• United Kingdom Jobs Expertini profile avatar

    • 254,871+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

    Professional job seekers finding United Kingdom jobs through Expertini
    750,000+ professionals on Expertini 750,000+ Candidates
    Join our global community
    Explore Leading Employers
    High-Paying Careers
    Expertini Penguin Mascot Resume Score™
    Resume Score™ Instantly
    Upload Your CV
    Quick 30-second process

    Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

    1. Expertini
    2. United Kingdom
    3. Jobs
    4. Fullstack Software Engineer Java React Aws Jobs in United Kingdom

    5. Download PDF

    Reset

    Create Job Alert
      Add Alert

     
     
    Create Alert
     
    Reset

    Founding AI Engineer: Healthtech Platform (Equity)

    A healthcare technology startup is seeking a Founding Engineer to lead the development of an AI-powered Neurodevelopmental Operating System. This role involves building secure, production-grade software to enhance ADHD and autism assessments within NHS workflows. Ideal candidates will have 1-4 years of full-stac ...

    Principal Research Systems Engineer

    Job SummaryBased at our Global Technology Centre Bristol we are looking for a Principal Engineer with a strong background in Systems Engineering to help shape the future of flight. Our aim is to deploy a modern systems engineering ethos across the broad domains within the portfolio (Software, Controls, Struct ...

    Principal Platform Architect — Field Enablement

    Centrica is seeking a Principal Software Engineer to provide technical leadership and architectural vision for the Field Platform. You will define the long-term architecture and lead efforts to improve performance and reliability while driving innovation through AI-enabled tooling. Your role will invol ...

    NVH Engineer – Stealth Marine Systems (On Site)

    Gold Group is seeking an experienced NVH Engineer to join their defence engineering team in Barrow-in-Furness. This role involves working on advanced marine systems, developing test procedures, and analyzing noise and vibration measurements to meet stealth performance goals. The ideal candidate will po ...

    Backend Engineer, AI Data Platform (On Prem + Cloud)

    DataDirect Networks (DDN) in Bristol is looking for a Backend Software Engineer to join the Control Plane team of the Infinia AI Data Platform. This position is crucial in building backend services that support manageability and automation across hybrid environments. You will enhance API frameworks, de ...

    OT Security Engineer – Nuclear Plant (On‑Site)

    ALTEN LTD - UK is seeking an Operational Technology (OT) Engineer in Heysham to support the nuclear sector. The role involves ensuring the security and compliance of OT systems, offering opportunities for hands-on experience and skill development in a safety-critical environment. Candidates should have ...

    Remote 2nd Line IT Engineer — M365 & Azure Expertise

    Redsquid, located in Glasgow, is seeking an experienced 2nd Line Technical Support Engineer to join our team. You will be responsible for diagnosing and resolving various IT issues remotely, building and configuring hardware and software solutions, and providing excellent customer service. The ideal ca ...

    Graduate Mechanical Design Engineer Hands On CAD & Growth

    V7 Recruitment is seeking a Graduate Mechanical Design Engineer to join a growing engineering business in Runcorn, England. This role is a fantastic opportunity for graduates or early-career engineers to gain hands-on design experience in a dynamic environment. The successful candidate will create 3D m ...

    Lead Substation Engineer: Secondary Design & Turnkey HV

    Snc-Lavalin is hiring a Lead Secondary Engineer in Birmingham, UK. The role involves technical leadership for secondary engineering in projects related to HV GIS/AIS substations, including managing design packages and coordinating with local and remote teams. Candidates should have a degree in electric ...

    SDN Engineer: Cisco ACI & NSX T Expert

    CGI is looking for a Software Defined Network Engineer to design and deliver next-generation network solutions in Gloucester. This role requires proven experience with Cisco ACI and VMware NSX-T, alongside strong troubleshooting skills in networking. Responsibilities include managing SDN architectures and optimi ...

    Hybrid Backend Engineer (C# to Kotlin) Fintech

    A leading fintech company in Manchester is seeking a Software Engineer to design and implement robust backend services. You will write quality code in Kotlin, collaborate with diverse teams, and contribute to Agile projects. With a supportive culture, the company values learning and offers hybrid work options. C ...

    Associate Implementation Engineer – AI Driven SaaS

    Moody is seeking an Associate Implementation Engineer in Greater London. In this role, you will provide high-quality technical support and implementation guidance for enterprise software solutions, ensuring excellent customer experience. The ideal candidate will have proven experience in customer-facin ...

