• 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

    Technical Solution Architect Capgi in London Axiom Software Solutions Limited

    Technical Solution Architect – Capgi London, United Kingdom Posted 12 months ago Tech Stack JavaScript Angular React Java Python TypeScript AWS Your Role: Lead and manage so ...

    Senior Python & Data Engineer for Clean Energy Tools

    Peaple Talent is seeking a skilled Python Developer in the United Kingdom to contribute to a clean-energy transition. You will develop and maintain Python applications, build user interfaces and APIs, and design ETL pipelines. A minimum of 5 years in Python development and strong experience with AWS and API prin ...

    Remote Senior Python Engineer — FastAPI for RL Gym

    A leading AI research accelerator is seeking a Python Developer with strong FastAPI expertise to join a Reinforcement Learning project. The role involves designing scalable APIs, collaborating with engineers, and delivering backend services for experiments. Ideal candidates have over 5 years of Python experience ...

    Senior Python Engineer for MCP & AI Tooling (Remote)

    A leading tech company based in the United Kingdom is seeking experienced Python engineers for a project focused on developing Model Context Protocol (MCP) servers. Responsibilities include developing evaluation servers and implementing logic for agent actions. The ideal candidate will have over 4 years of Pytho ...

    Senior Backend Engineer – Casino UX on Python/AWS

    A next-generation sports betting platform is seeking a Senior Backend Engineer to develop and maintain backend systems. The ideal candidate has over 5 years of experience, strong Python skills, and knowledge of RESTful APIs and cloud platforms. This role offers the chance to shape technical direction while colla ...

    Senior Automotive Test Engineer CAN/UDS, HIL, Python

    A technology solutions provider is seeking an Automotive Testing Senior Engineer based in Pune, India. The ideal candidate will have a strong background in the automotive domain, knowledgeable in various protocols including CAN, UDS, and XCP. Proficiency in Python, Pytest, and CAPL scripting is essential. Experi ...

    Senior AI Python Engineer — Remote + UK/Europe Travel

    A leading AI and software solutions company in the UK is seeking a Senior AI Python Software Engineer. This role involves designing and building applications in Python, optimizing performance, and collaborating with various teams. The ideal candidate has at least 8 years of commercial experience, deep knowledge ...

    Remote First Senior Python Engineer HealthTech & AI APIs

    Inizio is looking for a Senior Python Engineer to design and deploy scalable applications within healthcare. This role, which is flexible with remote and hybrid options, entails collaborating with software engineers and data scientists. The candidate should possess strong Python expertise, familiarity with cloud ...

    Senior QA Automation Engineer – Python, Playwright & CI/CD

    A leading online gaming company in the United Kingdom is seeking a Senior QA Automation Engineer to design and maintain automated test scripts for web and mobile applications. Ideal candidates have extensive experience in frontend automation and API testing, along with excellent proficiency in Python. This role ...

    Remote Senior Python Engineer AI/Data in HealthTech

    A health and life sciences company is seeking a Fully Remote Senior Python Engineer to join their team. You will be responsible for developing a proprietary platform that utilizes data analytics and AI. The ideal candidate has advanced Python skills and extensive knowledge of cloud services, specifically Azure a ...

    Senior Backend Engineer Go/Python/Scala (6M Contract)

    A leading recruitment firm in the United Kingdom is seeking a Senior Talent Acquisition specialist for a 6 months contract. This mid-level backend position involves working with engineering teams, creating APIs, and managing projects. The ideal candidate will have over 3 years of software development experience ...

    Senior Python Engineer AI Testing Project (Freelance, Mindrift)

    Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent empl ...

    Senior Backend Python Engineer AI Platform, Vice President

    Are you looking for a career move that will put you at the heart of a global financial institution? We are seeking an exceptionally skilled Senior Python Software Engineer to architect and implement robust, scalable backend systems that power our advanced AI tools and services. This hands-on individual contribut ...

