20 of 20 Senior Java Developer Jobs in London

Job Title: Senior Java Developer Day Rate: Via Umbrella Length of Contract: 6 months (huge potential for extension) Location: Bromley Hybrid (3 days onsite) About client: One of the largest financial institutions in the U.S., it serves millions across consumer banking, investment, and wealth management. Headquartered in North Carolina, it plays a pivotal role in global finance. … Role Overview: We are seeking an experienced Senior Java Developer with a strong background in the banking and financial services sector, particularly in corporate and commercial payments/deposits. The ideal candidate will play a key role in designing, developing and supporting robust, scalable applications, working within Agile delivery teams. Responsibilities: * Design, develop and maintain Java … required* Work both independently and collaboratively within Agile teams* Produce clear, well-documented code and technical documentation* Communicate effectively with stakeholders at all levels Skills & Responsibilities: * Strong proficiency in Java development, with experience spanning Java 11+ through to the latest versions (Java 24)* Solid experience with Spring Boot and microservices architecture* Hands-on experience with OpenShift or More ❯

Job Summary As a Senior Java Developer at Eeze you will play a crucial role in shaping the development of our live casino games from concept to delivery.This position is perfect for those with a startup mindset, the ability to work independently, take initiative, and make their own decisions. Main Responsibilities Design and develop live casino games … using Java, Kotlin, Scala and the Spring framework, ensuring high performance and quality standards. Create scalable and maintainable microservices architecture for game components. Deploy and manage game services on Kubernetes clusters, optimizing resource allocation and ensuring high availability. Utilize cloud technologies (e.g., AWS, Azure, Google Cloud) to build, deploy, and scale game services. Implement real-time communication protocols (e.g. … Maintain clear and comprehensive documentation for code, APIs, and deployment procedures. Requirements Bachelor's or Master's degree in Computer Science or a related field. Proven experience as a Java/Kotlin Developer, with a focus on backend development. Strong expertise in Java, Spring framework, and microservices architecture, with Scala experience as an added advantage. Experience with More ❯

An instantly recognisable London-based financial services institution is actively seeking 2 Senior Java Developers with extensive banking experience to work on a business-critical project in the risk and pricing space. What you'll need to succeed 10+ years' Java Development experience within financial services - mandatory Good knowledge across a range of asset classes, ideally Fixed More ❯

An instantly recognisable London-based financial services institution is actively seeking 2 Senior Java Developers with extensive banking experience to work on a business-critical project in the risk and pricing space. What you'll need to succeed 10+ years' Java Development experience within financial services - mandatory Good knowledge across a range of asset classes, ideally Fixed More ❯

unparalleled access to capital and liquidity. What We do/The Team The FX Data Analytics & AI Technology team, within Citi's FX Technology organization, seeks a highly motivated Senior Java Data Engineer. The FX Data Analytics & Gen AI Technology team provides data, analytics, and tools to Citi FX sales and trading globally and is responsible for defining … with a practical and pragmatic attitude, ability to build consensus, and work both collaboratively and independently in a dynamic environment. Role Overview/What will you do: As a Senior Java Engineer, your mission is to help shape our team of innovators and technologists toward creating next-level solutions that improve the way our business is run. Engineer … terms of data management, need-to-know (NTK), and data governance. Contribute to shaping and executing the overall data strategy for FX in collaboration with the existing team and senior stakeholders. Closely work with FX desks in understanding the requirements and translating into simple and efficient design. Close interaction with Traders and Quants to understand new requirements for applications More ❯

Senior Java Engineer - Azure Migration (Financial Services) Location: London (Hybrid - 1 day per week onsite) Rate: Up to £650/day (Inside IR35) Start Date: ASAP Engagement: Consultancy - Financial Services Clients Overview A leading consultancy is seeking a Senior Java Engineer for a high-impact Azure migration programme within financial services. This role involves lifting and … and deploying services in Azure, helping to modernise backend systems while ensuring reliability and performance in a regulated environment. Key Responsibilities Contribute to the lift-and-shift migration of Java-based applications to Azure Migrate and support services including the broker services portal, static data, integration layers, and authentication modules Ensure secure, scalable deployment using Azure cloud-native tools … Build and support systems using PostgreSQL, Java, and Spring Boot Integrate and monitor using observability tools like Datadog and BigPanda Collaborate closely with architects, DevOps, and security teams across the full SDLC Core Skills & Technologies Strong backend development in Java with Spring Boot Cloud migration experience, particularly Azure Lift-and-Shift Familiarity with cloud infrastructure and deployment pipelines More ❯