    Platform Engineer III – Core Infra & Deployments

    Fanatics is seeking a Level 3 Platform Engineer in Greater London to join their Platform Engineering team. The role focuses on cloud infrastructure, release pipelines, and deployment systems. Responsibilities include maintaining platform health, delivering projects, and mentoring junior engineers. Candidates sho ...

    Senior Rust Backend Engineer Scalable, Secure Systems

    A cutting-edge technology firm in Greater London is looking for a Senior Software Engineer (Backend) specializing in Rust. In this role, you'll develop secure and scalable backend systems for our platform, collaborate on product and engineering efforts, and contribute to open-source solutions. Ideal candidates w ...

    Senior Civil Design Engineer Water (BIM Enabled)

    ARCADIS is seeking a Senior Civil Engineer in Cambridge to lead and support wastewater and clean water projects. The role involves collaboration with clients and project stakeholders, ensuring the preparation of high-quality design documentation and drawings. The ideal candidate will have a degree in C ...

    Test Automation Engineer UI/API, Playwright & CI/CD

    Motorola Solutions in the City of Edinburgh is hiring a Test Automation Engineer. This role combines automation expertise with API and browser testing, requiring solid coding skills and a collaborative mindset. You will contribute to innovative solutions ensuring quality for public safety and enterprise secur ...

    Senior Real Time Streaming Platform Engineer

    ON.com is looking for a skilled Streaming Platform Engineer to join our Data Streaming Platform team in Greater London. This hybrid role combines platform, software, and data engineering responsibilities, focusing on building and maintaining a high-performance real-time data streaming platform. The suc ...

    Senior SRE: Architect Scalable, Reliable Cloud Infra

    Dormont Manufacturing Co is seeking a Senior Site Reliability Engineer (SRE) located in Greater London. You will be responsible for designing and implementing the infrastructure for our cutting-edge SaaS platform, tackling performance challenges, ensuring high availability, and monitoring system performanc ...

    Senior Platform Driven AI Engineer for Client Solutions

    Enablis in Leeds is seeking an AI Engineer to drive their AI capabilities by building production-grade solutions for clients and internal use. You'll work closely with the CTO and engineering leadership to enhance their internal AI platform, developing advanced AI tools and solutions. The ideal candida ...

    Senior Frontend Systems Engineer — UI Frameworks & TypeScript

    A leading technology recruitment firm seeks a Senior Frontend Systems Engineer to build and optimise innovative UI frameworks. This hybrid role in London involves solving complex data problems and contributing to software used in critical applications globally. Candidates should have experience with systems-leve ...

    Lead AI First .NET Engineer (C#/PostgreSQL)

    A prominent tech firm in the United Kingdom is seeking a Senior Software Engineer to lead the development of an AI-first .NET platform. In this role, you will be responsible for transforming AI workflows into resilient production code and designing systems for high-concurrency workloads. Candidates should posses ...

    Rust Backend Engineer Fintech Platform, PostgreSQL

    A leading fintech SaaS company is seeking a Software Engineer specializing in Rust to join their team in London. In this role, you will design and build high-performance backend services, leveraging your skills in Rust and PostgreSQL to contribute to critical financial infrastructure. The ideal candidate will ha ...

    Senior Architectural Engineer – Oil & Gas Process Plants

    NRL Recruitment is seeking a Senior Architect Engineer to focus on architectural engineering for oil & gas projects in the UK and overseas. The role entails delivering architectural designs, producing technical reports, and ensuring compliance with UK Building Regulations. The ideal candidate will have a degree ...

    Defence Applications Engineer

    Leidos in Huntingdon is looking for an Application Engineer to manage and maintain application baselines across multiple domains. This role involves providing technical support, integrating new technologies, and delivering software updates. Successful candidates will engage with clients and collaborate with v ...

    Runtime Enforcement Lead for Unity Catalog

    A leading data and AI company in Greater London is seeking a Senior Staff Software Engineer to lead the Unity Catalog Runtime Enforcement team. The role entails building and securing runtime enforcement for data access and authorization, mentoring team members, and ensuring high standards of operations. Candidat ...

    Lead Nuclear Structural Engineer – Bristol (On Site)

    A global engineering consultancy in the United Kingdom is seeking a Structural Engineer to join their Bristol team. The role focuses on supporting high-profile nuclear sector projects, such as Hinkley Point C and Sizewell C, with responsibilities including managing engineering teams and ensuring the integrity of ...

    Principal Platform Integration Architect

    Broadridge Financial Solutions is searching for a Principal Development Engineer in London. This role will involve contributing to the technical architecture and integration design of the enterprise platform. The successful candidate will be responsible for project scoping, technical architecture documentatio ...