    Senior Python/Data Platform Engineer (Remote UK/Portugal)

    YLD is looking for a Senior Software Engineer to join their remote-first consultancy based in the UK and Portugal. You will work with a team to build scalable products, ensuring performance and reliability in analytics platform infrastructure. The ideal candidate has extensive experience with cloud platforms lik ...

    Remote Senior Python Engineer — FastAPI for RL Gym

    A leading AI research accelerator is seeking a Python Developer with strong FastAPI expertise to join a Reinforcement Learning project. The role involves designing scalable APIs, collaborating with engineers, and delivering backend services for experiments. Ideal candidates have over 5 years of Python experience ...

    Remote First Senior Python Engineer HealthTech & AI APIs

    Inizio is looking for a Senior Python Engineer to design and deploy scalable applications within healthcare. This role, which is flexible with remote and hybrid options, entails collaborating with software engineers and data scientists. The candidate should possess strong Python expertise, familiarity with cloud ...

    Senior Back End Python Engineer FULLY REMOTE WORLDWIDE

    Job Description This is a FULLY REMOTE-WORLDWIDE positionActivePrime is a Silicon Valley Tech companyAs a senior software engineer, you'll join a team tackling genuinely hard problems: distributed data processing at enterprise scale, complex deduplication algorithms, ...

    Senior Full Stack AI Engineer Fintech, London (4d/wk)

    La Fosse is recruiting a Senior Full-Stack Engineer for a new AI Innovation Team within a leading global fintech based in Central London. In this role, you will own full-stack features from frontends to backends, mentor engineers, and integrate diverse systems. Key requirements include 5+ years of engineering ex ...

    Senior Full Stack AI Engineer Fintech, London (4d/wk)

    La Fosse is recruiting a Senior Full-Stack Engineer for a new AI Innovation Team within a leading global fintech based in Central London. In this role, you will own full-stack features from frontends to backends, mentor engineers, and integrate diverse systems. Key requirements include 5+ years of engineering ex ...

    Senior Python Engineer Cloud Native AWS (Hybrid, Clearance)

    La Fosse Associates is hiring a Senior Python Engineer / Cloud-Native Software Developer in the UK to join a highly technical software engineering team. This role focuses on developing scalable applications, utilizing strong Python skills while working within AWS cloud environments. The ideal candidate will have ...

    Senior Python Engineer Remote, Stock Options & 30% Bonus

    A recruitment agency is seeking a Senior Python Developer for a FinTech client in the UK. You will design complex systems and write scalable code while collaborating closely with the CTO and Head of Engineering. The role requires over 6 years of experience in Python, expertise in SQL, and cloud experience, prefe ...

    Senior Quality Engineer — Python | Hybrid UK, SC Eligible

    A leading tech consultancy in the UK is seeking a Senior Quality Engineer skilled in Python and test automation. The position offers the opportunity to lead testing across various methodologies while collaborating in a dynamic and hybrid setting. Benefits include 26 days of annual leave, private health care, and ...

    Senior Python Backend Engineer for AI Driven APIs

    A growing tech startup is seeking a Senior Consultant to revolutionize backend systems using Python and cutting-edge technologies. You'll design and implement robust APIs, contributing to AI-assisted development while ensuring high technical standards. Ideal candidates possess expertise in Python, SQL, and have ...

    Senior Python Engineer – Cloud Native & AI Driven Platform

    A progressive startup is searching for a Python Software Engineer to join their dynamic team. In this role, you will lead the design and development of scalable cloud-native systems, primarily in Python. You will work on exciting greenfield projects with a focus on integrating large language models, making key a ...

    Full Stack Software Developer

    Job summary Join our Technology Team as a Full-Stack Software Developer, where you’ll design, build, and maintain secure, end-to-end solutions supporting critical business and clinical systems. You’ll work across the full stack—developing responsive web applications, robust back-end services, and ...

