Senior Full Stack Developer React Python Jobs in UK

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
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.

Reset

Create Job Alert

 
   
Reset

Quant Developer OTC Pricing

A high-growth institutional trading business in the digital assets market is expanding its London team and hiring a Quant Developer to join its OTC pricing function. This is a great opportunity to join a successful firm adding headcount as it continues to grow, and to work on highly visible quantitative systems ...

Lead Integration Engineer & Developer

A fast-growing Claims Management company based in Liverpool is requires a hands-on Lead Integration Engineer & Developer to take ownership of their growing integration platform connecting core internal systems with external partners and services. This is a high-impact role combining deep technical delivery with ...

Delphi Developer Office Based

Exciting opportunity for a full-time Delphi Developer in Wigan! Join this established company to showcase your strong programming skills, Delphi expertise, and software development knowledge. If you have a Bachelor's degree in Computer Science or similar and a passion for object-oriented programming, this role i ...

Product Developer Maternity Cover

Product Developer - Maternity Cover Location : Huddersfield, HD3 4EX Salary: Competitive, depending on experience Contract Type: Full-time, Fixed Term Contract Until October 2027 Benefits: 25 days holiday allowance excluding bank holidays, increasing by 1 day per year for every year you are with the company maxi ...

Lead Integration Engineer & Developer

A fast-growing Claims Management company based in Liverpool is requires a hands-on Lead Integration Engineer & Developer to take ownership of their growing integration platform connecting core internal systems with external partners and services. This is a high-impact role combining deep technical delivery with ...

Software Developer (Remote) (Nottingham)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

Software Developer (Remote) (Bristol)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

Software Developer (Remote) (Sheffield)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

Software Developer (Remote) (Leicester)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

Software Developer (Remote) (Liverpool)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

Software Developer (Remote) (Oxford)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

Software Developer (Remote/SQL)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Software Developer (Remote) (Cambridge)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

Software Developer (Remote) (Cardiff)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

Software Developer (Remote/SQL)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Software Developer (Remote/SQL)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to desig ...

Software Developer (Remote) (Birmingham)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

DV Cleared Network Developer

Job Title DV Cleared Network DeveloperLocation: BasingstokeDuration: 6 months with possible extensionRate: Up to £550 Per day via an approved umbrella companyMust be willing and eligible to go through the DV Clearance process Our Client, a leading organisation in t ...

Delphi Developer Office Based

Exciting opportunity for a full-time Delphi Developer in Wigan! Join this established company to showcase your strong programming skills, Delphi expertise, and software development knowledge. If you have a Bachelor's degree in Computer Science or similar and a passion for object-oriented programming, thi ...

Java Back End Developer

Role: Backend Developer (Core Java) We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system a ...

SCADA Developer Solution Architect

A fast-scaling, advanced manufacturing business delivering one of the UK’s most significant industrial projects in electrification and clean technology is seeking a SCADA Developer - Solution Architect to lead the design, development, and integration of SCADA and PLC systems. This role will ...

Java Backend Developer (Banking)

About the Role: We are hiring a Java Backend Developer to join a leading banking client in the UK. The role involves building and modernizing scalable backend systems, working on microservices architecture, and contributing to high-performance, secure financial applications. </li ...

Mid Level Games Developer

ABOUT US Sing King is on a mission to delight millions of singers around the world through our portfolio of games and singing experiences across multiple platforms. Our successful flagship YouTube channel welcomes over 14 million subscribers and 25 million ...

Front End JavaScript Developer

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + elig ...

Market Access Developer (C++)

We are partnering with a top-tier global quantitative trading firm operating at the forefront of technology, data, and financial markets. They are seeking a C++ Market Access Developer to join a world-class engineering team responsible for building and evolving ultra-low la ...

(197697) Back End Developer

Senior Backend Engineer Derbyshire. Hybrid, 3 days onsite. £85,000 to £90,000 This is a senior backend role with real scale and complexity, focused on building and evolving the services that underpin a large, high traffic ecommerce platform. The team is looking for engineers wh ...

JD Edwards EnterpriseOne Developer

JD - Edwards EnterpriseOne Developer Netstratum is a global product development company specializing in custom software and enterprise IT services. With teams across ten global locations, we combine local insight with global expertise to deliver innovative, purpose-driven s ...

K Rise EasyProcess Developer

JD - K-Rise EasyProcess Developer Netstratum is a global product development company specializing in custom software and enterprise IT services. With teams across ten global locations, we combine local insight with global expertise to deliver innovative, purpose-driven solu ...

Microsoft Dynamics Developer (365)

Role : MS Dynamics Developer (365)Location: LondonSalary: £70,000Days in the office: 1-2days a week My client is looking for a D365 Developer to join their team. This is a rare opportunity to join at the early stage of a ...