    Lead Python Engineer – Asset & Wealth Data Platform

    A global financial services firm seeks a Lead Software Engineer in the Asset & Wealth Management sector to develop and implement data and analytics solutions. You will work on enhancing data platforms, automating processes, and collaborating with cross-functional teams to drive innovation. Ideal candidates have ...

    Senior Roads Engineer | Hybrid Work & Mentoring

    A leading engineering firm in the UK seeks a Senior Engineer to join their Roads team in Liverpool. This role focuses on developing innovative designs across various projects, ensuring compliance with legal and technical standards. The successful candidate will mentor junior staff and engage in budget management ...

    Production AI Security Engineer for Enterprise Systems

    A leading AI consultancy in Greater London is seeking a Forward Deployed Security Engineer to work with enterprise teams, ensuring AI systems operate securely and reliably in production. The role involves identifying vulnerabilities, designing secure architectures, and hardening systems in complex environments. ...

    Inertial Sensor Fusion Engineer — Hands on, Hardware Driven

    A technology firm in Bristol is seeking an Inertial Sensor Fusion Engineer to bridge inertial hardware and navigation software. This role requires hands-on work with inertial sensors, real motion, and data, focusing on improving hardware through mathematics and testing. Ideal candidates will have experience in s ...

    Data Platform Engineer for In‑House Trading (Hybrid)

    Field Energy in London is seeking a Software Engineer specializing in data to build and enhance the data platform powering their automated energy trading system, GAIA. This permanent, full-time position offers a competitive salary ranging from £64,000 to £78,000. Responsibilities include improving data ...

    Systems Modelling Engineer

    Varied and challenging projects in the defence and security industries Cambridge; to c£80,000 DoE + Benefits This fast-growing defence and security technology company is seeking a Systems Modelling Engineer to provide expertise in analysing complex systems and multi-system interacti ...

    Senior Systems Engineer – Biotech Platforms (Cambridge)

    Newton Colmore Consulting in Cambridge is seeking a Senior Systems Engineer to lead the development of next-generation medical diagnostic systems. The ideal candidate will have experience in systems engineering, product development, and work within biotech or medical devices. This role involves hands-o ...

    Senior Agentic AI Engineer Production LLMs

    American Express is looking for a Senior AI Engineer based in Greater London. In this role, you will shape and build LLM-powered product features that transform how customers manage their finances. With a strong emphasis on agentic systems, the position requires proven software engineering experience and a so ...

    Senior iOS Engineer Hybrid Fintech Impact & Growth

    Lloyds Banking Group seeks a Senior Software Engineer - Mobile (iOS) in London. This role involves designing, building, and shipping high-quality features for mobile applications while collaborating with cross-functional teams. The position allows for hybrid working arrangements and requires expertise in Swif ...

    Staff AI Engineer Build Real Time AI Features & Pipelines

    Gravity Engineering Services Pvt Ltd. is seeking a Staff AI Engineer who excels in software engineering, data, and AI. In this role, you will oversee the full lifecycle of AI applications, including building data pipelines and integrating models. Ideal candidates will have extensive experience in engin ...

    Senior Solar Electrical Engineer — Hybrid UK

    AECO is seeking a Principal Solar Electrical Engineer to design and deliver solar PV projects across the UK and internationally. The role involves using industry-standard software to create system designs and technical documentation. Ideal candidates will have a degree in Electrical Engineering, charte ...

    Senior Structural Analysis Engineer — F1 High Performance Structures

    Cadillac F1 Team in Silverstone is seeking a structural engineer to lead simulations and optimisations for high-performance designs. This position requires expertise in finite element methods and collaboration with design teams to influence design evolution. The ideal candidate will have a strong backg ...

    Senior Security Engineer: Build Automated Security Tooling

    Hopper is seeking a Senior Security Engineer to lead the tooling and processes that ensure application security throughout its lifecycle. In this role, you will develop systems that make security an automatic part of the developer workflow while leveraging AI to enhance efficiency. The ideal candidate ...

    Azure Platform Engineer: Build Scalable Cloud Foundations

    ClearRoute, an engineering consultancy in London, is looking for a Platform Engineer to own and evolve the Azure foundation that supports AI and Agentic workstreams. You will be responsible for designing and building shared Azure platform services, implementing Infrastructure-as-code using Terraform, and ensurin ...

    Junior Data Intelligence Engineer – Lakehouse & Automation

    Blumberg Capital Company is seeking a Junior Software Engineer in Edinburgh. You will work on cutting-edge data initiatives such as Financial Data Lakehouse and contribute innovative solutions. This role is perfect for those passionate about technology and finance. The ideal candidate holds a Bachelor' ...

