senior java backend developer jobs in London

Job DescriptionJava Lead Programmer – London, UKTHE COMPANY: Leading Design Engineering Company. Specialist engineers to the energy sector.A fast growing, innovative and exciting company to work for, that offer excellent chances for technical and personal development.A lead development engineer role working in a very exciting, well funded start...

About Wheely Wheely is redefining premium transportation across major cities in Europe, the US, and the Middle East. We blend cutting-edge technology with the craft of five-star chauffeuring to deliver an experience trusted by more than 100,000 active riders and 1,200 corporate accounts. We’re a profitable, fast-growing scale-up with $43M raised and over...

Join the Growth Story at Envitia   Envitia operates at the heart of the UK’s most sensitive and high-profile operations. Our approach is entirely mission-focused, enabling customers to see more, decide faster, and act with confidence across complex domains.   We deliver situational awareness and information advantage across C5ISR, fusing cyber,...

A global financial services organisation is seeking a Senior Java Engineer to contribute to a vital enterprise platform. This hands-on role involves not only development but also shaping technical standards and collaborating with senior engineers to enhance platform quality. Ideal candidates should have strong experience in Java backend development and the...

KX Systems, Inc. is seeking a Senior/Intermediate Java Engineer to join its R&D team in a hybrid London/Newry/Belfast role. Focus on backend and middleware development with Java 17 and Spring, integrating with kdb+ in a distributed, high-availability system.The incumbent will implement authentication/authorisation, security best practices, and contribute to...

Code First Girls is seeking experienced Java developers to provide technical 1:1 coaching for Software Engineers working with our partner companies. This is a freelance role, designed to support graduates and/ or employees professional growth over a six-month programme while helping CFG address the gender imbalance in tech.Commitment: One or more hours per...

Adecco Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in...

Senior Software Engineer - Java, Node.js & AWS Build software that matters. Shape the future of engineering. We're looking for an experienced Senior Software Engineer - Java, Node.js & AWS who is passionate about building scalable, high-quality software and helping teams grow. This is more than a hands-on engineering role—you'll influence...

Overview The Senior Java Engineer at NCG will play a pivotal role in designing and implementing high-quality software solutions within the ITES sector. This role is crucial in driving technical innovation and ensuring the robustness, performance, and scalability of applications. Collaborating with cross-functional teams, the engineer will contribute to the...

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...

Contract: 6-month rolling contractStart Date: ASAPOverviewWe are looking for three experienced Senior Java Developers to join a high-performing engineering team delivering large-scale, cloud-native applications. You'll be working on modern distributed systems, building highly scalable services using Java, Kafka, AWS and Kubernetes within an Agile...

AI is being run everywhere, by humans and agents. Harmonic Security governs all of it. The AI Governance and Control (AIGC) platform understands user / agent intent and data context in real time, giving security teams visibility and control across every tool and workflow so companies can move faster with AI while minimizing risk.We operate in one of the...

🚀 We’re on a mission to make money work for everyone. We’re waving goodbye to the complicated and confusing ways of traditional banking. After starting as a prepaid card, our product offering has grown a lot in the last 10 years in the UK. As well as personal and business bank accounts, we offer joint accounts, accounts for 16-17 year olds, a free...

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...

Pontoon is hiring a Senior Full Stack Developer (Front End - Java / Angular / Solidity) for a London-based engineering team. This 12-month contract role is onsite five days a week, offering a salary of £50,000–£80,000 per year plus competitive terms.You will design and build scalable enterprise applications, deliver secure backend services in Java/Spring...

Company DescriptionAt ANDigital there’s a buzz. It’s the buzz of brilliant, curious people set free to imagine the impossible. A hubbub of ‘what ifs?’, ‘why nots?’ and ‘let’s trys’ all working together to push boundaries and create the future of digital.Job DescriptionANDigital is a new way for digital delivery.We are growing fast and...

The RoleAs a Senior Backend Engineer at Pynea, you will play a vital role in shaping and building our modern, collaborative, professional social network. Your mission is to leverage your expertise in backend development to design, develop, maintain and scale robust server-side solutions, ensuring seamless integration with our front-end systems. Collaborating...

Our vision From blockbuster films and AAA games to immersive experiences, the demand for photo-real 3D content has never been higher - but creating photorealistic assets is slow, expensive, and manual with no current scalable solution available. At M-XR, our mission is to democratise the creation of high-quality 3D assets and empower brands, studios, and...

Senior Backend Developer for Video on Demand and Live Streaming (GoLang) Contract 12 months OUTSIDE IR35 Remote (UK)If you are interested in applying for this job, please make sure you meet the following requirements as listed below.A leading video platform is seeking experienced Senior Backend Developers with expertise in GoLang to contribute to the...

Job Title: Senior Java Backend DeveloperLocation: London, UK – HybridJob Type: Contract – Inside IR35Note: No Sponsorship ProvidedMandatory: Strong in Investment BankingTechnology wise, their primary programming language is Java with Spring, DB2/Sybase for databases and Hazel cast/Redis as distributed cache.Role Profile:We are passionate and creative...