• United Kingdom Jobs Expertini profile avatar

    • Senior Software Engineer Fullstack Python React Jobs in UK

    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. Senior Software Engineer Fullstack Python React Jobs in United Kingdom

    5. Download PDF

    Reset

    Create Job Alert
      Add Alert

     
     
    Create Alert
     
    Reset

    Cloud Engineer in Training – Hybrid Glasgow, 2 Year Program

    A tech training and consulting company is seeking a Software Engineer for a hybrid role in Glasgow. This two-year fixed-term opportunity is designed for someone with 1-3 years of experience in software development and a willingness to learn in-demand technologies. Applicants should have knowledge in Java, J2EE, ...

    Global Solutions QA Engineer: AI Driven Testing & Travel

    A global security technology company located in the UK is seeking a Solutions QA Engineer. The role entails testing software solutions and collaborating with development teams to ensure quality standards. Candidates should possess a Bachelor's degree in Computer Science or Engineering and at least 5 years of exp ...

    Staff Embedded Engineer — BLE & ESL Systems

    A leading technology company in Cambridge, UK is seeking a Software Engineer to join their Electronic Shelf Label team. The role requires expertise in embedded systems and contributions to Bluetooth Low Energy innovations. The ideal candidate has at least 4 years of experience in software engineering, a degree i ...

    Senior Automation QA Engineer Remote & Flexible

    A leading technology solutions provider in Greater London is looking for a Software Engineer in Test. This exciting role involves both manual and automated testing to ensure delivery of high-quality software solutions. You will work collaboratively in an agile team, defining test strategies, and contributing to ...

    Hybrid UK Build System Engineer | Bazel & CI/CD

    A leading technology firm in the UK is seeking a Software Engineer for their Developer Experience team. This role involves enhancing the workflow of developers and shaping customer interactions with accelerator solutions. Candidates should have 5 years of experience in Software Engineering, proficiency in Bazel, ...

    Staff Engineer, AI Driven Biochemistry Platform

    A cutting-edge biotechnology startup in Greater London seeks a Software Engineer to lead the development of a biochemistry search platform. The role involves designing cloud infrastructure, building scalable database systems for ML, and enhancing internal tools for production. Ideal candidates will have over 5 y ...

    Backend Engineer for AI Startup — Ownership & Impact

    An innovative AI startup in Greater London is seeking a Software Engineer to join its high-caliber team. In this role, you will work on backend systems integrating with LLMs, having direct conversations with customers and shaping products that make a real impact. Ideal candidates should have strong experience in ...

    Lead Software Engineer, AI/ML & Cloud Tech Lead

    Kainos is seeking a Lead Software Engineer based in Budock Water, England. You will lead teams to develop innovative software solutions that significantly impact users worldwide. This role requires deep expertise in Python or C#/.NET, technical leadership, and experience in building AI products. Emphasizing a pe ...

    Data Infrastructure Engineer — AI Data Ingestion

    Speechify is hiring a Software Engineer in Manchester to enhance their AI team's data collection processes. The ideal candidate should have a BS/MS/PhD in Computer Science and over 5 years of software development experience, alongside proficiency in bash/Python, Docker, and cloud infrastructure management with G ...

    Lead Data Ingestion Engineer — Remote

    Muck Rack is seeking a Lead Software Engineer to join the Content Ingestion team in Cambridge, England. This role requires designing and evolving data pipelines that transform unstructured content into high-quality data. Candidates should have at least 8 years of software engineering experience, strong proficien ...

    Staff Platform Engineer: Billing & Microservices Architect

    A fintech solutions company is looking for a Staff Software Engineer in Belfast to design and optimize billing services for their platform. The ideal candidate will have over 8 years of software development experience, specifically in Java or Python, alongside expertise in cloud platforms and CI/CD practices. Th ...

    Lead Software Engineer, Margin Tech Global FinTech Hybrid

    Citibank (Switzerland) AG in Greater London seeks a Lead Software Engineer to shape the future of finance technology. The ideal candidate will work within a dynamic team, develop robust software solutions, and contribute to the automation of processes. You should possess hands-on experience in Java, Python, and ...

