• United Kingdom Jobs Expertini profile avatar

    • Senior Lead Fullstack Engineer React Java Python Aiml 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 Lead Fullstack Engineer React Java Python Aiml Jobs in United Kingdom

    5. Download PDF

    Reset

    Create Job Alert
      Add Alert

     
     
    Create Alert
     
    Reset

    Senior Software Engineer Billing Microservices (Hybrid)

    A fintech innovation leader in Belfast is seeking a Senior Software Engineer to join their Billing engineering team. This role involves designing, developing, and maintaining high-quality software solutions, focusing on microservices for billing operations. The ideal candidate has at least 5 years of software de ...

    Senior Automation Test Engineer: CI/CD & API Quality

    IBM is seeking a Senior Automation Test Engineer in Hursley, England. In this role, you will deliver reliable automated testing solutions, design test scripts, and collaborate with developers and DevOps teams. You will work with modern automation tools like Java, Python, and Selenium to enhance product quality. ...

    Senior Automation QA Engineer

    A tech corporation in Greater London is seeking a Senior Automation Test Engineer to deliver reliable automated testing solutions supporting public sector and defense clients. The role involves designing and developing test scripts and collaborating with developers to enhance product quality. Candidates should h ...

    Senior Software Engineer Finance Trading Platform (London)

    SoCode Recruitment is seeking a Contract Senior Software Engineer to join a private equity firm in London for up to 6 months. The successful candidate will develop and support P&L and accounting applications, manage data exchanges, and collaborate with financial teams. You'll need 8+ years of experience in Pytho ...

    Senior Cloud QA Engineer — Automation & Testing Lead

    Tatton Recruitment is seeking a Senior Software Engineer in Test for a temporary contract in Lydgate, UK, initially until March 2027. You will develop and test bespoke cloud-native applications, utilize tools like SonarQube, and implement automation strategies. The role requires strong programming skills in Java ...

    Senior Software Engineer, Ads Analytics & Data Pipelines

    Roku, Inc. is looking for a Senior Software Engineer in Manchester, UK, to develop scalable APIs and manage big data solutions. Candidates should have 8+ years in software or data engineering, with skills in Apache Spark, Airflow, and a strong foundation in Java, Python, or Scala. The role requires collaboration ...

    Senior Developer Success Engineer: Scale Cloud Native Apps

    Temporal Technologies is looking for a Senior Developer Success Engineer to support our developer community in deploying and scaling Temporal. You’ll tackle challenges in cloud-native environments using your expertise in distributed systems. The ideal candidate should have over 6 years of experience in programmi ...

    Senior Full Stack React Developer

    Senior Full-Stack React Developer - Contract Remote | UK-Based Consultancy | Human Behaviour Meets AI Are you looking to build software that truly makes a difference? Our client is on the lookout for a Senior Full-Stack React Developer to help shape the future of a uniqu ...

    Senior Frontend Developer with React

    Senior React Developer - Remote (UK-based) - Up to 70k - Fintech Morson Edge have teamed up with a fintech company on their search for a Senior React Developer to help evolve and enhance the frontend. You’ll be working on a complex, data-driven web application used to manage lending opera ...

    AI Driven Product Engineer for Legal Tech Platform

    A pioneering legal services firm in Greater London is seeking a Product Engineer to join their founding engineering team. This role focuses on building client-facing platforms that enhance the legal experience through automation and intuitive design. The ideal candidate will have over three years of experience i ...

    Remote Senior Front End Tech Lead – React & SaaS AI

    The Hub/Danske Bank is seeking a Remote Software Engineer to manage client applications built in React and Python. Candidates should have over 7 years of experience, including 3 years at a senior level, and relevant experience in building enterprise-grade SaaS products. The position offers a starting salary of € ...

    Senior Frontend Engineer Full Stack Energy Product

    MFK Recruitment is seeking a Senior Product Engineer, Full Stack in London, to build impactful customer-facing products in the energy sector. This hybrid role emphasizes strong skills in React and TypeScript, while also involving backend development with Python and data work with SQL. Ideal candidates will thriv ...

    Senior AI Platform Engineer – Full Stack

    Ebury is looking for a Senior Full-Stack Engineer to join their London office. This hybrid role involves building an AI-powered compliance platform. You'll work on complex features across React and Python stacks while mentoring other engineers. Ebury focuses on innovation in fintech, providing an environment whe ...

    Forward Deployed Data & AI Engineer Lead

    Accenture UK & Ireland is seeking a Senior Consulting Engineer - Forward Deployed Associate Manager to join the Palantir Business Group in London. In this role, you'll take ownership of client solutions, integrating advanced data workflows with AI while collaborating closely with clients to drive substantial imp ...

    Forward Deployed Data & AI Engineer Lead

    Accenture UK & Ireland is seeking a Senior Consulting Engineer - Forward Deployed Associate Manager to join the Palantir Business Group in London. In this role, you'll take ownership of client solutions, integrating advanced data workflows with AI while collaborating closely with clients to drive substantial imp ...

