Senior React Developer Reactjavascript 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

Assistant Quantity Surveyor

Assistant Quantity Surveyor / Quantity Surveyor - Residential & Regeneration Projects Swansea - £35,000 - £45,000 per annum plus full package (car allowance, pension, healthcare, bonus) About the Company Our client is a well-established residential developer and contractor delivering high-quality housing and reg ...

Software Engineering Manager

Role: Software Engineering Manager Location: Peterborough Hybrid - 2 days per week Salary: Competitive salary, plus bonus, car allowance, excellent pension, healthcare This is a new role within this multinational organisation that fully embraces and actively encourages the adoption the latest tech. We are looki ...

Assistant Quantity Surveyor

Assistant Quantity Surveyor / Quantity Surveyor - Residential & Regeneration Projects Swansea - £35,000 - £45,000 per annum plus full package (car allowance, pension, healthcare, bonus) About the Company Our client is a well-established residential developer and contractor delivering high-quality housing and reg ...

Head of Commercial

Job Location: London (Soho Works) About Cavari Cavari is a new premium bathroom and interiors brand, launching with a focused range of architectural baths and brassware. We are building Cavari deliberately prioritising: Design int ...

Senior Data Scientist (Alt Data & Research) | 12m FTC

A top‑tier global alternative investment manager is hiring a Senior Data Scientist to work closely with front‑office investment teams, applying alternative and traditional data to research and alpha generation across a multi‑asset platform, with a macro tilt. This role sits within a central Data & ...

Senior Software Engineer

Overview Complexio's Foundational AI works to automate business activities by ingesting whole company data – both structured and unstructured – and making sense of it. Using proprietary models and algorithms Complexio forms a deep understanding of how humans are interacting and using it. Automati ...

Engineering Manager

Engineering Manager - London, Hybrid (2 days/week) - £120,000 plus Benefits - High Growth Startup We’re partnering with a fast-growing healthtech company on a mission to transform primary care. Their platform supports hundreds of practices and millions of patients across Europe, helping team ...

Full Stack Engineer (Founding)

Overview Are you a Full-Stack Engineer who thrives on building things from scratch and wants to shape a new platform for agentic AI economics? Want to be engineer #3? About the Mission Build the go-to intelligence platform for tracking AI agent costs, margins, and ...

Senior Software Engineer

Overview NewDay is building an extraordinary engineering team enabled by modern technology. We empower our people to contribute to an inclusive culture, to thrive, and to grow as engineers. We serve close to 5 million customers across the UK with a purpose to help people move forward with credit. ...

Human Resources Business Partner

We’re partnering with a leading organisation to recruit a HR Business Partner We’re looking for a commercially minded HR Business Partner to support a regional leadership team in a fast-growing, multi-site environment. This is a successful organisation with excellent culture and values, off ...

Senior Frontend Engineer

TransPerfect is an established company with a start‑up culture seeking creative entrepreneurial people like you to join our team. We’re hiring a Senior Frontend Engineer to join our global team to be responsible for the quality, development, and execution of our software products. If you’re ready t ...

People Partner

People Partner Cheltenham | regional multi-site Salary up to £50,000 Permanent We’re partnering with a leading organisation to recruit a People Partner. We’re looking for a commercially minded People Partner to support a regional leade ...

Lead Software Engineer

About the Role You will play a key role in designing and delivering advanced software solutions for underwater robotic systems. This position focuses on developing innovative, high-quality software aligned with business and project requirements. As a Software Lead, you will take ownership of proj ...

Interim Senior Backend Software Engineer

Who you are You will be an established Senior Engineer with a diverse Backend focused skill set We would ideally like to see a strong focus with Golang as your primary language but if you have a polyglot approach to engineering across a range of backend languages and some exposure to ...

Principal Engineer

Title - Principal Engineer Location - London Salary - £78,969 - £98,711 About this role The Principal Engineer for Platform Integration & Architecture is accountable for improving how CDP’s services and systems integrate. You will document and make ...

Lead Software Engineer

Overview Lead Recruitment Consultant - DevOps & Cloud: G.Digital | G&T (girls and tech!) | 85% female placement Lead Full Stack Engineer (Frontend heavy) - £80,000 - Tech for Good - (Wigan Hybrid) G.Digital are back with one of our favourite partners, a AWS Powerhouse ...

Software Engineer

Overview Hamiltonian Dynamics is a start-up based in Gloucestershire, Manchester and London working in the Defence and Cyber Security industries. We are seeking an experienced Software Engineer to join our growing technology team in our next phase of expansion. Required Skills and Technolo ...

