138,482+ Lead Java Application Developer Java Web Tech Jobs in London, UK — Local Employers Hiring June 2026

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Dotnet Developer

Talent Acquisition- HR APPS & SI-TAG (UK & Europe) at HCL Technologies HCLTech is a global technology company, home to more than 220,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfoli ...

Python Developer

Strong proficiency in Python (e.g., Django, Flask, FastAPI) Hands-on experience with PostgreSQL , including performance tuning and indexing Solid understanding of SDLC methodologies (Agile, Scrum, or Waterfall) Experience designing and consuming RES ...

Salesforce Developer

# Salesforce Developer at N Consulting Ltd**Role: Salesforce Developer****Location: London (Hybrid 3 days office)****Duration: Fulltime**Job description:• Should have worked on Salesforce implementation/support projects in the past.• Experience working on Sales/Service/Experience Cloud or on FORCE.COM• Develop t ...

NetSuite Developer

Title: NetSuite Developer Location: London Hybrid: 3-4 days a week onsite Salary: £75,000 + 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 Administra ...

Python Developer

A leading digital consultancy are looking for a Contract Python Developer with Angular experience to join the team to support their end clients development project. The role will require Two days a week onsite in their London site per week. The ideal candidate will have the below key skills: ...

Developer Advocate

What do we do? Paddle offers digital product companies a completely different approach to their payment infrastructure. Instead of assembling and maintaining a complex stack of payments‑related apps and services, we’re a Merchant of Record for our customers. That means we take away 100% of the pa ...

iOS Developer

Senior iOS Engineer – Join a scaling FinTech 2 days a week onsite – London based We’re partnered with a scaling FinTech who are consumer driven to use technology to provide their customers with smarter financial decisions. Their platform supports millions of users to help deliver im ...

Systems Developer

Job Description This role sits within Application Development and is responsible for supporting, enhancing and delivering Claritas, a business‑critical bordereaux management system used to receive, validate, process and integrate bordereaux data for operational and reporting purposes. The p ...

C# Developer

C# .NET Developer | Azure | Contract | London Hybrid | up to £530/day Inside IR35 Enterprise Digital Transformation Programme £530 per day | Inside IR35 Hybrid – 3 days onsite in London I’m currently working with a global technology consultancy supporting a major UK enterprise ...

Python Developer

Role Overview As part of its ambition to become a Top 3 contributor in the European ETF market, our client is investing significantly in the evolution of its ETF Market Making platform, with a strong focus on advancing Automated Market Making (AMM) and client RFQ pricing capabilities. Thi ...

BI Developer

British International Investment (BII) is the UK’s leading development finance institution, wholly owned by the UK Government. Our primary mission is to address global development challenges through strategic investments that promote sustainable and inclusive economic growth. BII focuses on ...

Frontend Developer

Role Description As a Frontend Developer at Eeze, you will be part of a fast-paced, innovative team building web-based gaming applications. You’ll work with technologies such as TypeScript, React, Redux, Zustand, WebSockets, and Vite, contributing to a modular and scalable front-end architecture. ...

Senior Developer

Overview I’m currently partnering with an exciting startup in the energy/proptech space that’s building products for heat pump installers and homeowners — and they’re looking for a strong Senior Full Stack Engineer to join the team. If you’re looking for a role with real ownership, strong technica ...

Android Developer

The Product Team creates high-quality end-to-end experiences for travelers, partners, and Expedia Group. Our focus on customer-centric innovation enables us to develop products that build loyalty and repeat business. We partner closely with teams across Expedia Group to drive growth and achieve results for ...

Ruby Developer

What's in it for you? Apart from working at an award-winning health tech company! You will get: Excellent salary + Bonus Work from home opportunities This is a brilliant time to join as the company are looking to increase the size of their development team over the ne ...

Python Developer

A leading global investment bank is seeking a Python Developer to join its Front Office FX Options Technology team. This is a high-impact role where you’ll work closely with traders and developers to build cutting-edge, high-performance trading systems - leveraging big data and algorithmic models to analys ...

Adobe Developer

What will your day look like? In the role as an Adobe Developer, you are responsible for understanding the technical structure of a project. Your job will be to identify client requirements by researching concept, strategy, and target for the project, followed by designing, developing, and implem ...

