159,734+ Lead Java Application Developer Java Web Tech Jobs in London, UK — Local Employers Hiring June 2026

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Public Sector Salesforce Developer (SC Cleared)

NTT America, Inc. is seeking a Salesforce Developer based in Greater London to join their Salesforce Delivery team. This role focuses on utilizing Salesforce tools and capabilities to enhance public sector solutions. Candidates should have at least 3 years of Salesforce development experience, ideally with certi ...

Quantitative Developer, Python Trading Teams EMEA

Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high-performance platform and independent trading teams. We have a 25+ year track record of innovation and a reputation for discovering unique market opportunities. Tower is home to some ...

Senior Python Developer in London GroupM

Qualifications Proven experience and a passion for developing and operating data-oriented solutions Experience in AdTech technology highly desired Tools and Technologies The ideal candidate should have experience with the following tools and technologies: ...

XR Software Developer: Immersive Architecture Visualization

Foster + Partners is seeking a Software Developer – XR to create immersive applications that enhance architectural design and collaboration. Candidates should possess strong experience in interactive XR development, advanced knowledge of Unreal and/or Unity, and solid programming skills in C++ and/or C#. The rol ...

Python Developer Fixed Income Trading Platform

Vertus Partners is seeking a Python Developer to join the Fixed Income trading technology team within a leading international Investment Bank. This role focuses on building production trading systems and requires a core Python engineer who enjoys owning components and improving systems. The successful ...

Strategic New Business Developer – Print & Branding

Penny Warren Recruitment is seeking an experienced New Business Development Manager for a fast-paced print and branding company in Greater London. The successful candidate will drive new business and support strategic sales campaigns across key sectors. Ideal candidates should have a proven track recor ...

Outbound B2B Business Developer & Deal Closer

ChatPandas, Inc. is seeking a Business Development professional in Greater London to focus on lead generation and outreach. The successful candidate will analyze target markets, manage the entire sales cycle, and prepare tailored proposals. Ideal applicants will have 2–3 years of experience in sales an ...

Senior / Associate Architect Bespoke Residential Developer

Vertical Recruitment are delighted to be working with an innovative and forward thinking residential developer known for their high-quality developments in and around London. Job Summary This is a unique opportunity to join a newly formed architectural team, working on residential project ...

AI Tooling Engineer for Developer Platforms

A leading tech-driven financial firm in Greater London is seeking a software engineer to architect LLM-powered tools and collaborate with engineering teams. The ideal candidate has over 2 years of experience in software engineering, fluency in Python, and strong analytical skills. This position offers a dynamic ...

Quantitative Developer Algorithmic Trading & Data Systems

DRW is seeking a Quantitative Developer in London to design and implement software solutions that enhance algorithmic trading strategies. You will work closely with researchers and handle large-scale data processing, optimizing trading systems. The ideal candidate has a degree in a technical discipline ...

Quantitative Developer: AI Driven Trading Platform

Janus Henderson AAA CLO ETF is looking for a skilled financial quantitative developer to build enterprise-quality models and enhance the team's research capabilities. You will collaborate closely with asset allocation PMs and researchers to ensure quality and performance in a hybrid work environment. T ...

Assistant Vice President, Business Intelligence Developer

Do you want your voice heard and your actions to count? Discover your opportunity with Mitsubishi UFJ Financial Group (MUFG), one of the world’s leading financial groups. Across the globe, we’re 150,000 colleagues, striving to make a difference for every client, organization, and community ...

Senior Python Developer Trading & FIX (Hybrid)

A leading technology services company is looking for a skilled Python Developer based in Greater London. The ideal candidate will have over 6 years of experience in the trading domain and expertise in the FIX protocol. Responsibilities include developing trading applications, implementing FIX protocol solutions, ...

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 & efficiently bu ...

Dynamics 365 & Power Platform Developer (Hybrid)

Adecco is seeking a Software Developer specializing in Dynamics 365 and Power Platform to join their team in London. This role focuses on developing end-to-end solutions, customizing applications, and working with cross-functional teams to deliver secure business applications. The ideal candidate will ...

Informatica IDMC Developer PERM London, UK

Randstad Digital is hiring a Informatica IDMC Developer - PERM - London, UK based in London, South East, UK . This is a Full time opportunity (£60,000). Role: Informatica IDMC Developer Type: PERM Location: London, UK Working Model: Hyb ...

