26 to 50 of 67 Kotlin Jobs in the UK

engineering teams. Deep expertise in Microsoft ecosystems, modern cloud architectures, and distributed systems. Strong knowledge of Web, Mobile, FE technologies such as JavaScript, React, Kotlin, .Net, Azure. Experience implementing CI/CD pipelines, observability, and secure engineering practices. Track record of scaling teams and delivering in fast-paced, evolving ...

hiring for Senior Android Developer - (Kotlin/Java/Performance Optimization) Location: London, UK (Hybrid) - weekly 2-3 Days in office Job Description: Designing and developing advanced mobile applications for the Android platform using Android SDK and Jetpack Compose Refactoring legacy C codebases into Kotlin to enhance maintainability … product managers to deliver high-quality solutions Ensuring clean, scalable, and efficient code following best practices and modern development standards Key Skills: Android, Kotlin, Java, Android SDK, Jetpack Compose, REST APIs, Room, C, Performance Optimization ...

Senior experience level General QA experience testing python/Django applications Experience with automated continuous integration and regression testing Using Behave, Kotlin and Selenium toolset BDD-style automated acceptance testing using Gherkin feature files Experience writing test code (for automated tests, we want to avoid anyone who has only ...

Senior experience level General QA experience testing python/Django applications Experience with automated continuous integration and regression testing Using Behave, Kotlin and Selenium toolset BDD-style automated acceptance testing using Gherkin feature files Experience writing test code (for automated tests, we want to avoid anyone who has only ...

product discovery, checkout, payments, and loyalty features while contributing to a modern, modular Android codebase. Responsibilities Design, build, and maintain scalable Android applications using Kotlin Contribute to a modular, clean architecture (MVVM/Clean Architecture) Collaborate with Product, Design, and Backend teams to deliver new features Optimise application performance … testable, and maintainable code Participate in code reviews and mentor junior engineers Contribute to CI/CD pipelines and release processes Technology Stack Languages: Kotlin (primary), Java (legacy) Architecture: MVVM, Clean Architecture UI: XML and/or Jetpack Compose Networking & Data: REST APIs, Retrofit, Coroutines/Flow Android: Jetpack ...

DevX_Kotlin (or Java) Developer SheffieldHybrid - 60% office 40% home Duration: 30/11/2026 Rate £418 MUST BE PAYE THROUGH UMBRELLA Role Description: Required Experience in Kotlin (or significant Java experience with a willingness to learn Kotlin) Experienced in at least two or three … control owners and development teams to manage/view their compliance with a range of software development controls. The candidate would be working on Kotlin and Java-based web applications and APIs. There are 2-3 applications and PoCs we are hiring for. Exact candidate allocation will depend ...

Android (Kotlin) Engineer - London, Hybrid A major banking company are looking for an Android Engineer to work on mobile applications that are used by tens of millions of their cardholders around the world. They want someone with strong technical skills and creativity; someone who enjoys solving tough problems … Skills & experience (if these are not clear in your CV you will not be considered for the role) Must-Haves Strong Kotlin proficiency experience working on modern app architecture (distributed app structures, migrated codebases, modularised apps) Moderate to intermediate AI tooling adoption (experience using AI in engineering workflows) Strong ...

systems using modern engineering practices. The environment is data-driven, product-focused, and centred around delivering real value to customers. Tech environment Java/Kotlin (JVM ecosystem) Microservices architecture Cloud-native (AWS/GCP) Spring/Spring Boot Docker & Kubernetes Messaging & streaming technologies Distributed tracing and observability tooling What … downtime releases Collaborating in cross-functional squads and contributing to engineering best practices What we’re looking for Strong backend engineering experience (Java/Kotlin preferred) Experience working with distributed systems and cloud technologies A problem-solving mindset with a focus on quality and ownership Comfortable working in fast ...

designers and architects to build high‐quality mobile applications. Your responsibilities will include: Designing and contributing to mobile application architecture Developing new features using Kotlin (Java experience beneficial) Collaborating with backend teams and integrating APIs Working closely with designers to deliver intuitive, beautiful interfaces Ensuring performance, scalability, and security … role is ideal for someone who combines technical expertise with strong communication skills and a collaborative mindset. The ideal candidate brings : Strong experience with Kotlin and Android SDK Knowledge of Jetpack libraries: Room, LiveData, ViewModel, WorkManager, Navigation, Compose Familiarity with Material Design and responsive UI principles Experience integrating third ...

