1 to 25 of 29 Kotlin Jobs in London

Engineer Neo4j Aura (Cloud Graph Database)

Hiring Organisation
UNITECH
Location
London, UK
Employment Type
Full-time
Neo4j, specifically Neo4j Aura • Expert knowledge of Cypher and graph data modelling • Experience with cloud platforms (AWS, Azure, or GCP) • Backend development experience (Java, Kotlin, Python, or Node.js) • Understanding of distributed systems and database performance tuning • Familiarity with CI/CD, containerisation, and infrastructure-as-code Desirable/Nice ...

Principal Software Engineer

Hiring Organisation
TPXImpact Holdings Plc
Location
East London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
software engineering, with a focus on large-scale, complex systems. Polyglot engineer comfortable working across multiple languages and frameworks (weve used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React and Next.js to name a few). Passion for learning new technologies and helping others do the same. Proven track ...

Senior Android Developer

Hiring Organisation
Digital Waffle
Location
City of London, London, United Kingdom
debugging to deployment and optimisation. Influence technical decisions and shape the future of our mobile strategy. What We’re Looking For Strong experience in Kotlin and Android app development. Proven track record building enterprise-grade Android applications. Deep understanding of mobile best practices, including UI/UX, testing ...

Technical Lead

Hiring Organisation
Formula Recruitment
Location
London Area, 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 ...

Android Developer - Test Automation

Hiring Organisation
Arrows
Location
London, England, United Kingdom
Rate: £600 INSIDE IR35 Office Days: Hybrid (London) Contract Length: 6-month initial contract Start date: ASAP What You'll Be Doing Developing Kotlin-based Android features for a video streaming SDK Designing and implementing testable, maintainable Android code Integrating Android components with existing test frameworks Improving and expanding … Roku teams on cross-platform quality Helping define engineering and testing best practices What We're Looking For 4+ years Android development experience (Kotlin, Gradle, Android Studio) Strong experience writing and maintaining Android tests Deep understanding of testable architecture and automation principles Comfortable owning features end-to-end Strong ...

Back End Developer

Hiring Organisation
RevTech
Location
City of London, London, United Kingdom
Spring Boot you'd be shaping solutions for real business needs and working in a highly collaborative team. They also have some microservices in Kotlin, so this is a great chance to pick that up as well! What they need: Someone who can shape solutions for business needs Technical … Boot Works well in a highly collaborative team Key details: London based, hybrid working Salary up to £85k Tech Stack: Java, Spring Boot, AWS, Kotlin ...

Lead Software Engineer, React Native

Hiring Organisation
Travelex
Location
City of London, London, United Kingdom
tools such as Vitest, Jest, React Native Testing Library, Maestro, Detox Nice to have: Experience with iOS (Objective-C, Swift) or Android (Java, Kotlin) native development. Experience with mobile release processes for the App Store and Play Store. Experience with performance optimisation and profiling in React Native. Familiarity with ...

Senior Backend Software Engineer

Hiring Organisation
algo1
Location
City of London, London, United Kingdom
such as CoPilot or Cursor a collaborator and accelerator of development. Nice to Have: Experience in web or Android development (e.g. Javascript, Typescript, React.js, Kotlin) Worked with real-time data collection and/or processing Worked in an IoT or Edge-oriented architectures Experience or knowledge in retail ...

Senior Android developer - London - Perm

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
London, United Kingdom
Employment Type
Permanent
Salary
£70,000
technical discussions Contribute to improving app performance, stability, and UX Essential Skills & Experience Commercial experience as a Native Android Developer Strong experience with Kotlin (Java experience also beneficial) Solid understanding of Android SDK and modern Android development practices Experience with common Android architectures (MVVM or similar) Experience integrating RESTful ...

Computer Vision & SDK Development Lead

Hiring Organisation
YEO Messaging
Location
London Area, United Kingdom
looking for an experienced Kotlin & Swift Developer with strong computer vision experience to design, build, and maintain a high-performance Software Development Kit (SDK) used in security-critical mobile applications. This role sits at the intersection of mobile engineering, applied computer vision, and SDK architecture , and will play … third-party teams and partners. Key Responsibilities SDK Design & Development Design and develop a cross-platform mobile SDK (iOS & Android) using Swift and Kotlin Create clean, modular, well-documented SDK APIs for external developers Ensure the SDK is easy to integrate, versioned correctly, and backward compatible Own the full ...

