376 to 400 of 427 Permanent Kotlin Jobs

Mobile Developer – Fully Remote | Up to £105k | React Native, Swift, Kotlin Here at Venchr, we are seeking a Mobile Developer with strong expertise in React Native to build high-quality, cross-platform applications that deliver a seamless experience on both iOS and Android. You’ll be contributing to innovative solutions that support the luxury lifestyle and yachting sector. Key … + Android) Solid grasp of mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 🌍 100% remote flexibility — work from anywhere 💸 Up to £105k salary 🚤 The chance to work on More ❯

Mobile Developer – Fully Remote | Up to £105k | React Native, Swift, Kotlin Here at Venchr, we are seeking a Mobile Developer with strong expertise in React Native to build high-quality, cross-platform applications that deliver a seamless experience on both iOS and Android. You’ll be contributing to innovative solutions that support the luxury lifestyle and yachting sector. Key … + Android) Solid grasp of mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 🌍 100% remote flexibility — work from anywhere 💸 Up to £105k salary 🚤 The chance to work on More ❯

and microservices architecture Strong problem-solving skills and attention to detail Experience with version control systems (Git) Bachelor's degree in Computer Science or related field Primary Skills: Java, Kotlin Secondary Skills: Spring Boot, NodeJS, REST, SQL (nice to have) Key Topics: Open Requisitions for Back End Engineers: Have skill set 5+ Years skills in Java, and Kotlin due to the back end-focused road map. Tech Stack Priority The primary focus should be on Java, Node, and Kotlin, while other languages like Scala, Spring, and SQL are nice to have but not essential. Work Environment and Location- The team works in two-week sprints using agile methodology and scrum processes. The positions are initially for More ❯

Are you interested in working in Tech for Good? Have you got experience working with Kotlin, or are keen to work with Kotlin? Principal Software Engineer – Clean Energy for EV Charging 💰 Up to £150k + bonus + benefits 📍 Hybrid in London 2 days per week We’ve just partnered with an industry leading GreenTech, on a mission to … the charging of electric vehicles. Due to exciting projects in the pipeline, they are looking to grow their team with Principal Software Engineers who have experience in the following: Kotlin software development (They are also open to Core Java experience, as long as you are happy to work with Kotlin) AWS or other cloud experience Microservices architecture Have More ❯

Are you interested in working in Tech for Good? Have you got experience working with Kotlin, or are keen to work with Kotlin? Principal Software Engineer – Clean Energy for EV Charging 💰 Up to £150k + bonus + benefits 📍 Hybrid in London 2 days per week We’ve just partnered with an industry leading GreenTech, on a mission to … the charging of electric vehicles. Due to exciting projects in the pipeline, they are looking to grow their team with Principal Software Engineers who have experience in the following: Kotlin software development (They are also open to Core Java experience, as long as you are happy to work with Kotlin) AWS or other cloud experience Microservices architecture Have More ❯

the Head of Engineering and our wider engineering team. Take shared ownership of our backend architecture, ensuring performance, scalability, and reliability. Build and maintain high-quality code base using Kotlin, Docker and microservice architecture. Contribute to a culture of excellence by reviewing code, mentoring peers, and sharing knowledge with the team. Work with DevOps team to improve monitoring, supportability … and reliability of backend services Actively participate in team discussions, explaining your solutions clearly while remaining open to feedback and suggestions. Requirements: 8+ years experience as a backend engineer Kotlin (or Java) and Spring Boot knowledge Standard Kotlin (Java) library & best practices Design patterns Performance optimisations PostgreSQL knowledge AI-savviness, curiosity and enthusiasm - proven optimisation of your workflows More ❯

systems (finance/trading a plus) Strong Linux and command-line skills Knowledge of market data, order flows, and related protocols Ability to read and troubleshoot code (C++, JavaScript, Kotlin) SQL proficiency and familiarity with Git/CI-CD Experience with AWS, Prometheus, Grafana, RabbitMQ Tech Stack Backend: Kotlin, Node.js, TypeScript, RabbitMQ Cloud: AWS Databases: MySQL Monitoring: Prometheus More ❯

systems (finance/trading a plus) Strong Linux and command-line skills Knowledge of market data, order flows, and related protocols Ability to read and troubleshoot code (C++, JavaScript, Kotlin) SQL proficiency and familiarity with Git/CI-CD Experience with AWS, Prometheus, Grafana, RabbitMQ Tech Stack Backend: Kotlin, Node.js, TypeScript, RabbitMQ Cloud: AWS Databases: MySQL Monitoring: Prometheus More ❯

systems (finance/trading a plus) Strong Linux and command-line skills Knowledge of market data, order flows, and related protocols Ability to read and troubleshoot code (C++, JavaScript, Kotlin) SQL proficiency and familiarity with Git/CI-CD Experience with AWS, Prometheus, Grafana, RabbitMQ Tech Stack Backend: Kotlin, Node.js, TypeScript, RabbitMQ Cloud: AWS Databases: MySQL Monitoring: Prometheus More ❯

systems (finance/trading a plus) Strong Linux and command-line skills Knowledge of market data, order flows, and related protocols Ability to read and troubleshoot code (C++, JavaScript, Kotlin) SQL proficiency and familiarity with Git/CI-CD Experience with AWS, Prometheus, Grafana, RabbitMQ Tech Stack Backend: Kotlin, Node.js, TypeScript, RabbitMQ Cloud: AWS Databases: MySQL Monitoring: Prometheus More ❯

systems (finance/trading a plus) Strong Linux and command-line skills Knowledge of market data, order flows, and related protocols Ability to read and troubleshoot code (C++, JavaScript, Kotlin) SQL proficiency and familiarity with Git/CI-CD Experience with AWS, Prometheus, Grafana, RabbitMQ Tech Stack Backend: Kotlin, Node.js, TypeScript, RabbitMQ Cloud: AWS Databases: MySQL Monitoring: Prometheus More ❯

