1,001 to 1,025 of 1,417 Java Jobs in London

Java Developer – FX Low Latency Market Making A leading hedge fund with a global presence, specialising in quantitative trading and market making across multiple asset classes is seeking a highly skilled Senior Java Developer to join their rapidly expanding FX business to help design and build ultra-low-latency trading systems that power their electronic market making strategies. The Role … As a Senior Java Developer in an FX market making team, you will play a key role in designing, implementing, and optimising cutting-edge trading systems. You will work closely with quantitative researchers, traders, and infrastructure teams to deliver software that operates at microsecond latencies, scales globally, and directly contributes to our competitive edge in the markets. Key Responsibilities Design … time trading environments. Provide mentorship and technical leadership to junior developers. Work in a fast-paced, agile environment where time-to-market is critical. Skills & Experience Required Expert-level Java development skills with deep knowledge of concurrency, memory management, and the JVM internals. 5+ years of experience building low-latency trading systems (preferably FX, but other asset classes welcome). More ❯

Java Developer – FX Low Latency Market Making A leading hedge fund with a global presence, specialising in quantitative trading and market making across multiple asset classes is seeking a highly skilled Senior Java Developer to join their rapidly expanding FX business to help design and build ultra-low-latency trading systems that power their electronic market making strategies. The Role … As a Senior Java Developer in an FX market making team, you will play a key role in designing, implementing, and optimising cutting-edge trading systems. You will work closely with quantitative researchers, traders, and infrastructure teams to deliver software that operates at microsecond latencies, scales globally, and directly contributes to our competitive edge in the markets. Key Responsibilities Design … time trading environments. Provide mentorship and technical leadership to junior developers. Work in a fast-paced, agile environment where time-to-market is critical. Skills & Experience Required Expert-level Java development skills with deep knowledge of concurrency, memory management, and the JVM internals. 5+ years of experience building low-latency trading systems (preferably FX, but other asset classes welcome). More ❯

Java Developers - (SaaS) We are working with a leading SaaS company, who specialise in building AI Products. They are looking for a Java Developers, ideally with some React.JS to join their team Java 17/21 AWS React.js/TypeScript This role is 3 days a week in the office (London) and 2 days WFH 80k + Pension More ❯

Job Title: AVP Python/Java Developer Location: London (Hybrid, 2 days in-office) Salary: Up to 120k About the Role: Join a brand-new team at a leading global investment bank, working at the heart of FX Data & Analytics. Youll be building and supporting the core data and analytics layer that bridges downstream data sources and upstream React-based … UIs. The work is a blend of Python and Java, with a strong focus on Python for data transformation and analytics, and Java for connecting to front-end systems. Key Responsibilities: Develop and maintain the data and analytics layer (Python/Java) supporting business-critical dashboards. Collaborate closely with quant developers and business stakeholders. Consolidate and enhance fragmented solutions into … connecting to diverse data sources and running analytics. Help shape the technical direction of a new team and greenfield projects. What Were Looking For: Strong experience with Python and Java (framework experience; not core Java/low-latency focus). E-Trading experience. Confident working with business users and stakeholders, including quants. Flexible on the Python/Java split (more More ❯

Senior Software Developer (Java/Spring) London (Hybrid) 50K Location: London (Hybrid) Type: Full-time Permanent The company are developing software solutions that address a wide range of challenges faced by the public sector. Their customers include government departments, agencies, and other public sector organisations, helping them streamline processes and achieve their goals effectively. They are looking for a skilled … Senior Software Engineer who looking is eager to learn, and are ready to contribute to our ongoing growth and success. Develop and maintain applications using Java & Spring Boot Write and maintain unit, integration, and end-to-end tests Participate in code reviews and uphold coding standards Help design scalable, secure features and services 2+ years commercial experience in Java with … Spring Solid grasp of modern Java practices Familiarity with Agile methodologies & short delivery cycles Flexible Hybrid Working - 2 days onsite per week Profit share scheme to reward your contributions. Private health insurance to keep you covered. Pension scheme for a secure future. If you're passionate about writing high-quality code and want to work on software that makes a More ❯

