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 ❯
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 ❯
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 ❯
engineering team, working with a high quality code base and the latest tools, where you will promote your skills to be an expert in complex frontend development in Android (kotlin) native platforms. Your primary focus will be development of mobile applications and their integration with back-end services. You will be working alongside other engineers and developers working on … pragmatic and effective technical solution Dive into difficult problems and successfully deliver results on schedule REQUIREMENTS Must have technical skills A minimum of 2 years of experience Language: Android, Kotlin Familiarity with cloud message APIs and push notification Web architecture: Rest and restful APIs, micro-services Version control: GIT Nice to have technical skills (Strongly advised) Containers: Docker, kubernetes More ❯
target for Citi - with technology providing the key to unlock this potential. Role Overview/What will you do: Ownership and delivery on a variety of components (Java/Kotlin) within the Core Prime Brokerage platform. Hands-on Development. Provide technical leadership for an agile development team, championing best practices in Continuous Integration and Continuous Deployment (CI/CD … in managing and implementing successful projects Subject Matter Expert (SME) in at least one area of Applications Development 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 ❯
allow customers to monitor and control Roku streaming devices from TVs to Players and beyond. This role offers the opportunity to work across a modern, evolving tech stack including Kotlin, Compose, and Googles's latest frameworks. You'll collaborate closely with design, product, and cross-functional engineering teams to bring innovative features to life, improve performance, and make every … libraries, and propose how we can leverage them Contribute to roadmap planning, technical design, and release delivery We're Excited If You Have Professional Android development experience, ideally with Kotlin and/or Compose Strong experience shipping and maintaining production apps in the Play Store Proficiency in using AI tools (e.g., GitHub Copilot, ChatGPT) and experience with prompt engineering More ❯
Senior Android Developer - Kotlin Central London - 3-4 days per week in the office £75-85k A cracking opportunity for a Senior Android Developer to join a small, acclaimed, highly creative app and technology company (circa 20) known for groundbreaking patented technology in the health care field, including several patents in the pipeline. The apps are truly innovative … for a proactive and experienced Senior Android Developer to work across a portfolio of successful apps in a fun, talented team. 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 interactions. As a key member of the team, you’ll have a … continuous integration, and code quality tools Essential Skills and experience: 5+ 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 ❯
One of the UKs most iconic omni-channel retailers is looking for a Lead 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 ❯
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 Lead 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 £92,400 (depending on experience) Contract type: Permanent What will you be doing? Joining one of our agile product teams as a Staff Back-End Software Engineer, utilizing Kotlin or Java to develop and support new features that add value for our business. Leading the shaping of new projects and supporting the professional development of less experienced engineers … quality, performant software. Internally, this role is known as Product Engineer (L6). Essential skills/experience Experience leading, coaching, and mentoring teams or individuals. Expertise in server-side Kotlin or modern Java. Structured approach to systems analysis and development. Good understanding of Microservice Architectures. Experience with frameworks such as http4k or Spring Boot. Knowledge of Agile methods like More ❯
serving ads across Expedia Group platforms Collaborate with engineers, product managers, and designers to deliver high-quality, user-centric features Contribute to full-stack development, including backend services in Kotlin/Java and GraphQL APIs Build tooling and reusable components for partners to easily integrate with our ad platform Take ownership of projects from ideation to deployment, with a … technologies Solid understanding of software engineering fundamentals and clean code principles Excellent problem-solving and analytical skills Strong communication skills and ability to collaborate with distributed teams Experience with Kotlin, Java, or other backend languages Familiarity with GraphQL and building RESTful APIs Exposure to CI/CD tools like Jenkins, Git, Docker, or TeamCity Experience in Agile/Scrum More ❯
stand-ups, retros, and workshops Continuously improve the app's performance and scalability with guidance from the team About You: Some hands-on exposure to Android development written in Kotlin (through personal projects, uni, or bootcamps) Interest in a TDD approach and writing quality code A strong growth mindset and a desire to keep learning Comfortable asking questions and … Nice to have (but not essential): Familiarity with Jetpack Compose, RxJava, Coroutines, or Flow Knowledge of version control tools like Git Experience working in agile teams Our Tech Environment: Kotlin Jetpack Compose (with some legacy XML) RxJava (being phased out), Coroutines & Flow Firebase MVI architecture GitHub (CI/CD) Jira How we get there: We're product-led and 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 ❯
target for Citi - with technology providing the key to unlock this potential. Role Overview/What will you do: Ownership and delivery on a variety of components (Java/Kotlin) within the Core Prime Brokerage platform. Hands-on Development. Provide technical leadership for an agile development team, championing best practices in Continuous Integration and Continuous Deployment (CI/CD … in managing and implementing successful projects Subject Matter Expert (SME) in at least one area of Applications Development 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 ❯
