london (putney), south east england, united kingdom
TrueNorth®
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 ❯
next-gen in the "Secure Tech" focused industry — with real impact and purpose. Key responsibilities: React Native Developer – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing, and CI/CD pipelines. … re looking for: React Native Developer (Expo) – Secure Tech Ideally 4+ years’ experience with React Native (Expo SDK nice to have). Any experience of native module development in Kotlin/Swift would be great. Exposure to cryptographic principles or an interest in Encryption desirable. MIME standards, and OAuth2 nice to have. Hands-on experience with secure systems, testing More ❯
next-gen in the "Secure Tech" focused industry — with real impact and purpose. Key responsibilities: React Native Developer – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing, and CI/CD pipelines. … re looking for: React Native Developer (Expo) – Secure Tech Ideally 4+ years’ experience with React Native (Expo SDK nice to have). Any experience of native module development in Kotlin/Swift would be great. Exposure to cryptographic principles or an interest in Encryption desirable. MIME standards, and OAuth2 nice to have. Hands-on experience with secure systems, testing More ❯
next-gen in the "Secure Tech" focused industry — with real impact and purpose. Key responsibilities: React Native Developer – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing, and CI/CD pipelines. … re looking for: React Native Developer (Expo) – Secure Tech Ideally 4+ years’ experience with React Native (Expo SDK nice to have). Any experience of native module development in Kotlin/Swift would be great. Exposure to cryptographic principles or an interest in Encryption desirable. MIME standards, and OAuth2 nice to have. Hands-on experience with secure systems, testing More ❯
next-gen in the "Secure Tech" focused industry — with real impact and purpose. Key responsibilities: React Native Developer – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing, and CI/CD pipelines. … re looking for: React Native Developer (Expo) – Secure Tech Ideally 4+ years’ experience with React Native (Expo SDK nice to have). Any experience of native module development in Kotlin/Swift would be great. Exposure to cryptographic principles or an interest in Encryption desirable. MIME standards, and OAuth2 nice to have. Hands-on experience with secure systems, testing More ❯
london (city of london), south east england, united kingdom
Evermore
next-gen in the "Secure Tech" focused industry — with real impact and purpose. Key responsibilities: React Native Developer – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing, and CI/CD pipelines. … re looking for: React Native Developer (Expo) – Secure Tech Ideally 4+ years’ experience with React Native (Expo SDK nice to have). Any experience of native module development in Kotlin/Swift would be great. Exposure to cryptographic principles or an interest in Encryption desirable. MIME standards, and OAuth2 nice to have. Hands-on experience with secure systems, testing More ❯
platforms across asset classes Design pricing and risk logic, market data processing, and order handling Optimise data flow and system throughput under real-time constraints Implement core components in Kotlin (some C++ and legacy Python/Java) Engineer for reliability, testing, monitoring and rapid fault recovery What You'll Bring Solid command of CS fundamentals, algorithms, architecture, systems, likely … been a competitive programmer. Advanced experience in Kotlin or Java (Other languages considered C#/F#/C++) Deep familiarity with Linux environments and system-level APIs Experience with high-throughput, low-latency systems Ability to work independently and review code for correctness and clarity Finance experience not required, but curiosity helps Why Apply High-impact team with wide More ❯
platforms across asset classes Design pricing and risk logic, market data processing, and order handling Optimise data flow and system throughput under real-time constraints Implement core components in Kotlin (some C++ and legacy Python/Java) Engineer for reliability, testing, monitoring and rapid fault recovery What You'll Bring Solid command of CS fundamentals, algorithms, architecture, systems, likely … been a competitive programmer. Advanced experience in Kotlin or Java (Other languages considered C#/F#/C++) Deep familiarity with Linux environments and system-level APIs Experience with high-throughput, low-latency systems Ability to work independently and review code for correctness and clarity Finance experience not required, but curiosity helps Why Apply High-impact team with wide More ❯
platforms across asset classes Design pricing and risk logic, market data processing, and order handling Optimise data flow and system throughput under real-time constraints Implement core components in Kotlin (some C++ and legacy Python/Java) Engineer for reliability, testing, monitoring and rapid fault recovery What You'll Bring Solid command of CS fundamentals, algorithms, architecture, systems, likely … been a competitive programmer. Advanced experience in Kotlin or Java (Other languages considered C#/F#/C++) Deep familiarity with Linux environments and system-level APIs Experience with high-throughput, low-latency systems Ability to work independently and review code for correctness and clarity Finance experience not required, but curiosity helps Why Apply High-impact team with wide More ❯