MS Dynamics 365 Developer

Technical Leadership Lead end-to-end technical design and architecture for Microsoft Dynamics 365 solutions (Power Platform). Define technical standards, best practices, and development guidelines. Own solution architecture including integrations, data models, security, ...

Software Developer (DV Sponsorship)

Software Developer (DV Sponsorship) £75,000 - £90,000 + Company Benefits + Progression + Hybrid + Company Bonus + DV Clearance Sponsorship Redhill - Hybrid Are you a Software Developer with a Telecommunications background looking to j ...

Lead Front End Developer

Lead Front End Developer| Leeds | Hybrid | £60,000 - £70,000 DOE We're working with a growing organisation looking to hire a Frontend Lead to take ownership of their web platform and digital experience. This is a hands-on leadership role where you'll guide ...

Mid Level Database Developer

Mid-Level Database DeveloperLocation: Central London (Hybrid 2-3 days in office) Salary: £45,000 - £50,000 OverviewWe're working with a specialist financial data organisation that processes large-scale, highly structured datasets fo ...

Oracle Developer (CX Sales)

Oracle Developer (CX Sales) Remote £65,000 - £70,000 + Remote + Training + Progression + Company Benefits Are you an experienced Oracle Developer looking to join one of the most progressive and ambitious Software House Companies in ...

Lead C++ Developer Fintech

Lead C++ Developer / Backend Software Engineer London / WFH to £120k+ Do you have expertise with C++ combined with team leadership and stakeholder management skills within a finance environment? You could be progressing your career in an impactful role at a global Fintech that ...

Quantitative Developer (Asset Management)

Full-time Permanent/Regular or Fixed Term Contract/Temporary: Permanent (UK and ROW) / Regular (US) L&G Business Unit: Legal & General Investment Management L&G sub Business Unit: LGIM Primary Location: London, One Coleman Street Job Family: Investments LGI ...

VP, Algo/SOR Developer

Who We Are Galaxy is a global leader in digital assets and data center infrastructure, delivering solutions that accelerate progress in finance and artificial intelligence. We believe that blockchain and digital asset innovation will transform how value moves through the world – and we’re buildin ...

Quantitative Developer (DV Equities)

About Us Founded 20 years ago and headquartered in Chicago, the DV Group of financial services firms has grown to more than 600 people operating throughout North America, Europe and Asia. Since spinning out of a large brokerage firm in 2016, DV Trading has rapidly scaled as an independent propriet ...

Software Developer (Backend SaaS)

Overview Join to apply for the Software Developer (Backend SaaS) role at Canonical . Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise ...

Software Developer (Backend SaaS)

What you’ll do Collaborate proactively with a distributed team Write high-quality code to create new features, fix bugs and modernize the Landscape codebase Demonstrate your strong commitment to code quality and automated testing Participate in the engineering ...

Contract .Net Developer Manchester

Overview Net Developer - 2 days per week onsite - Outside IR35 6 month contract to work as a contract .Net Developer, outside IR35, for a boutique smart technology company. The role will require 1 day per week on site, in Manchester. Responsibilities Note: The original text ...

Graduate Software Developer 2026

Locations: London, Cambridge, Manchester The role is a permanent developer role for graduates, or soon-to-be graduates, or those without a degree who are already proficient coders, looking to start in 2026. As a software engineer at Softwire, you’ll be part of a bright, inclusive, suppor ...

Helix Junior Quantitative Developer

iSAM is an innovative, financial technology firm specialising in quantitative trading, compromised of iSAM Funds and iSAM Securities. iSAM Securities regulated by the FCA, SFC, and CTFC, and CIMA registered, is a leading algorithmic trading firm and trusted electronic market maker, providing liquid ...

Quantitative Developer (DV Equities)

About Us : Founded 20 years ago and headquartered in Chicago, the DV Group of financial services firms has grown to more than 600 people operating throughout North America, Europe and Asia. Since spinning out of a large brokerage firm in 2016, DV Trading has rapidly scaled as an independent propriet ...

Site Manager – Residential Developer

A residential developer are currently seeking a Site Manager to assist the Project Manager on a 30 unit residential scheme located in Tottenham. This is an exciting ipportunity for a Site Manager to join a newly formed, growing developer with exiting plans for the future. The Site Manager must have res ...

Oracle HCM Technical Developer

A leading provider of innovative laser systems to help people in various global markets, including but not limited to renewables, microelectronics, research, life science, automotive, and medicine. We are seeking an experienced Sr. HRIS Analyst who will serve on the Oracle HCM Cloud HRIS team and ...

Lead Power BI Developer

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading ...

Software Developer (Remote) (Brighton)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

Software Developer (Remote/SQL)

About the Project Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to d ...

Software Developer (Remote) (Leeds)

About the Project Find out more about this role by reading the information below, then apply to be considered. Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? </b ...

🚀 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

    Senior Full Stack Developer React Python Jobs in United Kingdom Job Search Guide, Trends and Insights