West London, London, United Kingdom Hybrid / WFH Options
Client Server
Backend Developer/Software Engineer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Backend Developer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely successful and growing commodities trading firm that specialise in trading silver and … features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a friendly … degree educated, having achieved a 2.1 or above gained in Computer Science (or similar STEM discipline) from a top tier university (e.g. Russel Group) You have strong Java and Kotlin development experience You have experience with Agile processes and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms Other tech More ❯
West London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely successful and growing commodities trading firm that specialise in trading whiskey. As a … features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a friendly … above gained in Computer Science (or similar STEM discipline) from a top tier university (e.g. Russel Group) backed by A's at A-level You have strong Java and Kotlin development experience You have experience with Agile processes and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms Other tech More ❯
London, England, United Kingdom Hybrid / WFH Options
Client Server
Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely successful and growing commodities trading firm that specialise in trading silver and gold. … features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a friendly … above gained in Computer Science (or similar STEM discipline) from a top tier university (e.g. Russel Group) backed by A's at A-level You have strong Java and Kotlin development experience You have experience with Agile processes and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms Other tech More ❯
Kotlin Developer (London, UK) Hybrid: 2-3 days a week work from office Get The Future You Want! Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll … and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world. Your Role We are seeking passionate and experienced Senior Kotlin Developer with strong backgrounds in Spring Boot and API design. The ideal candidates are forward-thinking individuals with a senior developer's mindset, capable of driving complex features end … technical solutions and maintain clear communication across teams Proactively identify and address technical challenges, driving continuous improvement in the codebase and processes. Stay updated with the latest trends in Kotlin, Spring Boot, and API design. Work closely with Mobile and Web FE team to build Backend for Frontend that enables faster scalable FE development Your Profile Proficiency in KotlinMore ❯
Kotlin Developer (London, UK) Hybrid: 2-3 days a week work from office Get The Future You Want! Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll … and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world. Your Role We are seeking passionate and experienced Senior Kotlin Developer with strong backgrounds in Spring Boot and API design. The ideal candidates are forward-thinking individuals with a senior developer's mindset, capable of driving complex features end … technical solutions and maintain clear communication across teams Proactively identify and address technical challenges, driving continuous improvement in the codebase and processes. Stay updated with the latest trends in Kotlin, Spring Boot, and API design. Work closely with Mobile and Web FE team to build Backend for Frontend that enables faster scalable FE development Your Profile Proficiency in KotlinMore ❯
Hammersmith, Greater London, UK Hybrid / WFH Options
Client Server
Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Read on to fully understand what this job requires in terms of skills and experience If you are a good match, make an application. Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure … features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a friendly … above gained in Computer Science (or similar STEM discipline) from a top tier university (e.g. Russel Group) backed by A's at A-level You have strong Java and Kotlin development experience You have experience with Agile processes and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms Other tech More ❯
Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Read on to fully understand what this job requires in terms of skills and experience If you are a good match, make an application. Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure … features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a friendly … above gained in Computer Science (or similar STEM discipline) from a top tier university (e.g. Russel Group) backed by A's at A-level You have strong Java and Kotlin development experience You have experience with Agile processes and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms Other tech More ❯
and experience will include: 5+ years of experience building and scaling distributed systems, ideally serving millions of users Good knowledge in one or more JVM-based languages (Must have Kotlin and ideally with Micronaut) Proven experience in DevOps practices, including running and operating what you build Experience designing CI/CD pipelines and driving improvements in developer productivity Comfortable More ❯
Entra) • Comfortable building and developing Infrastructure templates with Infrastructure as Code using either: Terraform, Cloudformation, Deployment Manager or ARM • Linux and Windows administration • Software development experience - ideally in Java, Kotlin, Python, Apps Script, JavaScript or C#/C++ • Containerisation experience such as Docker, Kubernetes or OpenShift • Experience of security protocols such as PKI, TLS etc • Virtualisation experience, KVM/ More ❯