Frontend Developer

Front Engineer (Frontier AI) - £80,000 to £150,000. Some people are built and build differently. In the case of this Y Combinator -backed AI company, their founders (pedigree engineers understates it) are building together, in person, with all the hours in the day the ...

Senior Developer

If you need support in completing the application or if you require a different format of this document, please get in touch with or call TCS London Office number with the subject line: “Application Support Request”. Role: ServiceNow - Senior Developer (HRSD, S2P) Job ...

Backend Developer

Fogsphere is a London‑based innovator focused on transforming workplace and urban safety through advanced AI, Computer Vision, and Industrial IoT. Built on a principled “Edge‑to‑Fog‑to‑Cloud” architecture, our platform turns passive CCTV cameras and sensors into proactive hazard detectors, capable of ident ...

Python Developer

LocationLondon, England, United Kingdom# Python Developer at N Consulting LtdLocationLondon, England, United KingdomSalary£300 - £350 /dayJob TypeContractDate PostedMay 6th, 2026Apply Now**Role: – Sr Python Developer****Duration:6 Months Contract**We are looking for a Python Developer with strong experience in * ...

Frontend Developer

About Biglight Biglight is an experience design agency that combines customer insight, UX and design with constant innovation and experimentation to help leading brands create remarkable customer experiences. Overview We're expanding our capabilities into component library an ...

WebMethods.io Developer

London, England, United Kingdom Quinnox Corporation Salary 65K + Pension and 20 days Holidays including Bank Holidays Leading the development of the webMethods.io cloud hosted platform. Working from high-level requirements through detailed specifications, prototypes, software deployment, and ...

Frontend Developer

Direct message the job poster from Few&Far Job Title: Senior Frontend Engineer (Contract – Outside IR35) Location: London (1 day per week onsite in Soho) Duration: 4 months (with potential for extension) We've partnered with a s ...

C# Developer

Talan is looking for a talented and driven C# Developer to join a high-performing team in London. This is a hybrid role, with 3 days per week on-site, offering the opportunity to work on cutting-edge financial systems within a global markets environment. You will play a key role in building and enha ...

.NET Developer

NET Developer, C# 14, WPF - London In just over three years our client’s community has grown to over 150 million people. They enable their users to share photos and videos on a variety of social networking services such as Facebook and Twitter. Having recently opened an R&D centre in London they ...

Python Developer

A Python + React + SQL + Databricks developer role blends backend data engineering with frontend application development, requiring strong coding skills in Python, React.js, SQL, and Databricks for building scalable, data-driven applications. Key Responsibilities Build APIs and ...

Python Developer

Direct message the job poster from Search 5.0 Co-Founder @ Search 5.0 ️ Driving Success with Elite Cloud and Contract Talent PYTHON CONTRACTOR | LONDON | HYBRID Are you a Python developer with a strong background in AWS, looking to make an impact in fintech? Thi ...

C++ Developer

C++ Developer – Smart Order Routing Ready to build the fastest paths to market? If you're a performance-obsessed C++ engineer with deep experience in low latency trading systems and smart order routing, this is the challenge you've been looking for. This is an opportunity ...

Backend Developer

About Us At Octopus we're passionate about powering a sustainable future. As pioneers in the renewable energy space, we don’t just invest in utility scale projects; we invest in people, communities and a greener tomorrow. We're on a mission to transform the renewable energy generation spa ...

iOS developer

Company Overview Teamtailor is an employer branding and ATS SaaS platform used by over 3,000 companies and 110,000 users in 90 countries around the world. It is a young, international, fast‑paced tech startup with a passionate team. Role Overview As a French‑speaking Account Man ...

Python Developer

Design and implement backend Python software solutions within the structured Notes domain. Collaborate on React UI app, ensuring clean API contracts and integration with backend services. Work in close collaboration with Quants/Sales/Trading and other tech team. Contribute to ...

Senior Developer

The Senior Developer role is a pivotal role within the Studio. The role’s focus is to develop performant, PHP-based projects for some really exciting brands, to be delivered on-time and on-budget and interact with clients directly. Senior Developer Remote role Minimum of 3 ...

