26 to 50 of 54 Kotlin Jobs in England

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 ...

Join a leading independent Banking and services provider as a Kotlin/Java Developer. Job Overview: The role sits within a Developer Experience (DevX) function focused on building and managing platforms that enable software engineering teams to develop, deploy, and operate applications efficiently and consistently.You will work on client … engineering team to continuously improve development processes Participate in peer reviews and contribute to knowledge-sharing initiatives Required Skills & Experience Strong experience in Kotlin or Java with the ability and willingness to work across both where required Experience developing REST APIs and working with frameworks such as Spring Solid ...

whether that's AI-powered prototyping, agent systems, or orchestration. MCP experience is a plus. Deep expertise in at least one programming language (JavaScript, Kotlin, Swift, or similar). We expect you'll use AI tools to accelerate your work — but there's no substitute for genuine fluency. Creative ...

Required : Experience in Kotlin (or significant Java experience ) Experienced in API development, SQL/databases, HTML/Javascript Excellent writing skills and attention to detail in code Proactive person who will not wait to be told what to do next or be unblocked by others Experience working with standard … active member of a team, participating in peer reviews and in testing others code through automated test scripting Skills Required: Experience in Kotlin (or Java with willingness to learn Kotlin) Experienced in at least two or three of the following: API development, SQL/databases, HTML/Javascript ...

Backend Engineer with deep expertise in JVM technologies to help scale and enhance their high-performance systems. There will be a requirement to use Kotlin moving forwards! This is an opportunity to work with modern architecture, collaborating with top-tier engineers in a fast-moving, product-focused environment. Responsibilities … team Stay curious about the wider engineering landscape and bring relevant insights back to the team Key Requirements Strong commercial experience in Kotlin or JVM technologies for backend development Confidence working with Spring Boot or Kotlin or Java to build robust microservices A passion for creating API-first ...

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 ...

with a large user base, contributing to new features, performance improvements, and architectural evolution. 5+ years of professional Android development Strong proficiency in idiomatic Kotlin, including asynchronous coding (coroutines, Deferred, Flow) Proficiency in Java 8+, including multithreading and concurrency Experience with Jetpack Compose, as well as legacy Android … Azure Pipelines or similar Comfortable in a team environment using code review and version control Technology Stack: Android: Java 8+, including multithreading and concurrency Kotlin MVVM Jetpack Compose, as well as legacy Android XML Views Nice to have: MongoDB SQL Experience building KMP modules Familiarity with Android WorkManager Experience ...

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 ...

Senior Android Engineer (Contract) | Kotlin, Jetpack Compose, Coroutines, Flow | High-Traffic Consumer App | £400/day | Remote (UK) | Outside IR35 We’re hiring a Senior Android Engineer (contractor) to join a product-focused team building a high-traffic consumer application used at scale. This is a hands-on role … scale Android app used by thousands/millions of users Working closely with product and design to make pragmatic technical decisions Writing clean, maintainable Kotlin code in a modern architecture Contributing to architectural direction (not just implementing tickets) Improving performance, reliability, and overall app quality Reviewing code and raising ...

Senior Android Engineer (Contract) | Kotlin, Jetpack Compose, Coroutines, Flow | High-Traffic Consumer App | £400/day | Remote (UK) | Outside IR35 We’re hiring a Senior Android Engineer (contractor) to join a product-focused team building a high-traffic consumer application used at scale. This is a hands-on role … scale Android app used by thousands/millions of users Working closely with product and design to make pragmatic technical decisions Writing clean, maintainable Kotlin code in a modern architecture Contributing to architectural direction (not just implementing tickets) Improving performance, reliability, and overall app quality Reviewing code and raising ...

Senior Android Engineer (Contract) | Kotlin, Jetpack Compose, Coroutines, Flow | High-Traffic Consumer App | £400/day | Remote (UK) | Outside IR35 We’re hiring a Senior Android Engineer (contractor) to join a product-focused team building a high-traffic consumer application used at scale. This is a hands-on role … scale Android app used by thousands/millions of users Working closely with product and design to make pragmatic technical decisions Writing clean, maintainable Kotlin code in a modern architecture Contributing to architectural direction (not just implementing tickets) Improving performance, reliability, and overall app quality Reviewing code and raising ...

Senior Android Engineer (Contract) | Kotlin, Jetpack Compose, Coroutines, Flow | High-Traffic Consumer App | £400/day | Remote (UK) | Outside IR35 We’re hiring a Senior Android Engineer (contractor) to join a product-focused team building a high-traffic consumer application used at scale. This is a hands-on role … scale Android app used by thousands/millions of users Working closely with product and design to make pragmatic technical decisions Writing clean, maintainable Kotlin code in a modern architecture Contributing to architectural direction (not just implementing tickets) Improving performance, reliability, and overall app quality Reviewing code and raising ...

team participating in peer reviews and in testing others code through automated test scripting SKILLS Experience in Java with willingness to learn Kotlin Experienced in at least two or three of the following API development SQL databases HTML JavaScript Lots of experience of working with microservices Strong technical ...

