1,937,561+ Lead Software Engineer Full Stack Java React Jobs in UK — Top Companies Hiring July 2026

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GenAI Engineer

Senior Software Engineer, AI Location: London (Hybrid: 2 days in office, 3 days remote) Position Type: Permanent Are you a seasoned software engineer passionate about pushing the boundaries of what's possible with Generative AI? We are a leading global prov ...

GenAI Engineer

Senior Software Engineer, AILocation: London (Hybrid: 2 days in office, 3 days remote) Position Type: PermanentAre you a seasoned software engineer passionate about pushing the boundaries of what's possible with Generative AI?We are a leading global provider of financial informati ...

Senior Staff Engineer (Scala/Java) – Hybrid AI Scale up

Morson Human Resources Limited is seeking a Senior Staff Engineer (Scala or Java) in Manchester. This role offers the chance to lead engineering efforts within a dynamic AI technology scale-up. Your responsibilities will include mentoring engineers, defining engineering strategies, and driving software ...

Senior C# Developer .Net AWS Finance

Senior C# Developer / Software Engineer (C# .Net AWS) London to £90k Are you a technologist who enjoys contributing to technical discussions and using the best tool for the job? You could be progressing your career at a global, financial Market Data provider whilst enjoying a range of per ...

Software Developer, Risk and Regulatory

Job DescriptionAs a Software Developer, you will be working in a small team of talented developers following agile practices, to develop high quality scalable solutions.The Risk and Regulatory team’s goal is to form a function around an ever-growing road map. This will be covering not only So ...

Software Developer, Risk and Regulatory

Job DescriptionAs a Software Developer, you will be working in a small team of talented developers following agile practices, to develop high quality scalable solutions.The Risk and Regulatory team’s goal is to form a function around an ever-growing road map. This will be covering not only So ...

Senior Application Builder, Ring Application Services

The Ring team is looking for a passionate and talented Senior Application Builder who has experience building world-class Android mobile apps and the ability to design, build, and maintain scalable cloud-based backend systems. You will be responsible for developing mobile applications and cloud services that int ...

Staff Software Engineer, Product Engineering, UK

Hi I’m Abhik, Ashby's Co-Founder and VP of Engineering. We’re looking for an ambitious full-stack engineer who is laser‑focused on solving customer problems and making the right long‑term investments to solve them not only today but in our future features and products. About the Role and How We ...

eDV Cleared Back End Developer

Lead Principal Consultant - National Security & Defence iO Associates are working closely with a leading Defence & National Security supplier in their search for a Data Engineer / Back End Developer to join the growing team on a contract basis. Duration: Initi ...

Senior Kotlin Engineer

Overview Senior Kotlin engineer to join a newly forming pod. Contribute to design discussions, deliver elegant Kotlin solutions, and help scale fintech products. The team is building a next-generation lending platform, a next-gen credit card, and an auto-finance product, with ongoing product laun ...

DevOps Engineer

DevOps Engineer – FinTech – Newcastle(Tech stack: DevOps Engineer, PowerShell, C#, Java, Python, Ansible, Terraform, Docker, Kubernetes, Docker Swarm, ELK, Grafana, CI/CD, TeamCity, SQL Server, Windows, Linux, Programmer, Developer, Architect, DevOps Engineer)Our client is a cutting-edge ...

DevOps Engineer

DevOps Engineer – FinTech – Newcastle(Tech stack: DevOps Engineer, PowerShell, C#, Java, Python, Ansible, Terraform, Docker, Kubernetes, Docker Swarm, ELK, Grafana, CI/CD, TeamCity, SQL Server, Windows, Linux, Programmer, Developer, Architect, DevOps Engineer)Our client is a cutting-edge ...

Principal Full Stack Architect: AI Driven Platform Leader

Edwards Vacuum seeks a Principal Full Stack Engineer based in Clevedon, UK. This role is responsible for designing and developing a cradle-to-grave software support application for Thermal Management Solutions, overseeing architectural standards and leading AI-assisted development practices. Candidates ...

Lead IEC61850 Application Engineer

**Job Description Summary**Responsible for designing , developing and testing Embedded Software (Firmware), platforms and systems that control and runs on devices that need to be tailored to the needs of the hardware that it has to control and run on (i.e. directly controls the real time functions of a physi ...

Backend Engineer (Node + TypeScript) — Hybrid + Equity

Skin + Me in London is looking for a Backend Engineer to enhance their e-commerce and clinical journey systems using a Node and React stack. You will be responsible for building APIs, data models, and handling consultations with a focus on cleanliness and efficiency in code. The role requires solid exp ...

