Senior JavaDeveloper - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior JavaDeveloper 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 … components, ensuring the platform can scale to meet the growing demands of business event processing and data management. Key Responsibilities: Develop, implement, and maintain highly performant, secure, and scalable Java applications. Java Server Side Concurrent Programming with Spring Boot (Core Spring) Leverage Kafka or other message queue systems to handle asynchronous processing. Design, optimize, and maintain MongoDB (NoSQL … JUnit 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 More ❯
Senior JavaDeveloper - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior JavaDeveloper 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 … components, ensuring the platform can scale to meet the growing demands of business event processing and data management. Key Responsibilities: Develop, implement, and maintain highly performant, secure, and scalable Java applications. Java Server Side Concurrent Programming with Spring Boot (Core Spring) Leverage Kafka or other message queue systems to handle asynchronous processing. Design, optimize, and maintain MongoDB (NoSQL … JUnit 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 More ❯
Senior JavaDeveloper - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior JavaDeveloper 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 … components, ensuring the platform can scale to meet the growing demands of business event processing and data management. Key Responsibilities: Develop, implement, and maintain highly performant, secure, and scalable Java applications. Java Server Side Concurrent Programming with Spring Boot (Core Spring) Leverage Kafka or other message queue systems to handle asynchronous processing. Design, optimize, and maintain MongoDB (NoSQL … JUnit 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 More ❯
london (city of london), south east england, united kingdom
Nicoll Curtin
Senior JavaDeveloper - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior JavaDeveloper 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 … components, ensuring the platform can scale to meet the growing demands of business event processing and data management. Key Responsibilities: Develop, implement, and maintain highly performant, secure, and scalable Java applications. Java Server Side Concurrent Programming with Spring Boot (Core Spring) Leverage Kafka or other message queue systems to handle asynchronous processing. Design, optimize, and maintain MongoDB (NoSQL … JUnit 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 More ❯
Senior JavaDeveloper - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior JavaDeveloper 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 … components, ensuring the platform can scale to meet the growing demands of business event processing and data management. Key Responsibilities: Develop, implement, and maintain highly performant, secure, and scalable Java applications. Java Server Side Concurrent Programming with Spring Boot (Core Spring) Leverage Kafka or other message queue systems to handle asynchronous processing. Design, optimize, and maintain MongoDB (NoSQL … JUnit 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 More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
JavaDeveloper/Backend Software Engineer (Java AWS) London/WFH to £100k Opportunity to progress your career in a senior, hands-on JavaDeveloper role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. W hat's in it for you: Salary to … Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a JavaDeveloper you will join a fairly new team working on a new crypto offering to design, develop and implement high performance cloud-native backend services including owning DevOps … processes to ensure systems are robust, secure and observable. You'll be working with a modern tech stack using Java, Spring Boot, CI/CD, Kubernetes, AWS, EKS and Grafana/Splunk. About you: You have advanced backend software engineering experience with Java, Spring Boot, REST, Postgres, Redis You have experience of running production workloads on Kubernetes (Amazon More ❯
Manchester, Lancashire, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
JavaDeveloper/Team Lead Manchester/WFH to £80k Are you a hands-on technical leader with strong Java skills? You could be working on complex and interesting systems using the latest technology within a diverse, supportive environment whilst enjoying a range of perks and continual learning opportunities at a global games software house. As a … JavaDeveloper/Team Lead you will play a key role in guiding and inspiring a small, high-performing development team, working on real-time in sports betting applications. This is an excellent opportunity for a hands-on leader who enjoys balancing technical delivery with team development and collaboration, with approximately a 50/50 split between hands … You'll promote engineering excellence, encouraging best practices and contributing to continuous improvement across both team and wider organisation. A central part of this role will be creating a developer-friendly environment that allows individuals to focus, innovate and perform at their best. Location/WFH: You'll join the team in Central Manchester three days a week with More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Lynx Recruitment Ltd
