22 of 22 Remote/Hybrid Kotlin Jobs in London

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

Hiring Organisation
Transreport
Location
London Area, 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 ...

Contract Senior Backend Engineer

Hiring Organisation
Formula
Location
City of London, London, United Kingdom
them scale up their AI platform and make a real impact. They are looking for an engineer with strong commercial use of either Java, Kotlin or Scala and proficiency with Python to help modernise their codebase. Responsibilities: Build and scale backend systems for AI-driven automation products Collaborate with ...

Senior Software Engineer

Hiring Organisation
Creo Recruitment
Location
City of London, London, United Kingdom
communication skills with the ability to influence and mentor Python Experience is preferred - though experience with similar languages are a plus e.g. Clojure, Rust, Kotlin, Scala, Golang. AWS Experience (Hands-on work with GCP/Azure is okay too) BSc in Computer Science Why this role stands out: High ...

Senior Software Engineer - Front End

Hiring Organisation
mkodo
Location
London, England, United Kingdom
areas of depth may include one or more of: Web/Front-end engineering Java/AWS backend and distributed systems React Native Android (Kotlin) iOS (Swift) Successful candidates demonstrate deep expertise in at least one of these areas while maintaining practical experience and willingness to work across others. … Software Engineer or equivalent. Deep expertise in at least one of: Modern web/front-end engineering (TypeScript/JavaScript frameworks) React Native Android (Kotlin) iOS (Swift) Java/AWS backend engineering and distributed systems Demonstrated ability to work across multiple parts of the stack. Strong understanding of modern ...

Head of Software Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 ...

Head of Software Engineering

Hiring Organisation
Morgan Philips Group
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
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 ...

Head of Software Engineering

Hiring Organisation
Morgan Philips Specialist Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
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 ...

Backend Software Engineer Kotlin Java Spring Boot

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
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)

Hiring Organisation
Morgan Philips Specialist Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
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 ...

Java + Kotlin Engineer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75,000
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 ...

Android Developer (Remote)

Hiring Organisation
Joveo Ai
Location
East London, London, United Kingdom
seekers and hiring professionals on the world's most-used mobile platform. Key Responsibilities: - Design and develop features for Joveo's Android application in Kotlin - Implement responsive, accessible UI following Material Design guidelines - Integrate mobile features with backend APIs and real-time data services - Write unit and instrumented tests … stability - Optimize performance, battery usage, and memory footprint - Collaborate with product, design, and backend teams in agile cycles Required Skills & Qualifications: - Strong proficiency in Kotlin and the Android SDK - Experience publishing and maintaining apps on the Google Play Store - Solid understanding of Android architecture patterns (MVVM, Clean Architecture) - Familiarity ...

Android Developer (Remote)

Hiring Organisation
Joveo Ai
Location
Central London / West End, London, United Kingdom
seekers and hiring professionals on the world's most-used mobile platform. Key Responsibilities: - Design and develop features for Joveo's Android application in Kotlin - Implement responsive, accessible UI following Material Design guidelines - Integrate mobile features with backend APIs and real-time data services - Write unit and instrumented tests … stability - Optimize performance, battery usage, and memory footprint - Collaborate with product, design, and backend teams in agile cycles Required Skills & Qualifications: - Strong proficiency in Kotlin and the Android SDK - Experience publishing and maintaining apps on the Google Play Store - Solid understanding of Android architecture patterns (MVVM, Clean Architecture) - Familiarity ...

Staff Software Engineer Kotlin Java JVM

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Staff Software Engineer/Developer (Kotlin Java JVM) Hybrid WFH to £120k Would you like to progress your career in an impactful hands-on Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management … with the CTO on the overall design and architecture of the products' tech stack, working on Greenfield applications. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.js on the front end. You'll be hands-on with architecture, design and coding, including ...

Backend Software Engineer Kotlin Java Spring Boot

Hiring Organisation
Client Server
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 Annual
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 ...

Senior Mobile Engineer (React Native + Android)

Hiring Organisation
Transreport
Location
London Area, United Kingdom
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 ...

Software Engineer

Hiring Organisation
Understanding Recruitment
Location
London Area, United Kingdom
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 ...

QA Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £65,000 per annum
consistent. Responsibilities include expanding automated test suites, reducing manual testing, and performing smoke, regression, functional and API testing. The tech stack includes Java/Kotlin, Selenium/Selenide or Playwright, TestNG/JUnit, RestAssured, Feign, Postman, SQL, Sentry, Elasticsearch, and performance tools like JMeter or Gatling. You will also … tools to speed up script development and boost testing efficiency. Drive quality across a cutting-edge microservices platform by leading automation with Java/Kotlin, modern UI/API testing tools and AI-powered efficiency, apply now. ...

Techncial Lead

Hiring Organisation
Uniting Ambition
Location
London, United Kingdom
Employment Type
Permanent
Decide when to use hybrid vs fully native approaches Lead architecture, spikes, and proof-of-concepts Define integration patterns between React Native, Swift, and Kotlin Set standards for packaging, versioning, and native module bridging Partner with iOS/Android architects on cross-platform design decisions Drive experimentation with WebView … What You Bring Strong production experience with React Native at scale Excellent JavaScript/TypeScript and modern React knowledge Working knowledge of Swift and Kotlin Experience integrating React Native into native mobile apps Strong understanding of mobile performance and platform constraints Experience in complex, multi-team engineering environments Bonus ...

Back End Engineer (Java)

Hiring Organisation
Neulinx
Location
City of London, London, United Kingdom
Backend Engineer - Fintech SaaS Location - Central London hybrid, 1 day a week in the office Tech stack - Java, Kotlin, Spring Boot Neulinx has partnered with a growing fintech SaaS startup that’s transforming accounting through automation and AI. They’re now looking to hire a Backend Engineer to join … improve core backend systems powering the platform. This is a hands-on backend role in a collaborative, product-led environment. Key skills Java Kotlin Spring Boot Additional desirable experience AWS MySQL OpenSearch Ruby on Rails Salary & Benefits • Up to £75k depending on experience • Share options from ...

Staff Software Engineer Kotlin Java JVM

Hiring Organisation
Client Server
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Staff Software Engineer/Developer (Kotlin Java JVM) Hybrid WFH to £120k Would you like to progress your career in an impactful hands-on Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management ...

Full Stack Engineer

Hiring Organisation
CBTS
Location
London Area, United Kingdom
Card Company Location: AMEX London Victoria 3 days/week, 2 days/week WFH Years of Exp: 3-9 years Skills: Full Stack, Kotlin (essential), TypeScript (essential), CI/CD, Java £25-£40/hr depending on experience and assessment level, Inside IR35 Visa sponsorship is not available. … Strong fundamentals of Computer Science to scale developments. Excellent communication & interpersonal skills. Creative and a good team worker. Kotlin (or strong Java) & TypeScript mainly – full stack ideally. Fundamentals are very important. Data structures, algorithms & system designs. Online test will be given in the first instance. Successful candidates will ...

Java + Kotlin Engineer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 Annual
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 click apply for full ...