    Data Infrastructure & Ingestion Engineer for AI Datasets

    Clutch Canada is seeking a Software Engineer to join Speechify's Data team. The candidate will be involved in data collection, pipeline infrastructure on GCP, and collaboration with the AI team to improve data quality and efficiency. Ideal applicants should have a degree in Computer Science or a related field, w ...

    Senior Simulation Engineer — Realistic Driving Platform

    Icehouseventures is seeking a Software Engineer for Wayve’s Simulation Technology team in Greater London. You will be an expert in developing core components of a simulation platform that is essential for evaluating driving intelligence. Responsibilities include ensuring simulator realism and integrating mach ...

    Robotics Test Engineer End to End Release Validation

    Groupe-Ebra-1 in Greater London is seeking a Robotics Test Engineer to support software release validation and metrics collection on humanoid robots. The ideal candidate will have over 3 years of experience in software testing, proficiency in Python and understanding of ROS2. The role involves running tests on r ...

    Staff Engineer: AI Systems & MLOps Architect

    PC Partner Limited is looking for a Staff Engineer, Software (AI) who will be responsible for the architecture and development of advanced AI solutions. You will collaborate with cross-functional teams to implement and deliver AI technologies that align with product requirements. The ideal candidate sh ...

    Lead AI Software Engineer, Markets Tech & Credit Pre Trade

    J.P. MORGAN is looking for a Lead Software Engineer to enhance and deliver market-leading technology products. The ideal candidate should have over 5 years of experience in software design and development using Python, Java, or C++. They will work with AI systems to support eTrading capabilities and engage direc ...

    Lead GenAI Platform Architect — Production Ready AI

    Saragossa in Greater London is seeking a skilled Software Engineer to lead the AI platform for a prestigious hedge fund managing £70bn. This role involves full ownership of the AI systems with significant investment in technology. Candidates should have at least five years of experience in software engineering, ...

    Senior Backend Architect AI Driven ERP Automation

    BLP in Greater London is seeking a dedicated software engineer to help redefine ERP automation with agentic AI. You will design and develop high-quality software and collaborate with stakeholders to enhance the product. This role requires a Bachelor’s degree in Computer Science and 5+ years of experience. Workin ...

    Software Engineer – SC/DV Clearance, Hybrid

    Gemba Advantage is looking for a Software Engineer in London. This hybrid role offers £40,000 - £70,000 annually. As a part of an agile delivery team, you will work on high-impact systems for public sector organizations. The ideal candidate will have a solid foundation in software engineering principles with exp ...

    Full Stack Engineer — AI Drug Discovery Platform (Hybrid)

    Cubiq Recruitment is looking for a Full Stack Software Engineer to join their team in London, working in a hybrid model. The successful candidate will build AI-driven products that support scientific research, collaborating closely with engineers and scientists. Responsibilities include designing software across ...

    Staff Cloud AI Engineer: Generative AI Leader

    Google Inc. is seeking a Staff Software Engineer for their Cloud Generative AI Blackbelt team in London, UK. The role requires utilizing expertise in AI and machine learning to drive forward new opportunities and customer relationships. Candidates should possess a Bachelor's degree and 8+ years of software devel ...

    AI Powered Software Engineer: Build Agentic Workflows

    Flow Engineering is hiring a Software Engineer in the Greater London area to develop AI-powered capabilities that enhance the team's capacity to author and manage requirements. This role involves designing AI features, maintaining infrastructure, and integrating modern language models. Candidates should have at ...

    Data Ingestion & Infra Engineer for Scalable AI Pipelines

    Clutch Canada is seeking a skilled Software Engineer to join Speechify's AI team in Edinburgh. The role focuses on data collection to support model training and involves managing cloud infrastructure on GCP. Ideal candidates will have 5+ years of software development experience, strong proficiency in bash/Python ...

