SeniorJavaDeveloper - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a SeniorJavaDeveloper 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 … 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 ❯
SeniorJavaDeveloper - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a SeniorJavaDeveloper 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 … 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 ❯
South West London, London, United Kingdom Hybrid / WFH Options
Lynx Recruitment Limited
SeniorJavaDeveloper - Remote Working Lynx are currently working with a large IT consultancy to help them source a SeniorJavaDeveloper . 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 … 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 ❯
x SeniorJava Developers Front Office Banking London I have 3 new exclusive opportunities for Front Office Java developers to join a thriving bank as they are building out their Front Office Java development team- 3 headcount- as part of growth and development. The bank area is Front Office pricing and risk, and we can look … at any front office Java developers Role details Role title: SeniorJavadeveloper/Java software engineer Employer: investment bank Front Office banking: Platform pricing and risk Location: London City (Liverpool Street station) and home working hybrid 50%/50% Permanent roles- 3 roles £90,000- £130,000 plus bonus Requirements: excellent javadeveloper … with pricing, and risk especially beneficial These new hires are a part of a growth plan for the front office area of this investment bank as they expand their java development skills. As the seniorjavadeveloper, you will be hands on with Java 21 working with front office risk teams, trading desk, quants and More ❯
x SeniorJava Developers Front Office Banking London I have 3 new exclusive opportunities for Front Office Java developers to join a thriving bank as they are building out their Front Office Java development team- 3 headcount- as part of growth and development. The bank area is Front Office pricing and risk, and we can look … at any front office Java developers Role details Role title: SeniorJavadeveloper/Java software engineer Employer: investment bank Front Office banking: Platform pricing and risk Location: London City (Liverpool Street station) and home working hybrid 50%/50% Permanent roles- 3 roles £90,000- £130,000 plus bonus Requirements: excellent javadeveloper … with pricing, and risk especially beneficial These new hires are a part of a growth plan for the front office area of this investment bank as they expand their java development skills. As the seniorjavadeveloper, you will be hands on with Java 21 working with front office risk teams, trading desk, quants and More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Huxley
x SeniorJava Developers Front Office Banking London I have 3 new exclusive opportunities for Front Office Java developers to join a thriving bank as they are building out their Front Office Java development team- 3 headcount- as part of growth and development. The bank area is Front Office pricing and risk, and we can look … at any front office Java developers Role details Role title: SeniorJavadeveloper/Java software engineer Employer: investment bank Front Office banking: Platform pricing and risk Location: London City (Liverpool Street station) and home working hybrid 50%/50% Permanent roles- 3 roles £90,000- £130,000 plus bonus Requirements: excellent javadeveloper … with pricing, and risk especially beneficial These new hires are a part of a growth plan for the front office area of this investment bank as they expand their java development skills. As the seniorjavadeveloper, you will be hands on with Java 21 working with front office risk teams, trading desk, quants and More ❯
Senior Full Stack JavaDeveloper Role - Leading SaaS Based Automation Company - Berkshire - Hybrid/Once a Fortnight onsite in Berkshire based office (Moving to new offices in Reading in March 2026 - 2 days onsite from March 2026) - Up to £80,000 + 10% Bonus + Benefits Are you a Senior Full Stack JavaDeveloper looking for a new challenge? Do you enjoy working across the full stack with Java and ReactJS? Would you like to work on hugely impactful business/mission critical automation platforms for iconic world brands? G.R.E. Recruitment is delighted to partner with a leading SaaS based Automation Company who are looking to add a Senior Full Stack … JavaDeveloper to their dynamic scaling development team. These roles will initially be once a fortnight in the Berkshire based office as they plan to move to new offices in Reading - then it will be twice per week in the office from March 2026. For this role I am looking for a Senior Full Stack JavaMore ❯
Leeds, West Yorkshire, England, United Kingdom Hybrid / WFH Options
InvitISE Ltd
We’re looking for a SeniorJavaDeveloper 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 SeniorJavaDeveloper 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 … 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 ❯
Hawksworth are now recruiting for a SeniorJavaDeveloper 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 … someone 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 SeniorJavaDeveloper Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading/FIX/Performance More ❯
