1 to 25 of 40 Kotlin Jobs in London

Staff Software Engineer (Mobile)

Hiring Organisation
Ripple
Location
London, England, United Kingdom
platform applications for iOS and Android using React Native and TypeScript . Native familiarity: While you live in JavaScript, experience with native code ( Swift, Kotlin , or Objective-C ) to bridge gaps or debug native modules is a significant plus. Form handling: You have experience building complex forms and implementing ...

Senior Engineering Team Lead - Android

Hiring Organisation
Dojo
Location
City of London, London, United Kingdom
mentoring a team of Android engineers in a high-impact area. A strong, hands-on background in Android development, with deep knowledge of Kotlin and modern frameworks (e.g., Jetpack Compose). Experience in library or SDK development, with an understanding of how to build extensible software for other developers ...

Senior Android Engineer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
London Area, United Kingdom
days per week in the office) Employment Type: Permanent Key skills and experience required: 6+ years’ experience developing Android applications Strong experience using Kotlin and modern Android architecture patterns (such as MVVM) Hands-on experience with Jetpack Compose and contemporary Android UI development Experience building modular Android applications using ...

Web Developer

Hiring Organisation
Information Tech Consultants
Location
City of London, London, United Kingdom
debug applications to optimize performance. Ensure the quality of the applications through unit testing and code reviews. Required Skills : Proficiency in Java/Kotlin and Android SDK. Experience with RESTful APIs and third-party libraries. Familiarity with version control systems like Git. Understanding of mobile UI/UX Designs. ...

Test Automation Specialist

Hiring Organisation
83zero
Location
City of London, London, United Kingdom
initiatives and knowledge-sharing activities Technology Exposure You will gain experience across a broad technical landscape, including but not limited to: Java, JavaScript, Node.js, Kotlin Spring Boot and RESTful microservices Selenium, Playwright, Cucumber, REST testing NoSQL databases Git-based version control systems Your Profile Essential experience: ISTQB Foundation certification ...

Java Full Stack Engineer (SC eligible)

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Code tools NoSQL (MongoDB) or SQL databases such as Postgres Experience working with GOV.UK standards or in the UK public sector Exposure to Node.js, Kotlin or C# Experience integrating solutions with LLMs (LangChain, Vercel AI, etc.) Why This Role Stands Out Real impact: contribute to digital services used ...

Senior Software Engineer

Hiring Organisation
Lancesoft Ltd
Location
London, United Kingdom
Employment Type
Contract
cross-functional, agile development team Enthusiasm for code development and education in this area Nice-to-Haves: Experience in pair programming Proficiency in idiomatic Kotlin for application development Experience: Extensive knowledge of Java programming language (5 years+) 5+ years practical experience in test driven development AI Integration: We have ...

Quality Assurance Engineer

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
candidate will have the following skills and experience: • Strong commercial experience in automation testing, ideally across both UI and API. • Proficiency in Java or Kotlin, with the ability to design scalable automation frameworks. • Confident working with web technologies such as HTML, CSS and JavaScript. • Hands‐on experience with tools ...

QA Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
candidate will have the following skills and experience: * Strong commercial experience in automation testing, ideally across both UI and API. * Proficiency in Java or Kotlin, with the ability to design scalable automation frameworks. * Confident working with web technologies such as HTML, CSS and JavaScript. * Hands-on experience with tools ...

Golang Engineer

Hiring Organisation
intro
Location
City of London, London, United Kingdom
evolving environment. Strong communication and collaboration abilities, with a focus on mentoring junior team members. Knowledge of front-end technologies (e.g., React, SwiftUI, Kotlin) is advantageous. Nice to Have: Experience in financial services or banking, with an understanding of industry-specific regulatory and compliance requirements. Familiarity with DevOps practices ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
City of London, London, United Kingdom
migrating serverless components (e.g., AWS Lambda) into Rails applications. Familiarity with Vue.js to support frontend collaboration. Experience working with mobile applications (React Native/Kotlin/Swift). Experience working in regulated industries or multi-client B2B systems. Contributions to open-source Ruby projects or technical blogging. Benefits Private ...

Senior Software Developers

Hiring Organisation
BrightBox Group
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day remote
best practices Work within cloud-based environments and modern development frameworks Required Skills & Experience Strong experience with Java and Spring Boot Working knowledge of Kotlin and/or Node.js Hands-on experience with AWS Familiarity with Amazon EKS and associated tooling Experience with Terraform or other Infrastructure as Code ...

Lead Mobile Developer

Hiring Organisation
R3vamp Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £120,000 per annum
applications at scale. Excellent JavaScript/TypeScript skills are essential, with expert knowledge is React Architecture. You will have worked previously with Swift and Kotlin, to design, review and guide native integrations. Deep understanding of mobile performance, lifecycle management and platform constraints within multi-team, complex environments is highly ...