Banking Domain Proven hands-on proficiency Java 21/24 Spring Rest controller Api Unit testing Automation testing AWS Knowledge More ❯

API Automation Engineer Hybrid Working - London - 2 days a week on site. Financial Services Lorien's leading banking client is looking for a skilled API Automation Engineer with strong Java development experience to join our London-based team. This is not a manual testing role or one focused on tools like SOAP UI - we need someone who can design and … build robust test automation frameworks using Java and REST Assured, with a solid understanding of mocking and cloud environments ( AWS ). This role is based in London. This role will be Via Umbrella. Working in a Hybrid Model of 2 days a week on site. Key Skills and Experience Design, develop, and maintain API test automation frameworks using Java and … a BDD environment using Cucumber to define and execute test scenarios. Participate in code reviews and contribute to continuous improvement of testing practices. Required Skills & Experience: Proven experience in Java-based API test automation Hands-on expertise with REST Assured Experience with AWS and cloud-based testing environments Strong understanding of mocking tools and techniques Familiarity with BDD frameworks like More ❯

is a global technology innovator, leading advances in AI, automation and hybrid cloud solutions that help businesses grow. They are currently recruiting for an experienced Technical Lead specialising in Java and web technologies to lead the design and development of robust, scalable, and secure enterprise applications RESPONSIBILITIES Architect and Design: Define, design, and implement scalable, secure, and maintainable enterprise application … architectures using Java and modern web technologies. Collaboration : Work closely with cross-functional teams to gather business and technical requirements, translating them into effective and efficient application solutions. Technical Leadership: Provide hands-on technical direction, ensuring adherence to best practices, coding standards, and architectural principles. REQUIREMENTS Proficiency in Java, Spring/Spring Boot, Hibernate/JPA, and RESTful APIs. Strong More ❯

Banking Domain Proven hands-on proficiency Java 21/24 Spring Rest controller Api Unit testing Automation testing AWS Knowledge JBG81_UKTJ . click apply for full job details More ❯

office/Kubernetes - sought by investment bank based in London - Hybrid - Contract *Inside IR35* Key Responsibilities Develop and maintain backend components of a next-gen trading platform. Work with Java and/or Kotlin to deliver robust solutions. Deploy containerised applications using Kubernetes and Docker. Leverage MongoDB and Databricks for data processing and analytics. Integrate with relational databases and support … with stakeholders and contribute to technical decision-making. Ensure code quality through testing, debugging, and optimisation. Essential Skills 3+ years of backend development experience in financial systems. Proficiency in Java and/or Kotlin. Strong knowledge of Kubernetes and Docker. Experience with MongoDB and Databricks. Familiarity with relational databases (e.g., PostgreSQL, MySQL, Oracle). Understanding of Git, CI/CD More ❯

office/Kubernetes - sought by investment bank based in London - Hybrid - Contract *Inside IR35* Key Responsibilities Develop and maintain backend components of a next-gen trading platform. Work with Java and/or Kotlin to deliver robust solutions. Deploy containerised applications using Kubernetes and Docker. Leverage MongoDB and Databricks for data processing and analytics. Integrate with relational databases and support … with stakeholders and contribute to technical decision-making. Ensure code quality through testing, debugging, and optimisation. Essential Skills 3+ years of backend development experience in financial systems. Proficiency in Java and/or Kotlin. Strong knowledge of Kubernetes and Docker. Experience with MongoDB and Databricks. Familiarity with relational databases (e.g., PostgreSQL, MySQL, Oracle). Understanding of Git, CI/CD More ❯

