1 to 25 of 35 Permanent Kotlin Jobs in London

twice a week. About you: You have advanced full stack development skills including TypeScript backends, microservices, APIs, React and also ideally React Native or Kotlin for mobile development You have a good understanding of distributed systems, RDBMS (Oracle) and data modelling trade-offs You have a good understanding ...

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 ...

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 ...

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. ...

continuous improvement of development practices and tools. Stay updated with emerging technologies and recommend their adoption where applicable. Profile Must haves: Java Kotlin Spring Boot Nice to haves: Terraform Financial Services AWS Job Offer 9 month FTC Contributory personal pension plan: - Minimum: Employee 2% and Employer 7%. Employer ...

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 ...

Experience working in a data-centric organisation Desirable Skills React front-end development React. Native cross-platform mobile application development Android development (Java/Kotlin/Dagger2) Image Processing, ANPR (automated number plate recognition) and OCR library implementations Exposure to process modelling, for example in BPMN IoT relay control ...

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 ...

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 ...

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 ...

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 ...

understanding of key AWS services listed below:- S3- Athena- Glue- Lambda- DynamoDB- OpenSearch- CloudFormation- API Gateway- ECS- CloudWatch Programming and Core Services Fluency in Kotlin/Java, NodeJS, TypeScript SQL Databases Experience with SQL, and NoSQL databases such as DynamoDB Security strong understanding of security principles within ...

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 ...

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 ...

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 ...

commercial experience in software test automation within modern engineering teams. * Confident testing both frontend web applications and backend APIs. * Hands-on experience with Java, Kotlin, TypeScript or Python in an automation context. * Strong understanding of HTML, CSS, JavaScript and web application behaviour. * Experience building UI tests with tools such ...

deterministic agents You’ll be defining what “good” reliability looks like from day one. ⚙️ Tech Snapshot GCP | Terraform | Cloud Run | Kubernetes (planned) | Python | Kotlin | GitHub Actions | Temporal | Cloud Monitoring & Logging 👀 What They’re Looking For 4+ years in DevOps/SRE/Platform Engineering Strong Terraform & Infrastructure-as-Code ...

Mobile Engineer/Developer (KMP Kotlin Multiplatform iOS Android Native) London/WFH to £75k Are you a technologist Mobile Engineer with KMP development experience? You could be progressing your career in a hands-on Mobile Engineer role at a hugely successful, global health/wellness company. ...

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 ...

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 ...

Leading feature delivery and contributing to technical strategy. Collaborating closely with designers and product managers to ship beautiful, intuitive Android experiences. Writing clean, maintainable Kotlin using Jetpack Compose as a first-class citizen. Championing engineering best practice - pairing, mobbing, TDD, continuous delivery. Designing secure, scalable solutions with performance … thinking into the team. Mentoring and supporting fellow engineers to level up together. What we're looking for Strong experience building Android apps with Kotlin and Jetpack Compose . Excellent understanding of modern app architecture and design patterns. Passion for agile delivery and releasing value early and often. Experience ...

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 ...

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 ...

ecosystem , including: Scala (core backend) AKKA framework (with migration toward PEKKO) Gradual migration toward Java/Spring Boot Node.js for integrations and connectors Some Kotlin usage The environment is language-agnostic in mindset. Strong backend fundamentals matter more than experience across every language. You’ll be working on complex … support continued platform and product growth. What We’re Looking For ✅ 5+ years backend engineering experience ✅ Strong JVM ecosystem experience (Java, Scala, or Kotlin) ✅ Strong SQL and relational database experience ✅ Experience working with complex systems and large datasets ✅ Comfortable working in scale-up environments with shifting priorities ✅ Proactive, problem ...

QA Automation Engineer London - 2 days in the office Up to £60,000 plus benefits This is an exciting opportunity to join a high-growth technology environment where quality engineering plays a central role. You ...