1,314,384+ Lead Software Engineer Full Stack Java React Jobs in UK — Top Companies Hiring July 2026

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Remote Product Reliability Engineer — AI Driven, Scalable SaaS

Pinpoint, a high-growth HR tech company in the UK, is seeking a Product Reliability Engineer to ensure the reliability of its recruitment software. This remote role involves handling the entire lifecycle of product issues, enhancing other teams’ efficiency, and integrating AI tools.Ideal candidates will ha ...

Lead Platform Engineer

Our client, a forward-thinking company in the technology sector, is currently seeking a Lead Platform Engineer to join their dynamic team. This permanent, full-time position offers the flexibility of working from their London office or remotely. Key Responsibilities: Architect, ...

Senior Elixir Engineer | Remote Healthtech Leader

Doccla is seeking a Senior Fullstack (Elixir) Engineer to drive the development of compliant, production-grade software in a fast-paced, regulated healthcare environment. The role involves delivering high-quality solutions while working with cross-functional teams to enhance patient safety and operational eff ...

Senior Software Engineer: Scalable E commerce Platform

A fast-growing technology startup is seeking a Senior Software Engineer to shape the future of its core systems. The ideal candidate will work closely with the CTO and the product team, focusing on building reliable and scalable solutions. Confidence in technologies such as Typescript, Node, and React is essenti ...

Senior Frontend Design Engineer: Craft, Systems & UI

A leading software development company in London is hiring a Design Engineer to enhance their design team. The role involves implementing quality UI from design files, evolving the frontend architecture, and maintaining a design system. Successful candidates will have solid expertise in HTML, CSS, and React, wit ...

Frontend Engineer — Real Time GIS Dashboards & Field UX

Arctic Research and Development in Cirencester is seeking a Frontend Software Engineer to architect user interfaces for their Arctic OS. The role involves collaborating with backend and hardware engineers to create intuitive experiences that seamlessly interact with data-rich environments. Candidates s ...

Creative Frontend Engineer: Immersive WebGL & UX

Vista Group is seeking a Creative Software Engineer in London for a 9–12 month fixed-term contract focused on UX/UI. This role involves ownership of web application projects in a creative studio environment, collaborating on innovative solutions for major clients. Candidates should have 3+ years of exp ...

Graduate Software Engineer Hybrid AI FinTech (London)

Oliver Bernard is recruiting for a Graduate Software Engineer to enhance their dynamic team in London. This role offers a unique chance to work with advanced AI technologies within a thriving FinTech SaaS start-up. Ideal candidates are anticipated to be Computer Science graduates from 2025 or 2026, wit ...

Senior Product Engineer

Scaling Tech Teams | Organiser of Ruby in London We’re excited to partner with a profitable SaaS startup experiencing rapid growth and strong ARR in a short timeframe. Due to increasing customer demand, they’re expanding their engineering team and looking for product-minded engineers </ ...

Senior C# Software Engineer X 4

Senior C# Software Engineer X 4 Are you a talented C# and Azure developer ready to take ownership of innovative projects across Web, Desktop, and Cloud environments? Our client, a well-established and forward-thinking software development company, is expanding its team and seeking an exceptional ...

Mid Senior Front End Engineer — Real Time Finance UIs

A prestigious trading firm in London is seeking a Front-End Software Engineer to join their high-performance team. In this role, you will build visually intuitive web interfaces using React and TypeScript, collaborate closely with traders, and refine complex front-end architectures. The ideal candidate will have ...

iOS Engineer

Join to apply for the iOS Engineer role at Wave Mobile Money Join to apply for the iOS Engineer role at Wave Mobile Money Get AI-powered advice on this job and more exclusive features. We're making Africa the first ca ...

C++ 20/23 Engineer Hybrid, High Perf ML Pipelines

Hunter Bond is seeking a talented C++ 20/23 Software Engineer to join an elite tech-driven trading firm in London, offering hybrid work. This role involves building high-performance software solutions and optimizing ML pipelines while collaborating with exceptional technologists. With a modern tech sta ...

Senior Java Programmer – London, UK

Java Lead Programmer – London, UK Leading Design Engineering Company. Specialist engineers to the energy sector. A fast growing, innovative and exciting company to work for, that offers excellent chances for technical and personal development. A lead development en ...

Senior Rust Engineer – On site London, Equity

Understanding Recruitment is looking for a Senior/Principal Software Engineer to join one of the UK's fastest growing start-ups in London. The ideal candidate will have technical acumen rather than a focus on a specific programming language, as the team is open to backend and full-stack engineers. This ...

Senior Embedded Software Engineer, Ring

As a Senior Embedded Software Engineer, you will be a core member of a software team developing Ring's next generation of camera-centric devices. While experience with embedded systems is valuable, we're looking for engineers passionate about building IoT products who are eager to work close to the hardware.<br/ ...