modern engineering practices. The ideal candidate will bring proven expertise in AWS services, particularly with AWS CDK, alongside strong experience in DevOps and CI/CD pipelines. Proficiency in Java microservices development and test driven development (TDD) is essential, as is hands on experience in component migrations. A proactive and detail-oriented approach will be vital to ensure smooth transitions … Key Skills and Responsibilities You will have: Good working experience with continuous integration and continuous delivery (CI/CD) AWS CodePipeline expertise CDK Experience DevOps & CI/CD (pipelines) Java microservice experience Test Driven Development Component migrations techniques Go programming language Desirable Skills/Knowledge/Experience Strong problem solving skills Go programming experience Agile/Scrum experience Load Balancer … experience Defensive programming techniques Tools and Technology Java Jira AWS TDD CI/CD Experience A degree in Computer Science, Software Engineering, or a related field or similar work based experience. Proven experience as a Senior Software Engineer ideally with a focus on media-related projects. Very good working knowledge of standard software development frameworks, techniques and methodologies. Experience with More ❯

and maintaining message sets and message definitions using XML, MRM, and TDS formats Supporting API integrations via API Connect or Azure API Management Writing and maintaining scripts in ESQL, Java, Korn Shell, PERL, and SQL Collaborating with business stakeholders, operations teams, and vendors to deliver robust solutions Participating in change control processes and supporting production incidents when required What We … hands-on experience with IBM Integration Bus (v9+) or App Connect Enterprise (ACE 12) Proven expertise working with IBM MQ (v8.0+) and MQFTE (v7.0+) Solid programming skills in ESQL, Java, SQL , and Scripting languages (Korn Shell, PERL) Experience developing message flows and working with multiple node types Proficiency working across Unix/AIX, Linux, and Windows environments Strong understanding of More ❯

systems that help the government monitor and reduce greenhouse gas emissions from commercial transport Role Summary Triad is seeking a Solution Architect with strong experience across .NET (C#) and Java technologies. You will play a pivotal role in designing and delivering high-quality, scalable, and secure digital solutions for our clients. You will collaborate closely with stakeholders, development teams, and … both innovative and deliver long-term value. Key Responsibilities: · Solution Design - Define the technical architecture, predominantly utilising cloud native services on AWS or Azure combined with bespoke .Net or Java services, or low code (PowerPlatform) depending on the client environment and architectural strategy. · Technical Leadership - Provide technical direction to development teams, guiding architectural decisions, integration approaches, and solution delivery. · Stakeholder … and lessons learned to drive ongoing technical excellence. Skills and Experience: · Proven experience as a Solution Architect, Technical Architect, or Senior Developer/Tech Lead across .NET (C#) and Java platforms. · Strong understanding of software design principles, object-oriented programming, and distributed systems. · Hands-on experience with cloud technologies such as Azure, AWS, or GCP. · Proficiency in integration design, including More ❯

deploying robust, AI-heavy applications. Bonus Experience Experience with named entity recognition/recommendation systems. Knowledge of Gitlab's CI/CD (or Github Actions). Basic understanding of Java (ideally with Spring Boot). Experience working in a fast-paced, product-led environment. Experience working with data within the insurance/healthcare sector. About UnderwriteMe UnderwriteMe is an Insurtech … about your needs, and we will consult with you to ensure suitable accommodation is provided. UnderwriteMe Values Please click here to view our company values Similar Jobs (3) Senior Java Engineer locations London, UK time type Full time posted on Posted 23 Days Ago Senior Software Engineer locations London, UK time type Full time posted on Posted 3 Days Ago More ❯

create and sustain competitive advantage. Experience Required: 8+ Years Contract Type: Inside IR35 Duration: 6 months to 12 months (possibility of extension) Job Overview: We are looking for a Java Engineer to join a high-performing team building low-latency, mission-critical applications. This is a contract role offering the opportunity to work on real-time, high-throughput systems within … a fast-paced and innovative trading environment. The ideal candidate will be an expert in reactive Java programming , multithreading, and clean software design, with the mindset to thrive in high-pressure, performance-driven teams. Roles and Responsibilities: Develop and maintain high-performance, low-latency Java-based systems for front office trading or pricing platforms. Build reactive systems using Kafka Streams … traders, and other developers in a fast-paced environment. Maintain a high level of code quality and technical standards under tight timelines. Key Requirements: 6+ years of hands-on Java development experience, preferably in front office systems (e.g., trading platforms, pricing engines, market data systems). Proven expertise in reactive programming (Kafka Streams, Akka, Vert.x, Flink). Solid understanding of More ❯