    Senior Structural Engineer — Hybrid, Oxford, £45k £55k

    Aldwych Consulting Ltd in Oxford seeks a Senior Structural Engineer to manage and deliver complex structural design projects. The ideal candidate will have proficiency in structural analysis software, excellent communication skills, and a desire to attain chartership. Join a multidisciplinary property ...

    Principal Go Engineer Distributed Systems (Hybrid, Equity)

    Burns Sheehan is looking for a Principal Software Engineer in Greater London, offering a salary of £160,000-£200,000 plus a 15% bonus and equity. The role involves leading technical direction, shaping architecture, and mentoring teams in a well-funded deep-tech company focused on transforming life sciences throu ...

    Senior Electrical Engineer – High Voltage & Critical Systems

    Ramboll is seeking a Senior/Principal Electrical Engineer to join their Critical Systems Team in Southampton. This role involves providing electrical design expertise, particularly in high voltage systems, while mentoring junior staff and managing project work. The ideal candidate will have a track rec ...

    Data Scientist & AI Engineer — Research & ML Solutions

    A leading UK university is seeking an enthusiastic Data Scientist or AI Engineer for its Jean Golding Institute. The position involves supporting research projects, developing AI solutions, and enhancing the capacities in data science and AI. The ideal candidate should have expertise in engineering AI solutions, ...

    Lead Backend Engineer — Cloud, APIs & Scalable Services

    Capital One UK is looking for a Lead Software Development Engineer to join their backend team in London on a hybrid basis. The role involves leading projects, ensuring technical design, and collaborating with stakeholders to achieve business outcomes. You will leverage your experience in backend servic ...

    Senior Windows Desktop Architect & Lead Engineer

    Speechify is seeking a Senior Software Engineer for Windows/Desktop Applications in Bristol, United Kingdom. In this role, you will lead the design and development of native Windows applications, ensuring high performance and accessibility. You'll work collaboratively with designers and technical teams while mai ...

    DV Cleared Data Science Engineer | Cloud Data Platforms

    A leading recruitment firm is seeking a Data Science Engineer with DV Clearance to join a major public sector programme based in either London or Manchester. The role entails designing scalable data processing systems to support analytics and machine learning. Candidates should have a solid background in softwar ...

    Senior Civil Engineer Infrastructure & Transport

    A design consultancy in Greater London is seeking a Senior or Principal Civil Engineer to lead the design of infrastructure projects. This role involves working on transportation and development projects for numerous major clients, with tasks ranging from detailed design to project management. Candidates should ...

    🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

    Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

    To-Do Planner

    Organize your job search and personal tasks. All data is confidential.

    Open Planner →

    Wellbeing Center

    Access your confidential wellness report and resources to manage job search stress.

    Check Wellbeing →

    Skill Coach

    Plan your skill development with O*NET support to stay competitive in your field.

    Start Coaching →

    Outfit Helper

    Get AI-powered suggestions on what to wear for your next interview.

    Find Outfit →

    Income Tax Calculator

    Plan your finances with our calculator, updated for 2025 tax regulations.

    Calculate Tax →

    Salary Benchmark

    Get accurate, AI-supported salary trends to know your worth and negotiate better.

    Check Salaries →

    Interview Practice

    Practice for any interview with AI-enabled Q&A sessions. All data is private.

    Start Practicing →

    Interview Predictor

    Use our AI-supported tool to predict potential interview questions based on your resume.

    Predict Questions →

    Interview Practice Timer

    Use our mock interview trainer to perfect your answers under timed conditions.

    Start Timer →

    Behavioral Mastery

    Ace tricky behavioral interviews with our AI-powered practice module.

    Master Answers →

    Question Journal

    Confidentially record interview questions you were asked for future reference.

    Open Journal →

    Interview Ace

    A comprehensive tool to help you master every aspect of your interviews.

    Become an Ace →

    Q&A Logs

    Confidentially track your answers to common questions and refine them over time.

    View Logs →

    Application Planner

    Schedule and organize your job applications in one confidential planner.

    Open Planner →

    Cover Letter Tool

    Create perfect, tailored cover letters for each application with AI support.

    Generate Letter →

    Resume Score

    Get instant feedback on your resume with our NLP-supported analysis tool.

    Check My Score →

    ATS Score

    Check your resume's compatibility with Applicant Tracking Systems (ATS).

    Check ATS Score →

    Application Analyzer

    Use AI to analyze job descriptions and optimize your application materials.

    Analyze Application →

    Career Visualizer

    Confidentially plan and visualize your long-term career path and goals.

