26 to 50 of 54 Kotlin Jobs in the City of London

top of industry trends and Android advancements and adopt the latest best practices. What We’re Looking For: At least 4 years experience as an Android Developer. Expertise in Kotlin and Jetpack Compose . Please submit your CV to find out more. More ❯

platform – the most highly funded project in the firm. This role applies to a developer using any programming language as they use a range from Java/Scala/Kotlin to Python/C#/F# and C++. Additionally, this is a great opportunity to pick up any new technologies as the ideal candidate is someone who can cross More ❯

in fintech or agency/consulting environments Strong background in designing microservice-based systems Comfortable working in small, highly collaborative teams Proficiency with 1 or more modern backend languages: Kotlin, Python, Java, Rust, Go Bonus: experience with payments, digital banking, or financial infrastructure More ❯

for T-Shaped profile with experience in following languages and technologies like Java, J2EE, Springboot, React, Angular, CCS, CSS pre-processors and Node.js. Secondary Skills hands-on experience on Kotlin and C# will be an added advantage. CRM tool such as Salesforce knowledge will be an added advantage. Knowledge of modern DevOps CI/CD practices with relation to More ❯

South East/Remote. Salary: up to £95,000 + + competitive benefits, depending on experience. Requirements: Experience building and shipping large scale applications Knowledge of Java AND OR Kotlin A solid understanding of AWS OR GCP Experience with TDD and pain programming. Experience with third-party libraries and APIs. Experience leading engineering decisions in a complex environment and More ❯

South East/Remote. Salary: up to £95,000 + + competitive benefits, depending on experience. Requirements: Experience building and shipping large scale applications Knowledge of Java AND OR Kotlin A solid understanding of AWS OR GCP Experience with TDD and pain programming. Experience with third-party libraries and APIs. Experience leading engineering decisions in a complex environment and More ❯

. Experience with React or Vue 2 is also very relevant. Bun , or familiarity with Node and package managers like pnpm, Yarn, or npm. Android and iOS , using Kotlin and Swift. Mayflower is acting as an Employment Agency in relation to this vacancy. More ❯

software architecture, cloud, and software engineering standard methodologies Great leadership and coaching skills with the ability to develop engineering colleagues Tech stack React (Next.js/Typescript), GraphQL Federation, Java, Kotlin, Micronaut, Azure Cloud, GitHub, New Relic and Dynatrace Everyone’s welcome We are ambitious about the future of retail. We’re disrupting, innovating and leading the industry into a More ❯

Social network you want to login/join with: Principal Engineer (Java/Kotlin), London (City of London) Client: Xcede Location: London (City of London), United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 2 Posted: 16.06.2025 Expiry Date: 31.07.2025 Job Description: Role: Principal Engineer Stack: Java, Kotlin, AWS Location: London, Hybrid (2-4x … Engage with clients to gather requirements and understand problems Set best practices and elevate the engineering team's capabilities What background are they looking for? Experience with JVM/Kotlin, Typescript, and AWS Experience building and designing large-scale engineering platforms Comfortable working with both technical and non-technical stakeholders 3+ years as a Principal/Staff Engineer or More ❯

Role: Principal Engineer Stack: Java, Kotlin, AWS Location: London, Hybrid (2-4x Month) Salary: Up to £120k-£140k Xcede are partnering with a FinTech Scale up who are building out a brand new SaaS platform integrating directly with major banking intuitions. What will you do as a Principal Engineer? You will be leading architectural discussions and acting as … problems that need to be solved Setting best practices and elevating capabilities of the engineering team What background are they looking for? Experience across the core stack (JVM/Kotlin, Typescript and AWS) Background building and designing large scale engineering platforms Comfortable working with both technical and non-technical stakeholders 3+ years as a Principal/Staff Engineer or More ❯