create and sustain competitive advantage. Experience Required: 8+ Years Contract Type: Inside IR35 Duration: 6 months to 12 months (possibility of extension) Job Overview: We are looking for a Java Engineer to join a high-performing team building low-latency, mission-critical applications. This is a contract role offering the opportunity to work on real-time, high-throughput systems within … a fast-paced and innovative trading environment. The ideal candidate will be an expert in reactive Java programming , multithreading, and clean software design, with the mindset to thrive in high-pressure, performance-driven teams. Roles and Responsibilities: Develop and maintain high-performance, low-latency Java-based systems for front office trading or pricing platforms. Build reactive systems using Kafka Streams … traders, and other developers in a fast-paced environment. Maintain a high level of code quality and technical standards under tight timelines. Key Requirements: 6+ years of hands-on Java development experience, preferably in front office systems (e.g., trading platforms, pricing engines, market data systems). Proven expertise in reactive programming (Kafka Streams, Akka, Vert.x, Flink). Solid understanding of More ❯

create and sustain competitive advantage. Experience Required: 8+ Years Contract Type: Inside IR35 Duration: 6 months to 12 months (possibility of extension) Job Overview: We are looking for a Java Engineer to join a high-performing team building low-latency, mission-critical applications. This is a contract role offering the opportunity to work on real-time, high-throughput systems within … a fast-paced and innovative trading environment. The ideal candidate will be an expert in reactive Java programming , multithreading, and clean software design, with the mindset to thrive in high-pressure, performance-driven teams. Roles and Responsibilities: Develop and maintain high-performance, low-latency Java-based systems for front office trading or pricing platforms. Build reactive systems using Kafka Streams … traders, and other developers in a fast-paced environment. Maintain a high level of code quality and technical standards under tight timelines. Key Requirements: 6+ years of hands-on Java development experience, preferably in front office systems (e.g., trading platforms, pricing engines, market data systems). Proven expertise in reactive programming (Kafka Streams, Akka, Vert.x, Flink). Solid understanding of More ❯

create and sustain competitive advantage. Experience Required: 8+ Years Contract Type: Inside IR35 Duration: 6 months to 12 months (possibility of extension) Job Overview: We are looking for a Java Engineer to join a high-performing team building low-latency, mission-critical applications. This is a contract role offering the opportunity to work on real-time, high-throughput systems within … a fast-paced and innovative trading environment. The ideal candidate will be an expert in reactive Java programming , multithreading, and clean software design, with the mindset to thrive in high-pressure, performance-driven teams. Roles and Responsibilities: Develop and maintain high-performance, low-latency Java-based systems for front office trading or pricing platforms. Build reactive systems using Kafka Streams … traders, and other developers in a fast-paced environment. Maintain a high level of code quality and technical standards under tight timelines. Key Requirements: 6+ years of hands-on Java development experience, preferably in front office systems (e.g., trading platforms, pricing engines, market data systems). Proven expertise in reactive programming (Kafka Streams, Akka, Vert.x, Flink). Solid understanding of More ❯

to help solve their customers complex operational problems. As the business continues to grow the company are interested in speaking with experienced Full Stack Software Engineers with expertise in Java to join a live project. You will be designated an office base, however the company work in a hybrid fashion so you can choose how often you work from the … and software lifecycle and maintenance The Fit: At present we are interested in speaking to Full Stack Engineers with commercial experience using a range of languages/technologies including Java & AWS. Due to the industries we work in, we require all our team to be able to obtain security clearance. To qualify for this, you must be a British passport More ❯

to help solve their customers complex operational problems. As the business continues to grow the company are interested in speaking with experienced Full Stack Software Engineers with expertise in Java to join a live project. You will be designated an office base, however the company work in a hybrid fashion so you can choose how often you work from the … and software lifecycle and maintenance The Fit: At present we are interested in speaking to Full Stack Engineers with commercial experience using a range of languages/technologies including Java & AWS. Due to the industries we work in, we require all our team to be able to obtain security clearance. To qualify for this, you must be a British passport More ❯

