Reading, Berkshire, South East, United Kingdom Hybrid / WFH Options
Halian Technology Limited
One of the UKs most iconic omni-channel retailers is looking for a Senior Java Developer to join their expanding digital engineering function. This position requires deep expertise in Kotlin or modern Java , strong architectural understanding of microservices , and a passion for technical leadership and mentoring. Experience working within ecommerce, mobile, or customer-facing digital platforms is highly desirable. … environment, collaborate with agile product teams, and contribute to a high-traffic platform used by millions of customers. Key Responsibilities: Design, build, and maintain scalable, high-performance services using Kotlin or Java Provide technical leadership and mentoring to other engineers in the team Contribute to solution architecture and strategic technical direction Build, integrate, and maintain REST APIs and backend … and DevOps Optionally take on people management responsibilities for engineers Stay updated with emerging backend and cloud technologies Key Skills & Experience 5+ years of back-end development experience using Kotlin or modern Java Expertise in microservice architectures and frameworks like Spring Boot or http4k Deep understanding of RESTful API design and integration Proven experience mentoring engineers and contributing to More ❯
to their growth and the wider community. Actively contribute to technical decision-making and project shaping from inception to release. Key Requirements: Extensive experience in native Android development using Kotlin and Java . Strong grasp of MVVM , MVP , and modern Android architecture patterns. Deep understanding of TDD , pair programming , and Agile methodologies (Scrum/Kanban). Proficient with CI … iOS development (Swift), GraphQL, microservices, or cloud platforms (AWS, GCP, Azure). Understanding of modern front-end technologies like React/Redux or experience in backend services (Java/Kotlin). Passion for UX and a customer-centric approach to development. Why Join? Flexible hybrid working: Work remotely with occasional visits to the office Opportunities for continuous learning, growth More ❯
Birmingham, West Midlands, United Kingdom Hybrid / WFH Options
Halian Technology Limited
to their growth and the wider community. Actively contribute to technical decision-making and project shaping from inception to release. Key Requirements: Extensive experience in native Android development using Kotlin and Java . Strong grasp of MVVM , MVP , and modern Android architecture patterns. Deep understanding of TDD , pair programming , and Agile methodologies (Scrum/Kanban). Proficient with CI … iOS development (Swift), GraphQL, microservices, or cloud platforms (AWS, GCP, Azure). Understanding of modern front-end technologies like React/Redux or experience in backend services (Java/Kotlin). Passion for UX and a customer-centric approach to development. Why Join? Flexible hybrid working: Work remotely with occasional visits to the office Opportunities for continuous learning, growth More ❯
Reading, Berkshire, South East, United Kingdom Hybrid / WFH Options
Halian Technology Limited
to their growth and the wider community. Actively contribute to technical decision-making and project shaping from inception to release. Key Requirements: Extensive experience in native Android development using Kotlin and Java . Strong grasp of MVVM , MVP , and modern Android architecture patterns. Deep understanding of TDD , pair programming , and Agile methodologies (Scrum/Kanban). Proficient with CI … iOS development (Swift), GraphQL, microservices, or cloud platforms (AWS, GCP, Azure). Understanding of modern front-end technologies like React/Redux or experience in backend services (Java/Kotlin). Passion for UX and a customer-centric approach to development. Why Join? Flexible hybrid working: Work remotely with occasional visits to the office Opportunities for continuous learning, growth More ❯
and excellence across our Mail and Calendar products. Key responsibilities Develop and maintain cross-platform mobile applications for Android using a blend of cross-platform (Rust) and native technologies (Kotlin, Swift) Take end-to-end ownership of mobile application development projects: you'll be comfortable with scoping projects, walking back from deadlines and being able to discern the important … overcome challenges Passion for continuous learning and driving change in the rapidly evolving field of mobile development Excellent communication and interpersonal skills Proven experience developing mobile applications Android using Kotlin as well as cross-platform technologies Proficiency with Jetpack Compose for Android, and familiarity with Rust Strong understanding of mobile app architecture, design patterns and best practices Knowledge of More ❯
Cambridge, Cambridgeshire, East Anglia, United Kingdom Hybrid / WFH Options
Oscar Associates (UK) Limited