looking for a talented mid level Android Developer to a global media company About the Role: You’ll be working on delivering engaging features for popular apps built with Kotlin, with upcoming new exciting features. You will join a team that values technical excellence, creativity, and a positive work culture. What You’ll Do: Develop and improve Android applications … using Kotlin Collaborate with the team to plan and deliver regular monthly updates Tackle technical debt while helping to innovate new features Ensure your app delivers the best possible experience to users Ideal Candidate: Solid experience in Android development with Kotlin Clean, efficient code writing and attention to detail Passionate about consumer app development Excellent communicator with a More ❯

improvement. This role focuses on technical leadership, not people management. You’ll be someone who... Has commercial experience with either Python or a JVM language (Java/Scala/Kotlin) on the back-end, and React/TypeScript on the front-end. You probably lean towards back-end experience. May be a Senior Engineer ready to step up, an More ❯

to align end-user requirements with effective technical solutions. - Promote best practices, minimize inefficiencies, and introduce emerging technologies to enhance team capabilities. Required Skills and Experience: - Professional experience with Kotlin, Java or Python and React - Proven experience as an Engineer working across multiple squads. - Demonstrated ability to drive technical and behavioural improvements across teams. - Expertise in leading architectural design More ❯

native features as opposed to awkward polyfills or bloated libraries. Our Android and iOS apps are built using their respective native frameworks, however we have plans to explore using Kotlin Multiplatform to abstract some of the shared backend logic. Key Responsibilities Technical Leadership: Take full technical ownership of solutions developed for the Australian market, driving architectural decisions and ensuring More ❯

Senior/Principal Kotlin Engineer - Contract Outside IR35 London 1-2 days per week in London £650-£750 per day - negotiable We're after an experienced Java/Kotlin engineer on a contract basis (outside IR35) who wants to solve hard technical problems, with experience in building data-intensive, high-throughput systems. This is a small, high-impact … bank Leverage big data technologies, distributed caches, and modern data stores Solve challenging engineering problems at scale, ensuring reliability and performance under heavy load. What you'll need: Strong Kotlin experience is mandatory Background in highly concurrent, data intensive systems is mandatory Knowledge of distributed systems and scalable data architectures is mandatory Flink/Trino or similar preferred not More ❯

Social network you want to login/join with: Senior Software Engineer - React OR Vue + TypeScript/Kotlin - £90,000 - Renewable Energy, London (City of London) Client: Opus Recruitment Solutions Location: London (City of London), United Kingdom Job Category: Other EU work permit required: Yes Job Views: 3 Posted: 16.06.2025 Expiry Date: 31.07.2025 Job Description: A leading company … open, and team-oriented culture that encourages innovation and forward thinking. They are seeking a Senior Software Engineer with solid experience in Vue/TypeScript on the frontend and Kotlin on the backend. Experience with TDD/BDD in cross-functional teams is highly advantageous. This role requires presence in their London office for 2 days a month and More ❯

Backend Engineer (Kotlin) – Hybrid (London) – Up to £95k 💰 Join a fast-growing cleantech company as a Backend Kotlin Engineer that is driving the global shift to clean, affordable energy through an integrated hardware and software smart-grid platform focused on residential EV charging. By leveraging data, AI, and strong industry partnerships, they connect cars, chargers, people, and energy … providers to place consumers at the heart of the energy transition. 🚀 What You'll Do: 🧱 Contribute to scalable backend infrastructure built in Kotlin ✅ Write clean, maintainable, tested code in production 🧠 Shape tech strategy and architecture with new ideas and tools 🤝 Work closely with Product Owners and team members to deliver value 👨‍🏫 Mentor junior developers and support their growth 🧠 What … You Bring: 💻 Solid commercial experience in Kotlin (Open to those with a java background) 🌱 Experience with Spring Boot , or similar frameworks (e.g. Ktor) 🧩 Strong API-first mindset and clean coding practices 🧪 Knowledge of Agile, peer reviews, pair programming, and test-driven development 📐 Understanding of software design principles (SOLID, design patterns, etc.) 🎯 Experience turning stakeholder needs into scalable solutions 🎁 Perks More ❯

