101 to 125 of 240 Permanent Senior Java Engineer Jobs

Bullish, Inc. is seeking a Senior Engineer for Trading Product Engineering in London. You will design and deliver low-latency Java code powering the Bullish Exchange, working across a hybrid architecture that blends a Central Limit Order Book with proprietary market making. You will optimize performance, expand ...

Virtual Hire Staffing is seeking a Mid/Senior Java Web Engineer for a leading global financial markets infrastructure client in London. The role involves hands-on work across backend services and web UI, delivering a modular end-to-end trade management platform in collaboration with architects … frontend developers. Requirements include strong Java with Spring Boot, REST APIs, React knowledge, SQL/PostgreSQL, Git, and Maven/Gradle; 4–8+ years of experience; and an Agile, Linux/Unix #J-18808-Ljbffr ...

latest technology to connect with them quickly, efficiently and wherever possible in highly personalised ways. Job Description We’re looking for a Senior Engineer to join our Group Protection technology team. This is an exciting opportunity to play a key role in shaping and delivering modern cloud-based … technical excellence Contributing to architectural decisions, reducing technical debt and improving platform sustainability Who we're looking for: Strong commercial experience developing software using Java and JavaScript/TypeScript Experience building and supporting RESTful microservices in Spring Boot, Node.js or similar frameworks Solid understanding of cloud technologies, ideally Azure ...

IntaPeople Limited in Cardiff is scaling a Product Engineering team and seeking a Senior Java Engineer. You will deliver features, mentor juniors, and turn technical direction into working software. The role involves designing complex solutions with Java Spring Boot on the backend, React/TypeScript ...

ITRS Group is seeking a Senior Java Software Engineer in London to join the Platform Team. You will work on a core platform of distributed services that ingest and transform observability data for visualisation, analytics and integrations. This is a permanent, full-time role with a hybrid ...

Hawk-Eye Innovations Ltd. seeks a Principal Java Engineer to lead backend architecture for a new sports technology product. This hybrid role requires expertise in building high-performance, low-latency systems for real-time data. Candidates should have a strong background in Java and experience with cloud ...

Hawk-Eye Innovations Ltd. seeks a Principal Java Engineer to lead backend architecture for a new sports technology product. This hybrid role requires expertise in building high-performance, low-latency systems for real-time data. Candidates should have a strong background in Java and experience with cloud ...

Hawk-Eye Innovations Ltd. seeks a Principal Java Engineer to lead backend architecture for a new sports technology product. This hybrid role requires expertise in building high-performance, low-latency systems for real-time data. Candidates should have a strong background in Java and experience with cloud ...

98171091088Posted: 2026-08-21Location: Belfast, Northern Ireland, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiSenior Software Engineer (Java Or Python) Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses … escalating, managing and reporting control issues with transparency.Key Skills and Experience requiredAdditional Job DescriptionExperience in full‐stack application development with strong expertise in Java or Python Deep experience with backend frameworks such as Spring Boot/Spring Core and Flask/FastAPISolid frontend experience with modern JavaScript frameworks (React ...

Cognizant is seeking a highly technical, hands-on Senior Java Web Engineer to join an engineering team building enterprise-scale applications. You will maintain and enhance backend services and web interfaces while contributing to modern digital platforms and UI components. In a collaborative Agile environment, you will ...

Vestmark is seeking a Senior Java Software Engineer to help build AI-native wealth management solutions. You will work on agentic systems and production-quality software that matters, not a ticket queue. In addition to strong Java development skills, the role emphasizes AI fluency, design discussions ...

99108127280Posted: 2026-08-21Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiSenior Java Software Engineer – FX Options Risk (VP)This position is responsible for designing, developing, and optimizing our mission-critical, high-throughput FX real-time risk system. As a Senior Software Engineer … adhere to corporate security, scalability, and stability standards to safeguard Citigroup, its clients, and assets. Hands-on Development Contribute hands-on as a primary engineer utilizing our modern tech stack: Core Java (multi-threading, concurrency, memory optimization), CouchbaseDB, Kafka, and Apache Storm. Solve complex real-time risk calculation ...