Comarch Developer Network Inventory & Service Management

We are seeking an experienced Comarch Developer / L2-L3 Support Engineer to support a large-scale Network Inventory and Service Management ecosystem within the telecommunications domain. The successful candidate will be responsible for platform support, incident management, network inventory troubleshootin ...

UI Developer: React + TypeScript & Design Systems

Matchtech is seeking a skilled UI Developer for a 6-month contract in Central London. This hybrid role involves building high-quality UI components and maintaining design systems. Required skills include React, TypeScript, and familiarity with modern front-end tooling. The ideal candidate is detail-oriented and ...

Senior PMM: Developer Platform & API Ecosystem

A leading technology company in London is looking for an experienced Senior Product Marketing Manager. The role emphasizes driving adoption of the developer ecosystem. Candidates should have over 5 years of product marketing experience, strong communication skills, and a solid understanding of API and technical ...

Applied Machine Learning Engineer Developer Publications

Summary Apple is where individual imaginations gather together, committing to the values that lead to great work. Every new product we build is the result of us making each other's ideas stronger. That happens because every one of us shares a belief that we can make something wonderful and share i ...

Contract Power Platform Developer London, Onsite

Energy Jobline CVL is looking for an experienced Power Platform Developer for a contract opportunity in Greater London. The successful candidate will support a large-scale programme in the education sector, focusing on the design and delivery of scalable solutions within Microsoft’s ecosystem. This rol ...

Salesforce Mulesoft Integrations Developer — Hybrid/Remote

A leading Salesforce partner based in the UK seeks a skilled Salesforce Mulesoft Developer for a hybrid role. The successful candidate will design and maintain integrations between Salesforce and other systems while collaborating with cross-functional teams to ensure optimal performance. Key qualifications inclu ...

AI Developer Tooling Engineer at Fanvue.com

Job Title: AI Developer Tooling Engineer Company Description: Fanvue.com - Series A AI-powered creator platform with $100M+ ARR Job Description: Join Fanvue to lead the integration of AI across our engineering organization. You will own the AI-assisted development st ...

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. ...

Senior ServiceNow Developer – HRSD & S2P Expert

Tata Consultancy Services is seeking a Senior Developer for their ServiceNow practice. This role involves designing and maintaining solutions across ITSM, HRSD, and S2P, while collaborating with IT architects and stakeholders. You will utilize your expertise in ServiceNow to drive innovation and best practices i ...

Junior Quant Developer: Productionise Research & Backtesting

DeepFin Research in Greater London is seeking a Junior Quant Developer to productionise research into high-performance trading systems. This role involves working with Quant Researchers to convert research code from Python to C++, developing backtesting and simulation infrastructures, and optimizing performan ...

Software Developer Internal Compute Frameworks (Rust)

Position Overview:We are seeking an experienced and passionate Software Developer to join our growing team. In this role, you will play a key part in designing, building, and maintaining Squarepoint internal frameworks, services and platforms that power our business. You will have the opportunit ...

Full Stack Developer – AI & Cloud Innovation

Position Description: At CGI, you will turn emerging ideas into impactful, real-world solutions that shape how organisations innovate and operate. As a Full Stack Developer within our IP & Innovation team, you will design and deliver end-to-end products that move from concept to client de ...

D365 CRM Developer Power Platform (FTSE250!)

D365 CRM Developer- Power Platform (FTSE250!) Are you looking to work for a company which is very innovative? Are you a D365 Developer who is looking to work with Power Platform, Power Apps, Power BI and Power Automate? Do you want to work in a cutting-edge company where inno ...

ServiceNow Developer Active Security Clearance Required

ServiceNow DeveloperLocation: London, Manchester and Ipswich Employment Type: Contract Security Clearance: Active SC Clearance RequiredAbout the RoleWe are looking for a talented and motivated Servic ...

Senior Full Stack Developer Downdetector Connect

Description Position at Ookla The Opportunity:As a Senior Developer, you’ll have significant autonomy to shape how some of the world’s largest telecom operators communicate with consumers and detect issues across their networks. You’ll help evolve the platform into a proactive, intelligent s ...

Quant Developer – Risk & Treasury | London / NYC

Location: New York or LondonComp: 150-500k SummaryA multi-strategy hedge fund focused on delivering consistent returns through innovative trading strategies, robust risk management, and cutting-edge technology. They’re now seeking an exceptional quant developer to ...

