Fullstack Javascript Developer 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

Java Developer

Introduction: We’reWorldFirst,aninternationalpaymentsbusinesshelpingmovemoneyaroundtheworld.WebecamepartofAntGroupin2019,acceleratingourmissiontocreatetheworld’sbestplatformforinternationaltradebycombiningWorldFirst’sproductswithAnt’ssolutionsaimedatenablingthedigitalizationofthemodernservicesind ...

Outsystems Developer

OutSystems Developer (Low-Code Orchestration) Location: London Contract: 12 months We are currently supporting a confidential search for an OutSystems Developer to join a major enterprise programme in Londo ...

iOS Developer

We’re working with a fast-growing start-up business looking for an IOS Developer to take full ownership of the mobile layer - from SDKs used by partners to the app used by clients in their field. You’ll work at the intersection of on-device machine learning, SDK development, and real ...

AI Developer

About Us Finalto is a global leader in liquidity provision and trading technology solutions, serving institutional and B2B clients across financial markets worldwide. With regulated entities in the UK, Singapore, Cyprus, Australia, and the UAE, and additional operational te ...

API Developer

Required qualifications, capabilities, and skills Formal training or certification on API Management Platform concepts and proficient advanced experience Hands-on practical experience delivering system design, application development, testing, and operational stability < ...

Software Developer

Your Responsibilities As a Junior Front Office Developer, you will be responsible for developing and enhancing Front Office pricing systems using C#, ensuring seamless integration with real-time market data and optimizing pricing models for traders. You will collaborate clo ...

C Developer

C++ Developer Location: Manchester (Onsite, 5 Days) Salary: Up to £55,000 + Package This is an opportunity to join a technically advanced environment where your work will directly contribute to sophisticated, real-world pla ...

Product Developer

Product Developer – Menswear / High Street Location Manchester – office based Salary to £35k + Bens It’ been a great start to 2025 for our growing Manchester based clothing manufacturing client and with this expansion comes ...

Salesforce Developer

We are seeking an experienced Salesforce Solution Architect with deep expertise across Sales Cloud, Service Cloud, Marketing Cloud, and Salesforce Data Cloud. The ideal candidate will have a strong background in integrating complex enterprise systems with Salesforce, designing scalable end‑to‑end solutions, a ...

Python Developer

About Us: We are one of the world’s leading commodities trading houses, leveraging sophisticated technology to trade a broad range of energy, metals, and agricultural commodities globally. Our success is driven by cutting-edge analytics, high-frequency data processing, and a commitment to innovation. W ...

Frontend Developer

About Ibex.ai Ibex is a fast-growing AI startup building an agentic, real-time decision engine that optimises customer interactions for measurable profit. Our platform blends advanced machine learning, deep learning, and reinforcement optimisation to decide the best action, ...

Salesforce Developer

They are looking for a Salesforce Developer experienced in both programmatic and declarative development, building Apex solutions and working on various integrations into Salesforce as well as building a range of Flow solutions. You will be focused on building out brand-new features like Agentforce as well ...

Python Developer

Backend Python Developer (Azure AI) Location: Remote / HybridType: Full-time Our client is a fast-growing consulting business building an AI-driven platform on native Microsoft Azure services. They are looking for a strong Backend Python Developer to join thei ...

Developer Golang

Client: Largest American Credit Card Company Location: Burgess Hill 3 days/week Years of Exp: 6-9 years Skills: Go, Java, Git, REST, Jenkins, NoSQL, Postgres/ql £40-£50/hr Inside IR35 Visa sponsorship is not available. We're looking for an enthus ...

Python Developer

numi have once again partnered with a leading player in alternative asset management is reshaping the treasury function. With cutting-edge technology and a seasoned team of industry experts, this company aims to reduce financing costs and optimize return metrics. Who We're ...

Quantitative Developer

This role sits within a global, technology-driven investment firm running systematic and quantitative strategies across financial markets. The firm builds its own trading, research, and data platforms in-house. As a Quant Developer, the role bridges quantitative research and engineering. You ...

Frontend Developer

Software Engineer – Front End Location: Lisburn (Remote-heavy, hybrid) Salary: Up to £65,000 Industry: IoT / Smart Buildings / Energy Tech About the Role Our client is buildi ...

CRM Developer

Who Are Massive Rocket? Massive Rocket is a rapidly scaling Braze and Snowflake agency on a mission to transform how digital marketing, product, and engineering teams connect. In just five years, we’ve grown at speed and are now gearing up for our next big milestone: hitting $100M in revenue. We b ...

.NET Developer

At Chai Services we believe in making the web a better place, and making our workplace a happy place. We hope you can join us on this journey! The .NET Developer will be instrumental in building and maintaining our .NET applications. You will work on both new features and existing systems, ensuring ...

Salesforce Developer

Salesforce Developer (Permanent) Remote - first | London hybrid | £55,000-£60,000 We're working with a mission-driven organization in the non-profit / housing space that is scaling a high-impact Salesforce platform used by org ...

Android Developer

UK Remote FTC 12 MONTHS We’re working with a growing digital team looking to bring in an Android Developer to support the development of a customer-facing mobile platform. This is a hands‑on role focused on building and improving modern Android applications within an Agile environment, ...

Java Developer

Java Developer Active SC clearance required Inside IR35 Location: Remote UK Role Overview We are seeking a skilled SC Cleared Java Developer to join our team. The ideal candidate will have a strong background in software development, specifically in Java and rela ...

