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

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Venue & Studio Deployments System Engineer, Event Productions

DescriptionThis role is responsible for designing, deploying and delivering live event and broadcast studio production sites globally.As a successful candidate, you will deploy production systems that enable high quality, efficient operation and meet high customer demand. You will have a strong backgroun ...

Python Software Engineer

Requirements Solid Python knowledge A commitment to writing testable, maintainable code Knowledge of SQL and an ability to compose complex queries Basic Linux knowledge Solid knowledge of algorithms and data structures Degree in Computer Sci ...

ServiceNow Lead Developer & Platform Architect

Worldpay is seeking a ServiceNow Development Lead to join our evolving ServiceNow Platform team. This role involves leading and mentoring a team of ServiceNow Engineers, ensuring high standards in technical leadership and accountability. Your responsibilities will include driving agile delivery process ...

Lead Developer – VP – XVA Technology

For additional information, please review .**Lead Developer – VP – XVA Technology**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 ...

Lead Product Developer – Food & Beverage

ASR Group in Greater London seeks a Product Development Manager to lead technical aspects of product development and manage scale-up trials. You will bridge customer engagement with technical teams, ensuring alignment across projects while maintaining compliance and quality. The ideal candidate has a s ...

Lead Developer – VP – XVA Technology

Lead Developer – VP – XVA Technology 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 depl ...

ServiceNow Development Lead / Senior Developer

London-based ServiceNow Development Lead / Senior Developer required to join an established delivery team. This is a hands-on role combining high-output development with responsibility for supporting and guiding an existing offshore development team. The role suits someone who wants to be p ...

Senior Lead C# Software Developer

Senior Lead C# Software Developer We urgently require a Senior C# Lead Developer with at least 5 to 10 years solid expertise in developing financial systems ideally banking systems. Your experience should include extensive knowledge of developing complex financial systems in C# as Teal Le ...

Lead Back End Software Developer

Lead Backend Software Developer (Contract) London, Outside IR35£500-£600 per day This is an exciting opportunity to join a fast‑moving engineering function at a pivotal moment of technical uplift. They are investing heavily in strengthening their core platforms and commercial data sy ...

Lead Developer Advocate, Creator Platform

London, England, United Kingdom Become part of a team working on some of the most rewarding, large-scale creative projects to be found in any entertainment medium - all within an inclusive, highly-motivated environment where you can learn and collaborate with some of the most talented people in the ...

AI Architect & Senior Developer Lead

USS is looking for a Senior Analyst Developer - AI Lead to provide technical guidance and architectural oversight for AI solutions while collaborating with various teams within the organization. This role involves defining standards, validating designs, and supporting the safe adoption of AI technologi ...

Global Developer Marketing & Ecosystem Lead

Cloud & Smart Industries Group (CSIG) is the core driving force behind Tencent's AI commercialization. We lead the company’s AI strategy, turning cutting-edge AI technologies into real-world solutions that redefine industries. By integrating AI with cloud and cybersecurity, we build intelligent systems that t ...

Lead Guidewire PolicyCenter Developer (Hybrid)

Next Ventures is seeking a Lead Guidewire PolicyCenter Developer for a 12-month contract based in Greater London. This hybrid role requires working in Central London twice a week, focusing on Guidewire PolicyCenter development and cloud migrations. The ideal candidate will have at least 10 years of exp ...

NetSuite Developer and Integration Lead

Our client a large scale software company is seeking a permanent NetSuite Technical Administrator to join there company on a permanent basis. The NetSuite Technical Administrator is responsible for the technical health, configuration, and continuous improvement of the clients NetSuite ERP and its co ...

Lead Guidewire Claimcenter Developer (Cloud)

Lead Guidewire Claimcenter Developer Next Ventures is partnered with a London-based insurer to hire a Lead Claimcenter Developer on a 12‑month contract. The role is hybrid, requiring presence in the Central London office two days per week. Key Requirements 10+ years of exp ...

Senior Analyst Developer AI Lead

About the role In your role as Senior Analyst Developer - AI Lead you will make a meaningful and valued contribution from the outset. This role will provide a great opportunity to provide technical guidance and architectural oversight for AI Technical solutions within USS, primarily focusing on th ...

Senior Analyst Developer AI Lead

# Senior Analyst Developer - AI Lead| | || --- | --- || | | | --- | | | |**Senior Analyst Developer - AI Lead****Business Area: Operations****Place of Work: London****Contract Type: Fixed Term Contract****About the role**In your role as Senior Analyst Developer - AI Lead, you will make a meaningful and value ...

Lead Developer – VP – XVA Technology

**Quant Developer – Trading Analytics – Equity Derivatives Tech** 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 ...