Principal/Lead Android Engineer - Mobile Banking

Hiring Organisation
Vertus Partners
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 95,000 - 120,000 Annual
team management experience Ability to influence cross-functional teams and senior stakeholders Extensive experience building complex Android applications System design and architecture capabilities Kotlin, Java, and Jetpack Compose Experience with Agile methodologies, TDD, and CI/CD practices This is an excellent opportunity to help shape the future ...

Senior Android Developer

Hiring Organisation
Digital Waffle
Location
City of London, London, United Kingdom
support delivery of high-quality products. Role: Senior Android Developer Location: London, UK Total comp: £70-£80k Requirements for the role: Strong experience in Kotlin and Android app development. Proven track record of building Enterprise level Android apps. Deep understanding of mobile development best practices, including UI/ ...

Automation Specialist

Hiring Organisation
83zero
Location
London Area, 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 ...

Site Reliability Engineer

Hiring Organisation
Block MB
Location
London Area, United Kingdom
cloud engineering. Strong understanding of distributed systems, performance and failure modes, and experience with observability tooling. Comfortable with several languages (e.g. Python, Java, Kotlin, TypeScript) and technologies like Kafka, Flink, Redis and clustered Postgres. Familiarity with networking concepts (routing, load balancing, service‐to‐service communication); bonus points for leading ...

Product Engineer (Android)

Hiring Organisation
Granola
Location
City of London, London, United Kingdom
role, you will: Build Granola for Android from the ground up, owning every layer from architecture to the final shipped experience Architect a modern Kotlin + Jetpack Compose codebase that feels native to Android from day one Bring Granola's audio magic, transcription, chat, and next-generation AI features … background looks something like: You've shipped polished Android apps end-to-end, from greenfield architecture to launch and iteration You're fluent in Kotlin, at home in Jetpack Compose, and willing to dive into lower-level Android frameworks when needed You've built (or are excited to build ...

Mid Level Full Stack Developer/Architect (Systems & Mobile)

Hiring Organisation
Fidra Analytics
Location
London Area, United Kingdom
care about 9-5 fixed hours; we care about delivery and excellence. One of our current projects requires deep expertise in Android (Kotlin). While we take on diverse projects across various stacks, your immediate priority will be owning and architecting a performance-critical mobile data collection ecosystem. This … that afternoon you might be building a slide deck for a client pitch or debugging a Docker deployment. What You’ll Do Architect & Build (Kotlin focus): Take full ownership of our high-performance Android data collection app. Expert-level Kotlin is essential here. Technical Decision Making: Choose ...

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 ...

Senior Android Engineer - Hybrid, £100K

Hiring Organisation
Oliver Bernard
Location
London Area, United Kingdom
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 ...

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 ...

Junior Backend Software Engineer

Hiring Organisation
algo1
Location
London, UK
Employment Type
Full-time
tools such as CoPilot or Cursor a collaborator and accelerator of development. Experience in frontend or Android development (e.g. Javascript, Typescript, React.js, Kotlin ...

Principal Software Engineer

Hiring Organisation
TopTek Talent
Location
South London, UK
Employment Type
Full-time
continuous experience in a Senior Staff, Principal or Architect capacity. Back-End Mastery: Extensive professional background working with the JVM ecosystem (specifically Java or Kotlin). Modern Web & Orchestration: Ideally you will have proficiency in JavaScript frameworks and experience with workflow engines. Cloud-Native Data: Solid experience architecting ...

Junior IT Support

Hiring Organisation
Northend Solutions ltd
Location
Barnet, Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£26,000 - £35,000 per annum
Must have flexibility/willingness to work on-call hours (both weekday and weekend). Ideally, some software development knowledge (SharePoint, Python, Java or Kotlin) as down the line there will be specifically related projects. Assist with writing of end user and IT documentation as required. Role-based ...

Senior Android Developer

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Senior Android Developer Permanent Hybrid (3-4 days in office) About the Company We're working with an innovative technology organisation that builds intelligent solutions to help global enterprises and regulated institutions manage risk, secure ...

Automation Assurance Specialist

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
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 ...

Principal Python Engineer

Hiring Organisation
Ncounter
Location
East London, London, 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 ...