Senior Software Developer - HealthTech | React Native, Kotlin, Node.js, Python ?? Hybrid - Remote with 1-2 Days/Week Onsite (Cambridge Area) ?? Permanent | £65,000 - £75,000 DOE I'm working with an innovative, fast-growing business in the healthtech space , developing cutting-edge Software as a Medical Device (SaMD) products that are transforming patient care and accessibility on a global … product, data, and clinical experts. ?? The Role Lead development of cross-platform mobile apps (Android & iOS) Architect scalable, modular applications across the stack Build with technologies like React Native , Kotlin , Node.js , and Python Collaborate with UI/UX, product, and data teams to deliver clean, reliable features Champion modern DevOps and CI/CD practices Mentor junior developers and … contribute to team-wide technical standards ? What You'll Need 5-10 years' hands-on development experience Strong background in React Native and Kotlin Proficient in backend languages, ideally Node.js and Python Experience with cloud platforms such as Firebase Solid understanding of mobile app architecture and performance Comfortable in agile, fast-moving environments ?? Why Apply? A chance to build More ❯
features, improve performance, and ensure a seamless user experience. This is a unique opportunity to work on impactful projects in a fast-paced, innovative environment, including: App development in Kotlin Problem solve with our team, bringing new perspectives and experience into our team Implement modern best practices and high quality, testable, readable code Identify and fix bugs and performance … improve the development process by implementing tools and automation. Key experience Proven experience as an Android engineer with at least 5+ years of hands-on development experience. Proficiency in Kotlin, with a strong understanding of Jetpack Compose and Fragments Experience in SDK development; pragmatic approaches to interface design and error handling and recovery. Knowledge of image processing (OpenCV) Knowledge More ❯
Lancaster, Lancashire, United Kingdom Hybrid / WFH Options
Quantum Base Limited
features, improve performance, and ensure a seamless user experience. This is a unique opportunity to work on impactful projects in a fast-paced, innovative environment, including: App development in Kotlin Problem solve with our team, bringing new perspectives and experience into our team Implement modern best practices and high quality, testable, readable code Identify and fix bugs and performance … improve the development process by implementing tools and automation. Key experience Proven experience as an Android engineer with at least 5+ years of hands-on development experience. Proficiency in Kotlin, with a strong understanding of Jetpack Compose and Fragments Experience in SDK development; pragmatic approaches to interface design and error handling and recovery. Knowledge of image processing (OpenCV) Knowledge More ❯
Lancaster, Lancashire, United Kingdom Hybrid / WFH Options
Quantum Base Limited
improve performance, and ensure a seamless user experience. This is a unique opportunity to work on projects with a positive impact in an innovative environment, including: App development in Kotlin Problem solve with our team, bringing new perspectives and experience into our team Mentor and guide more junior members of the team Implement modern best practices and high quality … and automation Key experience Proven experience as an Android engineer with at least 5+ years of hands-on development experience and a good understanding of Jetpack Compose Proficiency in Kotlin, including coroutines Excellent software engineering skills with a focus on modern best practices (nice to have examples: TDD, pair programming, refactoring, CI/CD, automation) Knowledge of Agile methodologies More ❯
you be doing? This is an opportunity to join one of our agile product teams working as a Staff Back-End Software Engineer. You will be using your excellent Kotlin or Java skills to build and support new features adding value for Our Business As a Staff Engineer, you will also use your knowledge of Software Engineering to lead … role is known as Product Engineer (L6). Essential skills/experience you'll need Extensive experience leading, coaching and mentoring individuals/teams Expertise in either server side Kotlin or a modern version of Java. A structured approach to systems analysis and development. A good understanding of Microservice Architectures. Experience with application frameworks such as http4k or Spring More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Richard Wheeler Associates
