158,187+ Lead Java Application Developer Java Web Tech Jobs in London, UK — Local Employers Hiring June 2026

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Developer Experience Engineer for AI Hardware

Fractile is striving to redefine computing for AI, seeking Developer Experience Engineers who will design tools for running and optimising large language models. You will collaborate with various engineering teams and create documentation for developers engaging with our platform. The ideal candidate h ...

DevOps Engineer — Developer Experience & CI/CD

TMX Group is seeking a DevOps Engineer to improve delivery speed in the engineering org at Trayport. The role involves creating CI/CD pipelines, automating processes, and ensuring efficient developer experiences across a growing team. Ideal candidates will have experience in AWS, Kubernetes, and scripting while ...

Python Algos Developer Sports Betting Platform

Playtech, a leading technology company in the gambling industry based in Greater London, is seeking a proactive Software Developer - Algos for its GenBet unit. The role involves developing the Sportsbook product and applications, implementing new features, and solving complex problems. To succeed, cand ...

SENIOR SOFTWARE DEVELOPER EDINBURGH OR LONDON

Passionate about contributing to a more sustainable world? Bring your passion for sustainability and digital innovation to a meaningful Senior Software Developer role that is instrumental in shaping and advancing the digital infrastructure that supports our engineering and consultancy teams to design servi ...

Hybrid Dynamics 365 Developer | Power Platform

A well-established global company is seeking an experienced Microsoft Dynamics Developer/Administrator for a hybrid role based in Central London 2-3 days a week. In this position, you will configure Dynamics 365 modules, build and maintain Power Apps, and provide support and troubleshooting. The ideal candidate ...

Senior AI‑Driven Developer Experience Writer

Ably is searching for a Senior Developer Experience Writer to enhance developer documentation using AI tools, ensuring high-quality standards and easy navigation. You will empower engineers and help define what great technical content looks like. Join a collaborative team and contribute to building the ...

C++ Quant Developer – High Frequency Trading

A leading proprietary trading firm in London is seeking a Quant Developer to enhance its trading strategies. The role includes developing a low-latency high-frequency trading platform and supporting the quantitative research team. Ideal candidates will possess a degree in Computer Science or related fields, have ...

Senior Unica Developer — Hybrid Campaigns & Optimization

Vodafone Group Plc is seeking a dedicated professional in London or Newbury to ensure the quality and reliability of products through effective campaign management. This role involves reporting issues, collaborating with engineers, and advocating for users' experiences. The ideal candidate should be sk ...

Python Developer, Insurance Analytics (Hybrid London)

A leading insurance consultancy is seeking a Python Developer to join their Insurance Analytics team in London. The role involves developing features for the InsurSight platform, optimizing performance, and mentoring junior developers. Candidates should have strong experience in Python, familiarity with Azure to ...

SC Cleared Power Platform Developer (Hybrid)

Sanderson Government & Defence is seeking an SC Cleared Software Developer with strong Power Platform skills for a contract position in London. The role involves developing critical digital services to meet government standards, with on-site work in Westminster 2 days a week. A competitive rate of £650 ...

VP Quantitative Developer — Hybrid London, HPC

Citibank (Switzerland) AG is seeking an experienced Quantitative Developer in London to join the Numerical Performance Group. This team is critical in designing, developing, and deploying Citi's core high-performance C++ numerical library, enhancing pricing and risk management capabilities. The ideal c ...

Python Developer Hybrid Banking & Hedge Fund

Stars Arena is seeking a Python Developer to join their team in London. The ideal candidate will have 1-4 years of experience and a desire to transition into the banking sector or work for a high-performing hedge fund. This full-time role offers competitive compensation and opportunities for hybrid wor ...

Senior C# Developer FX & Orchestrade Expert

A global consulting group is seeking an experienced Senior C# Developer to join their team in Greater London. This role requires deep experience in FX products and the Orchestrade trading platform. The successful candidate will be responsible for designing and developing solutions for trading and risk functions ...

Senior Software Developer Market Making Technology

Role Summary As a Market Making Senior Software Developer, you will collaborate closely with business stakeholders and engineering teams to design, develop, and maintain products that enhance Marex’s market‑making capabilities and operational efficiency across multiple asset classes and geographi ...

Enterprise Technology Engineer (GRC) – ServiceNow Developer

LocationLondon, England, United Kingdom# Enterprise Technology Engineer (GRC) – ServiceNow Developer at N Consulting LtdLocationLondon, England, United KingdomSalary£600 - £650 /dayJob TypeContractDate PostedApril 1st, 2026Apply NowWork mode: Hybrid Number of days a week worked in the office: 2-3 days Contract ...