Senior JavaDeveloper - Remote Working Lynx are currently working with a large IT consultancy to help them source a Senior JavaDeveloper . Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities: Engaging in the entire software development lifecycle, from gathering requirements and … Advocating for and contributing to best practices in software engineering across teams and projects Key skills and experience: Must be either SC cleared or eligible Experience working as a JavaDeveloperJava development experience Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. More ❯
South West London, London, United Kingdom Hybrid / WFH Options
Lynx Recruitment Limited
Senior JavaDeveloper - Remote Working Lynx are currently working with a large IT consultancy to help them source a Senior JavaDeveloper . Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities: Engaging in the entire software development lifecycle, from gathering requirements and … projects Key skills and experience: Previous experience working within a consulting organisation or the public sector is essentail Must be either SC cleared or eligible Experience working as a JavaDeveloperJava development experience Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. More ❯
Belfast, County Antrim, Northern Ireland, United Kingdom Hybrid / WFH Options
VANLOQ LIMITED
JavaDeveloper Hybrid (Belfast) | 6-Month Contract | Inside IR35 Our client, a leading organisation within the financial services sector, is seeking an experienced JavaDeveloper to join their Belfast-based technology team on an initial 6-month contract (Inside IR35). This is an excellent opportunity to work on high-performance, data-driven applications within a … fast-paced enterprise environment. The successful candidate will play a key role in developing and optimising complex batch processing and integration systems using Java 17, Spring Batch, Spring Integration, and GridGain Database. Key Responsibilities Design, develop, and maintain scalable Java 17 applications for enterprise data processing. Build and optimise batch processing solutions using Spring Batch. Design and implement … deployment and operational tasks in Unix/Linux environments. Collaborate with cross-functional technical and business teams to deliver high-quality, reliable solutions. Skills & Experience Required Strong proficiency in Java 17, including modern Java features and best practices. Proven experience with Spring Batch and Spring Integration. Solid understanding of Unix/Linux scripting and SQL. Hands-on experience More ❯
London, England, United Kingdom Hybrid / WFH Options
Client Server
JavaDeveloper/Technical Lead London/WFH to £115k Are you a hands-on JavaDeveloper with technical leadership skills? You could be progressing your career in a hands-on leadership role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. What's in … Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a JavaDeveloper/Technical Lead you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management … engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributed systems with 24/7 availability. Location/WFH: There's a hybrid model with two More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Client Server
JavaDeveloper/Technical Lead London/WFH to £115k Are you a hands-on JavaDeveloper with technical leadership skills? You could be progressing your career in a hands-on leadership role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. What's in … Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a JavaDeveloper/Technical Lead you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management … engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributed systems with 24/7 availability. Location/WFH: There's a hybrid model with two More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
JavaDeveloper/Technical Lead London/WFH to £115k Are you a hands-on JavaDeveloper with technical leadership skills? You could be progressing your career in a hands-on leadership role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. W hat's … Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a JavaDeveloper/Technical Lead you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management … engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributed systems with 24/7 availability. Location/WFH: There's a hybrid model with two More ❯
Hawksworth are now recruiting for a Senior JavaDeveloper with extensive experience with Front Office Algo Trading projects. The job: IT Low Latency JavaDeveloper 1 year contract with potential for extensions Inside IR35 Rate £920 per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from … home pw) This is a IT Low-Latency, JavaDeveloper position working for the e-FX Desk where the team develops the pricing, hedging and low-latency order and price distribution team systems. We need someone for this role role that has strong low latency , Java , Algo development experience. Someone who can show optimizing/low latency … who has achieved low latency in the microseconds. EFX would be nice but we can accept other other asset classes experience. What you will need: Tenure as a Senior JavaDeveloper Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading/FIX/Performance monitoring Significant More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Hawksworth
Hawksworth are now recruiting for a Senior JavaDeveloper with extensive experience with Front Office Algo Trading projects. The job: IT Low Latency JavaDeveloper 1 year contract with potential for extensions Inside IR35 Rate £920 per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from … home pw) This is a IT Low-Latency, JavaDeveloper position working for the e-FX Desk where the team develops the pricing, hedging and low-latency order and price distribution team systems. We need someone for this role role that has strong low latency , Java , Algo development experience. Someone who can show optimizing/low latency … who has achieved low latency in the microseconds. EFX would be nice but we can accept other other asset classes experience. What you will need: Tenure as a Senior JavaDeveloper Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading/FIX/Performance monitoring Significant More ❯