    Platform Engineer – Hybrid Cloud Infra for Energy Modeling

    Aurora Energy Research Limited in Oxford is looking for a Platform Software Engineer to develop cloud-based software for power grid modeling. The role involves designing high-availability infrastructure and requires expertise in Python and TypeScript. Join a dynamic team focused on innovation in energy ...

    Open Source Container & Virtualization Engineer

    A leading open source software provider in the United Kingdom seeks an exceptional software engineer focused on virtualisation and container technology. The ideal candidate should have experience in Go, Rust, C/C++, or Python, and possess strong analytical skills. This role offers the flexibility of remote work ...

    Senior Backend Engineer, Data Lakehouse & Onboarding

    A global data and AI platform is seeking an experienced backend software engineer to join their Platform Integrations team in Edinburgh. The role focuses on building robust client onboarding solutions, allowing clients to centralize and analyze their data effectively. Candidates should have extensive experience ...

    Security Engineer: Build Secure Apps & Threat Modeling

    Granola is looking for a Security Engineer to join the team in London. In this position, you will be responsible for identifying and mitigating security vulnerabilities in our applications, alongside building security tools and integrating security protocols throughout the software development lifecycle. Ideal c ...

    Senior Data Ingestion Engineer for AI Audio Pipelines

    Speechify is hiring a Software Engineer in Nottingham, UK, to drive data collection for AI model training. The ideal candidate will have a BS/MS/PhD in Computer Science, and over 5 years of software development experience, with skills in Python, Bash scripting, Docker, and GCP. The role involves collaborating on ...

    VR Teleoperation Engineer: Real Time Robot Control

    Humanoid in London is looking for a Software Control Teleoperation Engineer to build advanced VR-based teleoperation solutions for humanoid robots. You will engineer immersive control systems allowing fluid human-robot interaction through next-gen VR hardware. This role demands proficiency in C++, Python, and Un ...

    Lead Frontend Engineer Java & Open Source (Private & FS)

    Overview Lead Frontend Engineer - Java & Open Source (Private & FS) at Version 1. This role involves leading frontend development efforts, collaborating with product, architecture, and UX teams, and guiding best practices across the team. Responsibilities Experience leading te ...

    Lead Software Engineer Privileged Access Management

    Principal Software Engineer — Privileged Access Management (PAM) Help build the backbone of secure cloud infrastructure. Our globally-renowned client looking for a senior engineer who thrives in complex distributed systems, loves owning problems end-to-end ...

    Senior Software Engineer (C# / .NET) Global Bank £90 100k + bonus

    We’re working with a leading global bank to hire a Senior Software Engineer to join a high-performing technology team supporting mission-critical systems. This is a hands-on role for an experienced engineer who enjoys working close to the business, shaping technical design, and delivering robust, scala ...

    Back End Developer

    Overview ClimateTech Start-up | London Bridge | 4 days onsite. Tired of being just another engineer? Here’s your chance to be the third backend hire at a fast-growing ClimateTech start-up making a real dent in global carbon emissions. This role focuses on building a scalable backend and shaping th ...

    Lead Software Engineer at Strategic AI Transformation Firm

    Job Title Lead Software Engineer Salary Not Disclosed Company Description Strategic AI transformation firm partnering with global energy operators and GreenTech startups to accelerate the net-zero transition through production-grade machine learning solutions. ...

    Senior Full Stack Engineer

    Join a cutting-edge tech team shaping secure digital solutions for high-stakes environments. This Senior Software Engineer role is your chance to work on innovative projects that blend cloud, front-end, and back-end development in a collaborative, fast-paced setting. Role Overview L ...

    Senior Full Stack Engineer Remote, Global Impact & Growth

    A technology-driven company is seeking a Senior Full Stack Engineer to join their team. In this fully remote role, you will design and build features for their platform, optimize performance, and collaborate with a global engineering team. Ideal candidates have extensive experience with Node.js, React, and AWS. ...