Remote Salesforce Commerce Cloud B2C Developer

A leading technology firm is seeking a Commerce Cloud Developer (B2C) for a remote position in Europe. The ideal candidate will have 4–7 years of Salesforce development experience, particularly in Salesforce Commerce Cloud B2C (SFRA). Responsibilities include developing solutions, API integration, and collaborat ...

Senior Software Developer Market Making Technology

About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across ...

Senior Quant Developer: Elite Quant Fund

Role : Senior Quant DeveloperClient : London’s most selective quantitative investment fundCompensation : Highly competitive with significant performance-based upsideLocation: London <s ...

Impact Driven Salesforce Developer (Remote/Hybrid)

Resource on Demand is seeking a Salesforce Developer to help drive meaningful work through impactful Salesforce solutions. The role offers flexibility, allowing for remote work or part-time office presence in London. Ideal candidates will have Salesforce certifications and a passion for technology that makes ...

BPM Developer (Metastorm) | Hybrid London Contract

Adecco is seeking a BPM Developer for a 6-month contract in London. This role involves designing applications and workflows using Opentext MBPM, collaborating with database administrators, and supporting software deployments. The ideal candidate has experience in BPM technology and proficiency in MS .N ...

Frontend Developer (React) — Impactful, Agile & UX

A leading technology consultancy in Greater London is seeking a passionate Front End Developer to join their agile team. The role involves developing user-focused software, mentoring juniors, and ensuring high-quality code. Ideal candidates will have strong REACT skills and experience working in multi-disciplina ...

Senior Software Developer Market Making Platform

Marex is seeking a Market Making Senior Software Developer in Greater London. This role focuses on designing and maintaining applications that enhance market-making capabilities. Candidates should have strong experience in technologies like JavaScript, TypeScript, AWS, and Docker, with a methodical approach to s ...

Senior Software Developer Market Making Technology

Senior Software Developer - Market Making Technology London, GB Full-Time Information Technology About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to client ...

Senior Azure Cloud Full Stack Developer

Introduction At IBM CIC, we provide technical and industry expertise to a wide range of public and private sector clients in the UK. A career in IBM CIC means you’ll have the opportunity to work with leading professionals across multiple industries to improve the hybrid cloud and AI journey for t ...

DevOps Platform Engineer Developer Experience Builder

First Horizon is looking for a DevOps Software Platform Engineer to enhance our DevOps tools and developer experience. You will work in a collaborative environment focusing on the DevOps platform, utilizing your engineering background. Key responsibilities include supporting the platform, building and ...

Senior SFMC Developer: Build Automation & Campaigns

Senior Developer - Salesforce Marketing Cloud London, England, United Kingdom What will your day look like? In the role as Salesforce Developer, you are responsible for understanding the technical structure of a project. Your job will be to identify client requirements by researchi ...

Software Engineer Infrastructure,SWE Developer Foundations

Summary The SWE Developer Foundations organisation builds technologies and tools to help software engineers at Apple to do the best work of their lives. Our team supports that mission by building innovative infrastructure and tools to provide engineers with capabilities to quickly and efficiently ...

Microsoft Dynamics 365 Developer, Power Pages

About Scrumconnect Consulting Scrumconnect Consulting is a UK national SME award-winning software development consultancy with over 300 consultants across the UK. We work with UK Public Sector clients to build impactful, award-winning digital services that improve millions of lives. Job ...

Developer Support Engineer: AI Tools & Observability

A leading AI observability platform is seeking a Developer Support Engineer to help developers overcome challenges in their projects. The position requires 3-8 years of experience supporting developer tools, strong coding skills in Python or TypeScript, and excellent communication. You will troubleshoot issues, ...

Front End Developer, Options Trading Dashboards

Millennium, a leading global hedge fund, is seeking a passionate Front-End Developer to create high-performance trading dashboards and tools. You will design intuitive applications using React and TypeScript, collaborate closely with traders, and develop data-rich visualisations. Ideal candidates should be profi ...

Senior SFMC Developer: Elevate Personalization & CRM

A leading marketing consultancy in Greater London is seeking a Senior Salesforce Marketing Cloud Developer. You will be responsible for identifying client requirements, developing automations, and coding technical specifications. The ideal candidate has 4+ years of relevant experience, strong knowledge of HTML/C ...

Unit4 ERP Technical Developer: Reports & Integrations

SystemsAccountants is seeking a Technical Developer responsible for managing, designing, and delivering technical solutions, including reports and integrations. The ideal candidate will work closely with clients, gather requirements, and ensure solutions meet business needs. Essential qualifications in ...

Engineering Manager Research & Trading Developer Experience

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world‑class researchers and engineers in an environment that values deep exploration and methodical execution – because the best ideas take time to evolve. Toget ...