London who will play a key role in building high-quality mobile experiences across platforms. What We’re Looking For: Shipped applications on both Android and iOS. Expertise in Kotlin and understanding of Swift. Kotlin Multiplatform. A deep understanding of mobile architecture patterns (e.g., MVVM, MVI) and a commitment to writing clean, maintainable, and testable code. Mobile Engineer More ❯

Mid/Senior Kotlin Developer – GreenTech £80k–£95k | Hybrid – London (2 days/week) We’re excited to be working with a high-growth GreenTech company that’s on a mission to make EV charging smarter for everyone. Backed by cutting-edge technology and a bold vision, they’re transforming the way drivers power their vehicles – aligning energy use … with the most efficient times to benefit both people and the planet. As a Kotlin Developer you will: Build and maintain backend infrastructure in Kotlin , using Spring Boot or Ktor Write clean, secure, well-tested code for API-first products Influence architecture, propose new tech, and shape technical direction Collaborate cross-functionally to deliver value iteratively Mentor teammates … and support hiring through technical interviews Stay current on industry trends and continuously improve how the team works A great Kotlin Developer will have: Solid Kotlin experience (or strong JVM) Familiarity with Spring Boot or similar frameworks Passion for scalable, API-led backend systems Strong grasp of software engineering principles (e.g. SOLID, design patterns) Clear communicator with the More ❯

London who will play a key role in building high-quality mobile experiences across platforms. What We’re Looking For: Shipped applications on both Android and iOS. Expertise in Kotlin and understanding of Swift. Kotlin Multiplatform. A deep understanding of mobile architecture patterns (e.g., MVVM, MVI) and a commitment to writing clean, maintainable, and testable code. #J More ❯

Principal Kotlin Developer – GreenTech Up to £150k | Hybrid – London (2 days/week) We’re excited to be working with a high-growth GreenTech company that’s on a mission to make EV charging smarter for everyone. Backed by cutting-edge technology and a bold vision, they’re transforming the way drivers power their vehicles – aligning energy use with … the most efficient times to benefit both people and the planet. As a Principal Developer you will: Build and maintain backend infrastructure in Kotlin , using Spring Boot or Ktor Write clean, secure, well-tested code for API-first products Influence architecture, propose new tech, and shape technical direction Collaborate cross-functionally to deliver value iteratively Mentor teammates and support … hiring through technical interviews Stay current on industry trends and continuously improve how the team works A great Principal Developer will have: Solid Kotlin experience (or strong JVM) Familiarity with Spring Boot or similar frameworks Passion for scalable, API-led backend systems Strong grasp of software engineering principles (e.g. SOLID, design patterns) Clear communicator with the ability to work More ❯

Multi-Threading. E-trading functionality, including low latency systems development. Experience scaling systems across different products. Other desirable skills include: FIX. Bond analytics, risk, pricing and curve building understanding. Kotlin More ❯

lead new squads focused on greenfield projects. They have a strong engineering culture in the London office, and as their Senior Developer, you’ll work with Java (17+), SpringBoot, Kotlin and NoSQL databases. They’ve got their own internal cloud and toolings using Prometheus and Grafana. As their Senior Developer, you’ll be: A key advocate for best coding More ❯

lead new squads focused on greenfield projects. They have a strong engineering culture in the London office, and as their Senior Developer, you’ll work with Java (17+), SpringBoot, Kotlin and NoSQL databases . They’ve got their own internal cloud and toolings using Prometheus and Grafana. As their Senior Developer, you’ll be: A key advocate for best More ❯

Senior Java/Kotlin Engineers Our client is looking for multiple Senior Java/Kotlin Engineers to work on a new project 3 days a week in London Candidates must be UK based, they will not provide sponsorship. Tech Stack - Java, Kotlin, TDD, Docker/Kubernetes. Salary - £120k - 140k + Pension More ❯