Lead Developer – VP – XVA Technology

Quant Developer – Trading Analytics – Equity Derivatives Tech 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 ...

Lead Developer – VP – XVA Technology

Quant Developer – Trading Analytics – Equity Derivatives Tech 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 ...

Rates eTrading Strategist: Low Latency Quant Trader

LGBT Great is looking for an innovative eTrading Strategist to join their team in Greater London. The ideal candidate will design and develop algorithmic trading strategies, contributing to the overall electronic trading infrastructure. The role demands strong programming abilities in languages such as ...

VP Software Engineer — Finance Platforms & Data Systems

Goldman Sachs is seeking an experienced engineer in Controllers Engineering to design and implement financial measurement solutions. You will manage end-to-end development in an Agile setting, collaborating with Finance to ensure effective solutions and reporting. A strong background with Java, Python, ...

ML Software Engineer (Python/React) – Contract, London

Java Script Works is seeking a Machine Learning Software Engineer for a contract role based in London, United Kingdom. The candidate should have a Bachelor's degree in Computer Science or a related field and possess backend experience in Python, as well as frontend skills in JavaScript and React. This position i ...

Senior Algo Trading Engineer Low Latency & SOR (AVP)

Citibank (Switzerland) AG is seeking a Senior Software Engineer for Algo Trading in London. The role involves designing and delivering algorithmic trading and Smart Order Routing (SOR) platforms, requiring strong technical expertise in Low Latency Java, C++, or Rust. Collaboration with traders and quantitative r ...

Senior Backend Engineer, Messaging & Notifications (AI‑First)

Miro is looking for a Senior Backend Engineer to join the Messaging team in Greater London. The ideal candidate will design and implement scalable backend services for notifications and must have over 6 years of backend experience, particularly with Java 17 and distributed systems. Miro offers a global benefits ...

AI Driven Integration Engineer (Remote)

Fiskl.AI is seeking a skilled engineer to build financial integrations and automate accounting systems. In this role, you will develop payment and banking integrations while employing AI tools to enhance productivity. Ideal candidates will have over 3 years of experience in backend development, specifically usin ...

Principal AI Native Deployment Architect

JetBrains is seeking a Principal Forward Deployed Engineer based in Greater London. In this role, you will work with customers to deploy the JetBrains Central platform into enterprise environments, transitioning them to AI-native workflows. Ideal candidates will have a background in software projects, familiarit ...

Senior Full Stack Engineer — TypeScript, AWS & Svelte

Java Script Works is seeking a Senior Full Stack Engineer to join their team in London. The role requires knowledge of Typescript, Svelte, and AWS Serverless, with confidence in learning new technologies being essential. The company offers a competitive salary and bonus as part of its commitment to valuing exper ...

Senior Python Engineer – FinTech, Django & PostgreSQL

Java Script Works is seeking an experienced Python Engineer to join a scaling FinTech company based in Greater London. In this role, you will develop cutting-edge technology that empowers businesses and supports their growth. Preferred qualifications include experience with Django, PostgreSQL, and Front-End deve ...

Senior Backend Infra Engineer — Scale Data Systems

A leading data-driven software company in Greater London seeks a Software Engineer to build scalable solutions. The role involves designing infrastructure for complex data systems, contributing to open-source projects, and automating deployments. Ideal candidates have 6+ years of experience, strong coding skills ...

Senior Fullstack Engineer – Compliance Automation

Java Script Works is seeking a Senior Software Engineer, Fullstack based in London, United Kingdom. This full-time position involves collaboration with talented engineers to design and develop product functionality using modern frameworks such as TypeScript, React, and Node.js. The ideal candidate will ...

Principal Platform Engineer: AI, Reliability & Leadership (Hybrid/Remote)

LexisNexis Risk Solutions is looking for a Principal Engineer to guide technical direction across teams, focusing on system modernization and AI applications. This full-time role involves collaborating with various teams to enhance reliability and scalability of platforms. Candidates should have extensive backen ...

Senior Backend Engineer – Time & Money (Hybrid, Equity)

Personio seeks a Senior Software Engineer in London to build backend systems for time tracking and payroll functionalities. The role includes designing services to ensure accurate data integration into Payroll and Money systems. Ideal candidates have backend engineering experience, strong programming skills in J ...

Senior Software Engineer (Associate) Full Stack React/AWS

Java Script Works is seeking a Senior Software Engineer (Associate) to work in London, United Kingdom. This full-time position offers competitive compensation and opportunities to work with modern technologies such as C#, .NET core, and React.js. Ideal candidates will possess strong technical abilities ...

