalable and secure code, pr

Apron, a leading fintech company, is looking for a Backend Engineer to join their world-class Engineering team.The successful candidate will have 6-15 years of experience and will work cross-functionally to build innovative products such as Capture and Bill Pay while focusing on system design and co

The role involves working with Kotlin or Java to develop and enhance features that drive business value.

AWS GraphQL (it would be nice if you were familiar with this but it’s not a deal breaker) Postgres RabbitMQ Docker KubernetesFrontend React & React Native, TypeScript, MobX, Redux, Stylus and SASS*Other We build our Kotlin projects using Gradle and GitHub Actions, deploying to production

You’ll work with Kotlin, Kafka, Kubernetes, Docker, AWS Aurora Postgres, and other modern technologies.

Our Android app is written fully in Kotlin. Experience in using industry standard tools for Android development, such as Kotlin, Dagger, Jetpack libraries.

Integration Testing — Automated tests in Kotlin.

Strong proficiency in modern backend languages such as Kotlin and/or Python.

The role involves hands-on development with Kotlin, focusing on building a high impact consumer product. The ideal candidate should have over 5 years of commercial Android experience and deep knowledge of Kotlin.

A leading fintech company in Greater London is seeking an experienced mobile app developer to help build their new Android app using Kotlin.

As a hybrid WFH Backend Software Engineer/Developer (Java Kotlin AWS), I will be working on a Tech. Strong Java and Kotlin serverside development experience.

In this hands-on role, you will design high-quality Android applications using Kotlin, integrate with backend services, and enhance mobile solutions.

Adept in Kotlin, CI/CD, and Android SDK, you will ensure high-quality code and manage app releases.

The role involves leading feature delivery, collaborating with product teams, and writing clean Kotlin code with Jetpack Compose.

The role involves designing and maintaining secure backend services using Kotlin, Java, and Spring Boot, primarily in a remote setup with occasional onsite attendance in Sheffield, Leeds, or London.

Java (Kotlin) Developer (Agile, Test-Driven) – VP in Greater London.

The successful candidate will possess strong backend skills in Kotlin/Python and a deep understanding of trading workflows.

You will develop secure and scalable customer-facing applications using Kotlin for backend services and TypeScript with React for the frontend. Candidates should be proficient in Kotlin and TypeScript and communicate clearly across teams.

In this hybrid role, you will contribute to impactful projects, utilizing Kotlin and modern Android Jetpack components.

In this role, you will design and build the Android platform, take lead on migrating the app from React Native to Kotlin, and enhance the app's performance and user experience.

A global financial services corporation is seeking a Java (Kotlin) Developer (Agile, Test-Driven) – VP to engineer innovative finance solutions. This role involves ownership and delivery of Java/Kotlin components within the Core Prime Brokerage platform, technical leadership for agile teams, and o