Senior Embedded Software Engineer, Ring

As a Senior Embedded Software Engineer, you will be a core member of a software team developing Ring's next generation of camera-centric devices. While experience with embedded systems is valuable, we're looking for engineers passionate about building IoT products who are eager to work close to the hardware.<br/ ...

Automation Solutions Engineer, EU AMZL RME

Automation Solutions Engineer, EU AMZL RME Job ID: | Amazon UK Services Ltd. We are looking for an experienced Automation Solutions Engineer to join our AMZL Reliability Maintenance Engineering (RME) Team, focusing on the design, programming, testing, and implementation of software solu ...

AI Engineer

Job DescriptionRole SummaryWe are looking for a AI (Fullstack) Engineer to help evolve Logistics into an agent‑first, AI‑native product.This is not a traditional “add AI to an existing system” role.You will design and build LLM‑powered ...

AI Engineer

Job DescriptionRole SummaryWe are looking for a AI (Fullstack) Engineer to help evolve Logistics into an agent‑first, AI‑native product.This is not a traditional “add AI to an existing system” role.You will design and build LLM‑powered ...

Backend Software Engineer C# Rust HFT

London, Greater London | £65k - £80k per year Backend Software Engineer / Developer (C# .Net Rust Low Latency HFT) London / WFH to £80k+ Opportunity to join a hugely profitable High Frequency Trading firm that specialise in crypto markets and earning substantial bonuses in a hands‑on role ...

Backend Software Engineer C# Rust HFT

Backend Software Engineer / Developer (C# .Net Rust Low Latency HFT) London / WFH to £80k+Opportunity to join a hugely profitable High Frequency Trading firm that specialise in crypto markets and earning substantial bonuses in a hands-on role, working with C# and Rust.As a Backend Softwar ...

Graduate / Junior Developer, Python, Linux, C#, Java London

Graduate / Junior Developer, Python, Linux, C#, Java – London (Teck stack: Graduate / Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate / Junior Developer) Since 2006 our client’s revolutionary marketing software platform has been helping businesses ...

Software Engineering Lead / Applied AI Engineering

Would you enjoy working on our cutting-edge products? Are you ready for a lead Engineer role? About the Business LexisNexis Risk Solutions provides customers with solutions and decision tools that combine public and industry specific content with advanced technology and analytics to assist them in e ...

Fintech Software Leader — Hybrid, Equity, Deputy CTO Path

MW Recruitment Limited is seeking a Head of Software Development to lead the software engineering function. This role involves strategic decision-making, managing distributed engineering teams, and ensuring alignment with business objectives. Candidates should have extensive software development experience, part ...

Agentic AI Engineer

Go Back To Current Openings Agentic AI Engineer, AI Automation Kuala Lumpur Federal Territory of Kuala Lumpur Malaysia We’re looking for an Agentic AI Engineer to join our AI Automation team, building internal AI-Automation applications. We create agentic solutions tha ...

Agentic AI Engineer

Go Back To Current Openings Agentic AI Engineer, AI Automation Kuala Lumpur Federal Territory of Kuala Lumpur Malaysia We’re looking for an Agentic AI Engineer to join our AI Automation team, building internal AI-Automation applications. We create agentic solutions tha ...

Senior Backend Engineer — Payments & Fintech (Remote)

Jobgether is seeking a Senior Software Engineer in the United Kingdom to build and evolve high-scale backend systems essential for global ecommerce. This role entails designing resilient distributed systems, ensuring secure money movement, and collaborating with cross-functional teams. The ideal candid ...

Senior Cloud Control Plane Engineer (Kubernetes, Terraform)

Confluent Inc is looking for a Software Engineer to work on the Cloud Control Plane. In this role, you will design and implement distributed solutions and provide operational support thereafter. The ideal candidate has strong Kubernetes skills, experience with programming languages such as Go, C++, Jav ...

Principal Engineer, Personalisation & ML Architect

A leading retail company is seeking a Principal Software Engineer to define and drive the technical strategy for personalisation. In this role, you will design scalable systems, mentor engineers, and work closely with various teams to deliver customer-centric solutions. The ideal candidate will have strong exper ...

Senior Software Engineer I, Infrastructure

Senior Software Engineer I, Infrastructure London, England, United Kingdom Join Axon and be a Force for Good. Your Impact As a Senior Software Engineer on Dedrone’s Infrastructure Services team, you will design, build, and evolve the core systems that power both our de ...

Staff Software Engineer Engine by Starling

At Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a ...

