273,635+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

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Mission Critical Software Engineer (Secure Cloud/API)

Envitia is seeking a skilled Software Engineer to design and maintain secure software applications in classified environments. The role involves working within Agile teams to deliver scalable solutions across various technology estates. Candidates must hold a high-level security clearance and have experience ...

Senior Principal Java Engineer — Platform & API Gateways

Anaplan is seeking a Senior Principal Software Engineer to join our team in Manchester, UK. You will lead the design and delivery of platform capabilities that power Anaplan’s enterprise-scale solutions. Ideal candidates will have a strong background in software engineering and expertise in backend lan ...

Senior Real Time Streaming Platform Engineer

CrowdStrike Holdings, Inc. is seeking a Senior Software Engineer for their Real-Time Streaming Platform team. This role focuses on building scalable streaming services that enable real-time data processing capabilities. You will contribute to the infrastructure that directly impacts security telemetry process ...

Test Automation Engineer (SDET) Selenium & Cloud

Kainos, located in Budock Water, is searching for a passionate Test Automation Engineer (SDET) to enhance their testing capabilities and deliver high-quality software solutions. You will collaborate closely with Developers and Product Owners, developing automated tests using technologies such as Selenium and ...

Platform Services Engineer Build Scalable Backend Systems

Addepar is seeking a skilled backend software engineer to join its Platform Services team in Edinburgh. This role focuses on developing resilient distributed services and supporting product operations through engineering excellence. Candidates should be comfortable working independently and thrive in ambiguou ...

Senior Software Engineer — Cloud, AI & Data Leadership Path

MCS Group in Belfast is looking for a Senior Software Engineer to join their new engineering presence. This role involves designing and building scalable applications across cloud and data-driven environments, working closely with enterprise clients. The ideal candidate will have strong commercial soft ...

Senior Software Engineer — Timetabling Platform & AI

YRA Solutions Ltd. is seeking a Software Engineer II to enhance the CrunchTime platform, which serves modern university needs. You will design, build, and ship features within a small, agile team, directly impacting the product's evolution. The ideal candidate holds a Bachelor’s degree and has 3+ years ...

Backend Engineer, Payments Platform

Teya is looking for a Software Engineer to join our team in London. You will play an essential role in developing technology for small and medium-sized businesses across Europe. Collaborating with diverse teams, you will help design, develop, and maintain our core systems. The ideal candidate will have at lea ...

Senior Software Engineer, Endpoint DLP – Go & Kernel

A leading cybersecurity firm is seeking a Senior Software Engineer for their Agent Endpoint DLP team in London. The role involves using your strong programming skills to implement new features and improve existing functionalities. Collaborate with cross-functional teams and contribute to code quality and secure ...

Lead C# Software Engineer in London Quant Capital

Lead C# Software Engineer London, United Kingdom Posted 11 months ago Requirements Strong software analysis, design, and development skills Minimum 5 years of professional experience in C#, Python, C++, or Java Knowledge of relational da ...

Senior Software Engineer: Scalable Backend, Cloud & DevOps

Computer Network Defence Ltd (CND) in Farnborough is seeking a talented Software Engineer to join their dynamic development team. In this role, you will contribute to the design, development, and continuous improvement of high-quality software systems, working across both front-end and back-end technologies. ...

Senior Java Architect – Real‑Time API Platform Leader

Morgan Stanley is seeking a Senior Software Engineer to join the FID eTrading team in London. This critical position demands a highly skilled hands-on Java developer with extensive experience in real-time systems and internet-facing APIs. Responsibilities include leading architectural decisions and delivering ...

Founding Software Engineer Cybersecurity Startup (London)

Oho Group is looking for a Founding Software Engineer in London to help build the future of cybersecurity. This role provides a unique opportunity to join a founding team recognized for successfully scaling security companies. The ideal candidate will design and build core systems, solve complex securi ...

Senior Lead Software Engineer – Commodities Front Office

J.P. MORGAN is looking for a Senior Lead Software Engineer to join their Commercial and Investment Banking – Base Metals team. This role requires strong experience in software engineering, particularly in Python or Java, and the leadership to guide and develop innovative technology solutions for risk manageme ...

Software Development Engineer — End to End Feature Ownership

Amazon in Greater London is looking for a talented Software Development Engineer to join the Rufus team. The role involves designing technical solutions and enhancing user experiences for millions of customers. Candidates should have a background in professional software development, proficient in languages l ...