Package: £70,000 – £90,000 Industry: Secure Software/Defence Technology What You’ll Be Doing: Designing and developing high-quality Android applications using Kotlin for secure, real-world deployments Building scalable, maintainable code using modern frameworks and architectural patterns Integrating mobile apps with backend services (APIs, messaging systems … driving consistent engineering quality Producing clear technical documentation and supporting delivery in Agile teams Main Skills Needed: Strong commercial Android development experience, primarily with Kotlin Solid grasp of modern Android architecture (e.g. MVVM, MVI, Clean Architecture) Experience integrating APIs and handling data via tools like Retrofit or similar Understanding ...

particularly well suited to strong software engineers/software developer with experience in one or more of the following: C#, Java, TypeScript, Android/Kotlin, or other modern software engineering stacks. Benefits £75,000 - £95,000 basic salary Bonus Hybrid working and flexibility Pension Private healthcare Electric car scheme … Engineer, Backend Engineer, Full Stack Engineer, Mobile Engineer, or similar Strong ability in one or more modern programming languages such as C#, Java, TypeScript, Kotlin/Android, or similar Strong software engineering fundamentals including code quality, maintainability, and problem solving Experience building production software in commercial environments Ability ...

Lead Android Developer | Fintech | Up to £110,000 | Leeds, Hybrid (2 Days) The Company We are working with a international Fintech Start-Up in the payments space who are completely changing the game for how ...

Android Developer - Kotlin, Jetpack, RxJava, WireMock Client is looking for a highly experienced Android Developer to come in and work on their mobile applications. Key Skills: Strong Android development expertise: Kotlin, Jetpack Compose, Coroutines, MVI architecture, and REST API integration Testing, debugging & performance skills: JUnit, bug fixing, performance ...

Backend Software Engineer/Developer (Kotlin Java Spring Boot) London/WFH to £80k Are you a backend focused technologist with real-time financial systems experience? You could be progressing your career as a Backend Software Engineer at a highly successful financial software house whose award winning software enables … About you: You have experience within a financial services environment working on complex real-time systems You have commercial server side development experience using Kotlin, likely to be from a Java background You have experience with Spring Boot and microservices You have experience with messaging technologies such as Kafka ...

Mobile Engineer (Kotlin Multiplatform) Location: Onsite/Hybrid (London) Our client is on a mission to change people's lives for the better through wellness. They are transforming into a social wellness organisation, empowering people to improve their physical, mental, social, and nutritional wellbeing through exceptional, holistic experiences. They … countries. As a Senior Mobile Engineer, you'll take ownership of complex technical areas, deliver high-impact features, and establish best practices across a Kotlin Multiplatform (KMP) ecosystem. You'll work cross-functionally with Engineering Leads, Product, Design, QA, and Backend teams to build outstanding mobile experiences for millions ...

with our product and design teams to build and ship high-quality features for our Android application. Code Quality: Write clean, maintainable code in Kotlin (and some legacy Java) while following modern architectural patterns (MVVM/MVI). UI/UX Implementation: Turn Figma designs into pixel-perfect layouts … Bring Experience: 1+ years of professional experience in Android development (internships count if they were high-impact!). Language Proficiency: Strong foundations in Kotlin and a solid understanding of Java. Android SDK: Familiarity with Activities, Fragments, Services, and Lifecycle components. Networking: Experience working with RESTful APIs using Retrofit ...

code (Pulumi) Building and maintaining production systems for machine learning, including deploying models and developing inference services Contributing to client-side development, including Kotlin-based applications for wearable/smart devices Collaborating closely with a small engineering team through code reviews, pair programming, and architectural decision-making The Person … loosely defined problems Desirable experience: Experience with (or strong interest in learning) Rust Exposure to machine learning systems, model serving, or inference pipelines Kotlin or Android development experience Familiarity with Docker and CI/CD practices Previous experience in a startup or early-stage environment Interest in hardware-integrated ...