london, south east england, united kingdom Hybrid / WFH Options
Hawksworth
Hawksworth are now recruiting for a Senior JavaDeveloper with extensive experience with Front Office Algo Trading projects. The job: IT Low Latency JavaDeveloper 1 year contract with potential for extensions Inside IR35 Rate £920 per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from … home pw) This is a IT Low-Latency, JavaDeveloper position working for the e-FX Desk where the team develops the pricing, hedging and low-latency order and price distribution team systems. We need someone for this role role that has strong low latency , Java , Algo development experience. Someone who can show optimizing/low latency … who has achieved low latency in the microseconds. EFX would be nice but we can accept other other asset classes experience. What you will need: Tenure as a Senior JavaDeveloper Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading/FIX/Performance monitoring Significant More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Hawksworth
Hawksworth are now recruiting for a Senior JavaDeveloper with extensive experience with Front Office Algo Trading projects. The job: IT Low Latency JavaDeveloper 1 year contract with potential for extensions Inside IR35 Rate £920 per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from … home pw) This is a IT Low-Latency, JavaDeveloper position working for the e-FX Desk where the team develops the pricing, hedging and low-latency order and price distribution team systems. We need someone for this role role that has strong low latency , Java , Algo development experience. Someone who can show optimizing/low latency … who has achieved low latency in the microseconds. EFX would be nice but we can accept other other asset classes experience. What you will need: Tenure as a Senior JavaDeveloper Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading/FIX/Performance monitoring Significant More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Hawksworth
Hawksworth are now recruiting for a Senior JavaDeveloper with extensive experience with Front Office Algo Trading projects. The job: IT Low Latency JavaDeveloper 1 year contract with potential for extensions Inside IR35 Rate £920 per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from … home pw) This is a IT Low-Latency, JavaDeveloper position working for the e-FX Desk where the team develops the pricing, hedging and low-latency order and price distribution team systems. We need someone for this role role that has strong low latency , Java , Algo development experience. Someone who can show optimizing/low latency … who has achieved low latency in the microseconds. EFX would be nice but we can accept other other asset classes experience. What you will need: Tenure as a Senior JavaDeveloper Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading/FIX/Performance monitoring Significant More ❯
Leeds, West Yorkshire, England, United Kingdom Hybrid / WFH Options
InvitISE Ltd
We’re looking for a Senior JavaDeveloper for our public sector client based in Leeds on an initial 12-month contract paying up to £700 per day Inside IR35. This role allows hybrid working with an expectation to attend the office 3 days per week. You will need to either hold current BPSS clearance or have the … ability to pass it, and be eligible for SC clearance. The successful Senior JavaDeveloper will possess proven skills working with the following – Java 21 (or later) Test Driven Development (TDD) and Behaviour Driven Development (BDD) Large microservice architectures Agile environments and pair programming Implementing APIs for internal and external use Building automated test suites in CI … have: Jackson, JAX-RS, Mockito ActiveMQ or Kafka MongoDB or other NoSQL/document databases Experience scaling high-traffic websites and handling large data sets Interested? Please apply below. Java Software Engineer, Java, Java 21, Microservices, TDD, BDD, Agile, APIs, CI/CD, Leeds, Government, Public Sector, Developer, Contract, Inside IR35 More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Talent
Lead JavaDeveloper 6 Months Hybrid working 1 day a week on site £500-£550 per a day inside IR35 Talent Consulting is seeking an experienced Lead JavaDeveloper to join one of our government clients on a large-scale digital transformation programme. You’ll lead a team delivering modern, cloud-native solutions—rebuilding internal systems … creating efficient digital processes, and ensuring scalable, high-quality software delivery. As Lead JavaDeveloper you will be responsible for: Design and develop modern, cloud-based services using Java and Node.js. Build and maintain microservices and UI components, ensuring seamless integration between front-end interfaces and back-end APIs. Implement event-driven solutions using Kafka and other … as Terraform. Create, maintain, and optimize CI/CD pipelines using GitLab CI. Collaborate with designers and front-end developers to deliver modern, responsive UI experiences. As a Lead Developer you will have the following experience: Proven experience leading and mentoring development teams. Extensive hands-on experience developing modern cloud-native applications using Java and Node.js. Strong background More ❯