Sr. Software Engineer C++, System Software

Overview Roku is the #1 TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our mission is to be the TV streaming platform that connects the entire TV ecosystem. We connect consumers to the c ...

Senior Software Engineer / Senior Software Developer

At UKTL, your work directly strengthens the UK’s technological, cyber, and national resilience. You’ll collaborate with expert engineers, government partners, and industry specialists to detect, understand, and counter emerging threats. If you’re looking for meaningful work in an inclusive environm ...

Founding Product Engineer (£70K £120K + Equity) at cubic

Founding Product Engineer Salary: £70K - £120K + 0.10% - 1.00% Equity Company Description: cubic - VC-backed AI-native replacement to GitHub Location: London, UK Job Description: Join cubic as our first Founding Product Engineer to build the ...

Software Engineer, Sustaining Engineering

Software Engineer, Sustaining Engineering Join to apply for the Software Engineer, Sustaining Engineering role at Canonical Software Engineer, Sustaining Engineering Join to apply for the Software Engineer, Sustaining Engineering r ...

Senior Frontend Engineer, React/TypeScript – Fintech Growth

United States Digital Space LLC is seeking a Lead Software Engineer to drive innovative solutions at the heart of our newest team at JPMorgan Chase. You will focus on building scalable and performant front-end applications using React and TypeScript, contributing to cross-functional projects while advocating ...

Founding AI Product Engineer — Equity, London

A pioneering tech startup in London is seeking a Founding Product Engineer to lead the development of an innovative AI-native code review platform. In this role, you will collaborate with experienced founders to shape core product features and the technical roadmap. Ideal candidates should have at least 6 years ...

Hands On Tech Lead Greenfield Enterprise Web & Cloud

Morgan McKinley is looking for a Hands-On Player-Coach to lead the technical team in a greenfield development project aimed at automating medical logistics. This role involves spending 70% of the time coding and 30% mentoring developers. The ideal candidate has substantial experience in full-stack deve ...

Senior Java/Kotlin Backend Engineer – Spring Boot

American Express is seeking a Java Engineer in Burgess Hill, United Kingdom. The role requires a minimum of 4-5 years of professional experience in software development, proficiency in Java and/or Kotlin, and experience with microservices architecture and RESTful API design using Spring Boot. This is a ...

Production Management Senior Engineer Senior Vice President

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 deploying advanced AI to helping shape global markets, we bu ...

Senior/Principal Software Engineer

Senior/Principal Software Engineer Application Deadline: 31 May 2026Department: Software EngineeringEmployment Type: PermanentLocation: London (Hybrid)Compensation: £70,000 - £100,000 / year Description Please note: This role requires applicants to ho ...

Senior Staff Engineer (Scala/Java) – Hybrid AI Scale up

Morson Human Resources Limited is seeking a Senior Staff Engineer (Scala or Java) in Manchester. This role offers the chance to lead engineering efforts within a dynamic AI technology scale-up. Your responsibilities will include mentoring engineers, defining engineering strategies, and driving software ...

Senior Java Platform Engineer | Spring Boot, K8s, Cloud

NextWave Consulting Ltd is seeking a Senior Software Engineer in the UK with hybrid work options. The successful candidate will lead the development of a scalable Data Fabric platform, focusing on Java and Spring Boot microservices while mentoring team members. Required skills include hands-on experience in CI/C ...

Senior Java Engineer: Low Latency Market Connectivity

A leading technology company is seeking an experienced Java Software Engineer for a full-time role in London, England. The ideal candidate should have 10+ years of experience in core Java development and expertise in multi-threading, messaging techniques, and low latency trading systems. Education in Computer Sc ...

AI First Senior Software Engineer – Cloud Native Lead

IRIS Software Group is looking for a Senior Software Engineer to join their team in the UK. This role involves designing and delivering scalable systems while mentoring junior engineers and driving technical excellence. You will work on cutting-edge .NET technologies and modern UI frameworks to create solutio ...

.NET Developer, CMS, Sitecore, EpiServer, Umbraco

Overview .NET Developer, CMS, Sitecore, Optimizely, Umbraco - London Tech stack: .NET, CMS, Sitecore, Optimizely, Umbraco, .NET 10.0, C# 14, Angular 21, Agile, Full Stack Engineer, Architect. Responsibilities Work on the development of complex enterprise .NET pr ...

Staff Software Engineer Transport

SummaryAs part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues! With ethical values that run right through the company’s core and technology leaders that truly understand ...

Staff Software Engineer Continuity

SummaryAs part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues! With ethical values that run right through the company’s core and technology leaders that truly understand ...