    Remote Senior Data Engineer AI Tooling Fully Remote up to GBP140k Nigel Frank

    Overview Senior Data Engineer - AI Tooling - Fully Remote - up to GBP140k Posted about 1 month ago This job is posted by Jooble. To read the full text, please click on the Apply Now link. Tooling Requirements Proficiency in Python and at least one othe ...

    Senior Full Stack Tech Lead (React/.NET on Azure)

    A technology staffing company is seeking a Tech Lead Full Stack in Edinburgh to lead a cross-functional team in migrating enterprise features from Angular to React and implementing a robust architecture using .NET Core on Azure. This mid-senior level role requires strong experience in leading full-stack teams an ...

    Lead II Software Engineering Senior React Native Developer Remote

    Job Title: Senior React Native Developer Location: Remote (Nottingham, UK) Experience: 5+ Years Employment Type: Fixed-term employment contract (12 months) We are looking for an experienced Senior React Native Developer to join our mobile development team. In this role, you ...

    Senior Frontend Tech Lead React/JS for Scalable Trading

    A major global financial institution is seeking a Software Engineer to join their F&O Execution Technology team in Greater London. You will play a crucial role in enhancing and delivering market-leading technology products. The ideal candidate will have over 8 years of experience in technology systems, with at l ...

    Senior Data Platform Engineer (Trading Systems)

    A leading Investment Manager in the UK is seeking an experienced Software Engineer for an initial 6-month role that could lead to permanent employment. The position involves working within a core engineering team to develop and enhance data and infrastructure platforms supporting systematic trading strategies. T ...

    Principal AI Governance Platform Architect

    J.P. MORGAN is looking for a Principal Software Engineer in Greater London to lead AI Governance Engineering efforts. The role involves designing and building governance platforms, developing reusable services, and ensuring compliance across AI/ML delivery lifecycles. Candidates should have strong software engin ...

    VP Lead Software Engineer, Margin Tech — Hybrid

    Citigroup Inc. is hiring a Lead Software Engineer to join their global technology team in London. You'll be working on complex problems with a focus on delivering robust software solutions. Candidates should have significant software development experience and proficiency in languages such as Java and Python. Th ...

    Senior Backend Engineer for Scalable Data & AI Systems

    A data-driven software company in Greater London is seeking a Backend Software Engineer to lead the architecture and development of scalable backend services. The role involves building robust APIs, collaborating with other engineers, and optimizing performance. Candidates should have 6+ years of experience in b ...

    Lead Quality Engineer Test Automation & CI/CD Expert

    Java Script Works is seeking a Lead Quality Engineer specializing in Test Automation based in Alderley Edge, United Kingdom. The role requires in-depth expertise in automation for web-based applications and strong programming skills in JavaScript, TypeScript, or Python. The successful candidate will jo ...

    Lead AI Engineer Production ML for Workday

    Kainos in Derry/Londonderry is looking for a Lead AI Engineer to join their team. In this role, you will bridge the gap between data science and software engineering, focusing on deploying AI and machine learning solutions that enhance Workday products. The ideal candidate has extensive experience in s ...

    Senior Systems Architect – FinCrime Data & Automation

    Deutsche Bank AG is seeking a Systems Architect/Engineer in London to lead software development within the Anti-Financial Crime Technology department. The role requires a proven track record in designing complex banking technology systems, proficiency in C++, Python, Java, and SQL, and experience with Big Data t ...

    AI Driven Full Stack Lead (Hybrid, Contract)

    Experis UK is seeking an experienced Full Stack Engineer in Sheffield to lead the design and delivery of an AI-enabled helpdesk platform. The role combines hands-on engineering with leadership responsibilities in an agile environment. Candidates should have proficiency in modern frameworks and programming langua ...

    VP Lead Software Engineer Margin Technology

    Citi is seeking a Lead Software Engineer to join their global technology team in Greater London. In this role, you'll work with passionate engineers to build robust technical solutions, shaping the future of financial technology with minimal manual interventions. Key skills include experience in Java, Python, an ...

    Principal ML Engineer: Build Global AI & Data Platforms

    Apple is seeking a Principal Machine Learning Engineer in Greater London to lead the design, fine-tuning, and deployment of large language models. The ideal candidate should have extensive experience in machine learning engineering with a proven track record of shipping ML-powered products. Responsibilities incl ...

    OTel First Cloud SRE: Scale Observability & Automation

    Trimble Inc. is seeking a Cloud Site Reliability Engineer to lead an 'OTel First' strategy and enhance the reliability of global platforms. This role involves managing an observability platform, implementing automation using Terraform, and optimizing performance. The ideal candidate will have hands-on experience ...

    Global Cloud SRE: Observability & Automation

    A global industrial technology leader is seeking a Cloud Site Reliability Engineer in Newcastle upon Tyne to lead an OTel-first strategy and manage an observability platform. This role involves optimizing platform performance using automation and Infrastructure as Code, collaborating with engineering teams, and ...

    Lead Principal Full Stack Engineer Cloud & Incident Leader

    A leading technology consultancy in Leeds is seeking an experienced Principal Full Stack Engineer to lead L2/L3 support teams and ensure high-quality service delivery. The ideal candidate should possess knowledge in Java, Python, Node.js, or C#, alongside hands-on cloud architecture experience with AWS or Azure. ...