Software Engineer

Hamiltonian Dynamics is a start‑up based in Gloucestershire, Manchester and London working in the Defence and Cyber Security industries. We are seeking an experienced Software Engineer to join our growing technology team in our next phase of expansion. We are seeking someone who has experience in o ...

Systems Operations Engineer

Systems Operation Engineer Norwich - Hybrid £45,000 - £50,000 + Holidays + Career progression + Short working week + Employee Discount Benefits + Great working Culture + Hybrid Working Are you a technically strong Systems & Operations Engineer looking to take ownership of mission- ...

Social Media Executive

We are currently recruiting for a creative and trend-aware Social Media Executive to join a fast-paced, innovation-led beauty brand based in London. This hybrid position offers the opportunity to play a key role in delivering engaging social-first content and supporting brand growth across UK and internationa ...

Junior AI / Automation Engineer

Junior AI / Automation Engineer London Do you have the following skills, experience and drive to succeed in this role Find out below.We are working with a highly entrepreneurial investment group in London. They are looking for ...

Recruitment Consultant

Title: Recruitment Consultant Location: London About Us – The SJP has a proud track record of supporting the world’s most prestigious law firms, financial institutions and inhouse legal teams for over a decade. < ...

Senior Software Engineer (Back End)

Role Overview As a Senior Back-End Engineer, you will design, develop, and maintain robust server-side applications and APIs that support high-volume, data-intensive environments. You will play a key role in shaping technical architecture, ensuring system reliability, and driving best practices i ...

Java Full Stack Engineer with AI driven development exposure Vice President

Vice President - Java Full Stack Engineer with AI-driven development exposure Location: Manchester. We’re seeking a future team member for the role of Java Full Stack Engineer with AI-driven development exposure to join our Conventional Trust Platform team. Responsibilities ...

Mult Skilled Maintenance Engineer

Multi-Skilled Maintenance Engineer role working with an established maintenance team. The role of Multi-Skilled Maintenance Engineer offers £53K and excellent overall earning potential with regular overtime and a good shift pattern working 12 hour shifts with every other weekend off, very competitive holid ...

Software Lead

About the Role You will play a key role in designing and delivering advanced software solutions for underwater robotic systems. This position focuses on developing innovative, high-quality software aligned with business and project requirements. As a Software Lead, you will take ownership of proj ...

Senior DevOps Engineer Global IT • Dnipro • Kyiv • London • # DevOps # Kubernets # TerraForms #

Your Role As a Senior DevOps Engineer, you will play a critical role in designing, implementing, and managing robust infrastructure solutions for our multi-market microservices architecture. You’ll work across cloud environments, container orchestration platforms, and observability tools to ensur ...

Recruitment Consultant

Title: Recruitment Consultant Location: London About Us – The SJP has a proud track record of supporting the world’s most prestigious law firms, financial institutions and inhouse legal teams for over a decade. We can offer a suppo ...

Recruitment Consultant

Title: Recruitment Consultant Location: London About Us – The SJP has a proud track record of supporting the world’s most prestigious law firms, financial institutions and inhouse legal teams for over a decade. We can offer a suppo ...

Recruitment Consultant

Title: Recruitment Consultant Location: London About Us – The SJP has a proud track record of supporting the world’s most prestigious law firms, financial institutions and inhouse legal teams for over a decade. We can offer a suppo ...

Recruitment Consultant

Title: Recruitment Consultant Location: London About Us – The SJP has a proud track record of supporting the world’s most prestigious law firms, financial institutions and inhouse legal teams for over a decade. We can offer a suppo ...

Soft Services Manager

Soft Services Manager - Major Sporting Event Location: Glasgow Contract: Fixed Term (ASAP - August) Salary: Up to £38,000 + Length-of-Service Bonus Are you an experienced Soft Services Manager looking for a unique opportunity to be part of one of Glasgow's most high-profil ...

Software Engineer Fixed Income Technology

We are seeking a talented, hands‑on technologist to join our Fixed Income Technology team in London. This role will focus on building and enhancing intraday risk, trade, and portfolio management solutions used by portfolio managers, business management, and risk teams. The ideal candidate is a stro ...

People Partner

People Partner Cheltenham | regional multi-site Salary up to £50,000 Permanent We’re partnering with a leading organisation to recruit a People Partner. We’re looking for a commercially minded People Partner to support a regional leade ...

Software Engineer Fixed Income Technology.