Power Apps Developer (Power BI specialism)

Salary: £60k to £70kMethods is recruiting for a Power Apps Developer (Power BI specialism) to join our team within the Public Sector Business unit on a permanent basis.This role will be mainly remote but require flexibility to travel to client sites, and our offices based in London, Sheff ...

Retail & Fashion / Product Development Product Developer

Product DeveloperLocation: Central LondonType: Full-time | PermanentAbout UsOur client are a well-established, design-led company specialising in beauty, home fragrance, and home-care products. They work with leading retailers and brands to create ...

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 a ...

Quant Developer (Python/R) – Equity Models

Salary: up to ~£250k annual TCExperience: Minimum 5 years; also open to more senior candidates. Fabulous opportunity for a talented QD to join one of the world’s most prestigious and successful hedge funds. Looking for an experienced engineer with a solid programming background ...

Low Latency C/C++ Developer – London

Salary: Competitive / Market-LeadingCompany:The role sits within the London office of a brand new HFT built out of an established systematic fund. So, there are huge buy-ins from the business – allowing you to delve greenfield project but with the advantage of market makers ...

Power Apps Developer (Power BI specialism)

Salary:  £60k to £70kMethods is recruiting for a Power Apps Developer (Power BI specialism) to join our team within the Public Sector Business unit on a permanent basis.This role will be mainly remote but require flexibility to travel to client sites, and our of ...

ServiceNow Developer Remote (UK) SC Cleared

Required SkillsServiceNowITSMITOMAPISNOWJob SummaryServiceNow Developer (SC Cleared) - Remote - Contract x 4Remote (UK Based), 3-Month Initial Contract, £600-700pd, Active SC Clearance (Essential)</stron ...

Freelance Bot Developer (WhatsApp / Telegram / Discord)

Mindrift is looking for skilled Bot Developers (WhatsApp Business API, Telegram Bot API, Discord API) to join the Tendem project () and build conversational bots and messaging-plat ...

Automation Developer: Build Smart, Scalable Automations

Lorien is seeking an Automation Developer in Greater London to design and deliver intelligent workflows and automation solutions across enterprise systems. You'll be responsible for improving processes, reducing manual effort, and delivering measurable operational impact. This hands-on role will have y ...

Senior Software Developer – Sustainable Buildings (Hybrid)

Max Fordham LLP is seeking a Senior Software Developer to enhance their engineering digital capabilities. This position involves software development to aid in digital transformation, ensuring performance modeling across sustainable projects. The successful candidate will utilize technologies like Pyth ...

Systems Developer Python, Django, Vue + Azure

Antares Global Management Limited is looking for a Systems Developer in London. This role focuses on supporting and enhancing the Claritas management system, which is crucial for processing and integrating data. You will work closely with business teams to deliver secure and reliable solutions. The ide ...

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 evolv ...

Full Stack AI & Automation Solutions Developer

Overview Full Stack AI & Automation Solutions Developer | London | Hybrid We are currently partnering with a highly progressive professional services organisation that is making significant investment into AI, automation, cloud technology and modern software engineering across the busines ...

Senior Informatica IDMC Developer (Hybrid, London)

Randstad Digital is seeking an experienced Informatica IDMC Developer for a permanent role based in London, UK. This full-time position offers a competitive salary of £50,000 to £60,000 per annum. The ideal candidate will have 6-8 years of ETL/Data Integration experience and expertise in designing robu ...

Full Stack Desk Developer (Python/React)

Full Stack Desk Developer (Python/React) Employment: Full‑time We are hiring for a Full Stack Developer, working closely with a wide range of business lines. You will be given the opportunity to work with technical and non‑technical experts and develop innovative solutions, and full‑stack ...

Senior Salesforce Developer & Architect (Lightning/LWC)

Trustpilot is looking for a Salesforce Developer to join our GTM Technology team. In this role, you will design and implement Salesforce solutions, ensure optimal performance, and provide user support. The ideal candidate has over 5 years of experience in Salesforce Development and Administration. You ...

Software Developer – PHP, JavaScript, AWS ID42845

Overview Our client is seeking a skilled Software Developer to work with modern, scalable technologies and contribute to high-availability, high-throughput systems. Responsibilities Build and optimise systems using PHP 8+ with frameworks such as Laravel or S ...

Technical PM & Software Developer, Onsite London

A dynamic financial services SME in Central London is seeking a Technical Project Manager with over 5 years of experience in managing complex technical projects. The ideal candidate will have a strong background in software development and project management. Responsibilities include overseeing multiple projects ...

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