761,438+ Lead Software Engineer Full Stack Java React Jobs in UK — Top Companies Hiring July 2026

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Lead Site Reliability Engineer: Scale, Automate & Mentor

MasterCard is looking for a Lead Site Reliability Engineer who will play a vital role in enhancing the reliability and scalability of applications that support global operations. The ideal candidate will have strong technical expertise, particularly in automation and mentorship. The responsibilities in ...

Mobile Security Engineer

Every day, Barclays’ mobile apps support hundreds of thousands of customers with important financial transactions, and it is critical that these transactions are secure. Our Android and iOS mobile apps use multiple layers of cryptography and encryption to protect customers and their data. To suppor ...

Platform Engineer

Hamiltonian Dynamics is a growing technology company working across Defence and Cyber Security, delivering software solutions for high-assurance environments. With teams based in Gloucestershire, Manchester, and London, we are expanding our platform capability and are looking for Platform Engineers ...

Data Architect

Job Advertisement: Data Architect Location: Nettleham, Lincoln Contract Type: Temporary Hourly Rate: £30.29 Are you ready to take your data expertise to the next level? Our client Lincolnshire Police are a key player in public services, is looking for a passionate and skille ...

Product Engineer (Staff)

Location: London / HybridSalary: £115,000 - £135,000 + £50,000 Share Options + BenefitsAbout AccurxAccurx is where conversations happen with and about patients. For decades, the NHS has struggled with fragmented systems that make simple tasks feel impossible. We’re changing t ...

Sysplex Tester Hybrid

 Sysplex)tool) developers & testers(A Sysplex Developers & Testers are a mainframespecialist who designs,develops,and supports applications or system components that run in an IBM sysplex environment.This role is highly specialized and is most common in banks ...

Interop Engineer – Test completion and analysis engineer

Your responsibilities:• Identify and trace Charge Point Operators (CPOs).• Manage and update test vehicles with required hardware (HW) and software (SW) configurations for lab / road drive testing.• Develop detailed route maps to create comprehensive drive plans for interoperability testi ...

Intelligent Automation Engineer

Role Title: Intelligent Automation Engineer Location: Liverpool, Glasgow or London Permanent Hybrid About the Role In this role you will design, build and run AI‑powered automations that improve speed, quality and colleague experience. You will engi ...

Senior Frontend Engineer – Identity & MFA (Angular)

Vanguard is seeking a Senior Full-Stack Developer to lead the MFA web application using Angular 21 and NestJS. This role involves building and evolving both frontend and backend services in a highly regulated environment. You will work closely with product and security teams to deliver secure solutions ...

SC Cleared Senior Digital Engineer Python/Django TechLead

Experis - ManpowerGroup is looking for a Senior Digital Developer to join their high-profile public sector subsidiary. In this role, you will lead a multi-disciplinary team to deliver secure, scalable digital services. Your responsibilities include designing full-stack features, ensuring maintainabl ...

Freelance AI First Product Engineer for Growth

Wonderbly is seeking a freelance product engineer for a hybrid role in central London, focusing on driving growth for our Kids and Keepsake landing pages. This hands-on position requires collaboration with our VP product and creative teams, tackling key customer experience challenges. The ideal candida ...

SC Cleared Automation Engineer in Corsham IO Associates

SC Cleared Automation Engineer Corsham, United Kingdom Posted 9 months ago Salary: £130,000 - £143,000 per year Tech stack Automation Python CI/CD Ansible Requirements Active SC Clearance. ...

Requirements Engineer (m/f/d) Web portals

The team develops and manages the online solutions (web portals, marketing sites) of the Banks Capital Management, the leading fund company in Austria and fund competence center of the clients International Group and is in need for a requirements engineer, who reviews what the existing product looks like and ...

T Level Digital Support and Security T Level Examiner

**What are T Levels?**T Levels are new courses coming in September 2020, which will follow GCSEs and will be equivalent to three A levels. These two-year courses have been developed in collaboration with employers and businesses, so that the content meets the needs of industry and prepares students for work. ...

T Level Digital Data Analytics T Level Examiner

**What are T Levels?**T Levels are new courses coming in September 2020, which will follow GCSEs and will be equivalent to three A levels. These two-year courses have been developed in collaboration with employers and businesses, so that the content meets the needs of industry and prepares students for work. ...

Platform Engineer III Core Platform

Overview As a Level 3 Platform Engineer, you will work on cloud infrastructure, release pipelines, and deployment systems that enable faster delivery. You'll own specific platform components, maintain reliable systems, and contribute to the engineering practices of the team through code quality an ...

AI Engineer.

AI EngineerWe are working on different areas where AI/ML can help portfolio managers, researchers, risk managers, and other functions. Some examples are: enabling traders/researchers to consume vast amounts of research and literature by organizing, summarizing information, sometimes in near real-time; doing q ...

PLC Programmer (Structured Text)

PLC Programmer (Structured Text) £60,000 - £70,000 + Overtime + Bonus + Days Based + Life Assurance + Sick Pay Great Gransden - Hybrid Are you a PLC Programmer looking to join a long-standing, stable company, offering a permanent and long-term career working only with the latest cutting edge FMCG ...