Platform Engineering Lead Cloud & Kubernetes

Fairygodboss is looking for a Senior Lead Software Engineer (Platform) to set technical direction across squads, ensuring the implementation of robust engineering standards and best practices. The role involves developing secure, high-quality code and designing Kubernetes-based platform services. Candi ...

Senior Lead SWE – Base Metals & Commodities Tech

JPMorgan Chase & Co. seeks a Senior Lead Software Engineer to enhance and deliver technology products within their Commercial and Investment Banking – Base Metals team. This role requires collaboration with Trading, developing risk management applications, and providing technical guidance. Applicants s ...

Lead Software Engineer Asset Management Data Platform

Join us and shape the future of data and analytics at JPMorgan Chase. As a Lead Software Engineer, you will have the opportunity to design and deliver market-leading technology products that support our business objectives. You will collaborate with talented colleagues in an inclusive, agile environment wh ...

Cyber Security Engineer London

About the job Cyber Security Engineer - London Note: This job does not offer any Visa sponsorship. We are looking for applicants already living in the United Kingdom. Overview Our client is seeking a highly skilled and motivated Cyber Security Engineer to their dynamic team ...

Platform Engineer

Leading Crypto Trading Client requires a Platform Engineer with Web Scraping, Python and networking tools and Linux. All rounder position will look after Network Virtual Servers, self starter, must be able to communicate with senior stakeholders:As a Platform Engineer, you will:Act as infrastruct ...

Full Stack Software Developer

Full Stack Software Developer Location: Kongsberg, NO Employment type: Employee Place of work: Hybrid Offshore/Onshore: Onshore TechnipFMC is committed to driving real change in the energy industry. Our ambition is to build a sustainable future through relentless innovation and ...

Tech Lead: Senior Full Stack Engineer (Hybrid)

Maxwell Bond in Manchester is seeking a Senior Full Stack Engineer to step into a Tech Lead role. This position involves leading a small engineering team while remaining hands-on in development, influencing technical direction, and enhancing software delivery. The ideal candidate will possess strong sk ...

Data Solution Architect

Join to apply for the Data Solution Architect role at Kainos 1 day ago Be among the first 25 applicants Join to apply for the Data Solution Architect role at Kainos Join Kainos and Shape the FutureAt Kainos, we’re ...

Lead Front End Engineer

Are you the kind of engineer who doesn't just build frontends, but defines how they should be built at scale ? My client is looking for a Lead Front End Engineer to take ownership of a modern, high-impact web platform, shaping both the technical direction a ...

Lead Front End Engineer

Are you the kind of engineer who doesn't just build frontends, but defines how they should be built at scale?My client is looking for a Lead Front End Engineer to take ownership of a modern, high-impact web platform, shaping both the technical direction an ...

Staff Engineer

Who are we? Smarkets: Predicting the Future of Betting Smarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise betting - ...

Staff Engineer

Who are we?Smarkets: Predicting the Future of BettingSmarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise bettin ...

Security Engineer III

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer III at JPMorganChase within the CTC LOB, you serve as a seasoned member of an agile team to design and deliver trusted market‑leading technology products in a sec ...

Software Engineer III SDET, Python

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer III at JPMorganChase within the Commercial & Investment Bank, particularly in the Payments Technology, you serve as a seasoned member of an agile team to design and d ...

Senior Frontend & React Native Engineer – London (On site)

A growing AI startup in London is seeking experienced Frontend Engineers and React Native Engineers to join their ambitious team. The ideal candidates will have a degree in Computer Science or a related field, and a track record of thriving in fast-paced startup environments. This full-time role offers a salary ...

Remote React/TypeScript Frontend + C# Full Stack Engineer

A software development company is seeking a Remote-first React Developer to join their team. The role involves building high-quality frontend features with React and contributing to backend services in C#. Ideal candidates will have proven experience in React and TypeScript, with a proactive approach to problem- ...

Remote Frontend Engineer (React/TypeScript) – Scale Up FinTech

A leading FinTech scale-up in the United Kingdom is seeking a Senior Frontend Engineer to join their innovative team. This role involves taking ownership of frontend projects, developing user interfaces with React and TypeScript, and closely collaborating with backend teams. The company offers a flexible remote ...

Remote Senior Full Stack Engineer — React/TypeScript/Node.js

A leading technology firm in the UK is seeking a Senior Full Stack Engineer skilled in React and TypeScript. This role is remote with occasional team meetups in London. Responsibilities include contributing to technical discussions and tackling complex challenges in the Fintech sector. Ideal candidates will poss ...