Job Title: AVP – Python/Java Developer Location: London (Hybrid, 2 days in-office) Salary: Up to £120k About the Role: Join a brand-new team at a leading global investment bank, working at the heart of FX Data & Analytics. You’ll be building and supporting the core data and analytics layer that bridges downstream data sources and upstream React … based UIs. The work is a blend of Python and Java, with a strong focus on Python for data transformation and analytics, and Java for connecting to front-end systems. Key Responsibilities: Develop and maintain the data and analytics layer (Python/Java) supporting business-critical dashboards. Collaborate closely with quant developers and business stakeholders. Consolidate and enhance fragmented solutions … to diverse data sources and running analytics. Help shape the technical direction of a new team and greenfield projects. What We’re Looking For: Strong experience with Python and Java (framework experience; not core Java/low-latency focus). E-Trading experience. Confident working with business users and stakeholders, including quants. Flexible on the Python/Java split (more More ❯

Job Title: AVP – Python/Java Developer Location: London (Hybrid, 2 days in-office) Salary: Up to £120k About the Role: Join a brand-new team at a leading global investment bank, working at the heart of FX Data & Analytics. You’ll be building and supporting the core data and analytics layer that bridges downstream data sources and upstream React … based UIs. The work is a blend of Python and Java, with a strong focus on Python for data transformation and analytics, and Java for connecting to front-end systems. Key Responsibilities: Develop and maintain the data and analytics layer (Python/Java) supporting business-critical dashboards. Collaborate closely with quant developers and business stakeholders. Consolidate and enhance fragmented solutions … to diverse data sources and running analytics. Help shape the technical direction of a new team and greenfield projects. What We’re Looking For: Strong experience with Python and Java (framework experience; not core Java/low-latency focus). E-Trading experience. Confident working with business users and stakeholders, including quants. Flexible on the Python/Java split (more More ❯

Job Title: AVP – Python/Java Developer Location: London (Hybrid, 2 days in-office) Salary: Up to £120k About the Role: Join a brand-new team at a leading global investment bank, working at the heart of FX Data & Analytics. You’ll be building and supporting the core data and analytics layer that bridges downstream data sources and upstream React … based UIs. The work is a blend of Python and Java, with a strong focus on Python for data transformation and analytics, and Java for connecting to front-end systems. Key Responsibilities: Develop and maintain the data and analytics layer (Python/Java) supporting business-critical dashboards. Collaborate closely with quant developers and business stakeholders. Consolidate and enhance fragmented solutions … to diverse data sources and running analytics. Help shape the technical direction of a new team and greenfield projects. What We’re Looking For: Strong experience with Python and Java (framework experience; not core Java/low-latency focus). E-Trading experience. Confident working with business users and stakeholders, including quants. Flexible on the Python/Java split (more More ❯

Job Title: AVP – Python/Java Developer Location: London (Hybrid, 2 days in-office) Salary: Up to £120k About the Role: Join a brand-new team at a leading global investment bank, working at the heart of FX Data & Analytics. You’ll be building and supporting the core data and analytics layer that bridges downstream data sources and upstream React … based UIs. The work is a blend of Python and Java, with a strong focus on Python for data transformation and analytics, and Java for connecting to front-end systems. Key Responsibilities: Develop and maintain the data and analytics layer (Python/Java) supporting business-critical dashboards. Collaborate closely with quant developers and business stakeholders. Consolidate and enhance fragmented solutions … to diverse data sources and running analytics. Help shape the technical direction of a new team and greenfield projects. What We’re Looking For: Strong experience with Python and Java (framework experience; not core Java/low-latency focus). E-Trading experience. Confident working with business users and stakeholders, including quants. Flexible on the Python/Java split (more More ❯