Senior Full Stack Java Developer jobs in Hatfield

Deloitte

Job Title: Full Stack Developer (Java, Spring, React) - contract Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35) Deloitte Working with the Deloitte

Who you are Solid commercial development experience with strong proficiency in Java and Spring Boot, alongside hands-on experience building end-to-end full stack applications (frontend, backend, and APIs) Python (agent services, orchestration, LLM integrations) Experience working with modern fronten

We're representing a leading global hedge fund as they look for a strong Java Developer with Post-Trade, OTC experience. This role sits within a high-impact engineering team responsible for building and scaling systems that power pricing, risk analytics, and trade processing for complex OTC products

Job Description Develop and maintain robust Java applications using Spring and Spring Boot frameworks Design and implement microservices architecture to build scalable and efficient backend solutions Write clean maintainable and efficient code adhering to industry best practices Utilize Kotlin along

Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP \*note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35) Deloitte Working with the Deloitte Associate (Co

Who We Are? ITC Infotech is a leading global technology services and solutions provider, led by Business and Technology Consulting. ITC Infotech provides business-friendly solutions to help clients succeed and be future-ready, by seamlessly bringing together digital expertise, strong industry specif

Senior Java Developer x 3 | £825 - £850 We're working with a prestigious Tier-1 Investment Banking powerhouse on this exciting opportunity. Step into a high-octane environment to spearhead the evolution of business-critical systems within the Equity Derivatives space. This is a rare chance for elite

Key Responsibilities 1. Full Stack Development Develop scalable, secure, and maintainable applications using Java (Spring Boot) for backend and React.js for frontend. Architect and implement RESTful APIs and microservices. Collaborate with cross-functional teams to deliver high-quality software solu

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

Job Title: Full Stack Developer (Java, Spring, React) - contract Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP \*note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35) Deloitte Working with the Deloitt

Full Stack PHP/Python Developer | £50,000 - £55,000 We're working with a leading enterprise SaaS platform on this exciting opportunity. Are you a versatile developer looking to join a powerhouse in the business software space? We are looking for a high-impact engineer to scale a sophisticated softwa

Role : Senior Java Developer (Security) Location : London, UK 2-3 Days Onsite Per Week Contract Inside IR35 - 6- 12 Months (Possibility of extensions) Skills Set : Application Security with Vulnerability What you will be doing: • Investigate and resolve security findings across multiple versions of

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 mark

Basic information Location London Business Line Technology & Transformation Job Type Contract Date published 02-Apr-2026 Req # 22950 Job description Job Title: Full Stack Developer (Java, Spring, React) - contract Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11

Seeking a Specialist with hands on years of experience in Java Frameworks and Kotlin to develop scalable and efficient backend solutions using Microservices Spring and Spring Boot Job Description Develop and maintain robust Java applications using Spring and Spring Boot frameworks Design and impleme

About Us:- Net2Source Inc. is one of the fastest growing diversities certified global workforce solutions companies with an unprecedented YoY growth of over 100% for last 6 years working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe

About Quantumloopai QuantumLoopAI is transforming how patients access NHS primary care. Our AI-powered reception system, EMMA, serves millions of NHS patients, helping GP surgeries manage demand, reduce phone queues, and ensure patients get the right care at the right time. Backed by leading healthc

Full Stack Software Engineer, £50-85k, 3 days per week in London - Ground-breaking Fitness tech! About Us MAGIC AI is an elegant in-home health coach that utilises computer vision, connected weights, and 3D cameras to provide personalised training sessions led by world-renowned athletes. We have gai

Full Stack Software Engineer, £50-85k, 3 days per week in London - Ground-breaking Fitness tech! About Us MAGIC AI is an elegant in-home health coach that utilises computer vision, connected weights, and 3D cameras to provide personalised training sessions led by world-renowned athletes. We have gai

Mindera

Job Description: We have an exciting opportunity for experienced Java developers to join our team! You will have a passion for software development and an excellent understanding of how to define and deliver solutions iteratively and collaboratively. You will be involved in all areas of delivery, wi