    Visualize My Career →

    Offer Genius

    Get intelligent insights and strategies to confidently negotiate job offers.

    Negotiate Offers →

    JobFlow

    Track your entire job search progress from application to offer with this intelligent tool.

    Track My Flow →

    JobSense

    Our intelligent matching engine that provides smart job recommendations.

    Get Smart Matches →

    Networking Toolkit

    Tools to build and manage your professional connections. All data is confidential.

    Build Network →

    Professional CV

    A classic, O*NET supported template for corporate and professional roles.

    Use This Template →

    Executive CV

    A premium, O*NET supported template designed for senior and C-level positions.

    Use This Template →

    Modern CV

    A fresh, stylish, O*NET supported template perfect for tech and modern industries.

    Use This Template →

    Creative CV

    A visually distinct, O*NET supported template for design and artistic roles.

    Use This Template →

    Minimalist CV

    A clean, simple, O*NET supported template that focuses purely on content.

    Use This Template →

    Europass CV

    The standard European Union recommended format for wide compatibility.

    Use This Template →

    Student CV

    An institution-recommended template perfect for internships and first jobs.

    Use This Template →

    Graduate CV

    An institution-recommended template for recent graduates entering the workforce.

    Use This Template →

    Academic CV

    The researcher-recommended format for roles in academia and research.

    Use This Template →

    Developer/IT CV

    A tech-savvy recommended template to highlight your technical skills.

    Use This Template →

    Skilled Worker CV

    A trades-recommended template to showcase hands-on skills and experience.

    Use This Template →

    Monochrome CV

    A sleek, black-and-white, O*NET supported template for a professional look.

    Use This Template →

    Art CV

    An artist-recommended template that allows your creativity to shine.

    Use This Template →

    Harvard CV

    A researcher-recommended template based on the classic Harvard format.

    Use This Template →

    Volunteer Research

    Help us improve our platform by joining our community research program.

    Join Research →

    Review Us

    Share your experience with our tools to help other job seekers.

    Share Experience →

    Register

    Create your free account to save jobs, build your profile, and track applications.

    Create Account →

    Login

    Access your dashboard, manage applications, and continue your job search.

    Access Your Account →

    Profile Builder

    Create a comprehensive professional profile that attracts recruiters and showcases your skills.

    Build Your Profile →

    View Profile

    See your public profile exactly as employers will see it. Make sure it's perfect.

    Preview Profile →

    Bookmarked Jobs

    Keep track of all your saved job opportunities in one organized place.

    View Saved Jobs →

    Your Reviews

    View and manage all the company reviews you've submitted.

    See Your Reviews →

    Following

    Manage the list of companies you follow to stay updated on their new openings.

    Manage Following →

    Find Companies

    Discover and research top employers in your country and industry.

    Discover Employers →

    Standalone CV Builder

    Use our O*NET supported CV builder to create a professional resume from scratch.

    Build Your CV →

    PDF to DOC (Beta)

    Convert your PDF resumes or documents into editable Word (DOC) format.

    Convert PDF →

    DOC to PDF (Beta)

    Create universally compatible PDF documents from your Word (DOC) files.

    Create PDF →

    General FAQ

    Find answers to common questions about our job site and platform.

    Read FAQ →

    Job Seekers FAQ

    Get help and find answers to questions specifically for job seekers.

    Get Help →

    Job Matching

    Learn about the technology and algorithms behind how we match you to jobs.

    Learn How →

    Personalized Matching

    Discover how we use your profile and activity to provide customized job suggestions.

    Learn More →

    Quick Apply

    Understand our fast application process and how to make the most of it.

    Learn More →

    Alert Frequency

    Learn how to manage your job alert settings so you get the updates you want.

    Manage Settings →

    Job Alerts Guide

    A complete guide to understanding how job alerts work and how to use them effectively.

    Read Guide →

    Resume Matching

    Learn how our system matches your resume to job requirements.

    Learn More →

    Ethical Branding

    Read our guide to building a professional and ethical personal brand.

    Read Guide →

    Candidate Visibility

    Learn how to increase your visibility to recruiters on our platform.

    Increase Visibility →

    Verified Badge

    Find out how you can get a verified badge to build trust with employers.

    Get Verified →

    AI ATS Technology

    Learn about the advanced AI and ATS technology that powers our platform.

    Learn More →

    ATS Ranking

    Understand how Applicant Tracking Systems rank you as an applicant.

    Learn More →

    Semantic Matching

    Learn how our AI-powered semantic matching goes beyond keywords.

    Learn More →

    💡 Tools that really enhance your application chances and career growth.

    Go to Your Dashboard →

      Buffering Video...

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