Staff Software Engineer Continuity

SummaryAs part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues! With ethical values that run right through the company’s core and technology leaders that truly understand ...

Staff Software Engineer Transport

SummaryAs part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues! With ethical values that run right through the company’s core and technology leaders that truly understand ...

Data Analyst

Data Analyst Onsite Requirements: Remote Start Date: ASAP Role Duration: 1 year Clerance Requirements: Active SC clearance Inside IR35 - umbrella only Role Description We're looking for a Data Engineer whose ...

Affiliate Tech Lead 5 month contract

Looking for an Affiliate Java/Angular Tech Lead - 2 days a week in Leeds.5 month contract to start in October and finish in February. Who We Are:AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been he ...

Affiliate Tech Lead 5 month contract

Looking for an Affiliate Java/Angular Tech Lead - 2 days a week in Leeds.5 month contract to start in October and finish in February. Who We Are:AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve ...

Affiliate Tech Lead 5 month contract

Looking for an Affiliate Java/Angular Tech Lead - 2 days a week in Leeds.5 month contract to start in October and finish in February. Who We Are:AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve ...

Affiliate Tech Lead 5 month contract

Looking for an Affiliate Java/Angular Tech Lead - 2 days a week in Leeds.5 month contract to start in October and finish in February. Who We Are:AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been he ...

Java Technical Specialist (Low Latency)

Java Technical Specialist (Low Latency) At a Glance Senior individual contributor role in a high‑growth prediction markets trading firm Core stack: Java, Kafka, Aeron, FIX Protocol exchange and clearing infrastructure Salary: £80,000 – £95,000 + highly attracti ...

Senior Spark Tech Lead Scalable Data Platforms (Remote/Hybrid)

Cloudera is seeking a Senior Staff Software Engineer specializing in Spark (Java) to enhance data engineering solutions. This role involves developing features in a distributed environment and contributing to Apache Spark. The ideal candidate has over 6 years of experience in software development and s ...

Senior Software Engineer — Lead on Core App & Scrums

Rockfield Specialist Recruitment is seeking a Senior Software Developer in the United Kingdom to join our growing team and report to the Development Manager. The ideal candidate will have at least 5 years of experience in a development role and play a lead part in maintaining our core application and related ...

Lead C# .NET Software Engineer – Hybrid, Defence Tech

慨正橡扯 is seeking a Lead Software Engineer specializing in C# .NET to join our team in Capability Green, Luton. This role provides an excellent opportunity to work within the Electronic Warfare sector and contribute to cutting-edge defense technology. The ideal candidate will have several years of softwa ...

Software Developer

Software DeveloperLocation: Worthing / Brighton (hybrid - 1 or 2 days per month in office required)Salary: circa. £70k (flexibility, depending on experience)Tec Partners are working with a well-known utilities provider, who are looking for an experienced Software Deve ...

Software Developer

Software DeveloperLocation: Worthing / Brighton (hybrid - 1 or 2 days per month in office required)Salary: circa. £70k (flexibility, depending on experience)Tec Partners are working with a well-known utilities provider, who are looking for an experienced Software Deve ...

Senior Java Architect High Performance FX Platforms

JPMorgan Chase & Co. is hiring a Lead Software Engineer for their FX Services team in the Corporate & Investment Bank. This integral role involves designing, enhancing, and delivering market-leading technology products. The ideal candidate will have senior-level expertise in Java backend development, microser ...

Front End Developer (React and React Native)

We’re looking for an experienced Frontend Developer (React & React Native) to join our Digital Solutions team on a 12‑month fixed‑term contract.In this hands‑on role, you’ll play a key part in growing our digital platform, delivering intuitive omni‑channel services for our customers, an ...

Front End Developer (React and React Native)

Front-End Developer (React and React Native)CompetitiveBromley,KentFixed Term ContractFull-TimeWe’re looking for an experienced Frontend Developer (React & React Native) to join our Digital Solutions team on a 12‑month fixed‑term contract.In this hands‑on role, ...

Staff Software Engineer, Product Engineering, UK

Hi I’m Abhik, Ashby's Co-Founder and VP of Engineering. We’re looking for an ambitious full-stack engineer who is laser‑focused on solving customer problems and making the right long‑term investments to solve them not only today but in our future features and products. About the Role and How We ...

Platform Lead Developer – Cloud Native & Multi Tenant

Vodafone Group Plc is seeking a Platform Lead Developer based in the United Kingdom to design, build, and maintain cloud-native services for its Digital & IT platform. The role requires over 10 years of experience, proficiency in languages such as Java, Node.js, and React, and a knowledge of microservices and AP ...

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