execution algorithms, risk engines, UI dashboards, middle office reconciliation, and account infrastructure. We emphasize event-driven, deterministic system design, real-time observability, and strong security. Our tech stack includes Java (low-latency), Python, Web UI (React/Ag-Grid), Aeron, ClickHouse, Kubernetes, and modern CI/CD tooling, with a strong focus on automation, scalability, and performance. AI-assisted … to ensure high standards across the codebase. Use AI-driven coding tools (e.g., GitHub Copilot or similar) to accelerate development and improve productivity where appropriate. Requirements 5+ years of Java backend development experience, preferably in a trading or real-time system environment. Deep understanding of Java core internals, multithreading, memory models, and garbage collection. Proven experience in GC … a plus but not required. Comfortable working in a global team with colleagues across APAC, EMEA, and North America. Strong communication skills; able to interface across all levels from senior leadership to engineers and stakeholders. Able to collaborate effectively with people from different cultural and technical backgrounds, aligning tech decisions with business goals. Life @ Empowered to think big. Try More ❯

by Goldman Sachs Asset Management and Everstone Capital, Apexon now has a global presence of 15 offices (and 10 delivery centers) across four continents. We enable Required Skill Set Java (11) Junit 5 React React Testing Library (Frontend Unit testing) Cypress (Frontend E2E Testing) Spring Boot (Microservice Architecture) Sybase Mongo DB Kubernatis Understanding on Cloud infra (Snowflake) Roles & Responsibilities More ❯

Senior Full Stack Java Developer (100k-120k plus benefits and bonus) This is a hybrid role, 2 days in the office, 3 days remote What the role offers: Competitive salary with growth opportunities. Opportunity to work on cutting-edge fintech solutions. A collaborative and supportive team environment. Exposure to a wide range of technologies and the chance … to building high-performance solutions for investment professionals. Our small, close-knit team thrives on collaboration, innovation, and technical excellence. As we expand, we're looking for a talented developer to join our team and play a crucial role in shaping our platform. Role Overview: As a Full Stack Java Developer, you will work across the full … stack, collaboratively contributing to front-end, back-end, system architecture, and infrastructure. You will be responsible for designing and developing scalable, robust software solutions using Java, with a focus on system design and performance. AWS experience is a plus, and financial industry knowledge would be beneficial but not required. Key Responsibilities: Work on full-stack development, including front-end More ❯

Job Title: Senior Java Developer - Electronic Trading Location: London A leading global financial firm is looking for a skilled Java Developer to join their Electronic Fixed Income team. You'll help build and improve fast, reliable trading systems that connect to global markets. What You'll Do Develop and improve electronic trading systems with a … technology. Support and improve existing trading tools. Solve technical problems and boost system performance. What You'll Need Strong experience in trading systems, 5+ in eTrading. Strong skills in Java , multi-threading, and low-latency development. Good understanding of fixed income or FX trading . Experience with Linux , TCP/UDP , and performance tuning. Familiar with test-driven development More ❯

Senior Java Developer/Software Engineer London/WFH to £130k Are you a Java technologist who enjoys building systems from scratch? You could be progressing your career, in a senior, impactful role at a global prime broker that is replacing the legacy infrastructure used across capital markets with a new cloud-native clearing and … custody system, designed for today's complex global markets. The company is experiencing great success and is expanding into the UK. As a Senior Java Developer you will take ownership of building a brand new Equity SWAPS platform for the UK, primarily using Java with a focus on backend development but also with some React UI … highly talented and collaborative team in the London, City office three days a week with flexibility to work from home the other two. About you: You have strong backend Java development skills including Spring, Spring Boot, microservices You take in pride in producing clean, high quality code You also have an appreciation of UI development with TypeScript/React More ❯

E-Trading Fixed Income - Senior Java Developer | London (Hybrid) | 6-12 month contract We are partnered with a leading investment bank who is hiring a Java Developer with strong expertise in electronic trading systems to join their e-Fixed Income team in London. You'll play a key role in developing high-performance, low-latency … trading platforms and integrating TransFICC connectivity. We're looking for someone with extensive experience in the e-trading field and deep knowledge of Java , low-latency programming , and multi-threaded systems . You'll work closely with traders, quants, and analysts to deliver robust, scalable solutions. Key Requirements: Extensive experience with electronic trading is a must. Strong Java More ❯

E-Trading Fixed Income - Senior Java Developer | London (Hybrid) | 6-12 month contract We are partnered with a leading investment bank who is hiring a Java Developer with strong expertise in electronic trading systems to join their e-Fixed Income team in London. You'll play a key role in developing high-performance, low-latency … trading platforms and integrating TransFICC connectivity. We're looking for someone with extensive experience in the e-trading field and deep knowledge of Java , low-latency programming , and multi-threaded systems . You'll work closely with traders, quants, and analysts to deliver robust, scalable solutions. Key Requirements: Extensive experience with electronic trading is a must. Strong Java More ❯

investment bank within a market-leading front-office team developing business-critical solutions for a range of stakeholders including traders and quants. What you'll need to succeed Extensive Java Development experience within financial services. Strong experience with reference data mandatory. Strong experience with springboot. Strong experience with cloud, ideally Azure or AWS. Good experience integrating with data services. More ❯