    Senior Manager Senior Software Engineer (AI Projects)

    About the Role You’ll be joining PwC’s Risk Line of Service, within our AI & Modelling team, working at the forefront of AI‑enabled transformation in the insurance sector. This role is for people who understand technology deeply enough to shape and execute a vision, not just talk about it. You wi ...

    Senior Manager Senior Software Engineer (AI Projects)

    About the role: You’ll be joining PwC’s Risk Line of Service, within our AI & Modelling team, working at the forefront of AI-enabled transformation in the insurance sector. This role is for people who understand technology deeply enough to shape and execute a vision, not just talk abou ...

    Senior Manager Senior Software Engineer (AI Projects)

    the role: You’ll be joining PwC’s Risk Line of Service, within our AI & Modelling team, working at the forefront of AI-enabled transformation in the insurance sector.This role is for people who understand technology deeply enough to shape and execute a vision, n ...

    Senior Manager Senior Software Engineer (AI Projects)

    Senior Manager - Senior Software Engineer (AI Projects) Employer Location London, United Kingdom Salary Competitive Closing date 31 May 2026 View more categoriesView less categories Sector Salary band Contract type Hours Where will they be working You need to or to save a job. Job D ...

    Senior Software Engineer, AI & Machine Learning, 9 Month FTC, Manchester, COR7567

    Senior Software Engineer, C++ and Python, 9 Month FTC, Manchester, COR7567 Are you a Senior Software Engineer with strong C++ and Python experience looking to work on cutting-edge AI and machine learning technology? The Role As a Senior Software Engineer, you’ll play a key role ...

    Senior Software Engineers (AI) TypeScript, React, Node London £90 120K+10% bonus

    3-days p/week onsite in London A London based FinTech that is the trusted partner to the world’s leading private banks and asset managers are looking for several Senior TypeScript Engineers with a passion for AI, to work on developing new AI features for their proprietary platform. ...

    Senior Software Engineers (AI) TypeScript, React, Node London £90 120K+10% bonus

    3-days p/week onsite in London A London based FinTech that is the trusted partner to the world’s leading private banks and asset managers are looking for several Senior TypeScript Engineers with a passion for AI, to work on developing new AI features for their proprietary platform. ...

    Backend Software Engineer Java Kotlin AWS in London client server

    Introduction In this role, you will have the autonomy to choose the right tool for the job and introduce emerging technologies. Technologies: API AWS Backend Java JavaScript Kotlin PostgreSQL Python ...

    Full Stack Engineer (AI Startup)

    Full Stack Engineer (AI & Cybersecurity Startup) - EU Remote Take the next step in your career now, scroll down to read the full role description and make your application.We're partnering with a well-funded AI startup (stealth for now) that’s building at the intersect ...

    Senior Full Stack Engineer — Hybrid (Edinburgh)

    Lloyds Bank plc is seeking a Senior Software Engineer (Full Stack) in Edinburgh. This role involves writing modular applications, ensuring software standards, and mentoring junior members. The ideal candidate will be proficient in Node JS, React, and Typescript. Competitive salary range is £72,702 - £109,053 wit ...

    Senior Frontend Engineer Build Global Sports Platforms

    A leading Sports Marketing firm is seeking a Senior Frontend Engineer in London to drive the development of scalable software for top sports brands. This role emphasizes technical leadership and collaboration on high-impact products. Candidates should have over 5 years of experience in software engineering, part ...

    Senior Software Engineer Remote (AI‑Driven SaaS)

    A technology company seeks a Senior Software Engineer to design, build, and optimize scalable software in a fully remote role. The ideal candidate will have expertise in Node.js, TypeScript, and React, along with hands-on experience in AWS serverless technologies. This position offers a salary of £70,000 to £80, ...

    Senior Platform Engineer: AWS Fusion (Global Infra)

    TP ICAP Group in Belfast is seeking a Senior Engineer to work on the Next Generation Fusion Platform in collaboration with AWS. This role involves owning the design, development, and deployment of software while mentoring junior team members. Candidates should have over 5 years of experience in software engineer ...