We are looking for a passionate and experienced mobile developer to join our growing team to help to develop native iOS and Android apps, using Swift with SwiftUI and Kotlin with Compose respectively. Experience with these technologies is not required, but is preferred. If you care about creating great user experiences, writing solid and maintainable code, and continuously improving … someone who: Has experience working as a software developer. Has experience in building mobile applications for iOS, Android, or both. Has experience with a modern mobile language such as Kotlin or Swift. Is passionate about writing high-quality code. Can demonstrate outstanding technical ability. Wants to design and implement new functionality in close collaboration with colleagues who work with More ❯
We are looking for a passionate and experienced mobile developer to join our growing team to help to develop native iOS and Android apps, using Swift with SwiftUI and Kotlin with Compose respectively. Experience with these technologies is not required, but is preferred. If you care about creating great user experiences, writing solid and maintainable code, and continuously improving … someone who: Has experience working as a software developer. Has experience in building mobile applications for iOS, Android, or both. Has experience with a modern mobile language such as Kotlin or Swift. Is passionate about writing high-quality code. Can demonstrate outstanding technical ability. Wants to design and implement new functionality in close collaboration with colleagues who work with More ❯
Java, Scala and Kotlin Software Engineering Java, Kotlin and Scala are three of the most powerful and versatile programming languages in the modern software development ecosystem. Known for their scalability, performance, and robustness, these languages are widely adopted across a variety of platforms from backend services and enterprise applications and cloud-based solutions. With the rise of JVM … are united by a common need: access to high-quality software engineering talent. Get in touch with a Specialist If you're looking for your next role in Java, Kotlin or Scala Software Engineering or if you're interested in learning more about the opportunities available, get in touch with one of our dedicated consultants. Whether you're seeking More ❯
Exciting Opportunity for Senior Kotlin Developer (Permanent) Hybrid working available Salary up to £92400 Are you a skilled Kotlin or Java developer based in the UK? Join our client's dynamic product team as a Staff Back-End Software Engineer in a hybrid role, offering flexibility with occasional in-office meetings. Your expertise will drive the creation of … managerial position. Your knack for creative solutions and a strong history of delivering complex software are vital. Key Requirements: - Lead, coach, and mentor teams effectively - Proficient in server-side Kotlin or modern Java - Strong system analysis capabilities - Knowledge of Microservice Architectures - Familiarity with frameworks like http4k or Spring Boot - Experience in Agile development (Scrum/Kanban) - Expertise in TDD More ❯
to get stuck into a variety of engineering problems, mainly focussing on backend development. Examples include cloud solutions written in Go running on Docker, custom Android application development using Kotlin, DevOps work improving our CI/CD pipeline, and more. Responsibilities Implement high-quality software solutions in Golang and Kotlin Utilise test-centric design to ensure highly testable More ❯
Senior Android Engineer, Kotlin, MVVM -health care app Central London - 3-4 days per week in the office To £85k DoE + discretionary annual Bonus A cracking opportunity for a SeniorAndroid Engineerto join one of the UKs leading app and technology companies. This small, highly creative team (circa 20) isknown for groundbreaking patented health care apps that are truly … innovative and positively impactpeoples lives. Were looking for a proactive and experienced Android Developer to work across a portfolio of f ully native apps , primarily developed in Kotlin, with legacy Java code being phased out. The technologies run directly on the phone with limited server interactions. Youll have a strong track record of delivering high-quality apps and tackling … leveraging unit tests, continuous integration, and code quality tools Youll need: 5+ years of high-level Android development experience 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 ❯
architect high quality web applications, and design key tools and systems that support said web applications. Top 5 Daily Responsibilities : Write and review code in JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL Test, debug, maintain and/or update full-stack web applications. Create services using standard and Google-specific software development tools. Write and review … Education: BS degree in Computer Science, Electrical Engineering, Math or related quantitative field or 3 years of experience in software development. 3+ years' experience writing JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL 3+ years' experience developing resource-oriented APIs 3+ years' experience designing and debugging databases Experience in multiple general purpose programming languages and building large More ❯
architect high quality web applications, and design key tools and systems that support said web applications. Top 5 Daily Responsibilities : Write and review code in JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL Test, debug, maintain and/or update full-stack web applications. Create services using standard and Google-specific software development tools. Write and review … Education: BS degree in Computer Science, Electrical Engineering, Math or related quantitative field or 3 years of experience in software development. 3+ years’ experience writing JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL 3+ years’ experience developing resource-oriented APIs 3+ years’ experience designing and debugging databases Experience in multiple general purpose programming languages and building large 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 ❯