VP AI Solutions Architect – Cloud Native & LLM Delivery

A global financial services firm is seeking an AI Application Engineer to design, build, and deploy cloud-native AI applications. This role involves leading development efforts, collaborating with various teams, and ensuring rapid delivery of solutions leveraging AI/ML technologies. Ideal candidates will have ex ...

Fintech Software Engineer – Payments & Cloud

Edenred Italia S.r.l. seeks a Software Engineer for its London office, focusing on the design and implementation of innovative payment solutions. You will be part of a collaborative team working under Edenred PayTech, a leading fintech company managing over €100 billion in global payments. Ideal candidates will ...

Senior Staff Backend & Data Engineer FinTech (Relocation)

Agoda is looking for an experienced backend engineer in Greater London, UK to architect and maintain scalable systems fundamental to our FinTech solutions. The ideal candidate has over 8 years of experience in software development, particularly in Java, Kotlin, Scala, or C#, with expertise in big data and real-t ...

Senior Data Platform Engineer – Ultra Scale Spark Pipelines

CrowdStrike Holdings, Inc. seeks a Senior Software Engineer to join their data engineering team located in Greater London. The successful candidate will design and operate systems for processing vast amounts of data, building a hyper-scale data lake while utilizing tools such as Java, Spark, and Kubernetes. < ...

Staff Software Engineer AWS Cloud & Microservices

Gravity Engineering Services Pvt Ltd. is looking for an experienced software engineer to architect and develop high-performance microservices that drive job matching solutions. The role involves using cloud-native technologies on AWS, including Kubernetes and CI/CD pipelines. The ideal candidate will h ...

On Site Java Developer for National Security — SC/DV

Frontier Resourcing is seeking a Software Engineer to join their innovative team focused on developing impactful technology. Based in Manchester or other locations, this role involves working on AI-powered tools and secure data pipelines, contributing to national security technology. The ideal candidat ...

Senior Backend Engineer II — Europe Growth & Hybrid Work

United States Digital Space LLC is looking for a Senior Software Engineer II to join their team in Greater London. The role focuses on designing and maintaining scalable tools using Java and Spring Boot while collaborating across teams to drive innovative solutions that enhance customer value. With a s ...

Senior Backend Engineer — Payments & Fintech

United States Digital Space LLC is seeking a Senior Software Engineer to shape the future of technology and drive innovation across Europe. The role involves designing and maintaining core components of systems supporting payments and internal operations. The ideal candidate has over 5 years of experie ...

Senior Software Engineer: Cloud Platform & Microservices

Dormont Manufacturing Co is looking for a Senior Software Engineer to design, develop, and maintain microservices and core infrastructure. This role requires hands-on experience with Java, JavaScript/TypeScript, Terraform, and Kubernetes. The ideal candidate will contribute to system architecture while ...

Real Time Data Engineer for LLM & Low Latency Systems

A data-driven technology firm in London is seeking a Software Engineer to develop and maintain data acquisition systems using social media inputs. The role requires strong programming skills, particularly in Java (Spring), and experience with Postgres, GCP, and Docker. Candidates should also be familiar with bui ...

DV Cleared Data Science Engineer Cloud & ML

A prominent technology recruitment company is seeking a Data Science Engineer to support a major public sector programme in London or Manchester. The role involves designing and maintaining scalable data processing systems, collaborating with multidisciplinary teams, and requires DV Clearance. Candidates should ...

Cloud Software Engineer Build Scalable AI Systems

Amazon is looking for a Software Development Engineer I to work in Edinburgh, UK. This role involves designing and building scalable services, contributing to innovative products, and participating in code reviews. Candidates should be enrolled in or have completed a degree in a relevant field and have experienc ...

Senior Backend Engineer – Identity & Access (OAuth/OIDC)

Ripple is looking for a Senior Software Engineer to join our Authentication & Authorisation team in London, UK. You’ll own the identity platform design and delivery, focusing on authentication flows, IdP integrations, and more. The ideal candidate will have significant backend engineering experience in ...

AVP Java Developer Hybrid OpenShift & Microservices

Citi is seeking a motivated Engineer to develop tools for its global developer community. The role involves working on Java and SpringBoot microservices, engaging in all aspects of the Software Development Lifecycle, and providing expert support for developers. The position offers a competitive salary, ...

Senior Backend Engineer: Cloud Microservices

JP Morgan Chase is looking for a Software Engineer III to contribute to innovative digital banking solutions in Greater London. Join a dynamic team dedicated to delivering top-tier banking experiences through cloud-native architecture. The role focuses on building secure, scalable applications and enha ...

Principal Software Consultant: Secure Tech & Client Delivery

FORT is seeking a Principal Software Engineer to develop innovative solutions and engage directly with clients. You will work on critical projects supporting the UK's national security, leading technical designs while being part of a high-performance team. The role requires strong Java engineering skil ...

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