Lead JavaDeveloper 6 Months Hybrid working 1 day a week on site £500-£550 per a day inside IR35 Talent Consulting is seeking an experienced Lead JavaDeveloper to join one of our government clients on a large-scale digital transformation programme. You’ll lead a team delivering modern, cloud-native solutions—rebuilding internal systems … creating efficient digital processes, and ensuring scalable, high-quality software delivery. As Lead JavaDeveloper you will be responsible for: Design and develop modern, cloud-based services using Java and Node.js. Build and maintain microservices and UI components, ensuring seamless integration between front-end interfaces and back-end APIs. Implement event-driven solutions using Kafka and other … as Terraform. Create, maintain, and optimize CI/CD pipelines using GitLab CI. Collaborate with designers and front-end developers to deliver modern, responsive UI experiences. As a Lead Developer you will have the following experience: Proven experience leading and mentoring development teams. Extensive hands-on experience developing modern cloud-native applications using Java and Node.js. Strong background More ❯
london, south east england, united kingdom Hybrid / WFH Options
Talent
Lead JavaDeveloper 6 Months Hybrid working 1 day a week on site £500-£550 per a day inside IR35 Talent Consulting is seeking an experienced Lead JavaDeveloper to join one of our government clients on a large-scale digital transformation programme. You’ll lead a team delivering modern, cloud-native solutions—rebuilding internal systems … creating efficient digital processes, and ensuring scalable, high-quality software delivery. As Lead JavaDeveloper you will be responsible for: Design and develop modern, cloud-based services using Java and Node.js. Build and maintain microservices and UI components, ensuring seamless integration between front-end interfaces and back-end APIs. Implement event-driven solutions using Kafka and other … as Terraform. Create, maintain, and optimize CI/CD pipelines using GitLab CI. Collaborate with designers and front-end developers to deliver modern, responsive UI experiences. As a Lead Developer you will have the following experience: Proven experience leading and mentoring development teams. Extensive hands-on experience developing modern cloud-native applications using Java and Node.js. Strong background More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Talent
Lead JavaDeveloper 6 Months Hybrid working 1 day a week on site £500-£550 per a day inside IR35 Talent Consulting is seeking an experienced Lead JavaDeveloper to join one of our government clients on a large-scale digital transformation programme. You’ll lead a team delivering modern, cloud-native solutions—rebuilding internal systems … creating efficient digital processes, and ensuring scalable, high-quality software delivery. As Lead JavaDeveloper you will be responsible for: Design and develop modern, cloud-based services using Java and Node.js. Build and maintain microservices and UI components, ensuring seamless integration between front-end interfaces and back-end APIs. Implement event-driven solutions using Kafka and other … as Terraform. Create, maintain, and optimize CI/CD pipelines using GitLab CI. Collaborate with designers and front-end developers to deliver modern, responsive UI experiences. As a Lead Developer you will have the following experience: Proven experience leading and mentoring development teams. Extensive hands-on experience developing modern cloud-native applications using Java and Node.js. Strong background More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Talent
Lead JavaDeveloper 6 Months Hybrid working 1 day a week on site £500-£550 per a day inside IR35 Talent Consulting is seeking an experienced Lead JavaDeveloper to join one of our government clients on a large-scale digital transformation programme. You’ll lead a team delivering modern, cloud-native solutions—rebuilding internal systems … creating efficient digital processes, and ensuring scalable, high-quality software delivery. As Lead JavaDeveloper you will be responsible for: Design and develop modern, cloud-based services using Java and Node.js. Build and maintain microservices and UI components, ensuring seamless integration between front-end interfaces and back-end APIs. Implement event-driven solutions using Kafka and other … as Terraform. Create, maintain, and optimize CI/CD pipelines using GitLab CI. Collaborate with designers and front-end developers to deliver modern, responsive UI experiences. As a Lead Developer you will have the following experience: Proven experience leading and mentoring development teams. Extensive hands-on experience developing modern cloud-native applications using Java and Node.js. Strong background More ❯
Buckley, Flintshire, Wales, United Kingdom Hybrid / WFH Options
Hyperloop Recruitment
Senior JavaDeveloper £65,000 (DOE) North Wales (hybrid) Hyperloop Recruitment are working with a fast-growth tech firm based in North Wales, looking to bring a Senior JavaDeveloper into their team. Working in a team of specialists, the successful candidate will be responsible for creating new solutions to business problems, creating new products whilst … helping build and support our clients' core software and services. The role would suit a talented JavaDeveloper with at least 5 years' commercial experience working with AWS and Java-based technologies, looking for an exciting new challenge. You will have broad fundamental knowledge across multiple domains and have the ability to adapt to new technologies if … required. Tech stack: Java 8+ Spring Boot AWS Database technologies (PostgreSQL, Redis, Elastic Search) RESTful APIs JavaScript Jira/Confluence Unit testing ability It would be a bonus if you've worked with any of the following: Kotlin Kafka Bash Groovy Linux The role is paying up to £65,000 (DOE) plus benefits and will be a hybrid working More ❯