    Senior Frontend Systems Engineer (TypeScript) | UI Frameworks

    Senior Frontend Systems Engineer (TypeScript) – UI Frameworks | London £150,000 – £200,000 + pension, private healthcare, gym membership, hardware budget London (Hybrid – 2 days WFH) Most frontend roles sit on top of frameworks. This one builds them. ...

    Mid/Senior Product Engineer (£90,000–£130,000 + Equity) at Versey

    Job Title: Mid/Senior Product Engineer Salary: £90,000–£130,000 + Equity Company Description: Versey - $3m pre-seed AI startup backed by 8VC and Sequoia scouts Job Description: Join a high-craft team building the Cursor for writing. You will develo ...

    Senior Full Stack Engineer | Trading Systems & Real Time UI

    Most full stack engineers have never had a trader lean over their shoulder and ask why a position update took half a second. If you have, this role is likely relevant to you. I am working on a confidential mandate for a London-based trading firm rebuilding its client-facing trading platform from th ...

    Mid/Senior Product Engineer (£90,000–£130,000 + Equity) at Versey

    Job Title:Mid/Senior Product EngineerSalary:£90,000–£130,000 + EquityCompany Description:Versey - $3m pre-seed AI startup backed by 8VC and Sequoia scoutsJob Description:Join a high-craft team building the Cursor for writing. You will develop a l ...

    Backend Software Developer

    We’re seeking a driven Backend Software Developer to join the Open Targets team at EMBL-EBI, contributing to the Open Psychiatry Project (OPP). In this role, you’ll build and evolve cutting‑edge informatics tools that support the discovery and prioritisation of drug targets. Working with modern technologie ...

    Sr. Software Development Engineer, Amazon Rufus

    Join us at Amazon as we reinvent shopping and search again! We're not just talking about improving the existing Amazon shopping experiences, we're building a brand-new world where shopping is effortless and intuitive through the power of generative AI. Leveraging state-of-the-art Large Language Models and genera ...

    Sr. Software Development Engineer, Amazon Rufus

    Join us at Amazon as we reinvent shopping and search again! We're not just talking about improving the existing Amazon shopping experiences, we're building a brand-new world where shopping is effortless and intuitive through the power of generative AI. Leveraging state-of-the-art Large Language Models and genera ...

    Junior Java Developer

    Full Stack Java Developer Salary: Up to £31,000 Our client is a well-established UK organisation operating within the services and retail support sector. They are currently investing heavily in digital transformation and expanding their internal technology team to deliver i ...

    Contract Senior Frontend Engineer Headless E commerce

    A pioneering skincare company in London is seeking a Senior Frontend Engineer for a 3-month contract with the possibility to extend. The role involves leading the front-end build/migration using React and TypeScript to enhance performance and collaborate with various teams for successful e-commerce integration. ...

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

    A technology company in the UK is seeking a Senior Full Stack Engineer to design and maintain high-performance applications. The role requires strong skills in TypeScript, Node.js, and React, focusing on scalability and performance enhancements. Responsibilities include building applications, engaging in code re ...

    Senior Frontend Engineer: Real Time Health Interfaces

    A health technology firm is seeking a Senior Frontend Engineer to build secure, intuitive user interfaces for their AI system. This role requires 10+ years of experience with React and Typescript, along with strong frontend architecture skills and experience in regulated environments. You will collaborate with v ...

    Senior Frontend Engineer RiskOS: Build Trustworthy UIs

    A tech company in Greater London is looking for a Senior Frontend Engineer to develop high-performance web applications. The ideal candidate will have 5-7 years of experience with TypeScript and React, and a passion for delivering exceptional user experiences. Responsibilities include collaborating with product ...

    Senior Full Stack Engineer – Trading Platform (Hybrid)

    NPAworld is seeking a Senior Full-Stack Engineer for their trading platform in Waterloo, London. The position involves building and maintaining high-performance features, requiring strong experience in TypeScript, Node.js, and React. The role is hybrid and emphasizes collaboration with clients and internal teams ...

    🚀 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 →

      Senior Software Engineer Fullstack Python React Jobs in United Kingdom Job Search Guide, Trends and Insights