172,134+ Lead Java Application Developer Java Web Tech Jobs in London, UK — Local Employers Hiring June 2026

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Senior Full Stack Cloud Native Developer (OTC Team), Charles River Development, Assistant Vice [...]

Who We Are Looking For We are seeking a full‑stack, cloud‑native engineer to enhance and maintain our Enhanced OTC Module. This includes building a modern JavaScript front end and a Java‑based backend deployed on Azure Cloud. You will also support both customer‑facing and internal teams t ...

Senior/Principal Software Engineer Secure Cloud (SC/DV)

Gemba Advantage is seeking a Senior/Principal Software Engineer to design and deliver secure, scalable software solutions while working in small agile teams. The role requires active SC or DV clearance and entails championing modern engineering practices, shaping architectural direction, and influencing technica ...

Site Reliability Engineer: Scalable Cloud & Fault Tolerance

A leading fintech company in London seeks a Site Reliability Engineer to maintain robust production infrastructure for their innovative core banking and payments platforms. The role involves collaborating with product engineering teams to enhance reliability, contributing to disaster recovery strategies, and mai ...

Research Grant Application Assistant

Join Our Team as a Research Grant Application Assistant!Are you passionate about education and research? Do you thrive in a dynamic environment where your skills can make a real difference? If so, we have an exciting opportunity for you! We are seeking a motivated and detail-oriented Research Grant Appli ...

Dev Ops Engineer

Looking for DevOps Engineers with strong software engineering understanding. Khuda Technology has partnered up with a client who seeks Software Engineers with strong development and DevOps skills. You’ll construct and maintain the Software Development Environment, collaborate globally for system av ...

VP Software Engineer, AI Driven Cloud Trading Platform

Goldman Sachs Group, Inc. is seeking a Vice President Software Engineer based in London to join its Global Banking & Markets division. This role involves designing and implementing a cloud-native platform for Equities Trading, driving strategic transformation through AI tools, and developing high-availability se ...

Senior Applied Scientist, AWS Automated Reasoning

DescriptionSr. Applied Scientists in AWS Automated Reasoning are dedicated to making AWS the best computing service in the world for customers who require advanced and rigorous solutions for automated reasoning, privacy, and sovereignty. Key job responsibilitiesThe successful candidate will: ...

Solutions Architect

About Vercel: Vercel gives developers the tools and cloud infrastructure to build, scale, and secure a faster, more personalized web. As the team behind v0, Next.js, and AI SDK, Vercel helps customers like Ramp, Supreme, PayPal, and Under Armour build for the AI-native web. Our mission is ...

Junior Software Developer

London, England or Remote Working / Permanent Full Time Position Looking to move to a Fintech company with a worldwide brand in stocks and options trading? This exciting role is for the talented software developer professional. We are looking for an experienced, highly-driven, suc ...

Software Engineer

Software Engineer to oin a fast-growing Banking SaaS provider building next generation core banking technology.We are looking for Software Engineers with experience in Node.js / TypeScript / JavaScript, .NET / C#, or Java.You will work directly on customer problems, understand the business context and ow ...

Backend Software Engineer Recurring Payin

Full-time Compensation: GBP 68,000 - GBP 87,500 - yearly Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. Whether people and businesses are sending money to ...

Guidewire Architect

Guidewire Architect - Insurance Technology We're hiring an experienced Guidewire Architect to lead enterprise-scale insurance transformation programmes across Guidewire InsuranceSuite environments. This role is ideal for a technical leader with strong Guidewire architecture, integration, ...

Senior Software Engineer, CalcGraphs Vice President

**Team Overview** XiP is building a next-generation cross-asset calculation system for Citi trading desks and enterprise users in the largest global financial markets and exchanges in New York, London, and other major financial hubs. Our team owns multiple Java Spring Boot Services that execute ...

Senior Software Engineer I Account Communications

Job DescriptionTeam you'll be working in: Account CommunicationsWe are looking for a Backend Engineer to join the Account Communications team. We own the platform that delivers millions of customer communications every day — emails, push notifications, in-app messages ...

Linux Software Engineer

Job DescriptionAs a Backend Software Engineer you will join our team in London and  be responsible for designing, building, and supporting high‑reliability software platforms used to supervise and control complex, remote systems. The role focuses on developing ...

Senior Software Engineer I Account Communications

Job DescriptionTeam you'll be working in: Account CommunicationsWe are looking for a Backend Engineer to join the Account Communications team. We own the platform that delivers millions of customer communications every day — emails, push notifications, in-app messages ...

Linux Software Engineer

Job DescriptionAs a Backend Software Engineer you will join our team in London and  be responsible for designing, building, and supporting high‑reliability software platforms used to supervise and control complex, remote systems. The role focuses on developing ...

