Java Full jobs in St Albans

esponsibilities Engineering Standards & Code Quality Define and enforce Java and Node.js engineering standards across the team, with a strong emphasis on robust exception handling, binary stream processing, structured logging using Application Insights, and security‑first development practices.

Lead & Senior Software Engineer | Fintech Accelerator | London | Scale-up Impact The Opportunity Born from the successful launch of a major digital bank, we are hiring a high-growth venture team with a fresh mission. Building products that solve real-world financial problems by putting the custo

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

eFinancialCareers

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 have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Engi

eFinancialCareers

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 have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Engi

Citigroup

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 through our network. We do business in 180 countries operating at a scale few can match. From deploying advanced AI to helping shape global marke

eFinancialCareers

Senior Java Backend Developer (Contract) Location: London (Hybrid) Rate: £650 - 700 per day (likely inside IR35) A leading global financial institution is seeking a Senior Java Backend Developer to join a high-performing engineering team, delivering scalable, data-intensive backend systems that supp

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

Job Title: Java L3 Support Location: London, UK Job Type: Contract Job Summary: We are looking for a skilled Java Developer with strong L3 Production Support experience to join our team. The ideal candidate should have expertise in Core Java, SQL, and UNIX , with a strong ability to troubleshoot com

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

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

JD : JAVA Security Analyst Location - London Work mode - Hybrid What you will be doing: • Investigate and resolve security findings across multiple versions of SFTC • Ensure false positives are properly explained to central security team and approved as false positives • Upgrade dependencies both Ja

McGregor Boyall

£160,000 - £190,000 /year

London | Hybrid (3 days onsite) Top-tier Investment Bank (Global Markets) £160k-£100k base bonus benefits Build the engine behind a $trillions-per-day market This isn't another backend Java role. This is about sitting on the critical path of FX pricing , where microseconds matter, decisions are real

Job Description (JD) Role Title: Lead Software Engineer (Java / Spring Boot) Location: London, UK (Hybrid – 3 days WFO) Contract Duration: 9 Months Role Overview We are seeking a hands-on Lead Software Engineer with strong expertise in Java, Spring Boot, and Microservices architecture . The ideal ca

Citigroup

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 through our network. We do business in 180 countries operating at a scale few can match. From deploying advanced AI to helping shape global marke

JAVA Security Analyst Location - London Work mode - Hybrid What you will need: • At least 7+ year’s hands-on professional experience in the Java enterprise environment. • Experience building enterprise financial solutions. • Experience with Agile and test-driven development. • Experience in working

As a Senior Software Engineer (Backend), you will play a key role in designing and building scalable, cloud-based services using Java and Spring Boot. You’ll work closely with your manager, architecture team and teammates to deliver high-quality backend systems that power critical business functiona

Company Description Genomics England is a global leader in enabling genomic medicine and research, focused on creating a world where everyone benefits from genomic healthcare. Building on the 100,000 Genomes Project, we support the NHS’s world-first national whole genome sequencing service and run t

Harvey Nash

£8,400 - £9,600 /year

Senior Java Developer - Multithreading/caching - sought by leading investment bank based in London - Contract *inside IR35 - umbrella* Key Responsibilities Develop and maintain high-performance backend services for complex data processing workloads. Design scalable architectures for large-volume cal