Hawksworth are now recruiting for a SeniorJavaDeveloper 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 … someone 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 SeniorJavaDeveloper Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading/FIX/Performance More ❯
SeniorJavaDeveloper This is a hybrid role requiring 1/2 days per week in their London office. La Fosse are partnering with a market leading InsurTech provider who are in the market for a skilled SeniorJavaDeveloper to join the core software engineering team. This role provides a unique opportunity to … The work you do will span the full software development lifecycle, from idea to production, and you’ll be empowered to take ownership of complex engineering challenges. Key Requirements: Java Spring Boot AWS Excellent communication. Bachelors or Masters degree. Experience working at a start-up/scale-up. Compensation : This role is offering an incredibly competitive salary + extended More ❯
LocationBloomsbury Square, London, United Kingdom# SeniorJavaDeveloper at N Consulting LtdLocationBloomsbury Square, London, United KingdomSalary£400 - £450/dayJob TypeContractDate PostedSeptember 12th, 2025Apply NowWork mode: Hybrid, Office location will be Bishopsgate, London Contract duration: 6 months Location: London - JOB DETAILS Role Title: SeniorDeveloper We are seeking a highly skilled and experienced SeniorDeveloper with deep expertise in AWS BluAge modernization tools, Java Spring Boot, and Apache Kafka. The ideal candidate will play a key role in modernizing legacy applications, building scalable microservices, and implementing real time data pipelines. Must have technical skills: AWS BluAge Kafka Java Springboot Nice to have skills: Good to have some knowledge on banking More ❯
SeniorJava Software Engineer Watford/Hybrid Salary - £70,000 - £80,000 + Excellent benefits We’re looking for a talented SeniorJava Engineer with a passion for clean code, elegant architecture, and efficient delivery. This is a hands-on role focused on developing a cloud-native platform and its foundational services—mission-critical components that … support a modern workforce management software stack. You’ll work primarily with Java, building robust, secure, and scalable applications. As part of a small, elite team, you’ll have the freedom and responsibility to shape the future of the platform. 🔧 Key Responsibilities • Deliver best-in-class Java platform code with a strong focus on architecture and design. • Build … current with industry trends in software development, infrastructure, architecture, and security. 🧠 Skills & Experience • Proven experience delivering complex software solutions (HR software experience is a plus). • Deep expertise in Java, object-oriented design patterns, multi-threading, and asynchronous paradigms. • Familiarity with Spring, Git, Postgres, MongoDB, and JavaScript. • Comfortable designing APIs and working within cloud-native architectures. • Experience writing performant More ❯
Leamington Spa, Warwickshire, West Midlands, United Kingdom Hybrid / WFH Options
Corriculo Ltd
Senior Back-End Developer, Java Spring Boot, Hybrid, COR7370 Are you a skilled Back-End Developer with strong Java Spring Boot expertise, looking for your next challenge? Join a forward-thinking team shaping the future of AI-powered solutions. The Role As a Senior Back-End Developer, you'll design and maintain scalable … secure, and high-performing services using Java Spring Boot. You'll build and optimise RESTful APIs, work closely with front-end teams to deliver seamless integrations, and ensure robust database management. With opportunities to experiment with AI-driven automation, this role offers a chance to influence cutting-edge back-end architecture. The Company Our client is transforming the way … projects. The role is primarily remote working, with one day per week from their offices near Leamington Spa. What's Required? The ideal candidate will have: Strong experience with Java and Spring Boot A solid understanding of RESTful API development and microservices Proficiency with relational databases and query optimisation along with experience with DevOps tools is desirable An interest More ❯
and Chicago. We pride ourselves on a diverse, friendly, dynamic culture - with a focus on internal promotion and developing our people. Scope of Role ITRS Group is looking for SeniorJava Engineer in London. Reporting to our Engineering Manager, you will sit in the Platform Team and form part of a wider global Engineering Team. The Core Platform … team in anticipation of wider customer adoption through 2025. Our role offers a permanent, full-time position working from our London office on a hybrid work schedule. As a SeniorJava Software Engineer, you will: Participate in all phases of the product lifecycle, including design, development, documentation, testing, integration, deployment, and ongoing support. Participate in mentoring relationships - both … ongoing personal growth. There will always be opportunities requiring it. We have an ambitious L&D policy to support your learning and growth Requirements You are predominantly a backend Javadeveloper with at least 7 years of experience building complex distributed systems. You have built applications from the ground-up with a deep understanding of core JavaMore ❯