Senior Android Developer - Android, Kotlin, MVVM, Java, XML - health care apps 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, acclaimed, highly creative app and technology company (circa 20) known for ground-breaking patented technology in the health … Developer with a strong track record of delivering high-quality apps and tackling complex engineering challenges. You will be highly respected in your current role for your deep Android, Kotlin, MVVM expertise. The apps are fully native, primarily developed in Kotlin, with legacy Java code being phased out. The technologies run directly on the phone with limited server … will evolve into a leadership position. Essential Skills and experience: 6+ years of high-level Android development experience, with a wider software engineering background (8+ years in total) Excellent Kotlin skills and comfortable with other languages e.g. Java A strong numerate Degree (Computer Science/similar) Able to work independently, as well as confidently pair program with others Good More ❯
platform, your work will ensure we deliver impactful solutions that meet the needs of our customers and stakeholders alike. Our Tech Stack The backend of our Zable app is Kotlin, AWS, GraphQL and the frontend is React Native with TypeScript. Across the rest of Lendable we also use PHP 8, Symfony 6&7, Kotlin, AWS, MySQL, PostgreSQL, RabbitMQ More ❯
an inclusive culture. We are now looking for an Android Developer to join the Guardian's product and engineering team. Our award-winning Android application is primarily created in Kotlin and Java using Android Studio. We're focussed on providing a fast and stable experience to our users, and our Play Store rating of 4.7 stars is testament to … ll be building and testing major new features, as well as improving and maintaining existing functionality for The Guardian's Android apps. Our current codebase is 90%+ in Kotlin, but you may be required to work with Java too. You won't be coding in isolation - our culture is strongly collaborative, whether pair programming with other developers or More ❯
Senior Software Engineer - Java/Kotlin - Equity Derivatives - VP We are seeking a senior developer to join the London based team part of the Equity Derivatives Pre-Trade technology group. This role will position you as a technical and delivery lead to help to design and deliver the build out of a pre-trade request-for-quote and pricing … classes. Proficient in multi-threading and parallel task programming. Proven experience in ensuring robust testing quality practice and maintaining clean CI/CD pipelines. Preferred Qualifications: Experience working in Kotlin, Kafka, ELK. Experience leveraging LLMs assistant tools rationally for coding Understanding of trade booking and life cycle processes Knowledge of Mifid II, Dodd Frank regulations and controls Knowledge/ More ❯
About the job Job Title: Staff Backend Engineer (Kotlin) Location: Remote (UK-based candidates only) Salary: £100,000 - £130,000 Reports To: CTO Industry: Healthcare About the Company: I’ve partnered with an exciting HealthTech start-up on a mission to revolutionise healthcare through technology. Following investment, they are now looking for a Staff Backend Engineer to join the … technical challenges and continuously improve the product and systems. Stay up to date with emerging technologies and apply them to build future-proof, efficient systems. Tech Stack: Primary language: Kotlin (experience with Java, Go, or similar multithreaded backend languages is welcome) Database: PostgreSQL Cloud Platforms: AWS or GCP Containers & Orchestration: Docker, Kubernetes CI/CD for continuous integration and … deployment What We’re Looking For: 7+ years of backend engineering experience, with a strong background in multithreaded backend languages (Kotlin, Java, Go, Rust, etc.). Experience working in the HealthTech space Strong experience with PostgreSQL or similar relational databases. Proficient in system design, API development, and microservices architecture. Hands-on experience with cloud platforms (AWS, GCP), containerisation (Docker More ❯
Reigate, Surrey, England, United Kingdom Hybrid / WFH Options
Ada Meher
Android Developer – Remote (must be UK based) – £45k Fully remote | Kotlin/Jetpack Compose | Personal Development & Progression Plan | Flexible Hours | Evolving Digital Agency Ada Meher is currently working with a scaling digital agency as they look to recruit a Junior-Mid Level Android Developer to work on the development of a number of their exciting client projects. The successful … applicant can expect to work on both greenfield development and BAU development project using Android and surrounding tech such as Kotlin & Jetpack Compose and MVI.This role would suit someone who has a solid grasp on the foundations of Android Development and is keen to take advantage of the resources and expertise made available to them internally to aide their … ensure that employees are able to make the job work around their other life commitments. To Be Considered... 2+ years of experience in Android Mobile App Development Experience with Kotlin, Jetpack Compose and MVI Strong communication skills Experience working in a fast-paced environment Experience with Unit Testing/TDD would be beneficial As mentioned, due to their commitment More ❯
South West London, London, United Kingdom Hybrid / WFH Options
John Lewis & Partners