Vacancy for Senior Java Developer at The National Archives Vacancy for Senior Java Developer at The National Archives 20 December 2021 Remote, Kew Up to £700 per day Fixed Term An experienced Java developer is required to design, implement and test improvements to the performance and features of the DROID file identification … tool, starting with enabling DROID to be integrated with cloud-based workflows. The specialist will be the only developer actively working on DROID. The wider team is a Product manager, Technical Architect, Lead and Senior Developers (available for discussion of technical options, code review, acceptance). The specialist will have access to users: Digital Archivists (users of the More ❯

Role: Senior Java Developer (Algo/FX eTrading) London (Hybrid) £100,000 - £160,000 We are seeking a Senior Java Developer to join the Global Front Office Algo eTrading Development Team of a leading investment bank. This is an exciting opportunity to design, develop, and deliver high-performance technical solutions for a cutting-edge … trading platform. Responsibilities Be a hands-on Senior Developer, influencing project direction from the outset. Develop new connectivity and RFQ protocols, including portfolios, for the expansion of eTrading. Enhance the auto-quoting and algo framework for pricing, offering, aggressing, hedging, and quoting functionalities. Collaborate with global development teams located across London and India. Lead the engineering and delivery … of the platform, supporting internal mobility and strategic programs. Contribute to regulatory and control-related initiatives, including the replacement of Algo containers. Key Skills Core Java: High-performance Java coding with expertise in zero-GC/non-allocating development. Multithreading: Advanced knowledge of concurrent programming. Low Latency Trading: Proven experience with high-throughput, low-latency systems. Networking & Messaging More ❯

a month-Full-time BenefitsPulled from the full job description UK visa sponsorship Full job description Are you interested in immigrating to Canada? We're looking to sponsor multiple JAVA Developers to move to Canada. Currently, there is a shortage of experienced technical candidates, and many job opportunities. We're looking for someone who has significant technical experience, and … technical staffing agency. We're looking for the best candidates, because we understand what a difference quality makes in the development process. Requirements: Excellent English Skills 8+ years of JAVA development experience (technical interview and test to follow) Experience in either Finance or Healthcare industries The Process: The application process to come to Canada is not short - it will … month Application question(s): Would you require work visa sponsorship to work in Canada? Are you willing to relocate to Canada? Do you have at least 8 years with Java development? Language: English (required) Work Location: In person APPLY NOW More ❯

The FX Data Analytics & AI Technology team, within Citi's FX Technology organization, seeks a highly motivated Senior Java Data Engineer. The team provides data, analytics, and tools to Citi FX sales and trading globally. Responsibilities Responsibilities of the team include engineering and development, with a strong understanding of computer systems and how they operate. Requirements Hands-on … experience in Java, Spark, Scala (or Java). Production-scale experience in writing data pipelines using Spark or other distributed real-time/batch technologies. More ❯

Java Development Team Leader London This is a new and exclusive opportunity for a Software Development Team Leader focused on Java Full stack, to join a thriving business as they grow their software development team Role details Title: Development team lead Technical stack: Java full stack- back end and front end, React, Azure Location: London City … day a week in the office leading your team Focus of the role: leading your team of 7 developer 5 back end java developers, 2 front end java react developers Permanent role salary £70-90,000 plus bonus and benefits This is a really interesting role and a great chance to join a team as they are … have recently spent £35million on an entirely new sales portal, and this investment is continuing This role is for a Software development team lead who will focus on leading Java software development from the front (approx. 50% of the role) and leading the work of the full stack java developers under you- 7 in total. We are looking More ❯

Java Development Team Leader London This is a new and exclusive opportunity for a Software Development Team Leader focused on Java Full stack, to join a thriving business as they grow their software development team Role details Title: Development team lead Technical stack: Java full stack- back end and front end, React, Azure Location: London City … day a week in the office leading your team Focus of the role: leading your team of 7 developer 5 back end java developers, 2 front end java react developers Permanent role salary £70-90,000 plus bonus and benefits This is a really interesting role and a great chance to join a team as they are … have recently spent £35million on an entirely new sales portal, and this investment is continuing This role is for a Software development team lead who will focus on leading Java software development from the front (approx. 50% of the role) and leading the work of the full stack java developers under you- 7 in total. We are looking More ❯