SeniorJavaDeveloper | Low Latency | London Our client is a specialist engineering consultancy known for solving some of the most demanding performance challenges across financial markets and technology. Their teams design, build, and optimise high-throughput, low-latency systems used by global institutions where reliability and speed are critical. They are now looking for exceptional Java … Location : Primarily Remote, with travel to London City at least twice per week. 💷Package : Highly competitive base + benefits What You’ll Do Design, build, and maintain high-performance Java applications used in demanding real-time systems. Develop and enhance testing and benchmarking frameworks to validate system performance. Identify and eliminate bottlenecks through systematic performance analysis . Contribute ideas … . A strong and proven track record developing low-latency, high-throughput systems on JVM. Understanding of JVM internals (GC, threading, concurrency, locking). Commercial experience with high-performance Java systems . Ability to communicate effectively with both technical and non-technical stakeholders. Ability to work confidently across existing and greenfield projects. Maintaining a high level of professionalism and More ❯
SeniorJavaDeveloper Low Latency London Our client is a specialist engineering consultancy known for solving some of the most demanding performance challenges across financial markets and technology. Their teams design, build, and optimise high-throughput, low-latency systems used by global institutions where reliability and speed are critical. They are now looking for exceptional Java … Location : Primarily Remote, with travel to London City at least twice per week. Package : Highly competitive base + benefits What You'll Do Design, build, and maintain high-performance Java applications used in demanding real-time systems. Develop and enhance testing and benchmarking frameworks to validate system performance. Identify and eliminate bottlenecks through systematic performance analysis . Contribute ideas … . A strong and proven track record developing low-latency, high-throughput systems on JVM. Understanding of JVM internals (GC, threading, concurrency, locking). Commercial experience with high-performance Java systems . Ability to communicate effectively with both technical and non-technical stakeholders. Ability to work confidently across existing and greenfield projects. Maintaining a high level of professionalism and More ❯
1. Job purpose We are looking for a sharp SeniorJavaDeveloper to play a key role in a small collaborative team building trading venues and associated infrastructure. We follow rapid development and deployment cycles for projects and share ownership of the entire codebase, so you will get great experience across a variety of exchange applications and … financial product types. We care about the code that we write and we want a developer that is more interested in writing clean, maintainable, efficient code rather than a quick hack. Any former experience with specific cryptocurrencies, and/or related skills such as decentralized finance (DeFi), tokenisation, trading, matching engine, clearing and settlement as well as capital markets … system integration will be a very useful complement to the above. 2. Key technology used Primary: Java 8+ Secondary: Spring FIX Hibernate (Postgres) Sockets Linux Maven AWS/Cloud deployment SVN/GIT EPL (Esper) JMS (ActiveMQ) 3. Methodology Agile/Scrum Continuous integration Test automation TDD 4. Requirements Must have Core Java SE Desire to learn Passion More ❯
Birmingham, England, United Kingdom Hybrid / WFH Options
TXP
Senior Full Stack Developer (Java) Location: Hybrid (West Midlands-based) Sector: Public Sector (preferred experience) Clearance: Eligibility for SC Clearance (living in the UK permanently for the last 5 years) We are TXP. We help businesses and organisations move forward, at pace and at scale. We believe in the transformative power of combining technology and people. By … believe in the power of technology and people, and we help everyone here to succeed. At TXP, you can multiply your potential. What You’ll Be Doing As a Senior Full Stack Developer at TXP, you’ll leading the technical delivery of high-impact software projects within internal or customer Application Development Teams. While your focus will be … on backend development using Java and Spring, you’ll also contribute to frontend work, ideally with React, or JavaScript/TypeScript. You’ll guide a small team, ensuring quality, consistency, and timely delivery. You’ll be hands-on throughout the full software development lifecycle, designing, coding, testing, resolving defects, and deploying solutions. You’ll also play a key role More ❯
SeniorJava Engineer Location: London (1-2 days a week in the office, mandatory on Thursdays) Experience: Minimum 8-10 years Technical Skills: Proficiency in Java 8 (transitioning to Java 17) Retail banking experince Python Experience with Spring Boot 2.4 and above Knowledge of Continuous Integration Apigee Java Testing API experience If all the above More ❯