Senior Backend Engineer Remote across UK & Europe Tech: Kotlin, React, Postgres and AWS Theyve built something that makes accountants say, I didnt think this was even possible. And theyre just getting started. This isnt maintenance work or fixing spaghetti left by the last engineer. Its new product build. Youll be delivering features, reducing tech debt, and shaping the backend … they need now are backend engineers who can bring structure, high standards, and a bit of backbone. People wholl push back when something doesnt make sense. The stack is Kotlin on AWS, but if youve used any OO language (Java, Python, Ruby, C#, PHP) and are open to learning, thats fine. Theres a monolith (by design), organised into modules. … workflow as much as you want, they actively encourage it You should apply if you: Have strong experience building highly scalable backend systems with OOP languages Have experience with Kotlin or want to learn it. Write sensible code and tests without disappearing into theory Can communicate clearly in a remote setup Want to be part of something early but More ❯

Senior Backend Engineer – Remote across UK & Europe Tech: Kotlin, React, Postgres and AWS They’ve built something that makes accountants say, “I didn’t think this was even possible.” And they’re just getting started. This isn’t maintenance work or fixing spaghetti left by the last engineer. It’s new product build. You’ll be delivering features, reducing … now are backend engineers who can bring structure, high standards, and a bit of backbone. People who’ll push back when something doesn’t make sense. The stack is Kotlin on AWS, but if you’ve used any OO language (Java, Python, Ruby, C#, PHP) and are open to learning, that’s fine. There’s a monolith (by design … workflow as much as you want, they actively encourage it You should apply if you: Have strong experience building highly scalable backend systems with OOP languages Have experience with Kotlin or want to learn it. Write sensible code and tests without disappearing into theory Can communicate clearly in a remote setup Want to be part of something early but More ❯

defects, track resolutions, and communicate testing results to stakeholders. Automation and Process Optimization Design and implement advanced test automation frameworks for UI and API testing using tools such as Kotlin, Selenium, TestNG, Maven, and GitLab. Optimize automation pipelines to enhance test efficiency and increase coverage. Establish and promote best practices in automation and testing across the QA team. Identify … of hands-on experience in software testing, with a strong focus on automation and API testing. Hands-on experience with different testing/development tools and frameworks such as Kotlin, Selenium, TestNG, Maven, and GitLab. Expertise in creating detailed test strategies, test cases, and comprehensive reports. Solid understanding of Agile methodologies and test-driven development (TDD) processes. Experience with 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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

bonus + equity 📍 Location: Hybrid in 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 assist in the global … by providing affordable access to 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 tech companies This is a … very comprehensive, generous benefits package: Equity Bonus Pension Private healthcare Life assurance Income protection Flexible working (work from home 3x per week) If you'd love to work with Kotlin on impactful projects, while taking the next step in your career, apply now for this exciting Software Engineer opportunity! Please note : Due to compliancy reasons, we will only be More ❯

bonus + equity 📍 Location: Hybrid in 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 assist in the global … by providing affordable access to 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 tech companies This is a … very comprehensive, generous benefits package: Equity Bonus Pension Private healthcare Life assurance Income protection Flexible working (work from home 3x per week) If you'd love to work with Kotlin on impactful projects, while taking the next step in your career, apply now for this exciting Software Engineer opportunity! Please note : Due to compliancy reasons, we will only be More ❯

bonus + equity 📍 Location: Hybrid in 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 assist in the global … by providing affordable access to 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 tech companies This is a … very comprehensive, generous benefits package: Equity Bonus Pension Private healthcare Life assurance Income protection Flexible working (work from home 3x per week) If you'd love to work with Kotlin on impactful projects, while taking the next step in your career, apply now for this exciting Software Engineer opportunity! Please note : Due to compliancy reasons, we will only be More ❯

bonus + equity 📍 Location: Hybrid in 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 assist in the global … by providing affordable access to 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 tech companies This is a … very comprehensive, generous benefits package: Equity Bonus Pension Private healthcare Life assurance Income protection Flexible working (work from home 3x per week) If you'd love to work with Kotlin on impactful projects, while taking the next step in your career, apply now for this exciting Software Engineer opportunity! Please note : Due to compliancy reasons, we will only be More ❯

are looking to hire a Senior Android Engineer to help solidify their current mobile capabilities as well as work on new projects for new MVPs. Skills Required : Android with Kotlin MVVM Architecture Koin - Dependency Injection Ktor - we use it for websockets Retrofit - client http requests Kotlin Serialization XML - for the views with partial data binding - we're trying … to migrate from it completely. View Binding Kotlin Flows. Coroutines. Unit Testing JUnit4 Mockk More ❯

are looking to hire a Senior Android Engineer to help solidify their current mobile capabilities as well as work on new projects for new MVPs. Skills Required : Android with Kotlin MVVM Architecture Koin - Dependency Injection Ktor - we use it for websockets Retrofit - client http requests Kotlin Serialization XML - for the views with partial data binding - we're trying … to migrate from it completely. View Binding Kotlin Flows. Coroutines. Unit Testing JUnit4 Mockk More ❯