development journey! Key skills and experience: Experience with automated testing frameworks like Playwright Experience with profiling tools and load testing Commercial experience with Java or JVM languages (Groovy, Scala, Kotlin ) API Engineering expertise Relational database knowledge, e.g., PostgreSQL DevOps skills: CI/CD, Docker, Git Additional skills that are a plus: Understanding of Software Engineering Principles: SOLID, design patterns More ❯
Experience with automated testing frameworks such as Playwright Experience with profiling tools and load testing Commercial experience with a core programming language like Java or JVM languages (Groovy, Scala, Kotlin ) Expertise in API Engineering Experience with relational databases like PostgreSQL DevOps: CI/CD, Docker, Git The following skills and technologies are a plus: Understanding of Software Engineering Principles More ❯
Birmingham, West Midlands, 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 ❯
Bromsgrove, Worcestershire, United Kingdom Hybrid / WFH Options
Talk Recruitment
. Highly motivated and able to learn new technologies quickly. Knowledge of relevant console platforms certification requirements (XRs and TRCs etc) Expertise with microservices and languages such as Java, Kotlin, C# or similar Experience with message queue systems such as RabbitMQ or similar Experience with product development lifecycle. Stress-testing, performance-tuning, and optimization skills. Debugging in multi-threaded More ❯
Bromsgrove, Worcestershire, United Kingdom Hybrid / WFH Options
Talk Recruitment
. Highly motivated and able to learn new technologies quickly. Knowledge of relevant console platforms certification requirements (XRs and TRCs etc) Expertise with microservices and languages such as Java, Kotlin, C# or similar Experience with message queue systems such as RabbitMQ or similar Experience with product development lifecycle. Stress-testing, performance-tuning, and optimization skills. Debugging in multi-threaded More ❯
Contract Mobile Software DeveloperLocation: Hybrid (Coventry + remote flexibility)Contract: 6 months | £300-£350/day (Outside IR35)We're looking for a Kotlin-first engineer who thrives across web, backend, and mobile platforms. This is a hands-on role working with a modern tech stack and 4-week release cycles on scalable, high-performance apps.Must- Have Tech Stack … Kotlin Multiplatform (iOS, Android, Backend)• Spring Boot 3 (Kotlin only - no Java!)• Jetpack Compose• Room (mobile local data storage)You’ll Be:• Building Angular web apps• Developing backend microservices• Creating cross-platform mobile apps• Designing efficient SQL schemas• Debugging full stack issues & collaborating in agile teams Ideal Candidate:• Confident in Kotlin across all layers• Experienced with microservices More ❯
proven engineering leader with a background in Digital Software Development, ideally in fast-paced, customer-facing environments. Strong experience with modern technologies including .NET, Node.js, JavaScript frameworks (React, Vue.js), Kotlin, Swift, and API integrations. Skilled in building cloud-native solutions on Azure or AWS, with IaC, observability, and HA/DR patterns in mind. Strong knowledge of CMS platforms More ❯
Burton-on-Trent, Staffordshire, England, United Kingdom Hybrid / WFH Options
Holland & Barrett International Limited
manufacturing centre (really cool machines!), and possibly even visiting our office in Amsterdam and distribution centre in Beverwijk, Netherlands. Required Experience: A strong background in software development using Java, Kotlin , or similar. Experience working with frameworks and tools such as Spring Boot, Spring WebFlux, or Project Reactor . Practical experience and understanding of Apache Kafka . Experience with both More ❯