1 to 25 of 118 Permanent Java Developer Jobs in London

Java Developer (Market Data) – Java, SpringBoot, Pricing, Risk Systems, Market Data, Trading, Clearing, Post-Trade, Financial Services - London - Up to £850p.d Inside IR35 Via Umbrella My Client, a global Financial Services organisation based in the City are searching for a Senior Java Developer to join … engineering in which you will be responsible to design and develop systems to leverage and audit market/Reference data feeds. As a Senior Java Developer, you will undertake a mixture of server-side development in Java & SpringBoot, partnered with being a part of business facing initiatives ...

Senior Java Developer - Digital & Public Services A growing digital consultancy delivering complex, high-impact services into the public sector is looking for a Senior Java Developer to join its engineering capability. This is an opportunity to work on meaningful projects, contributing to the development of scalable … nature of the work, candidates must either hold current SC Clearance or be eligible to obtain SC Clearance . The Role As a Senior Java Developer, you will play a key role in the design, development, and deployment of modern digital services. You will work on complex systems ...

Java Developer/Backend Software Engineer (Kafka API) London/WFH to £90k Are you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career? You could be joining a global technology consultancy. What … your family, including mental health Travel Insurance Charitable giving Gym membership for you and your family Flexible holiday scheme Your role: As a Java Developer you will design, develop and deliver a range of transformational projects for clients, mainly within the financial services sector and with a focus ...

Java Developer – Front Office/Trading Systems Join MARGO in the UK (London) – Perm & Contracting Opportunity* MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry. We specialise in complex software engineering environments where performance, robustness and scalability are critical … join the Front Office/Trading IT environment of one of our tier-1 investment banking partners. The teams design and maintain mission-critical Java systems supporting electronic trading activities across multiple asset classes (e.g. Equities, Fixed Income, Commodities, FX, Derivatives). Real-time and event-driven architectures High ...

Lead Java Developer - 12 Month FTC Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. Weve been helping organisations build better digital products and stronger digital teams since 2014. We believe our work should always … Join us - and help us fulfil our mission to close the worlds digital skills gap. The Role We are looking for an experienced Lead Java Developer to join our engineering team and play a key role in the design, development and operation of cloud-native services within ...

Lead Java Developer - 12 Month FTC Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been helping organisations build better digital products and stronger digital teams since 2014. We believe our work should … help us fulfil our mission to close the world’s digital skills gap. The Role We are looking for an experienced Lead Java Developer to join our engineering team and play a key role in the design, development and operation of cloud-native services within our clients Accounts ...

Role: Principal/Senior Java Developer – Elite FinTech Rate: Up to £750 per day Location: London Working Pattern: Hybrid Contract: Contract The Role They are looking for an exceptional Principal/Senior Java Developer to join a high-calibre engineering team, working alongside some … work on high-scale, business-critical technology at the intersection of financial services and next-generation digital assets. Requirements Strong commercial experience with Java Extensive experience developing server-side Java applications Strong software engineering fundamentals Experience working on complex, high-scale systems Strong understanding of application architecture ...

Role Role : Principal/Senior Java Developer – Elite FinTech Rate: Up to£750 per day Location :London Working Pattern :Hybrid Contract :Contract They are looking for an exceptional Principal/Senior Java Developer to join a high-calibre engineering environment, working alongside some of the industry … strongest developers, architects and technical leaders. Responsibilities Design and develop high-performance server-side Java applications Work across both greenfield and complex brownfield environments Take ownership of significant technical challenges and drive solutions through to completion Collaborate with highly experienced engineers, architects and product specialists Translate complex business requirements ...

## Senior Fullstack Developer — Java or Kotlin, React and TypeScriptApplylocations: London: Manchestertime type: Full timeposted on: Posted Todayjob requisition id: JR100892Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation … chance to do it on a global scale and play a real role in shaping our exciting journey.**The role**As a Senior Fullstack Developer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services.This is a backend ...

Java Developer (London, Hybrid) Location: London UK Working Mode: 3 days on site in City of London IR35 Categorisation: Inside Rate: £600 per day We're looking for a Java Developer to join our client (Investment Banking) in a hybrid working model (London, 3 days … office processing Provide technical expertise and recommendations for enhancements of existing applications and evaluation of new initiatives Develop clean, secure, and efficient code in Java and Python and work with scripting tools such as PowerShell or Bash Conduct code reviews, unit testing, and participate in application architecture discussions Ensure ...

currently inviting applications for this role. Applicants must have the right to work in the UK and the ability to pass BPSS vetting. Software Developer (Java) Mercator Digital is looking for a Software Developer (Java) to be part of our growing consultancy. … bring out the best : Sharing knowledge and helping everyone grow What we’re looking for Mercator is seeking a dynamic, forward-thinking Software Developer with excellent communication skills who can help Mercator in its continued transformation. You will be open-minded, happy to work on your ...

innovative and high-quality technology solutions while supporting the continued growth and development of our professional workforce. Role Overview: We are seeking a Senior Java Developer to join our Core Platform Team. This role is critical to building and maintaining the scalable backend infrastructure of our back office … system platform, ensuring it can support high-concurrency gameplay, real-time interactions, and a distributed microservices architecture. As a Senior Java Developer , you will architect and develop backend systems that power our games, player management, reporting tools, and third-party integrations. You will work closely with Product Owners ...