Senior Software Engineer Cloud Native & DevOps Builder

Pacific Asset Management, LLC is looking for a knowledgeable Senior Software Engineer to enhance their products and platforms. The role demands collaboration across teams, ensuring systems are robust, maintainable and impactful. The ideal candidate should possess proficiency in modern programming langu ...

Technical Solutions Architect (IT) in London Nexus Jobs Limited

Skills and Experience Designing physical data models with expertise in relational SQL. Experience in rolling out mid to large platforms from inception to production. Exposure to SQL, Java, Oracle, and Kubernetes. Knowledge of hardware and software virtualization tec ...

Solutions Architect – Data Models & Platform Deployments

Skills and Experience Designing physical data models with expertise in relational SQL. Experience in rolling out mid to large platforms from inception to production. Exposure to SQL, Java, Oracle, and Kubernetes. Knowledge of hardware and software virtualization tec ...

Senior Cloud Control Plane Engineer Build Real Time Data

Confluent is looking for a Software Engineer, Cloud Control Plane to design and implement a distributed control plane. The role involves working in a collaborative Agile environment with a focus on Kubernetes. Candidates should have strong skills in software design, distributed systems, and programming languages ...

Senior Software Engineer: Fraud Prevention SaaS at Scale

A leading payments technology company is seeking a Senior Software Engineer to design and scale their SaaS platform. This role involves collaborating with teams to develop innovative solutions to combat financial crime. Candidates should have experience in SaaS, proficiency in Java or Python, and a strong unders ...

Remote AI Solutions Architect | Cloud & ML

Satalia (NPComplete) is seeking a Technical Solutions Architect to create enterprise-quality AI and ML solutions. This role involves technology selection, and leading a development team in implementing robust cloud-based solutions. Candidates should be proficient in Java, Typescript, and/or Python, with experien ...

Security Cleared Data Architect – Azure, Big Data, Hybrid

A leading global consulting firm is seeking a Data Architect to manage and define architecture for high-profile projects. Candidates must have a strong background in data strategy, migration, and integration, with expertise in Java, Scala, Python, and Big Data technologies. Key responsibilities include defining ...

Senior Software Engineer Public APIs & Expense Platform

A global technology firm in Greater London is seeking a Senior Software Engineer to enhance their Business Expense Management team. You'll design and maintain scalable services while producing public-facing APIs. Ideal candidates will be proficient in Java, familiar with microservices, and possess strong communi ...

Site Reliability Engineer, Region Services & CI/CD

Amazon is seeking a Site Reliability Engineer for its UK team to pioneer automated Windows service deployments. The role emphasizes building Ansible-based Infrastructure as Code, enhancing operational excellence, and solving complex technical challenges. Candidates should have deep knowledge in systems engineeri ...

Lead Audio Software Product Manager

Java Script Works is seeking an Engineering Product Manager based in Greater London, United Kingdom. The ideal candidate will have a strong background in audio software development and experience with C++, JUCE, JavaScript, and Python. This role demands successful technical leadership and product management expe ...

Fintech Solutions Consultant

Quant Capital is seeking a Professional Services Consultant in London to join their fintech team. The ideal candidate will have a technical degree and experience with SQL, along with the ability to read object-oriented code in languages such as C++, C#, Java, and XML. Strong analytical and problem-solving skills ...

Senior Front End Engineer — React + Next.js Expert

Java Script Works is seeking a Senior Product Engineer (Front-End) to join their team in London, United Kingdom. This role involves building and shipping responsive, performant UIs using modern technologies like React and TypeScript, while collaborating with backend engineers for API definitions. The c ...

Senior Fullstack Engineer — Global Commerce Platform (Remote)

A leading audio streaming service is looking for a Senior Fullstack Engineer to enhance its payment infrastructure. The role involves architecting and implementing backend services using Java and Python to ensure payment processing across their platform. The ideal candidate is experienced in modern JavaScript, c ...

IAM Full Stack Engineer: Secure Platform & Access Leader

A leading financial technology firm is seeking a Software Engineer to join their IAM team. In this role, you will design and implement secure, scalable solutions for user access management, employing cutting-edge technology in a supportive environment. Ideal candidates will have experience in full stack engineer ...

Full Stack AI Engineer: Build Production AI Apps

Harnham, located in Greater London, is seeking a talented software engineer to design and maintain AI-enabled applications. The role demands strong programming skills in languages like Java and Python, as well as hands-on DevOps expertise with CI/CD. Ideal candidates will have experience building produ ...

VP of Site Reliability Engineering Scale & Automation

hackajob is looking for a Vice President – Site Reliability Engineer in London to enhance automated engineering solutions for Production Services. The role demands expertise in full-stack development, with proficiency in Python, Java, React, and Angular. You will collaborate with diverse teams, focusin ...

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