platforms across asset classes Design pricing and risk logic, market data processing, and order handling Optimise data flow and system throughput under real-time constraints Implement core components in Kotlin (some C++ and legacy Python/Java) Engineer for reliability, testing, monitoring and rapid fault recovery What You'll Bring Solid command of CS fundamentals, algorithms, architecture, systems, likely … been a competitive programmer. Advanced experience in Kotlin or Java (Other languages considered C#/F#/C++) Deep familiarity with Linux environments and system-level APIs Experience with high-throughput, low-latency systems Ability to work independently and review code for correctness and clarity Finance experience not required, but curiosity helps Why Apply High-impact team with wide More ❯
london (city of london), south east england, united kingdom
Quant Capital
platforms across asset classes Design pricing and risk logic, market data processing, and order handling Optimise data flow and system throughput under real-time constraints Implement core components in Kotlin (some C++ and legacy Python/Java) Engineer for reliability, testing, monitoring and rapid fault recovery What You'll Bring Solid command of CS fundamentals, algorithms, architecture, systems, likely … been a competitive programmer. Advanced experience in Kotlin or Java (Other languages considered C#/F#/C++) Deep familiarity with Linux environments and system-level APIs Experience with high-throughput, low-latency systems Ability to work independently and review code for correctness and clarity Finance experience not required, but curiosity helps Why Apply High-impact team with wide More ❯
Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior Java Developer to join a leading Investment Bank as part of their global front-office technology team. This is a hands-on position focused on working with a real-time, event-driven system that underpins our industry-leading … and other relevant frameworks. Take full ownership of feature development from design through to production deployment. Collaborate effectively with cross-functional teams, balancing independence and teamwork. Key Skills: Java Kotlin Concurrency Message-driven architectures - Kafka, MQ SQL Queries Unix/Linux scripting Multithreading This is a full time role offering a salary of up to £130k. You will be … office in London 3 times per week. If you are interested or know anyone who might be please apply or email me direct - adam.wirth@nicollcurtin.com Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading More ❯
Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior Java Developer to join a leading Investment Bank as part of their global front-office technology team. This is a hands-on position focused on working with a real-time, event-driven system that underpins our industry-leading … and other relevant frameworks. Take full ownership of feature development from design through to production deployment. Collaborate effectively with cross-functional teams, balancing independence and teamwork. Key Skills: Java Kotlin Concurrency Message-driven architectures - Kafka, MQ SQL Queries Unix/Linux scripting Multithreading This is a full time role offering a salary of up to £130k. You will be … office in London 3 times per week. If you are interested or know anyone who might be please apply or email me direct - adam.wirth@nicollcurtin.com Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading More ❯
Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior Java Developer to join a leading Investment Bank as part of their global front-office technology team. This is a hands-on position focused on working with a real-time, event-driven system that underpins our industry-leading … and other relevant frameworks. Take full ownership of feature development from design through to production deployment. Collaborate effectively with cross-functional teams, balancing independence and teamwork. Key Skills: Java Kotlin Concurrency Message-driven architectures - Kafka, MQ SQL Queries Unix/Linux scripting Multithreading This is a full time role offering a salary of up to £130k. You will be … office in London 3 times per week. If you are interested or know anyone who might be please apply or email me direct - adam.wirth@nicollcurtin.com Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading More ❯
london (city of london), south east england, united kingdom
Nicoll Curtin
Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior Java Developer to join a leading Investment Bank as part of their global front-office technology team. This is a hands-on position focused on working with a real-time, event-driven system that underpins our industry-leading … and other relevant frameworks. Take full ownership of feature development from design through to production deployment. Collaborate effectively with cross-functional teams, balancing independence and teamwork. Key Skills: Java Kotlin Concurrency Message-driven architectures - Kafka, MQ SQL Queries Unix/Linux scripting Multithreading This is a full time role offering a salary of up to £130k. You will be … office in London 3 times per week. If you are interested or know anyone who might be please apply or email me direct - adam.wirth@nicollcurtin.com Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading More ❯
Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior Java Developer to join a leading Investment Bank as part of their global front-office technology team. This is a hands-on position focused on working with a real-time, event-driven system that underpins our industry-leading … and other relevant frameworks. Take full ownership of feature development from design through to production deployment. Collaborate effectively with cross-functional teams, balancing independence and teamwork. Key Skills: Java Kotlin Concurrency Message-driven architectures - Kafka, MQ SQL Queries Unix/Linux scripting Multithreading This is a full time role offering a salary of up to £130k. You will be … office in London 3 times per week. If you are interested or know anyone who might be please apply or email me direct - adam.wirth@nicollcurtin.com Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading More ❯
of software testing projects within a platform team, supporting dozens of other engineering teams across the organisation. Bring software engineering excellence into testing, working with backend languages such as Kotlin, Java, or Go, and drive full automation across the stack. Collaborate closely with product managers and engineering leaders, shaping solutions that will have an impact far beyond your own … automation. Curiosity about AI tools and their testing challenges. Collaborative mindset, joining a diverse, international team that thrives on openness and trust. Experience in backend development languages such as Kotlin, Java, or Go. Environment The team works remotely, with offices across Germany for in-person meetups, team building and collaboration when required. How to apply If you want to More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Understanding Recruitment
Do you love coding with Kotlin? Looking to work in a fast-paced start-up environment? 🚀 Senior Backend Engineer – AI transforming the future 🚀 📍 Location: Hybrid in London approx. 2 days a week (flexible work hours) 💰 Compensation: Up to £105k + bonus + share options We are very excited to have just partnered with a rapidly rising AI infrastructure company … than-production test data in minutes, without the never-ending manual work or compliance risks. Having just received their Series A funding, they’re hiring Senior Backend Engineers with Kotlin (or a combination of Java & Kotlin experience) to build new product features, improve performance and scalability, and help define technical direction within a growing engineering team. A Senior … Backend Engineer will have: BSc in Computer Science or STEM subject from Russell Group university Start-up or scale-up experience Have worked in product-focused tech companies Kotlin (Can have also worked with with Java) Spring Boot You will enjoy many great benefits too: Flexible work hours Bonus Share options Personal development budget Private healthcare, dental and eye More ❯
Do you love coding with Kotlin? Looking to work in a fast-paced start-up environment? 🚀 Senior Backend Engineer – AI transforming the future 🚀 📍 Location: Hybrid in London approx. 2 days a week (flexible work hours) 💰 Compensation: Up to £105k + bonus + share options We are very excited to have just partnered with a rapidly rising AI infrastructure company … than-production test data in minutes, without the never-ending manual work or compliance risks. Having just received their Series A funding, they’re hiring Senior Backend Engineers with Kotlin (or a combination of Java & Kotlin experience) to build new product features, improve performance and scalability, and help define technical direction within a growing engineering team. A Senior … Backend Engineer will have: BSc in Computer Science or STEM subject from Russell Group university Start-up or scale-up experience Have worked in product-focused tech companies Kotlin (Can have also worked with with Java) Spring Boot You will enjoy many great benefits too: Flexible work hours Bonus Share options Personal development budget Private healthcare, dental and eye More ❯
london, south east england, united kingdom Hybrid / WFH Options
Understanding Recruitment
Do you love coding with Kotlin? Looking to work in a fast-paced start-up environment? 🚀 Senior Backend Engineer – AI transforming the future 🚀 📍 Location: Hybrid in London approx. 2 days a week (flexible work hours) 💰 Compensation: Up to £105k + bonus + share options We are very excited to have just partnered with a rapidly rising AI infrastructure company … than-production test data in minutes, without the never-ending manual work or compliance risks. Having just received their Series A funding, they’re hiring Senior Backend Engineers with Kotlin (or a combination of Java & Kotlin experience) to build new product features, improve performance and scalability, and help define technical direction within a growing engineering team. A Senior … Backend Engineer will have: BSc in Computer Science or STEM subject from Russell Group university Start-up or scale-up experience Have worked in product-focused tech companies Kotlin (Can have also worked with with Java) Spring Boot You will enjoy many great benefits too: Flexible work hours Bonus Share options Personal development budget Private healthcare, dental and eye More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Understanding Recruitment
Do you love coding with Kotlin? Looking to work in a fast-paced start-up environment? 🚀 Senior Backend Engineer – AI transforming the future 🚀 📍 Location: Hybrid in London approx. 2 days a week (flexible work hours) 💰 Compensation: Up to £105k + bonus + share options We are very excited to have just partnered with a rapidly rising AI infrastructure company … than-production test data in minutes, without the never-ending manual work or compliance risks. Having just received their Series A funding, they’re hiring Senior Backend Engineers with Kotlin (or a combination of Java & Kotlin experience) to build new product features, improve performance and scalability, and help define technical direction within a growing engineering team. A Senior … Backend Engineer will have: BSc in Computer Science or STEM subject from Russell Group university Start-up or scale-up experience Have worked in product-focused tech companies Kotlin (Can have also worked with with Java) Spring Boot You will enjoy many great benefits too: Flexible work hours Bonus Share options Personal development budget Private healthcare, dental and eye More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Understanding Recruitment