    Lead AI & Markets Tech Engineer (Credit Pre Trade)

    JPMorgan Chase & Co. is looking for a Lead Software Engineer to work within Credit Technology. This role involves building AI-native systems and enhancing trading capabilities through various technical solutions. Candidates should have over 5 years of hands-on experience with programming languages like Python, J ...

    Data Product Manager AI

    Responsibility You define and execute a comprehensive data and AI product strategy synthesizing market trends user needs and stakeholder input into a cohesive vision and execution plan You translate strategy into a clear product roadmap prioritizing data and AI capabilities that deli ...

    Application Support Engineer Trading £55,000 £70,000 + Bonus

    Overview Team Leader - Infrastructure at Hunter Bond Client: Trading Firm Location: London Skills Skills: Windows, SQL, Python, C#, Java, Front Office Role My client are seeking an enthusiastic Application Support Engine ...

    Immunoinformatics Engineer in London Dalton

    Immunoinformatics Engineer London, UnitedKingdom Tech stack Python C Java Required Qualifications Advanced proficiency in Python or experience with other programming languages (e.g., Java , C/C++). Strong ...

    Full Stack Software Engineer — Hybrid (Manchester)

    A leading technology firm in Manchester seeks a Software Engineer to contribute to developing innovative solutions that enhance public safety. The role involves full stack development using modern technologies like React and Java, and requires strong software development fundamentals. Candidates should have expe ...

    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

    We are seeking a Senior Full Stack Engineer to become the technical backbone of Bonsai. The role owns the architecture and delivery of the platform end-to-end – from the React Native mobile app through to the Django API, data layer, and cloud infrastructure. Beyond building, the Senior Full Stack En ...

    Remote Lead UI/UX & Full Stack Engineer (React + .NET)

    A leading AI solutions provider in the UK is looking for an experienced Lead UI/UX Full Stack Developer to drive the development of scalable, user-friendly solutions. This role involves leading the design and deployment of robust applications using React and .NET, mentoring developers, and collaborating with cro ...

    Lead Full Stack Engineer — Node/React, AWS/Azure, Mentoring

    A technology company in the UK is seeking candidates experienced in software development using Node.js and React to help accelerate digital delivery. The role emphasizes championing software quality and mentoring Junior and Mid Developers. Candidates should thrive in a collaborative culture that values ideas and ...

    Lead Full Stack Engineer — Node/React, AWS/Azure, Mentoring

    A leading tech company in the UK seeks experienced software developers skilled in Node and React for dynamic projects. Join a collaborative environment that values your ideas and provides opportunities for career advancement. With a commitment to closing the digital skills gap, this position offers a blended wor ...

    Lead Software Engineer UI React/TypeScript Asset Management Trading

    Are you excited by the challenge of creating real-time user interfaces that power trading across global markets? As a React Developer, you'll have the opportunity to work with cutting‑edge web technologies and see your solutions make an immediate impact. You'll collaborate with experts in finance and techn ...

    Lead Software Engineer UI React/TypeScript Asset Management Trading

    Overview Are you excited by the challenge of creating real-time user interfaces that power trading across global markets? As a React Developer, you’ll have the opportunity to work with cutting-edge web technologies and see your solutions make an immediate impact. You’ll collaborate with experts in ...

    Lead Mobile Engineer (React Native) in London Coders Connect

    Lead Mobile Engineer (React Native) ...world-class experts anytime, anywhere. As they accelerate their product and expand their team, they are hiring a Lead Mobile Engineer (React Native) to take their mobile experience to the next level. Requirements Whether you are a high-agency pr ...

    Lead Software Engineer UI React/TypeScript Asset Management Trading

    Are you excited by the challenge of creating real-time user interfaces that power trading across global markets? As a React Developer, you'll have the opportunity to work with cutting-edge web technologies and see your solutions make an immediate impact. You'll collaborate with experts in finance and techn ...

    Senior Full Stack & AI Automation Engineer

    Senior Full Stack & AI Automation Engineer – LondonRate: £500 – £530 per dayDuration: 1 year contract3 days onsite per week in London office (Battersea)As a key member of the Automation Team, you’ll design and build next-generation automation ...

    Senior Full Stack & AI Automation Engineer

    Senior Full Stack & AI Automation Engineer – LondonRate: £500 – £530 per dayDuration: 1 year contract3 days onsite per week in London office (Battersea)As a key member of the Automation Team, you’ll design and build next-generation automation ...

    Java Developer

    Opportunity for talented Full Stack Software Engineer to join a collaborative engineering team. This role will focus on the design, architecture, and implementation of software components as well as the overall solution, utilizing concepts and best engineering practices of microservices architecture. As a Ful ...

    Application Developer

    Overview The Client Innovation Centre (CIC) is an innovative and exciting part of IBM. A fast-paced and dynamic business built to deliver high-value technical services to world renowned clients. All of our employees work in a consultancy environment on a variety of exciting projects across a range ...

    🚀 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 Lead Fullstack Engineer React Java Python Aiml Jobs in United Kingdom Job Search Guide, Trends and Insights