Senior Full Stack Developer – Kotlin/Java/React (Hybrid, London) We're working with an insurtech company that’s redefining how consumers experience insurance in the digital age. Their mission is to simplify and personalise the insurance journey, leveraging modern technology, intuitive design, and deep industry insight to deliver standout experiences – particularly in the automotive and mobility sectors. … Responsibilities: Designing and developing backend services and REST APIs using Kotlin and Java Building and integrating front-end interfaces using React.js, TypeScript & PostgreSQL Creating and maintaining AWS Lambda functions and infrastructure using Terraform Collaborating closely with product, design, and domain experts in a fast-moving, agile environment Playing a key role in shaping architecture and tech strategy as the … platform scales Qualifications: 6+ years' experience with Kotlin/Java, React.js, and TypeScript A solid grasp of SQL and practical experience with PostgreSQL Comfortable working with infrastructure-as-code and DevOps practices in AWS Experience working in agile teams with strong CI/CD and testing culture Strong communication skills – you're able to explain complex technical topics clearly More ❯
Senior Full Stack Developer – Kotlin/Java/React (Hybrid, London) We're working with an insurtech company that’s redefining how consumers experience insurance in the digital age. Their mission is to simplify and personalise the insurance journey, leveraging modern technology, intuitive design, and deep industry insight to deliver standout experiences – particularly in the automotive and mobility sectors. … Responsibilities: Designing and developing backend services and REST APIs using Kotlin and Java Building and integrating front-end interfaces using React.js, TypeScript & PostgreSQL Creating and maintaining AWS Lambda functions and infrastructure using Terraform Collaborating closely with product, design, and domain experts in a fast-moving, agile environment Playing a key role in shaping architecture and tech strategy as the … platform scales Qualifications: 6+ years' experience with Kotlin/Java, React.js, and TypeScript A solid grasp of SQL and practical experience with PostgreSQL Comfortable working with infrastructure-as-code and DevOps practices in AWS Experience working in agile teams with strong CI/CD and testing culture Strong communication skills – you're able to explain complex technical topics clearly More ❯
Manchester, Lancashire, England, United Kingdom Hybrid / WFH Options
Charles Simon Associates Ltd
Senior Android Developer - (Android, EMV kernel, Development, Kotlin, SOLID Design, RESTful, SDK, CI/CD, Applications) - Contract - Home Based Charles Simon Associates are currently looking for a Senior Android Developer on initially a 6 month contract basis for a global business based in the UK with offices across Europe and the Far East. All candidates must have hands on … Rate: Up to £450 per day D.O.E Skills/Requirements for the Senior Android Developer: Extensive Android Development experience EMV kernel experience, in terms of working with terminals Strong Kotlin programming Understanding of SOLID Design practices Android SDK Ability to work individually and proactively Start date is ASAP for the Senior Android Developer The Senior Android Developer will be … provide visa sponsorship for this role at this time. Applicants must have the right to work in the United Kingdom without sponsorship." Senior Android Developer - (Android, EMV kernel, Development, Kotlin, SOLID Design, RESTful, SDK, CI/CD, Applications) - Contract - Home Based More ❯
Guildford, Surrey, United Kingdom Hybrid / WFH Options
BAE Systems (New)
sensitive nature of the work, limited context can be provided. Responsibilities include designing solutions at system and component levels, acting as a technical authority, developing applications with React, TypeScript, Kotlin, and engaging with key stakeholders. Skills & Experience Essential Experience developing full-stack applications Proficiency with modern web frameworks in TypeScript/JavaScript Experience with OOP languages such as Java … Kotlin, C# Designing and implementing SQL databases Ability to work in a dynamic environment with customer interaction Desirable Willingness to travel occasionally to West Midlands Experience with React and TypeScript Experience with Kotlin or Java Knowledge of UI testing frameworks like Cypress or Selenium Leadership experience or acting as Technical Authority Experience eliciting user requirements and designing customer More ❯
gen in the "Secure Tech" focused industry — with real impact and purpose. Key responsibilities: React Native Developer (Expo) – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing, and CI/CD pipelines. … re looking for: React Native Developer – Secure Tech Ideally 4+ years’ experience with React Native, (Expo SDK is nice to have). Strong knowledge of native module development in Kotlin/Swift (flexible in experience). API Experience (Gmail API nice to have). Hands-on experience with secure systems, testing frameworks, and Git workflows. Excellent communication and problem More ❯
gen in the "Secure Tech" focused industry — with real impact and purpose. Key responsibilities: React Native Developer (Expo) – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing, and CI/CD pipelines. … re looking for: React Native Developer – Secure Tech Ideally 4+ years’ experience with React Native, (Expo SDK is nice to have). Strong knowledge of native module development in Kotlin/Swift (flexible in experience). API Experience (Gmail API nice to have). Hands-on experience with secure systems, testing frameworks, and Git workflows. Excellent communication and problem More ❯
London, England, United Kingdom Hybrid / WFH Options
RICHARD WHEELER ASSOCIATES
Senior Android Developer - Android, Kotlin, MVVM, Java, XML health care apps Do you have the following skills, experience and drive to succeed in this role Find out below. Central London circa £80k DoE + discretionary annual Bonus Hybrid working 3-4 days per week in the office A cracking opportunity for a Senior Android Developer to join a small More ❯