Do you love coding with Kotlin? Looking to work in a fast-paced start-up environment? 🚀 Senior Backend Engineer – AI transforming the future 🚀 📍 Location: Hybrid in London approx. 2 days a week (flexible work hours) 💰 Compensation: Up to £105k + bonus + share options We are very excited to have just partnered with a rapidly rising AI infrastructure company … than-production test data in minutes, without the never-ending manual work or compliance risks. Having just received their Series A funding, they’re hiring Senior Backend Engineers with Kotlin (or a combination of Java & Kotlin experience) to build new product features, improve performance and scalability, and help define technical direction within a growing engineering team. A Senior … Backend Engineer will have: BSc in Computer Science or STEM subject from Russell Group university Start-up or scale-up experience Have worked in product-focused tech companies Kotlin (Can have also worked with with Java) Spring Boot You will enjoy many great benefits too: Flexible work hours Bonus Share options Personal development budget Private healthcare, dental and eye More ❯
shape the future of digital infrastructure. Their platform optimises real-time operations, connecting users with seamless, intelligent technology solutions. We are looking for Principal Engineer with deep expertise in Kotlin to help scale and enhance their high performance systems. This is an opportunity to work with modern backend architecture, collaborating with top-tier engineers in a fast-moving, product … focused environment. Responsibilities as a Principal Engineer: Contribute to the businesses technology strategy and architecture Contribute to the backend Kotlin infrastructure Ship resilient and well tested production code Collaborate with different teams to deliver value that aligns to business objectives Mentor and coach more junior members of the team Continuously evolve and improve the ways of working in the … business Key Requirements: Strong commercial experience in the Kotlin ecosystem for backend development Confidence to work with Spring Boot or Ktor to build robust microservices Strong ability to write secure, resilient, and well-tested code Ability to align engineering to ambitious commercial objectives Experience in line management responsibilities while remaining deeply technical Desire for building API-first products Deep More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Ozone Talent
shape the future of digital infrastructure. Their platform optimises real-time operations, connecting users with seamless, intelligent technology solutions. We are looking for Principal Engineer with deep expertise in Kotlin to help scale and enhance their high performance systems. This is an opportunity to work with modern backend architecture, collaborating with top-tier engineers in a fast-moving, product … focused environment. Responsibilities as a Principal Engineer: Contribute to the businesses technology strategy and architecture Contribute to the backend Kotlin infrastructure Ship resilient and well tested production code Collaborate with different teams to deliver value that aligns to business objectives Mentor and coach more junior members of the team Continuously evolve and improve the ways of working in the … business Key Requirements: Strong commercial experience in the Kotlin ecosystem for backend development Confidence to work with Spring Boot or Ktor to build robust microservices Strong ability to write secure, resilient, and well-tested code Ability to align engineering to ambitious commercial objectives Experience in line management responsibilities while remaining deeply technical Desire for building API-first products Deep More ❯
london, south east england, united kingdom Hybrid / WFH Options
Ozone Talent
shape the future of digital infrastructure. Their platform optimises real-time operations, connecting users with seamless, intelligent technology solutions. We are looking for Principal Engineer with deep expertise in Kotlin to help scale and enhance their high performance systems. This is an opportunity to work with modern backend architecture, collaborating with top-tier engineers in a fast-moving, product … focused environment. Responsibilities as a Principal Engineer: Contribute to the businesses technology strategy and architecture Contribute to the backend Kotlin infrastructure Ship resilient and well tested production code Collaborate with different teams to deliver value that aligns to business objectives Mentor and coach more junior members of the team Continuously evolve and improve the ways of working in the … business Key Requirements: Strong commercial experience in the Kotlin ecosystem for backend development Confidence to work with Spring Boot or Ktor to build robust microservices Strong ability to write secure, resilient, and well-tested code Ability to align engineering to ambitious commercial objectives Experience in line management responsibilities while remaining deeply technical Desire for building API-first products Deep More ❯