Frontend Developer

TransPerfect is an established company with a start-up culture seeking creative entrepreneurial people like you to join our team. We’re hiring a Frontend Engineer to join our global team to be responsible for the quality, development, and execution of our software products. If you’re ready to join ...

.NET Developer

Noir Greater London, England, United Kingdom .NET Developer, .NET 9, C# - Break Into Banking – London Are you stuck in a catch 22 situation i.e. want to get into the financial services arena but your lack of experience within the industry is preventing you from entering it? The ...

Cloud Developer

Job Title Cloud Developer Job Description The Cloud Full‑Stack Developer (with primary focus on AWS) is responsible for the end‑to‑end design, build, and delivery of secure, cloud‑hosted applications supporting PL Re strategic platforms, including the Underwriting & Modelling Environment (UMe). Th ...

Python Developer

Project Description Luxoft is looking for a Senior Python developer for development of new application to be used by investors and investment committees to review their portfolio data, tailored to specific user groups. Responsibilities Work closely with the business team, ...

Python Developer

As part of its ambition to become a Top 3 contributor in the European ETF market, our client is continuously improving its ETF Market Making platform to better serve its clients. To this end, there is a investment on its London AMM ETF platform to bring it to the next level of Automated client RFQ Pricing: ...

Software Developer

Software Engineer | Building Intelligent Systems That Make an Impact Central London 4 or 5 days a week on site Existing SC or DV Clearance is required National Security Sector An exciting opportunity has arisen for a Software Engineer to join a cutting‑edge team deve ...

Mainframe Developer

Eight years of experience with Mainframe technologies including COBOL, CICS, JCL, DB2, and VSAM, with proven expertise in batch processing and online transaction processing (OLTP) environmen Solid experience in application support, with a good understanding of Incident and Problem Managemen ...

Frontend Developer

Contract: Initial 6 Months (Highly Likely Extension) We're partnering with a globally recognised technology and streaming organisation seeking a Senior Frontend Engineer to join a high-performing engineering team on an initial 6-month contract, with strong potential for extension based on p ...

SQL Developer

We're looking for an experienced MS SQL Developer to design, build, and optimise robust database solutions in a fast-paced, data-driven environment. You'll play a key role in ensuring performance, reliability, and scalability across critical systems while collaborating with cross-functional teams. <h3 ...

Software Developer

Software Developer - £50,000 - Permanent - Hybrid (London, 3 days per week in the office) Please note: This role does not offer sponsorship and requires to have the full right to work in the UK. La Fosse have partnered with a customer loyalty business to recruit an experienced Software En ...

Frontend Developer

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance v ...

System Developer

Senior Systems Engineer About the Opportunity We are a growing technology business seeking a talented Senior Systems Engineer to join our engineering team. This role offers the opportunity to work on scalable systems, modern applications, and cloud-based infrastructure while contributing ...

Frontend Developer

New opportunity for a Frontend Developer (Node.js/React) in London. Working on a high-traffic global eCommerce platform, you'll help build scalable applications used by customers worldwide. Up to £60k + bonus Hybrid London (2-3 days in office) Node.js | React | TypeScript | Cloud < ...

Quantitative Developer

Purpose of the role To design, develop, and evolve trading, risk management and other platforms that facilitate trading and regulatory objectives within the investment banking domain. Accountabilities Design, development, and maintenance of high-performance trading platforms, ...

SQL Developer

SQL Server Database Developer - Dartford - Hybrid Our 10 year partner and key client are hiring a SQL Server Database Developer to join a growing IT Development team within a well-established, fast-scaling global logistics and e-commerce business named in the Sunday Times Top Track ...

Shopify Developer

About Oh Polly Founded in 2015, Oh Polly is a fast-growing, social first fashion brand that creates trend driven, high quality premium products. With a focus on innovation, global responsibility, and ethics. We’ve built a combined social following of over 10 million across our brands, including B ...

Salesforce Developer

Role: Senior Salesforce Developer / Consultant (Financial Services Cloud) Location: London, UK Type: Contract We are seeking a Senior Salesforce Developer with strong functional consulting skills to play a key role in the delivery of enterprise-scale CRM transformation initiatives ...

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