Software Engineer - Fixed Income TechnologyWe are seeking a talented, hands-on technologist to join our Fixed Income Technology team in London. This role will focus on building and enhancing intraday risk, trade, and portfolio management solutions used by portfolio managers, business management, and risk team ...

Senior Platform Engineer to support Digital Services Platform for the development, deployment, and support of a new, cutting edge digital banking platform.

Our Financial Services Client is looking for a Senior Platform Engineer to support Digital Services Platform for the development, deployment, and support of a new, cutting-edge digital banking platform. You will own and evolve the technology platforms that power Online Account Opening (OAO) experiences ...

Social Media Executive

We are currently recruiting for a creative and trend-aware Social Media Executive to join a fast-paced, innovation-led beauty brand based in London. This hybrid position offers the opportunity to play a key role in delivering engaging social-first content and supporting brand growth across UK and internationa ...

Systems Operations Engineer

Systems Operation Engineer Norwich - Hybrid £45,000 - £50,000 + Holidays + Career progression + Short working week + Employee Discount Benefits + Great working Culture + Hybrid Working Are you a technically strong Systems & Operations Engineer looking to take ownership of mission- ...

Software Engineer Fixed Income Technology.

Software Engineer - Fixed Income TechnologyWe are seeking a talented, hands-on technologist to join our Fixed Income Technology team in London. This role will focus on building and enhancing intraday risk, trade, and portfolio management solutions used by portfolio managers, business management, and risk team ...

Senior Platform Engineer to support Digital Services Platform for the development, deployment, and support of a new, cutting edge digital banking platform.

Our Financial Services Client is looking for a Senior Platform Engineer to support Digital Services Platform for the development, deployment, and support of a new, cutting-edge digital banking platform. You will own and evolve the technology platforms that power Online Account Opening (OAO) experiences ...

Senior Full Stack Engineer

Overview Apexon is a digital-first technology services firm specializing in accelerating business transformation and delivering human-centric digital experiences. We help customers outperform their competition through speed and innovation. Apexon brings together core competencies in AI, analytics, ...

Quantum Consultant

A fantastic entry-level Quantum Consultant vacancy exists to assist a highly respected delay expert witness on an exciting variety of domestic and international disputes. This is a rare and exciting opportunity to get your foot into the world of construction disputes, working closely alongside a Who ...

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 Python Backend Engineer (Django)

A leading tech recruitment company in the UK is seeking a fully remote Python Developer. The role involves significant ownership of scalable backend applications. Ideal candidates will have over 4 years of development experience, strong skills in Python and Django, as well as familiarity with JavaScript, jQuery, ...

Remote Back End Engineer (C#.NET, Azure)

A specialized SaaS development company is seeking a Back End Developer for a full-time remote role. The position involves developing server-side logic, maintaining databases, and ensuring high performance. Responsibilities include collaborating with front-end developers, conducting code reviews, and implementing ...

Staff AI Software Engineer — Build Core Platform

A forward-thinking technology company in the UK seeks a product-minded engineer to help shape a developer-facing platform. You will build from early foundations, collaborating closely with founders and customers, while enjoying high autonomy and influence. Ideal candidates have a strong product engineering minds ...

Senior Platform Engineer AI Infra & Multi Tenant Orchestration (Remote)

A cutting-edge AI research lab seeks an individual to help build the next generation of AI infrastructure. You'll design and architect internal developer platforms and secure Kubernetes structures, managing high-performance NVIDIA H100 clusters. This role offers the chance to work in a remote-first environment a ...

Remote CSS/HTML Expert for Enterprise Web UI (Contract)

A leading UK Energy company is seeking a CSS Software Developer for a contract role. The ideal candidate must have expert skills in CSS and HTML, along with proven experience in enterprise web application development. This remote position offers the opportunity to work with product teams to enhance the company's ...

Oracle HCM Data Migration Specialist | SQL & OTBI

A leading technology consultancy in the United Kingdom is seeking an experienced HCM Migration Developer. In this role, you will manage the migration process to Oracle HCM, utilizing your strong SQL skills and HCM knowledge. Key responsibilities include data migration, report development, and collaboration with ...

Residential Quantity Surveyor Hybrid, Car Allowance, Growth

A leading UK housing developer seeks an experienced Quantity Surveyor for its North West region office. This role involves taking ownership of the commercial performance on major residential projects with opportunities for career development. The successful candidate will manage financial and contractual operati ...

🚀 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 React Developer Reactjavascript Jobs in United Kingdom Job Search Guide, Trends and Insights