Senior Electrical Design Engineer (Contract)

Senior Electrical Design Engineer (Contract) Location: Chichester, West Sussex Contract Type: Contract / Freelance Duration: Initial contract period with potential extension Rate: Competitive, dependent on experience About the Role We are seeking an experie ...

Principal Electronic Design Engineer

We are seeking an experienced Senior Electronics Engineer / Principal Electronic Design Engineer to join a Cambridge based R&D company who are developing state-of-the-art medical devices technology. You will be a dynamic individual and looking to take the next step in your career. This integral role ...

SENIOR STRUCTURAL ENGINEER

A well-established Structural Engineering consultancy based in Takeley, Essex, delivering innovative, practical, and cost-effective structural engineering solutions across domestic and commercial sectors. With a growing portfolio of exciting projects and a reputation for excellence, we are looking to expand o ...

Python AI Engineer PropTech London (onsite)

Job Description Lead Python Engineer | AI, Python, FastAPI, Django, Microservices, APIs, Cloud | London | up to £130k + EquityBuild AI-powered systems that automate real-world workflows at scale.This is an opportunity to join a fast-growing AI startup building ...

MuleSoft Technical Lead: API & Cloud Integration

A technology consultancy firm in Greater London is seeking a Mulesoft Technical Lead to work on integration technologies including the MuleSoft Anypoint Platform. The ideal candidate should be proficient in Java and familiar with Agile methodologies. This role offers a competitive compensation structure and is c ...

MuleSoft Technical Lead: API & Cloud Integration

A technology consultancy firm in Greater London is seeking a Mulesoft Technical Lead to work on integration technologies including the MuleSoft Anypoint Platform. The ideal candidate should be proficient in Java and familiar with Agile methodologies. This role offers a competitive compensation structure and is c ...

Electronics Design Engineer

Senior Electronics Design EngineerLocation: CheltenhamEmployment Type: PermanentAre you an experienced Electronics Design Engineer looking to step into a senior-level role with full project ownership? We are looking for a talented engineer to join our team and lead the delivery of complex ind ...

Senior Data Engineer

Ready for your next Data Engineering contract and want to be part of a data-led company thats helped deliver over £100 million of social impact into communities.Our partner is looking for a Data Engineer on a contract basis.As the Data engineer you will build, maintain and improve thier data ...

Lab Automation Lead biotech

Your newpany Hays have been exclusively retained by an innovative, growing biotech in London to hire an experienced Lead Automation Engineer into their R&D team. You’ll work within a multidisciplinary team of scientists, engineers, and data specialists, contributing to the development of cutting ...

Electronics Engineer

Our client, who are a well-established UK electronics manufacturer with a rapidly growing innovation and product development division, are looking for an Electronics Engineer – Newbury to join their team on a permanent basis. This role is based on-site in Newbury, within a fast-paced and highly cap ...

Senior Functional Safety Engineer

Join to apply for the Senior Functional Safety Engineer role at YASA Join to apply for the Senior Functional Safety Engineer role at YASA Get AI-powered advice on this job and more exclusive features. We are looking f ...

Linux Desktop Support Associate (London UK office)

This is an opportunity for an Linux Engineer/Administrator with a passion for Linux and Customer Success to build a career with Canonical and support the technical needs of customers leveraging Ubuntu and open source products. You will be accountable for delivering technical support to our employees and custo ...

Design Engineer

Design Engineer / CAD Engineer / Project Design Engineer required to join a global, leading Engineering Manufacturer. The successful Design Engineer / CAD Engineer / Project Design Engineer shall be site-based near Chester, designing and developing complex filtration systems, predominantly Dust Control s ...

Group Head of IT

Group Head of IT Department: IT Employment Type: Full Time Location: London Reporting To: Angus Beaumont Description Harmony is on a mission to be the best life safety partner to work with and for. Rated an ‘Outstanding Emp ...

Full Time Associate Private Dentist

Position Full‑time associate required for a fully private practice in Earls Court. Schedule Monday, Tuesday, Wednesday, Thursday, Friday and occasional Saturday. Working hours: 08:45 – 17:00. Flexibility to work late and cover odd extra days when required. Requirements ...

Full Time Teaching Assistant Needed

Overview Job Title: Level 3 Teaching Assistant Location: Newport Start Date: Immediate Start Salary: £85 - £100 per day Responsibilities The successful Level 3 Teaching Assistant will work closely with class teachers to support learning across the classro ...

Teaching Assistant/ SEN – FULL TIME

Currently seeking SEN Teaching Assistants for full-time roles available ASAP!Principal Resourcing is proud to be working in partnership with a wide network of primary schools and academies across your area. We are currently undertaking an exciting recruitment drive to find motivated, inspiring, ...

Crew Member Macclesfield Full Time

Overview McDonald's are one of the most recognised brands in the world, and the backbone of our brand is commitment to a set of core values: Serve, Inclusion, Integrity, Community and Family. We live by our values every day and are committed to fostering a safe, respectful and inclusive w ...

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    Lead Software Engineer Full Stack Java React Jobs in United Kingdom Job Search Guide, Trends and Insights