Job description Java Full-Stack Developer Location: London (Hybrid) Salary: £85,000 - £90,000 + benefits I've partnered with an exciting tech firm who are building software that transforms how stakeholders make important decisions. What started as a consultancy has evolved into a SaaS platform that helps organisations cut through hundreds of pages of board packs and … focus on what matters. Their products combine Java, AI, and modern web technologies to deliver clarity and speed for decision-makers. They're estimated at nearly $30M, annually, and have 3 offices globally, with the view to grow their UK footprint. Having recently doubled down on AI-driven tools, they are tackling the biggest pain points stakeholders have, information … overload and poor decision-making efficiency. What You'll Do Develop and enhance their core services built in Java (Spring Boot). Work on full-stack features using React (or similar modern JS frameworks). Collaborate on new product initiatives, including AI-powered tools. Contribute to architecture decisions and help shape the future Tech Stack Backend: Java (Spring More ❯
Job description Java Full-Stack Developer Location: London (Hybrid) Salary: £85,000 – £90,000 + benefits I’ve partnered with an exciting tech firm who are building software that transforms how stakeholders make important decisions. What started as a consultancy has evolved into a SaaS platform that helps organisations cut through hundreds of pages of board packs and … focus on what matters. Their products combine Java, AI, and modern web technologies to deliver clarity and speed for decision-makers. They’re estimated at nearly $30M, annually, and have 3 offices globally, with the view to grow their UK footprint. Having recently doubled down on AI-driven tools, they are tackling the biggest pain points stakeholders have, information … overload and poor decision-making efficiency. What You’ll Do Develop and enhance their core services built in Java (Spring Boot). Work on full-stack features using React (or similar modern JS frameworks). Collaborate on new product initiatives, including AI-powered tools. Contribute to architecture decisions and help shape the future Tech Stack Backend: Java (Spring More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Opus Recruitment Solutions
Job description Java Full-Stack Developer Location: London (Hybrid) Salary: £85,000 – £90,000 + benefits I’ve partnered with an exciting tech firm who are building software that transforms how stakeholders make important decisions. What started as a consultancy has evolved into a SaaS platform that helps organisations cut through hundreds of pages of board packs and … focus on what matters. Their products combine Java, AI, and modern web technologies to deliver clarity and speed for decision-makers. They’re estimated at nearly $30M, annually, and have 3 offices globally, with the view to grow their UK footprint. Having recently doubled down on AI-driven tools, they are tackling the biggest pain points stakeholders have, information … overload and poor decision-making efficiency. What You’ll Do Develop and enhance their core services built in Java (Spring Boot). Work on full-stack features using React (or similar modern JS frameworks). Collaborate on new product initiatives, including AI-powered tools. Contribute to architecture decisions and help shape the future Tech Stack Backend: Java (Spring More ❯
Newcastle Upon Tyne, Tyne and Wear, England, United Kingdom Hybrid / WFH Options
Accenture
SeniorJava DeveloperLocation: Newcastle Please Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address history (typically including no periods of 30 consecutive days or more spent outside of the UK) at the point of application. Other Security Clearance requirements may be applicable, which will be discussed More ❯
Job Description: SeniorDeveloper Location: Leeds, UK (3 days in office) SC Cleared: Not Required Job Type: Full-Time Relevant Experience: 7 Years Job Summary: Designs, runs and improves software that meets user needs. Competent Javadeveloper with significant experience in AWS cloud services. Proficient in AngularJS, Jenkins, Karate, Gherkin and Cypress, Cloudformation, Jenkins, Groovy and … Focus on user needs and experience. Operate and improve production services. Provide Level 3 (L3) support 24/7 (including out of hour on-call support) Requirements: Experience with Java (Springboot) and AWS cloud services (ECR, ECS, Lambda, API Gateway, S3, DynamoDB, Step Functions, Apigee) Proficiency in AngularJS, Jenkins, Karate, Node 10, Groovy, Bash, Typescript. Knowledge of Gherkin, Cypress … CD pipelines. Knowledge of user-centered design principles. ITIL certification will be desirable. Experience of working in Agile teams Overall Technology Stack (for reference): Hosting: AWS, Apigee, Cloudflare Languages: Java 8 (SpringBoot), Node 10, Groovy, Bash, Angular.js, Typescript, Drupal AWS Services: ECR, ECS, Lambda, API Gateway, S3, DynamoDB, Step Functions Testing: Junit, Karate, Cypress, JMeter, Gatling, Jest Tooling: Gitlab More ❯