Senior Kotlin Engineer Ncounter is supporting a leading organisation within the publishing and media space as they look to strengthen their backend engineering capability. This team is responsible for building and evolving platforms that aggregate, process and distribute large-scale editorial and content datasets, enabling internal teams and external … information in near real time. You will join a highly capable engineering function focused on delivering scalable backend services, working across API development and Kotlin-based microservices that power content ingestion, indexing and distribution workflows. The environment is data intensive, with a strong emphasis on performance, reliability and clean ...

description Role- Java & Kotlin Mandatory Skills : Java, Kotlin, Microservices, Spring, SpringBoot Mode-2-3 days from London Type-FTE/Perm Job Summary Seeking a Specialist with 5 to 7 years of experience in Java Frameworks and Kotlin to develop scalable and efficient backend solutions using Microservices … Design and implement microservices architecture to build scalable and efficient backend solutions Write clean maintainable and efficient code adhering to industry best practices Utilize Kotlin alongside Java to enhance backend development Collaborate with crossfunctional teams to define design and deliver new features Ensure application performance quality and responsiveness Troubleshoot ...

business is hiring a Software Engineer to support continued growth and rising demand for its platform. Software EngineerRemote | Up to £60,000 | Java or Kotlin | Spring BootThis is a back-end focused role, ideal for an engineer who enjoys building reliable, scalable applications and wants to work on software … option to attend the Newbury office around once a month if desired. What you will be doing Developing back-end applications using Java or Kotlin Building software with Spring Boot Designing and delivering new features Enhancing existing products and platform capability Working across the full software development lifecycle Supporting ...

Backend Specialist (Java & Kotlin) Location: London (Hybrid: 2-3 days per week) Type: Full-time/Permanent Experience: 5-7 years We are seeking a high-caliber Backend Specialist with a strong foundation in Java and Kotlin to join our development team in London. In this role … maintainable backend solutions while collaborating with cross-functional teams to deliver high-performance features. Key Responsibilities Develop & Maintain: Build robust applications using Java and Kotlin within a Spring Boot environment. Architect: Design and implement scalable Microservices architectures. Collaborate: Work with Project Leads, BAs, and DevOps to translate requirements into ...

Lead Mobile Engineer - £85k | FinTech/Banking | Android, Kotlin | Leeds/hybrid About the business: G.Digital have partnered with a FinTech/Bank making moves in the payments industry by creating revolutionary digital first solutions. They are the epitome of modern banking via mobile and online platforms, with … streamlined, app-based experience and no traditional branch network. About the role: 🔥Provide technical and people leadership 🔥Remain hands by working with Android, Kotlin and overseeing mobile architecture patterns in AWS environments. 🔥Collaborate with the wider tech teams including the iOS lead, Product Managers, UX/UI Designers ...

Backend Software Engineer/Developer (Kotlin Java Spring Boot) London/WFH to £80k Are you a backend focused technologist with real-time financial systems experience? You could be progressing your career as a Backend Software Engineer at a highly successful financial software house whose award winning software enables ...

months, you will : Architect and launch the first production version of our new B2B React Native application. Provide reliable senior-level cover for the Kotlin Android codebase. Establish clear migration principles for introducing React Native into an existing native environment. Build trust across Data, Product, and Mobile teams … modern animation libraries. You will define architectural standards and ensure scalability from day one. Maintain & Stabilise - Provide senior-level coverage for the existing Kotlin Android application (Clean Architecture, MVVM). Ensure stability for both staff-facing and passenger-facing applications operating in live rail environments. Strategise Migration - Formulate ...

Contract Android Engineer (Kotlin) – Outside IR35 Location: Leeds/Hybrid (1 day per week onsite) Day Rate: £400 to £450 per day Contract Length: Initial 2-month contract (very strong likelihood of long-term extension) **Must Be Eligible for Security Clearance in the UK** The Opportunity We’re partnering … with a growing technology consultancy supporting a key client on a mobile product initiative. They’re looking for an experienced Android Engineer (Kotlin) to join the team on an initial 2-month engagement, with a very strong likelihood of extension into a longer-term piece of work. This ...