Senior Android Engineer London (Hybrid — 2 days onsite per week) Kotlin • Compose • Coroutines • Modular Architecture • KMP A high-growth technology business in the data and privacy space is looking for a Senior Android Engineer to join the team building their flagship app. This product helps users understand, control … benefit from their data, and sits at the heart of a rapidly expanding consumer and B2B ecosystem. Their Android app is fully Kotlin-based, heavily modularised, and all new features are built with Jetpack Compose. Coroutines and Flows are used extensively throughout, testing is taken seriously (unit ...

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 ...

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 … applications. You aspire to be an expert in Android development and have a strong interest in growing your skills You’re confident coding in Kotlin building in Android studio. You have some experience with Java or are willing to learn. You are curious, passionate about technology and finding creative ...

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 ...

Mobile Android (Kotlin) Engineer - London, Hybrid **NO SPONSORSHIP - Must have the right to work full time in the UK** Daily Rate: £300 PAYE/£350 via Umbrella per day Location: London- Hybrid 3 days/week Overview A major banking company are looking for a Mobile Android Engineer … development methodologies popular in Android and be able to dive deep and rapidly iterate on ideas with your team despite some ambiguity. Skills Strong Kotlin proficiency Experience working on modern app architecture (MVVM, Jetpack Compose, distributed app structures, migrated codebases, modularised apps) Moderate to intermediate AI tooling adoption (Experience ...

Required Skills: Experience in Kotlin (or significant Java experience with a willingness to learn Kotlin) Experienced in API development , SQL/databases, HTML/Javascript Excellent writing skills and attention to detail in code Proactive person who will not wait to be told what to do next … launch new features. Proactively work with customers to resolve their issues and respond to feature requests. BuildAPIs and microservices . Skills Require: Experience in Kotlin (or Java with willingness to learn Kotlin) Experienced in at least two or three of the following: API development, SQL/databases, HTML ...

Senior Android Engineer to help shape a modular, scalable mobile platform used across multiple clients. The Role Build and scale Android apps using Kotlin + Jetpack Compose Drive a modular, reusable architecture (MVVM, multi-module) Contribute to a growing design system and component library Influence technical direction and architecture … decisions Collaborate with product, design, and distributed engineering teams What They’re Looking For Strong Kotlin and modern Android architecture skills Experience shipping apps to the Play Store Familiarity with CI/CD, testing frameworks, and best practices Comfortable working in fast-paced/scaling environments Nice to Have ...

confidence across web and mobile. Responsibilities Execute & Manage Testing : Own the manual testing lifecycle for web (Vue.js/Rails) and mobile (Native Swift/Kotlin) applications. Shift Left: Participate in design and requirements sessions, clarifying how A/Cs are tested before a single line of code is written. … backend and the client devices. The Tech Environment: Management: TestRail, Jira. Web: Vue.js (Frontend), Ruby on Rails (Backend). Mobile: Native Swift (iOS) & Native Kotlin (Android) as well as React Native. Note: While our stack includes RSpec and Vuewrapper, this is a functional QA role. You are not expected ...

focus on low-latent messaging solutions and highly available event-driven services. Must have experience: 5+ years experience in JVM, we use both Kotlin and Java Multi-threading, concurrency and Low-latency experience Exposure to Kotlin as well as Strings, Memory Management and associated problems a plus Automated … Kafka a huge plus To excel in this role, you will need a minimum of 7 years' experience in JVM, with proficiency in both Kotlin and Java. Experience in multi-threading, concurrency, and low-latency is essential, as well as exposure to Kotlin, Strings, Memory Management, and associated ...

London (2x per week) We are very excited to be continuing our partnership on this exclusive position to join the company as a Kotlin Software Engineer from a JVM background. You will be joining a highly innovative scale-up leading at the forefront of the GreenTech industry, as they … clean energy for the charging of electric vehicles. In this position, they are looking for experience in: 3+ years commercial experience JVM development - Java, Kotlin or Scala (Bonus) if you have already worked with Kotlin Microservices architecture Public cloud technologies e.g. AWS Have worked in modern, product-focused ...

mobile platforms at scale What they’re looking for 8+ years in mobile engineering, with 2+ years leading teams Deep expertise in Android (Kotlin) or iOS (Swift) , with exposure to both Strong understanding of modern architectures ( MVVM, MVI ) and UI frameworks ( Compose, SwiftUI ) Experience building and scaling high-traffic … mobile apps Ability to communicate effectively across technical and non-technical audiences Comfortable operating across both strategy and hands-on delivery Nice to have Kotlin Multiplatform or other cross-platform experience Background in AdTech, telecoms, or B2B2C environments Why join Own mobile at a critical growth stage Significant impact ...

verify the accuracy, completeness and reliability of functionality Contribute to the development and enhancement of UI automated testing frameworks built on Expresso (Android using Kotlin) Integrate automated tests into CI to identify issues during development cycle Contribute to PR reviews, submit PR's and contribute to the goal … across applications Improve QA delivery through defining test strategies through coordination with multiple back-end teams Key Skills- Hands on mobile testing experience Strong Kotlin/Java experience Mobile engineering Expresso (Android) Automation skills to automate regression Tests (UI) 60% manual and 40% automation Must be able to Automate ...