Java Full jobs in Watford

Location: UK (Hybrid / Onsite as required) Experience: 5+ years Role Type: Fixed Term Contract Overview We are developing a scalable Data Fabric platform that ingests, transforms, and serves trusted data products across multiple domains. The platform spans on‑premise and cloud environments and under

Senior Java Developer ( Contractor ) up to £850 inside IR- 35 We are seeking a highly skilled Senior Java Engineer to join a team building a next-generation OEM platform within a high-growth, global organization. This role sits at the core of a strategic platform build, focusing on developing scalab

We’re looking for a Senior Java Engineer to join a high‑performing Electronic Trading engineering team working on low‑latency, high‑throughput systems at scale. This role offers the opportunity to build and evolve mission‑critical trading platforms , working closely with trading, quant, and product

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 Live Casino platform, ensuring it can support high-concurrency gameplay, real-time interactions, and a distributed micros

hackajob is collaborating with Barclays to connect them with exceptional professionals for this role. Join Barclays as an IFC – Java Back End Engineer and play a key role in shaping the future of our technology landscape. In this position, you will help design, develop, and improve software using a

Contract Java Developer (SC required) South London HQ (Hybrid remote) Up to £485 p/d Inside IR35 Live security clearance required A leading Digital Consultancy client with offices around the U.K are looking to onboard a Java Developer with extensive Spring Boot and React experience to support their

Job Title: Strong Java Backend Developer Expected Work Experience: 5 to 9 Years Permanent Salary : 70K/annum Fulltime Including 10% Variable Location: Reading & Hybrid. SC Clerance is Preferred but eligible also work. Job Summary: As a Specialist II in Backend Development, you will leverage your

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing indus

Sanderson

Java Developer - multiple roles £510/day Inside IR-35 6 month contract Active SC required Remote with occasional travel to London for client meetings only - expensable We are looking for experienced fullstack Java Software Engineers to support projects across UK Government and Law Enforcement. You'l

Who we are: For over 25 years, Global Relay has set the standard in enterprise information archiving with industry-leading cloud archiving, surveillance, eDiscovery, and analytics solutions. We securely capture and preserve the communications data of the world's most highly regulated firms, giving t

Job Description Java Developer – Prime Brokerage ______________________________________________________________________ Location: London, UK Type: Full-time /Hybrid (3 days per week) Department: Technology _______________________________________________________________________ Summary eClerx Markets

Senior Java Developer | £85,000 - £95,000 We're working with a leading financial services technology vendor on this exciting opportunity. Are you ready to spearhead a flagship platform rebuild at the heart of London’s fintech scene? This is your chance to architect and deliver high-performance, auto

Booking and Messaging Java Developer | £600 - £625 We're working with a global titan in electronic trading and financial markets infrastructure on this exciting opportunity. We are looking for a heavyweight Java Messaging Engineer to sit at the heart of an "eBond" ecosystem, managing high-throughput

Location: UK (Hybrid / Onsite as required) Experience: 5 years Role Type: Fixed Term Contract Overview We are developing a scalable Data Fabric platform that ingests, transforms, and serves trusted data products across multiple domains. The platform spans on‑premise and cloud environments and underp

Full Stack Developer Opportunity We are looking for a strong full-stack Java engineer who can modernize legacy business logic and build intelligent AI-driven agents to support system displacement and workflow automation. The role requires hands-on Java expertise, solid understanding of Oracle-based

Tesco

About the role We are in the process of building and rolling out our next generation, dynamic, scalable, and resilient Fulfilment platform for Tesco, to address both manual, and robotic powered automate fulfilment operations, across all the customer order fulfilment locations. This highly optimized

Job Description: Java Backend Developer. As a Specialist II in Backend Development, you will leverage your expertise in Java 17/21 and Java EE library migrations to enhance and upgrade middleware systems. Your role will involve working with Oracle 19C databases and ensuring seamless SOAP/REST integr

Date live: 20/04/2026 Business Area: Group Economic Crime COO Area of Expertise: Technology Contract: Permanent Reference Code: JR-0000083628 Join Barclays as an IFC – Java Back End Engineer and play a key role in shaping the future of our technology landscape. In this position, you will help design

hackajob is collaborating with Tesco to connect them with exceptional professionals for this role. About The Role As a Principal Software Development Engineer within the Supply Chain & Fulfilment domain, you’ll drive the technical direction of some of Tesco’s most critical services. You’ll colla

Join a specialist consultancy delivering secure, high-impact software solutions at the heart of national security and intelligence operations. This role plays a key part in building the systems that turn complex data into actionable insight. Role Overview: Location: Cheltenham, London or Manchester