you be doing? This is an opportunity to join one of our agile product teams working as a Staff Back-End Software Engineer. You will be using your excellent Kotlin or Java skills to build and support new features adding value for Our Business As a Staff Engineer, you will also use your knowledge of Software Engineering to lead … working in teams delivering complex, performant, high quality software. Essential skills/experience youll need Extensive experience leading, coaching and mentoring individuals/teams Expertise in either server side Kotlin or a modern version of Java. A structured approach to systems analysis and development. A good understanding of Microservice Architectures. Experience with application frameworks such as http4k or Spring 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 ❯
Leeds, Yorkshire, United Kingdom Hybrid / WFH Options
CreateFuture
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 ❯
Manchester, Lancashire, United Kingdom Hybrid / WFH Options
CreateFuture
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 ❯
West London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Backend Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Backend 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 … 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 ❯
Java (and or Kotlin) Agile Developer (Belfast) - Officer Are you passionate about engineering, testing, automation and building high-quality software? Can you work across diverse teams to spread your passion and experience to raise the bar for everyone? Do you enjoy working in a collaborative Agile environment and seeing the applications that you build making users happy? If you … and has been identified as a major growth target for Citi - with technology providing the key to unlock this potential. Key Responsibilities: Delivery of Swap Processing components (Java/Kotlin) within the Strategic Swaps Platform Developer-led automated testing with a focus on Test Driven Development Working within an Agile team focussed on Continuous Integration(CI) and Continuous Deployment … and manage deadlines or unexpected changes in expectations or requirements Technical Experience: Java & Test-Driven Development are essential. 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 Technologies (OpenTelemetry, Elastic Stack/ More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Avanti
I’m working with a small but rapidly growing, start-up company on a mission to revolutionise the airline industry. They are currently recruiting for Kotlin Developers on a fully remote basis, although they do meet up in London once every 4-6 weeks. This role will be a fully hands-on position, where you will find yourself joining … in the airline space, such as RyanAir, EasyJet, British Airways, and American Airlines, and have been backed by some very influential figures. You will find yourself writing code in Kotlin for their API based systems, and will work across the full SDLC, including architectural and design discussions. You will be collaborating in defining, building, iterating, and testing core products … including building new features for their API based product. The technology you will be using consists of Kotlin as the main language and a Spring/Springboot Microservices architecture, which is hosted on AWS. You will be working on improving and building the solutions with a team of like-minded and creative developers. Tech stack: Kotlin, Spring, Java More ❯
value experience in some of the following areas, not necessarily all: Writing readable, well-designed, and well-tested software 5+ years of experience in building Android applications at scale Kotlin and/or Java expertise Scaling Android architecture 3+ years using Android development tools like Android Studio Working in cross-functional teams Knowledge of Android SDK and AndroidX Interest … in Kotlin development Workplace & Diversity At Deliveroo, people are our heart. We prioritize their welfare and offer benefits across health, family, finance, community, and growth. We embrace diversity, welcoming all backgrounds and identities. All you need is a passion for food and a desire to be part of a fast-growing startup in an exciting space. Benefits include: Competitive More ❯
Cambourne, Cambridgeshire, United Kingdom Hybrid / WFH Options
Remotestar
giving them access to over 19,000 financial markets. About the Role: We are looking for a highly skilled and passionate Senior Android Developer with a strong command over Kotlin and a solid grasp of agile methodologies , and modern engineering practices such as Test-Driven Development (TDD) and Extreme Programming (XP) . If you thrive in a team-oriented … and planning meetings. Stay up to date with Android development best practices, tools, and trends. Required Skills & Qualifications: 4+ years of hands-on experience in Android development. Proficiency in Kotlin and Android SDK. Experience with CI/CD tools like Jenkins, GitHub Actions, Bitrise, or similar. Strong understanding and application of Test-Driven Development (TDD) . Experience working in More ❯