Senior Java Engineer (Contract) – Greenfield Fintech Platform Location: London/Hybrid (1 day/week in office) About the Role We are seeking an exceptionally skilled Senior Java Contractor to join a high-impact team building a next-generation algorithmic trading engine. You will work on low-latency … high-throughput microservices, owning features from architecture design to production deployment. Key Responsibilities Architect, build, and optimize scalable back-end services using Java 21+ and Spring Boot. Partner with product and risk teams to deliver resilient event-driven architectures. Drive engineering best practices, including TDD, automated CI/ ...

Backend Java Developer – City London We are urgently looking to recruit a Java backend Developers with at least 5 years experience. Must have strong Data structures and Algorithms experience. Also experience of Spring, working with large code base, SQL, Unix etc. You should ideally have a solid ...

Java Developer with SQL Server – Central London Our Client is looking to recruit a seasoned professional with 5 plus years experience in developing with Java as a backend Developer with SQL Server. You will have a good understanding of Data Structures and Algorithms. In addition … Java and SQL Server development skills you should working knowledge of Spring, working with large code base, SQL, Unix etc. In addition you will have solid problem solving and algorithm skills. Excellent communication skills both spoken and written. This is a 6 months assignment based in Central London. ...

Description We are seeking a motivated and enthusiastic Junior Java Developers to join our software development team. As a Junior Java Developer, you will work closely with senior developers and team members to design, develop, and maintain Java-based applications. This is an excellent opportunity … supportive environment. The successful candidate must be eligible and willing to go through SC/DV clearance. Key Responsibilities Develop, test, and maintain Java-based applications according to project requirements. Collaborate with senior developers to design and implement new features. Participate in code reviews and provide constructive feedback. Troubleshoot ...

Senior Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Team Background The Derivatives Credit Risk Technology … Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency. Ideal background Core Java experience developing robust, scalable, and maintainable applications applying Object Oriented Design principles. Experience working in the Capital Markets domain. Good understanding of Derivatives ...

this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time. We are looking for a dedicatedMiddle Java Developer to join our team in London! About the job: This is a rare opportunity to shape how data-driven decision-making works … much about influence and expertise as it is about analysis. What You'll get to do: Develop, maintain, and enhance microservice applications using Java 21+ and Spring Boot. Design and implement scalable, resilient, and high-performance solutions. Work with relational and OLAP databases, writing efficient SQL queries in PostgreSQL ...

looking for an experienced Java professional to join a strategic migration program involving the modernization of existing applications onto a cloud-native technology stack. The role requires strong technical expertise, architecture understanding, and domain knowledge within booking and movement management systems. This role would suit a Senior Java Developer, Technical Lead, or Agile Technical Lead who can combine strong hands‐on engineering skills with architecture and domain understanding. Mode: This is the on‐site position, 5 days a week work from office London (Canary Warf). Responsibilities: Design and develop scalable microservices using Java ...

London | Electronic Trading | Java | Low Latency We're working with a technology-driven trading business looking for a hands-on Java Developer to build and enhance high-performance electronic trading systems. You’ll work closely with traders and quantitative developers, building systems where latency, performance and reliability … directly impact trading outcomes . What you’ll be doing Designing and developing low-latency, high-throughput Java trading systems Building pricing, hedging, risk and algorithmic execution components Working directly with traders and quantitative developers Developing market-data and order gateways Integrating quantitative models into production trading systems Working ...

Atos is seeking a skilled full-stack Java developer to join a team delivering enterprise applications with Java, Spring Boot, and React UI. The role emphasizes microservice architecture, API-led integrations, and modern DevOps practices in a secure cloud environment. You will work in an agile setting ...

Java Developer (Hybrid 1-2 days a week on-site in London) We’re on a mission to close the world’s tech skills gap. We help organisations navigate the future of technology, combining human expertise, emerging tech and AI to deliver better outcomes, faster. Since … bring to the table: Work on large-scale, multiple industries, eCommerce and enterprise-level software development projects using languages and technologies such as Java, SpringBoot, AWS, MySQL and more Champion software quality and technical vision for AND and our clients A minimum of two years professional experience in software ...

Lead Java Developer - 12 Month FTC Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. Weve been helping organisations build better digital products and stronger digital teams since 2014. We believe our work should always ...

Morson Edge (Financial Services) in London is seeking a Senior Java Developer to join the post-trade engineering team on a contract basis. You will design and develop market data and reference data feeds, building robust Java/SpringBoot microservices and REST APIs. The role focuses ...

Morgan Hunt UK Limited is recruiting a Senior Full Stack Java Developer for a 6-month contract (likely extension) with a UK remote arrangement. You will join a government organisation, working in an Agile, cross-functional delivery team to build cloud-native applications using Java 21, Spring ...