    Senior Front End Engineer Hybrid, Impactful Web Apps

    A leading digital solutions company is seeking a Senior Software Engineer to design and build high-quality software across various platforms. This hybrid role calls for strong expertise in React Native or Java/AWS, as well as a proven track record in working with complex systems. Candidates should be autonomous ...

    Senior Frontend Engineer Accessibility & AI Tools

    A leading AI video platform in London is seeking a Senior Software Engineer to drive accessibility initiatives. The role involves owning the accessibility roadmap, partnering with multiple teams, and integrating user testing feedback. The ideal candidate should have over 7 years of software engineering experienc ...

    Senior Platform Engineer: AWS Fusion (Global Infra)

    TP ICAP Group in Belfast is seeking a Senior Engineer to work on the Next Generation Fusion Platform in collaboration with AWS. This role involves owning the design, development, and deployment of software while mentoring junior team members. Candidates should have over 5 years of experience in software engineer ...

    Senior Full Stack Engineer — Hybrid (Edinburgh)

    Lloyds Bank plc is seeking a Senior Software Engineer (Full Stack) in Edinburgh. This role involves writing modular applications, ensuring software standards, and mentoring junior members. The ideal candidate will be proficient in Node JS, React, and Typescript. Competitive salary range is £72,702 - £109,053 wit ...

    Senior Frontend Engineer Build Global Sports Platforms

    A leading Sports Marketing firm is seeking a Senior Frontend Engineer in London to drive the development of scalable software for top sports brands. This role emphasizes technical leadership and collaboration on high-impact products. Candidates should have over 5 years of experience in software engineering, part ...

    Senior Software Engineer Remote (AI‑Driven SaaS)

    A technology company seeks a Senior Software Engineer to design, build, and optimize scalable software in a fully remote role. The ideal candidate will have expertise in Node.js, TypeScript, and React, along with hands-on experience in AWS serverless technologies. This position offers a salary of £70,000 to £80, ...

    Senior UI Engineer – Data Connectors & AI Enrichment (Remote)

    A leading AI Search company is seeking a Senior UI Software Engineer to build products that enhance data integration with AI. The ideal candidate will have 5+ years of software engineering experience and strong expertise in TypeScript and React. This role offers the flexibility to work remotely or in-office, foc ...

    Front End React Developer with UI/UX Focus

    Java Script Works is seeking an experienced Front-End Software Developer in Cambridge, UK, with very strong skills using React. The role requires several years in a commercial development environment and an eye for UI/UX design. In addition to React, knowledge of TypeScript, Node.js, Git, and Python is beneficia ...

    Embedded Software engineer Embedded Software engineer

    A Technology Manufacturer based in Andover, Hampshire is looking to recruit an Embedded Software Engineer to develop complex embedded control and sensing systems. This role offers the opportunity to collaborate in the development of complex systems including development and design, implementation and installatio ...

    Senior AI Software Engineer AI Consultancy

    Senior AI Software Engineer - AI, Python, TypeScript, Java, Cloud Oliver Bernard, are once again partnered with a leading Data & AI consultancy, with trusted partnerships with some of the worlds leading AI companies, who specialise in deploying production AI systems, into some of the ...

    Senior AI Software Engineer AI Consultancy

    Senior AI Software Engineer - AI, Python, TypeScript, Java, Cloud Oliver Bernard, are once again partnered with a leading Data & AI consultancy, with trusted partnerships with some of the worlds leading AI companies, who specialise in deploying production AI systems, into some of the ...

    Senior AI Software Engineer AI Consultancy

    Senior AI Software Engineer - AI, Python, TypeScript, Java, Cloud Oliver Bernard, are once again partnered with a leading Data & AI consultancy, with trusted partnerships with some of the worlds leading AI companies, who specialise in deploying production AI systems, into some of the ...

    🚀 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