Cloud Engineer

Job DescriptionCloud Engineer, AWS, Terraform, COR7559 This is an excellent opportunity for an AWS Cloud Engineer to join an Oxfordshire-based scale-up in the MedTech sector.The Role Working as part of a dedicated team, the primary focus of the AWS Cloud Eng ...

Senior Backend Engineer – Mental Health Tech4Good Startup

Role : Senior Product Engineer (Backend) Salary : up to 105k Location : East/Central London (x4 days per week onsite) Tech stack includes : NodeJS, TypeScript, React, PostgreSQL, GraphQL, AWS, GitHub Actions, Pulumi. Current team size : x2 ...

Senior Product Engineer

Role : Senior Product Engineer (Backend) Salary : up to 105k Location : East/Central London (x4 days per week onsite) Tech stack includes : NodeJS, TypeScript, React, PostgreSQL, GraphQL, AWS, GitHub Actions, Pulumi. Current team size : x2 ...

Lead Backend Engineer

Role : Lead Backend Engineer Salary : up to 125k Location : East/Central London (x4 days per week onsite) Tech stack includes : NodeJS, TypeScript, React, PostgreSQL, GraphQL, AWS, GitHub Actions, Pulumi. Current team size : x2 Engineers (p ...

Senior JavaScript Engineer in Charing Plexus Resource Solutions Ltd

Collaboration with Design Team You will collaborate with our design team on feature ideation and user experience. Your role will involve building and maintaining TypeScript components using React, Node, and NextJS. Additionally, you will be responsible for translating Figma designs into modular, reu ...

Adoption Software Engineer XDP

Join us as an Adoption Software Engineer at Barclays, where you will bring to life a new Digital Platform capability by transforming and modernising our digital estate to build a market‑leading digital offering with customer experience at its heart. This is an exciting and key role where you will a ...

Adoption Software Engineer XDP

Join us as an Adoption Software Engineer at Barclays, where you will bring to life a new Digital Platform capability by transforming and modernising our digital estate to build a market-leading digital offering with customer experience at its heart. This is an exciting and key role where you will a ...

Adoption Software Engineer XDP

To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues. Accountabilities Development and delivery of high-quality software solutions by using industry aligned p ...

Lead DevOps Engineer (AI Focused)

Lead DevOps Engineer (AI- Focused) Mandatory hands-on experience supporting AI/ML or GenAI p latforms About Synechron: Synechron is a leading digital transformation consulting firm dedicated to delivering innovative technology soluti ...

Lead Machine Learning Engineer, Associate Director (London)

The Fitch Group Emerging technology AI Center of excellence (COE) group is seeking a principal machine learning or AI engineer to be part of a team dedicated to building and supporting Generative AI, Machine learning, Deep Learning, and Data science solutions across the organization. The position w ...

Software Engineering Specialist

Software Development Specialist / Professional Location: London, Cheltenham, Ipswich, or Manchester (Onsite) Hours: 37.5 hours per week Clearance Requirement: Active DV (Developed Vetting) clearance is mandatory. About the Role We are seeking engineers with stron ...

Expert Backend Engineer

Come join the company that is reinventing cloud security and empowering businesses to thrive in the cloud. As the fastest-growing startup ever, Wiz is on a mission to help organizations secure cloud environments that will accelerate their businesses. Trusted by security teams all over the world, we have a ...

Automation Test Engineer(With DevOps) SC Cleared

Automation Test Engineer(With DevOps) - SC Cleared We are looking for a highly experienced Software Automation Test Engineer in Test with a strong background in software testing, automation development, and DevOps. The ideal candidate will have hands‑on experience across a wide range of technolog ...

Senior Full Stack Engineer

Requirements 5+ years of software development experience 3+ years of experience developing and operating distributed systems in production 2+ years of experience writing backend code in Rust Proficient with AI tools Experience with Kubernetes and Dock ...

Senior Software Engineer Backend Focus (Viator)

Senior Software Engineer - Backend Focus (Viator) Join to apply for the Senior Software Engineer role at Tripadvisor Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 300, ...

Machine Learning (Speech) Contract

Senior Machine Learning Research Engineer – Speech, Audio, and Generative AI This role is available on a permanent basis or as a 6‑month contractor via an agency. The role is inside IR35. Role and Responsibilities Drive the research, design, development, and evaluation of in ...

Software Engineer, Internship – Infrastructure

Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Are y ...

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    Fullstack Software Engineer Java React Aws Jobs in United Kingdom Job Search Guide, Trends and Insights