JPMorganChase is seeking a Senior Java Developer for Equities Sales OMS as part of a global team supporting electronic business. The role emphasizes building secure, scalable systems with AI-assisted development tools in a London-based environment. The Senior Lead Software Engineer will provide technical guidance ...

achieve our vision of being the world’s most trusted, innovative, liquidity and data solutions specialist. Role Overview TP ICAP are looking for a Senior Java Developer delivering low‐latency, highly available trading system components with deep expertise in Java, FIX connectivity, and distributed real‐time messaging. … will be responsible for designing, building, and optimising mission‐critical trading services across multiple asset classes. Role Responsibilities Design and implement distributed, fault‐tolerant Java services for electronic trading environments Lead performance tuning, optimisation, and refactoring of low‐latency trading components Investigate and resolve production issues, ensuring system stability ...

Senior Software Engineer I (Java & JavaScript)Do you enjoy designing and developing scalable, high-performance applications using Java and JavaScript About the team: You will join the Identity & Access Management team, which owns the authentication and authorisation infrastructure underpinning Elsevier’s global product suite. We build … line, and provides direct input to project plans, schedules, and methodology in the development of cross-functional software products under the guidance of more senior members of the squad. This position performs software design - typically across multiple components; develops the skills of mentoring more junior members of the team ...

future.Select your locationSelect your locationIndustriesChoose a partner with intimate knowledge of your industry and first-hand experience of defining its future.London, Manchester, Glasgow, Newcastle# Java Full Stack Engineer-Senior Consultant-Digital Excellence## **ROLE DETAILS****SBU - Invent****CU - Business Technology****Global Grade - C**##At Capgemini Invent, we believe … ability to make a real difference for our clients. We work in diverse multi-disciplinary teams, hand-in-glove with our clients. Our Java Full Stack Engineers are responsible for creating the visions of our clients and driving better business outcomes. They are tasked with building cutting-edge digital ...

LexisNexis Risk Solutions in the United Kingdom is seeking a Senior Software Engineer to design, develop, and deliver high-quality Java-based solutions. You will work with Product, UX, QA, and engineering teams to build scalable, cloud-native applications using Spring Boot, AWS, Docker, and modern front ...

Capgemini Invent in the UK is hiring a Java Full Stack Engineer – Senior Consultant for Digital Excellence. You will design and deliver cutting-edge microservices using Spring Boot, while building responsive frontend apps with React, HTML and CSS, in agile, multi-disciplinary teams. You will lead engineering ...

seeking a Senior Data Engineer with strong SQL and Java expertise to design and deliver scalable data solutions. In this role, you will leverage Java's robustness and Scala's functional data-processing power to build scalable pipelines, manage distributed big data frameworks, and optimize … business stakeholders to translate requirements into scalable data solutions. Implement automated testing, monitoring, and data quality controls across the data platform. Essential Skills & Experience Java: 5+ years of professional experience with Java (Version 11 or higher preferred). Advanced SQL skills with experience in performance tuning, data modelling ...

experienced Senior Software Engineer or Technical Lead who enjoys remaining hands-on while guiding teams and shaping technical solutions? A leading specialist technical consultancy is looking for a Software Technical Lead to join a live Central Government project. You will work within a collaborative Agile team, building bespoke ...

HKEX Group in London is seeking a Senior Engineer to design and implement complex software solutions in a fast-paced, regulated environment. You will liaise with analysts, owners, and architects to translate requirements into robust designs and code. Expect active participation in reviews, documentation, and deployment pipelines, with ...

offer you the chance to do it on a global scale and play a real role in shaping our exciting journey.The role As a Senior Software Engineer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services. This … backend-led full-stack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services and APIs. You will also contribute to modern web interfaces using technologies such as React and TypeScript. You will work ...

offer you the chance to do it on a global scale and play a real role in shaping our exciting journey.The role As a Senior Software Engineer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services. This … backend-led full-stack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services and APIs. You will also contribute to modern web interfaces using technologies such as React and TypeScript. You will work ...

Legal & General in London is seeking a Senior Engineer to join the Group Protection technology team, delivering modern cloud-based solutions across the full software delivery lifecycle. You will collaborate with stakeholders, mentor engineers, and help drive engineering excellence in a fast-paced environment. The role focuses ...

Citi is seeking a Senior Java Developer to join the Risk Data Team in a hybrid Belfast setting. You will build high‐impact software, design robust microservices, and own critical data pipelines that support risk management across the organization. Join a globally distributed team focused on clean code ...