Quality Assurance Engineer

Hiring Organisation
Harnham
Location
London Area, United Kingdom
within the squad. Support the wider adoption of test automation across the engineering team. Skills & Experience Commercial experience in QA automation with Java or Kotlin . Strong understanding of object-oriented programming principles. Experience testing APIs using tools such as RestAssured, Feign, Swagger, or Postman. UI automation experience with ...

Technical Lead

Hiring Organisation
Formula Recruitment
Location
City of London, London, United Kingdom
functional team Work closely with product managers and business stakeholders to align technical direction with strategic goals Write high-quality, production-ready code using Kotlin or Java Lead by example through code reviews, architectural decisions, and continuous delivery practices Drive improvements in engineering practices, tooling, and team workflows Help ...

Senior Back-end Software Engineer

Hiring Organisation
Heart Mind Talent
Location
City of London, London, United Kingdom
languages (consideration for others possible). Experience in a product-driven, fast-paced environment (e.g., startup or tech company). Willingness to work with Kotlin (current server-side language). Experience with relational databases. Working knowledge of cloud platforms, preferably Google Cloud Platform. Strong commitment to code quality, efficient ...

Senior Full Stack Developer - Europe Only / EU & UK Remote

Hiring Organisation
Comply365 CoAnalyst (formerly Beams)
Location
East London, London, United Kingdom
reliability or at-scale solutions Strong background in backend software development with deep knowledge of at least one popular backend programming language: Python, Go, Kotlin, PHP or Java preferred Track record of using enterprise-scale database solutions such as Postgres Experience with working on frontend web applications, Typescript experience ...

Senior Full Stack Developer - Europe Only / EU & UK Remote

Hiring Organisation
Comply365 CoAnalyst (formerly Beams)
Location
Central London / West End, London, United Kingdom
reliability or at-scale solutions Strong background in backend software development with deep knowledge of at least one popular backend programming language: Python, Go, Kotlin, PHP or Java preferred Track record of using enterprise-scale database solutions such as Postgres Experience with working on frontend web applications, Typescript experience ...

Senior Engineer

Hiring Organisation
Lancesoft Ltd
Location
London, United Kingdom
Employment Type
Contract
cross-functional, agile development team Enthusiasm for code development and education in this area Nice-to-Haves: Experience in pair programming Proficiency in idiomatic Kotlin for application development Experience: Extensive knowledge of Java programming language (5 years+) 5+ years practical experience in test driven development AI Integration: We have ...

Senior Engineer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
engineers who stay aware of emerging security considerations within these modern environments. Core Technical Skills Skills Strong backend engineering with Java and/or Kotlin Experience with Micronaut or Spring Boot Proven capability building and supporting distributed systems Familiarity with React/Next.js for UI-level integration ...

Senior Android Developer - London

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £90000/annum Bonus and Benefits
delivering new features and contribute to technical direction Work closely with product and design teams to create high-quality user experiences Develop clean, scalable Kotlin code using Jetpack Compose Promote engineering best practices including TDD, CI/CD, and automated testing Provide guidance and mentorship to other developers … team About You Strong experience developing Android applications using Kotlin and Jetpack Compose Good understanding of mobile architecture, design patterns, and scalable app design Comfortable working in Agile development environments with fast release cycles Experience using AI-powered development tools to improve productivity and quality A collaborative team player ...

Principal Python Engineer

Hiring Organisation
Ncounter
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£170,000 - £200,000 per annum
professional software development experience Strong proficiency in high-performance Python (deep ecosystem knowledge and best practices) Experience with at least one JVM language (Java, Kotlin, Scala) is an advantage Background in distributed systems and large-scale compute frameworks Familiarity with Docker, Kubernetes, Linux environments, and CI/CD automation ...

Technical Lead

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
play a key part in shaping architecture, mentoring engineers, and driving best practices across the platform. They’re looking for people with experience in: Kotlin (or strong Java engineers willing to transition) AWS or other major cloud platforms Event-driven & microservices architectures Working in modern, product-driven tech environments ...

Technical Architect

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day
ambiguous contexts. Strong experience of technical documentation on Confluence/SharePoint Desirable Experience with event-driven architectures and microservice-based data contracts. Knowledge of Kotlin and migration pathways to standard languages (Java, Python, etc.). Understanding of Power BI, CoPilot for Power BI, or GenAI (helpful but not core ...

Staff Software Engineer, AI/ML Product Engineering

Hiring Organisation
Entrust
Location
City of London, London, United Kingdom
proof paradigms. Responsibilities: Lead the full-stack architectural design and implementation of biometric identity verification solutions spanning React web applications, Swift iOS SDKs, and Kotlin Android SDKs Drive technical strategy and roadmap development for the Biometrics platform, ensuring alignment with emerging industry standards including NIST FRTE and FIDO Alliance … biometric data protection and zero-knowledge proof integration Contribute to design of unified SDK architecture that provides consistent developer experience across React, Swift, and Kotlin platforms Drive the development of real-time biometric liveness detection capabilities with sub-second response times and 99.9% accuracy Basic Qualifications, Skills & Experience Bachelor ...