is crucial to improving performance, refining UX, and shaping the future of mobile at the organisation. Currently built using React Native, the app increasingly incorporates native elements (Swift/Kotlin) to unlock better performance and user experience. The incoming Android + iOS Engineers will be instrumental in driving this evolution forward. Key Responsibilities Collaborate with the Engineering Manager and … backend, and product teams Drive technical excellence, with a focus on high-quality code, maintainability, and best-in-class mobile experience Candidate Profile Strong experience developing mobile apps using Kotlin Deep understanding of native Android development, frameworks, and tools Proven track record of delivering high-quality, performant applications A passion for clean, maintainable code and continuous improvement Strong sense More ❯
is crucial to improving performance, refining UX, and shaping the future of mobile at the organisation. Currently built using React Native, the app increasingly incorporates native elements (Swift/Kotlin) to unlock better performance and user experience. The incoming Android + iOS Engineers will be instrumental in driving this evolution forward. Key Responsibilities Collaborate with the Engineering Manager and … backend, and product teams Drive technical excellence, with a focus on high-quality code, maintainability, and best-in-class mobile experience Candidate Profile Strong experience developing mobile apps using Kotlin Deep understanding of native Android development, frameworks, and tools Proven track record of delivering high-quality, performant applications A passion for clean, maintainable code and continuous improvement Strong sense More ❯
and performance enhancement as part of our profiling tools and load testing. Requirements Commercial experience with a core programming language, like Java or any other JVM language (Groovy, Scala, Kotlin ) Expertise in API Engineering Experience with relational database technologies like PostgreSQL DevOps: CI/CD More ❯
and squads that focus on specific products and projects – and depending on your strengths and interests, you'll have the opportunity to move between them. Technologies we use: Java, Kotlin, Kubernetes, Apache Kafka, GCP, BigQuery, Spark While we're looking for professional skills, culture is just as important to us. We understand that everyone's unique – and that diversity … Flexibility regarding tools and languages: for example you have to be open to debug an SSO issue one day in a python service and dig into some Java/Kotlin out-of-memory issue the other day (of course we take into account your expertise and you will have team members to help you out!). Knowledge of data More ❯
something awesome, together, today. About the role and team: Our iOS and Android teams work simultaneously to bring similar but distinct experiences to our clients. Our Android developers use Kotlin, Coroutines and the latest Jetpack libraries. As we continue we're always looking to find and adopt the best tools for the job - whether that's making our CI … s within our project teams or in the wider mobile community. What you'll be doing: Developing mobile apps with a focus on readable, maintainable and tested code using Kotlin, Coroutines and modern android development practices Creating modern adaptable user experiences with Jetpack Compose Collaborating with designers, product owners, testers and clients to deliver great products as an agile More ❯
the technical architecture for our mobile Ad Tech stack , ensuring scalability, performance, and compliance with industry standards. Design and optimize ad-serving workflows for mobile apps built with Flutter, Kotlin, and Swift , ensuring seamless integration with ad mediation and programmatic platforms. Lead technical decision-making around ad integrations, header bidding, and low-latency ad rendering. Collaborate with engineering, product … app advertising. Requirements 6+ years of experience in software engineering with a focus on Ad Tech architecture, programmatic advertising, and mobile monetization . Strong knowledge of mobile development (Flutter, Kotlin) and a good understanding of backend development . Experience with Extreme Programming (XP) - Paired programming, TDD, C I etc. Hands-on experience integrating and optimizing mobile ad SDKs (Google More ❯
the technical architecture for our mobile Ad Tech stack , ensuring scalability, performance, and compliance with industry standards. Design and optimize ad-serving workflows for mobile apps built with Flutter, Kotlin, and Swift , ensuring seamless integration with ad mediation and programmatic platforms. Lead technical decision-making around ad integrations, header bidding, and low-latency ad rendering. Collaborate with engineering, product … app advertising. Requirements 6+ years of experience in software engineering with a focus on Ad Tech architecture, programmatic advertising, and mobile monetization . Strong knowledge of mobile development (Flutter, Kotlin) and a good understanding of backend development . Experience with Extreme Programming (XP) - Paired programming, TDD, C I etc. Hands-on experience integrating and optimizing mobile ad SDKs (Google More ❯
and AudioCodes SBCs, ARM/ECB, and backend management tools Familiarity with DevOps tools , Agile delivery, and automation practices Proficiency in Python , JavaScript , HTML/CSS , or Java/Kotlin Working knowledge of networking (routers, switches, firewalls, SASE) - Network+ or CCNA a plus Cloud certification (AWS, Azure or GCP preferred) Experience in writing detailed documentation and collaborating across technical More ❯
bring: 5+ years commercial experience with embedded systems Strong technical knowledge and commercial use of modern C++ Knowledge of industrial product development - marine or similar Knowledge of Android/Kotlin and mobile applications is highly beneficial Exposure to CI/CD, DevOps, Atlassian tools A mathematical, electrical engineering or STEM degree is highly desirable Why you will love this More ❯