Technical Manager – Residential Developer – North London

Technical Manager – Residential Developer – North London Salary: £70,000 Location: North London Regions: Hertfordshire, London My client a residential developer who specialise in new build developments in both traditional build and reinforced concre ...

VP, Algo / Smart Order Router Developer

VP, Algo / Smart Order Router Developer | London I'm working with a leading electronic trading business seeking an experienced Algo Developer to help build the next generation of execution and routing technology. This is a genuinely greenfield opportunity where you'll play a key role design ...

AI Powered People & Finance Systems Developer

Kaluza, located in London, seeks a People & Finance Systems Developer to transform operations through AI. The role is designed for individuals with a Computer Science degree and 1-2 years of experience, focusing on integrating AI tools with internal systems like Workday and Slack. You'll collaborate wi ...

Quantitative Developer C++ in London Millennium

Quantitative Developer - C++ Millennium is a top tier global hedge fund with a strong commitment to leveraging innovations in technology and data science to solve complex problems.As part of the vision the firm is looking to hire a quantitative developer to work on the next generation price and ri ...

JavaScript Node.js Developer for Blockchain Projects

A reputable technology firm is urgently seeking a Javascript Developer to join their team in London. The ideal candidate will have around 1 year of commercial experience, be proficient in Functional JavaScript, and have a working knowledge of Node.js, React/Redux, and Express. Attention to detail and an understa ...

Salesforce Marketing Cloud Platform Developer (Hybrid)

A leading global technology firm in London seeks an experienced Salesforce Marketing Cloud Developer to join a high-performing CRM team. You will design automated journeys, optimise data flows, and ensure high-quality platform performance across various clouds. The role demands 3+ years of Salesforce Marketing C ...

Frontend Developer (React/TypeScript) — Hybrid London

nology is seeking a Frontend Developer with over 1 year of experience to work alongside a leading financial services organisation in London. As a Frontend Developer, you will enhance your skills while developing business-critical applications using React and TypeScript. You will collaborate with divers ...

Senior Power BI Developer (Local Government)

Senior Power BI Developer (Local Government) £591 per day. Inside IR35. 4 days remote, 1 day onsite in Central London. 36 hours per week. Overview Salt Recruitment is working with a local government body to recruit an experienced Senior Power BI Developer to support council-wide bu ...

Senior Python Developer Trading & Risk Platforms

Ad Astra Consultants is seeking a skilled Python Developer with 6–10 years of experience to work on trading and risk management systems in investment banking. The position involves developing backend applications and data processing logic that support risk calculations and trade workflows. Key responsi ...

Senior Platform Architect: Internal Developer Platform

Factset is seeking a Platform Architect to unify its developer infrastructure, delivering a Platform as a Service. Responsibilities include leading architecture decisions, evaluating technologies, and collaborating with various teams to improve platform capabilities. The ideal candidate should have ext ...

Quant Developer: AI Driven Trading Systems

Hunter Bond is seeking a Quant Developer to join an ambitious investment firm focused on building high-performance trading systems across multiple asset classes. The role involves designing, building, and optimizing trading systems that directly impact profitability from day one. Candidates should poss ...

Software Developer Graduate: September 2026 London

Overview Susquehanna is seeking talented graduates to join their growing London office in September 2026. As a Software Development Graduate at Susquehanna, you will be working with senior technologists from the beginning of your programme who will act as your mentors throughout. Your role ...

Quantity Surveyor – Residential Developer – West London

Quantity Surveyor – Residential Developer – West London Home » Residential » Quantity Surveyor – Residential Developer – West LondonSalary: £60,000 plus packageLocation: West LondonRegion: LondonMy client who is a leading residential developer working across Lon ...

Webflow Developer / Front End Engineer London

About the Role This role sits within our Marketing Website team, responsible for how Synthesia shows up to millions of users globally. As a Webflow Developer / Front-End Engineer, you’ll work across Webflow, front-end code, and supporting tooling. You’ll collaborate closely with Des ...

Software Developer UK Visa Sponsorship Available

Software Developer – UK Visa Sponsorship Available We are looking to add a highly qualified and driven software developer to our vibrant team. The chosen applicant will be in charge of creating, developing, and managing cutting‑edge software solutions for a variety of platforms. This position pro ...

Microsoft D365 and Power Platform Developer

Elevate your career as a Microsoft D365 and Power Platform Developer in a stimulating hybrid environment that fosters innovation and collaboration. We are seeking a skilled professional with a strong background in MS Dynamics - CRM to excel in a permanent role. This position offers the opportunity t ...

Hybrid React Native Developer London (Contract)

Synergetic, a large multinational business, is seeking a React Native Developer for a hybrid role in London. This position involves building and shipping features for a customer-facing mobile product across iOS and Android. The ideal candidate has strong React Native experience, a good grasp of TypeScr ...

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