Lead Platform Engineer — Hybrid (London) AWS & Kubernetes

A leading tech recruitment firm seeks a Lead Platform Engineer to design and expand a cutting-edge internal platform on AWS EKS. This role demands extensive Kubernetes knowledge and strong software engineering skills. You will lead a globally distributed team, enhance the developer experience, and drive architec ...

Head of Brand Marketing

Overview Ohme is on a mission to accelerate the global transition to clean, affordable energy. We do that by serving as an integrated hardware and software smart-grid platform, focused on the residential EV charging market. The worlds of energy, transport and artificial intelligence are c ...

Senior Cloud Native AI Engineer (Full Stack)

A leading tech solutions provider is seeking a Senior Application Engineer / Developer to build AI and cloud-native applications. The role involves modern software delivery and requires strong full-stack engineering experience. Ideal candidates will have hands-on expertise with various programming languages and ...

Applied Scientist, Alexa International Tech

The Alexa International Tech (AIT) team is looking for a passionate, talented, and inventive Applied Scientist with a strong deep learning background to build industry‑leading Generative Artificial Intelligence (GenAI) technology with large language models (LLMs) and multimodal systems. The role focuses on ...

Lead Software Engineer (DevEx)

Overview At On, we believe technology should move as fast as a runner. We are building the foundation that allows our engineering organization to scale, innovate, and deliver value without friction. We are looking for a Senior or Lead Software Engineer to join the Developer Experience (De ...

Infrastructure Operations Lead

Overview Are you a seasoned leader with a knack for navigating complex technical landscapes? Thriving in dynamic, live environments where agility and quick thinking are paramount. As an Infrastructure Operations Lead, you'll step into a pivotal leadership role where you'll blend hands‑on technica ...

Enterprise Architect

Role: Enterprise Architect Type: Full-time, permanent Industry: Manufacturing (packaging) Location: London (hybrid) Salary: £95K Overview We’re supporting a large organisation undergoing significant transformation, looking to appoint a senior technology/ent ...

SAP Technical Architect

Is it Permanent / Contract: Open for both Perm/Contract Is it Onsite/Remote/Hybrid: 4 days per week from office for the first few months and then 3 days per week from office Job Description: SAP Technical Arch role (Onsite) Key responsibilities Own tech ...

Software Tools Engineer

For over four decades, Cirrus Logic has been propelled by the top engineers in mixed‑signal processing. Our rockstar team thrives on solving complex challenges with innovative end‑user solutions for the world's top consumer brands. Cirrus Logic is also known for its award‑winning culture, built on a founda ...

Full Stack Engineer

Product and Engineering Reporting to Senior Full Stack Engineer We're not just closing the digital divide; we're reconnecting distributed organisations, enabling seamless communication, and re‑engaging employees like never before. Blink, a mobile‑first employee experience platform, puts e ...

12 Month Internship eFX IT Developer

We are seeking a Developer with strong communication and customer-facing skills to join our team in London. This role offers the opportunity to work closely with front office users, including traders, risk analysts, and operational staff, in the dynamic field of foreign exchange trading. The ideal candidat ...

Golang (Polyglot) Software Developer

About Us Food waste is a $1 trillion problem – costing the world more than 1% of global GDP. We're dead set on solving this problem and looking for people to help us achieve our mission. At Winnow, we believe that food is far too valuable to waste, and that technology can transform the way we pro ...

Video Quality ML Engineer – Real Time Vision

A renowned multinational company in the UK is looking for a Machine Learning Engineer specializing in Video Quality Analysis. In this role, you will design and implement algorithms to detect defects in video quality using advanced computer vision and machine learning techniques. The position emphasizes optimizin ...

Lead Execution Strategy Quant & Real Time Algo Engineer

Citi's Electronic Execution & Algo Trading Quant team seeks an execution strategist to create and maintain algorithmic trading systems. Candidates should have 10+ years of experience, strong Java or C++ skills, and a deep understanding of market microstructure. The role focuses on algorithm designs, qu ...

Senior Software Engineer AI/ML & Hybrid UK

8th Light is seeking a Senior Engineer to join our team in Waterloo, London. This hybrid position allows for one day per week in the office, promoting collaboration and innovation. We are looking for candidates with over 4 years of experience in software development, who are familiar with languages such as Py ...

Staff Platform Engineer – Core Cloud Platform

Fanatics is seeking a Staff Platform Engineer to join our Platform Engineering team based in the UK or Ireland. This role is essential for overseeing the platforms that power Fanatics Betting & Gaming’s software ecosystem. Responsibilities include driving technical design, architecting cloud-native platforms on ...

