java swing developer jobs in London

Role: Software Developer (Mid-Level) Location: London Salary: Competitive + Compensation Package The role On behalf of a highly regarded fintech organisation, we are partnering to find an experienced Software Developer to join their engineering team in London. This role is suited to an engineer with a strong foundation in building production systems who is...

# Java Backend Developer,November 30, 2025### Job Description**On behalf of our client, we are seeking a Java Backend Developer – London, UK (Full-Time Permanent Role).**Our client, a fast-growing technology organisation, is looking for a skilled Java Backend Developer to build secure, scalable backend services and high-performance APIs supporting modern...

Addition Solutions is seeking an experienced Backend Developer (Java/Spring Boot) for a fully remote contract. The role focuses on building scalable backend services, REST APIs and microservices in a high-volume environment. You will work with Java and Spring Boot, delivering reliable and efficient backend systems.Prior experience in iGaming, FinTech or...

Job Description Senior Calypso Software Developer - London Our Client is seeking a Senior Calypso Software Developer with 3 to 5 years experience. Calypso V14 as its Collateral Management system and are investigating introducing further business lines like cash management, FX and securities. The Client are looking to build a team of support analyst and...

Get AI-powered advice on this job and more exclusive features. Java Engineer – Java Developer – PostGres – Kubernetes – Kafka – TDD – 6‑Month Contract – Hybrid (2 days on site, London) – Day Rate: Up to £700 (Inside IR35) Join a high-performing engineering team working on large-scale, high-availability systems used by millions. This role...

Who we areCreateFuture is fast becoming the UK’s most recognisable digital consultancy, with years of experience building digital products and services for major organisations whilst putting our people first. We have offices in the centre of Edinburgh, Leeds, Manchester, and London as well as remote employees located throughout the country.We are a team of...

## Lead Java DeveloperApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 26949717**Discover your future at Citi**Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll...

Senior Java Analyst Developer / Technical ConsultantQuant Capital is urgently looking for a Java Analyst Developer / Technical Consultant to join our high profile client.Our client is a global trading platform software business. Its products are used globally by most asset managers and pension funds. They are well known in the fintech space and have offices...

Who We Are: We are a fast growing business and technology consultant company co-founded in 2019. We offer a custom‑tailored, white‑glove engineering service fit for our clients, because a digital transformation is more than just technology. With a successful track record of being a preferred vendor for Fortune 500 companies and as a trusted partner for...

Low Latency Java EngineerEngineer 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 through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that...

Software Engineer – C# / Java Key Technologies: C# and or Java Developers needed. London Perm Role | 3 Days a week in the office. £55,000 - £65,000 Harrington Starr has partnered with a well-established Financial Consultancy to find a Full Stack Developer at the Associate level. This is a hands‑on development role, supporting a range of internal...

Nomura Holdings, Inc. seeks an Algo Developer for a 6 to 12 month contract in London. The role involves designing and developing algorithmic trading systems and requires expertise in Java and collaboration across teams.The ideal candidate will have a bachelor's or master's degree in computer science or engineering, and experience in algorithmic trading. Join...

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization. Location: London, Hybrid 2 days a week from Office Role Summary We are seeking an experienced Java Backend Developer to design, develop, and support scalable enterprise...

Job Title: Java DeveloperRate: £475 - £525 per day inside ir35Location: RemoteContract: 6 months rollingSC ClearedWe're looking for an experienced Java Developer to join a remote development team working on a Home Office project, building and enhancing secure, scalable Java applications and services.You'll work across Java, Spring Boot, REST APIs and...

Fullstack Java Developer2026-09-18T00:00:00LondonGreater LondonGBEC2V 8Any2026-12-17T07:02:20.303hackajob is partnering directly with Atos to hire for this role. Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and...

Responsibilities Development & Coding: Collaborate with lead and also Lead the development with mid level developers and implementation of scalable and high-performance Java-based applications. (This post will have more than 80% focus on this). Architecting Solutions and design: Collaborate with cross-functional teams to design and implement robust software...

A prominent UK technology organization is looking for a Mid-Level Software Engineer to join their team in London. The role focuses on developing and maintaining Java-based microservices in an AWS environment, and involves hands-on coding, collaboration, and problem-solving. The ideal candidate will have strong cloud service experience and be proficient in...

Overview Base pay range: Direct message the job poster from Caspian One. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Job title and location Java & low-latency talent specialist | Financial technology markets | FX, Equities & Rates | Delivery Consultant at Caspian One Location: London, UK Business...

Salary: £30,000 - 50,000 per year Requirements: Core Java skills, including object-oriented programming, collections, exception handling, and concurrency Experience building and deploying event-driven and RESTful APIs Foundational knowledge of SQL and relational database design Hands-on experience with Linux-based server environments Scripting experience...

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Lead Software Engineer at JPMorganChase within the ETF Technology team in EMEA, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and...