senior java full stack developer jobs in London

Project descriptionBe one of the first applicants, read the complete overview of the role below, then send your application for consideration.Join a global technology team developing high-performance, low-latency platforms supporting critical trading and real-time processing workflows. The project focuses on building event-driven and reactive Java systems...

Sr. Full Stack .NET Developer – Security Remediation - Duration: 6 MonthsLocation: Toronto, Hybrid (3x/week)Overview:Responsible for analyzing, remediating, testing and validating security vulnerabilities identified through penetration testing and security assessments across legacy and modern .NET applications.Key ResponsibilitiesAnalyze and remediate...

Oliver Bernard is partnering with a global technology company to recruit a Senior Full Stack Engineer in Greater London. You will join a cross-functional team of engineers, product, design and QA, delivering high-scale, real-time systems from the ground up.Expect ownership, mentorship, and opportunities to shape architectural decisions in a high-velocity...

Global Grade - BAt Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting-edge solutions. Join us to drive transformation tailored to our client's challenges of today and tomorrow. Informed and validated...

Pairwise is seeking a Senior Full-Stack Engineer to join their dynamic team in Greater London. This full-time role involves architects and shipping core products using Python/Django and React. Candidates should have over 5 years of engineering experience with a strong focus on applied AI. Join a mission-driven company with competitive compensation and...

Senior II Full-Stack Engineer (back-end heavy) Location London Employment Type Full time Location Type Hybrid Department Engineering We power people’s progress. At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep...

Domain: High-Performance Computing / Low-Latency SystemsWe are looking for an experienced Java Developer with strong expertise in JVM tuning, concurrency, and low-latency system design to build and optimise high-performance, event-driven applications.The ideal candidate will have a strong understanding of Java internals, memory management, networking, and...

Senior, Forward Deployed / Full Stack Engineer (Document Authoring & Knowledge Systems)About GSK Enterprise AIEnterprise AI is GSK’s centre of gravity for applied artificial intelligence. We pair forward deployed engineers and full-stack engineers with scientific, clinical, and business teams to build AI products that get used — not pilots that get...

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 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 Engineer the future of global finance. At Citi, our...

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 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 Engineer the future of global finance. At Citi, our Tech...

You will our Investment Banking client on the Production Support team. This team manages a wide variety of deployed platforms and applications on behalf of engineering teams within the bank. The production support team has not traditionally built a lot of bespoke systems, so they are looking to add talented software engineers that can help them build...

Ellipse is an industry leader in collecting, analysing and delivering live sports performance data. We create innovative products and services across cricket, football, horse racing, rugby and tennis, helping fans, athletes and teams worldwide connect with the sports they love.The RoleWe're looking for a Full Stack Engineer to join our growing team, focusing...

Описание:AKA is a global entertainment agency working primarily with theatre, alongside museums, attractions, visitor destinations and live entertainment more broadly. You would join the Digital department, a team of over 60 people across Digital Media, Digital Product Development, and Data & Insights. You will sit in the development team, working...

We're recruiting an experienced Full Stack Developer to help build a greenfield trading platform for a financial services business.This is a full-stack role with a strong front-end/UI emphasis. You'll lead on responsive, real-time trading interfaces using Next.js and React, while also contributing to backend services, APIs and integrations.It is a 12 month...

11915SJRMarketFull Stack Developer – PHPWe’re looking for an experienced, site-basedFull Stack Developer(PHP) to help deliver innovative digital services and develop new platforms.Key responsibilities:Develop and maintain applications across the full stack.Build features using PHP (ideally Laravel), React and SQL.Support existing systems, APIs –...

ClearScore is seeking a Senior Full Stack Data Scientist to join the Data & Analytics team in London. You will own end-to-end data science and ML initiatives, shaping how targeting and content recommendations impact user experience.You will leverage advanced Python, SQL, and dbt, working with stakeholders across the business to deliver measurable...

ClearScore is seeking a Senior Full Stack Data Scientist to join the Data & Analytics team. You will own end-to-end data science and ML solutions across targeting use cases, collaborating with cross-functional partners to drive user-centric outcomes.You will stay at the forefront of ML/AI, exploring Foundation Models and production-ready deployments, while...

Annwn in the United Kingdom is seeking Full Stack AI Engineers to build agentic systems that make a difference. You'll work at the core of our platform, designing and implementing AI components that ingest and structure data, reason across complex domains, and run simulations.You will own meaningful parts of the architecture, influence design choices, and...

Lyst is a global fashion shopping platform founded in London in 2010 and catering to over 160M shoppers per year. We offer our customers the largest assortment of premium and luxury fashion products in one place, curating pieces from 27,000 of the world's leading brands and stores. In 2025, Lyst joined Zozo, operators of Zozotown, the leading fashion...

Talan is seeking a hands-on Senior Developer to join a high impact technology team responsible for risk, valuation, and decision support systems. You will work across the full stack, collaborating with business users and technical peers in an agile setting.Hybrid model: 3 days per week in the London office. You will design features across UI, backend, and...