Applied Scientist, AI Driven Formal Verification

Amazon is looking for an Applied Scientist in London to join the Agentic Automated Reasoning Group. This role involves working on advanced software verification tools leveraging artificial intelligence and cloud capabilities. The candidate will engage in projects spanning from infrastructure verificati ...

Sr. Gen AI Architect

Minimum of 7 years of experience in AI/ML architecture or a related role. Proven experience in designing and deploying generative AI models and solutions. Hands-on experience with AI frameworks and tools such as TensorFlow, PyTorch, Hugging Face, etc. Experience with cloud plat ...

Macro Quant Research Software Engineer Analytics

Mondrian Alpha is seeking a Research Software Engineer to join their Quantitative Technology team in London. The candidate will be trusted to work autonomously from day one, integrating automated LLM workflows and building low-latency macro-economic modeling tools in Python. The ideal individual should ...

Mission Critical Software Engineer (Secure Cloud/API)

Envitia is seeking a skilled Software Engineer to design and maintain secure software applications in classified environments. The role involves working within Agile teams to deliver scalable solutions across various technology estates. Candidates must hold a high-level security clearance and have experience ...

Infrastructure & Automation Tester (Manual & Auto)

CBSbutler Holdings Limited trading as CBSbutler is seeking an experienced Tester (Manual & Automation) to join their team in London. The role requires a balance of manual and automation testing within a hybrid working environment, supporting travel to client sites. You will be involved in testing appli ...

Generative AI Solutions Architect

Test Yantra is seeking an experienced professional for a role in AI/ML architecture. The ideal candidate will have a minimum of 7 years of experience in designing and deploying generative AI models. A strong proficiency in programming languages such as Python, Java, or C++ is crucial. Experience with c ...

Lead Generative AI Architect — Cloud, Scale & Ethics

eappstechnologies is seeking a Senior Generative AI Architect to design, develop, and implement cutting-edge generative AI solutions in London, UK. The role demands leadership in architecture and deployment of AI models, ensuring scalability and ethical considerations in all AI initiatives. The ideal c ...

Engineering Manager Lead Cloud Native Teams (Hybrid)

Virgin is looking for a hands-on leader for their engineering teams to drive the development of cloud-native services and impactful customer experiences. This role involves leading multiple full-stack teams, ensuring quality in engineering practices, and partnering with cross-functional teams. The ideal candidat ...

Senior Real Time Streaming Platform Engineer

CrowdStrike Holdings, Inc. is seeking a Senior Software Engineer for their Real-Time Streaming Platform team. This role focuses on building scalable streaming services that enable real-time data processing capabilities. You will contribute to the infrastructure that directly impacts security telemetry process ...

Senior Software Engineer, Margin Tech — AVP (Hybrid)

Citigroup Inc. is seeking a software engineer to join their global technology team in Greater London. The role involves building technical solutions to complex business problems while contributing to a strong engineering culture. Candidates should possess strong programming skills primarily in Java, React, an ...

Platform Engineer: Build the Global Risk Platform

Wise is looking for a Platform Engineer to join their Risk Domain team in Greater London. In this role, you will design systems that support safe global product launches and create foundational services. You'll work on a centralized risk platform that enhances data unification across vital functions like frau ...

Senior Software Engineer, Margin Tech – AVP (Hybrid)

Citibank (Switzerland) AG is seeking a Senior Software Engineer in London to join their Margin Technology team. This role involves solving engineering challenges while collaborating closely with product teams to deliver high-quality software solutions. The ideal candidate will have a Bachelor's degree ...

Senior Software Engineer — AI Driven Trading Platform Lead

Citibank (Switzerland) AG is seeking a Senior Software Engineer (SVP) based in London. This role involves hands-on design and implementation of the STIRT platform, where you'll engage deeply with traders and manage a talented global engineering team. You'll drive technology evolution with a strong focus on in ...

Senior GenAI Platform & MLOps Engineer

American Express Global Business Travel is looking for a Senior AI Platform Engineer to design and build scalable AI and ML infrastructures. This position involves collaborating with data scientists and product managers to create production-grade systems. Key responsibilities include evolving the AI pl ...

Senior Software Engineer — Timetabling Platform & AI

YRA Solutions Ltd. is seeking a Software Engineer II to enhance the CrunchTime platform, which serves modern university needs. You will design, build, and ship features within a small, agile team, directly impacting the product's evolution. The ideal candidate holds a Bachelor’s degree and has 3+ years ...

Backend Engineer, Payments Platform

Teya is looking for a Software Engineer to join our team in London. You will play an essential role in developing technology for small and medium-sized businesses across Europe. Collaborating with diverse teams, you will help design, develop, and maintain our core systems. The ideal candidate will have at lea ...

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