Applications Developer

Applications Developer We are on the lookout for a versatile, forward‑thinking Applications Developer who excels in developing high‑performance web, mobile, and client‑server applications, and who takes a proactive approach to technology trends in the legal industry to meet evolving business need ...

KDB Developer

**Work Location** : Belfast, United Kingdom **Hours:** 35 **Line of Business:** Technology Solutions **Pay Details:** We’re committed to providing fair and equitable compensation to all our colleagues. As a candidate, we encourage ...

KDB Developer

**Work Location** : Belfast, United Kingdom **Hours:** 35 **Line of Business:** Technology Solutions **Pay Details:** We’re committed to providing fair and equitable compensation to all our colleagues. As a candidate, we encourage ...

KDB Developer

**Work Location** : Belfast, United Kingdom **Hours:** 35 **Line of Business:** Technology Solutions **Pay Details:** We’re committed to providing fair and equitable compensation to all our colleagues. As a candidate, we encourage ...

Developer Golang

Client: Largest American Credit Card Company Location: Burgess Hill 3 days/week Years of Exp: 6-9 years Skills: Go, Java, Git, REST, Jenkins, NoSQL, Postgres/ql £40-£50/hr Inside IR35 Visa sponsorship is not available. We're looking for an enthus ...

Python Developer

numi have once again partnered with a leading player in alternative asset management is reshaping the treasury function. With cutting-edge technology and a seasoned team of industry experts, this company aims to reduce financing costs and optimize return metrics. Who We're ...

Quantitative Developer

This role sits within a global, technology-driven investment firm running systematic and quantitative strategies across financial markets. The firm builds its own trading, research, and data platforms in-house. As a Quant Developer, the role bridges quantitative research and engineering. You ...

Frontend Developer

Software Engineer – Front End Location: Lisburn (Remote-heavy, hybrid) Salary: Up to £65,000 Industry: IoT / Smart Buildings / Energy Tech About the Role Our client is buildi ...

Python Developer

Senior Python Django Developer – Contract For a complete understanding of this opportunity, and what will be required to be a successful applicant, read on.Location: Full Remote (Occasional Travel) Daily Rate: Up ...

HFT Developer

The Company All potential applicants are encouraged to scroll through and read the complete job description before applying.A high-performance proprietary trading firm operating across global digital asset markets. The business has been profitable since inception and ru ...

Scala Developer

Scala Developer with solid functional programming understanding is sought on a remote basis by an international software house based in the UK.Have you got the right qualifications and skills for this job Find out below, and hit apply to be considered.This Scala Developer would be joining the innovati ...

KDB Developer

**Work Location** : Belfast, United Kingdom **Hours:** 35 **Line of Business:** Technology Solutions **Pay Details:** We’re committed to providing fair and equitable compensation to all our colleagues. As a candidate, we encourage ...

KDB Developer

**Work Location** : Belfast, United Kingdom **Hours:** 35 **Line of Business:** Technology Solutions **Pay Details:** We’re committed to providing fair and equitable compensation to all our colleagues. As a candidate, we encourage ...

Shopify Developer

Shopify Engineer | Fully Remote | Outside IR35 Learn more about the general tasks related to this opportunity below, as well as required skills.We’re partnering with a Platinum Shopify Partner who are continuing to scale their engineering team, and we ...

Frontend Developer

Software Engineer – Front End Location: Lisburn (Remote-heavy, hybrid) Salary: Up to £65,000 Industry: IoT / Smart Buildings / Energy Tech Apply fast, check the full description by scrolling below to find o ...

Dotnet Developer

Junior .Net Developer | Building the Future of Mobile Check below to see if you have what is needed for this opportunity, and if so, make an application asap.!! IMMEDIATE JOINERS !! Junior .Net Developer (Android) Location : < ...

iOS Developer

Job Title: Software Engineer - iOS Not sure what skills you will need for this opportunity Simply read the full description below to get a complete picture of candidate requirements.Contract Duration: 6-month contract, with possible extension L ...

Automation Developer

Job Description We are seeking a talented Automation Developer to leverage LGI’s automation technologies to design, develop, and deploy process automation solutions across the Retail function. The role focuses on delivering innovative solutions to business challenges by pragmatically automating m ...

Scala Developer

Scala Developer with solid functional programming understanding is sought on a remote basis by an international software house based in the UK. This Scala Developer would be joining the innovation arm of the business tasked with building complex, highly scalable greenfield solutions utilised worldwide to ...

Mobile Developer

About the Company Hackajob is a leading technology recruitment platform dedicated to connecting talented professionals with innovative companies across various industries. Our mission is to streamline the hiring process by leveraging cutting‑edge technology and data‑driven insights, ensuring that ...

Python Developer

Develop, test, and maintain high-performance backend applications using Python Design and build RESTful APIs using FastAPI Automate deployment, configuration, and infrastructure management using Ansible Collaborate with DevOps teams to implement and maintain CI/CD pipelines </l ...

PHP Developer

This growing tech business is investing heavily in its in-house systems and needs a Laravel developer who enjoys improving, refining, and shaping tools that people rely on every day. You’ll play a key role in keeping their core platform running smoothly while helping advance new features. ...

Software Developer

About Passionfruit Passionfruit is on a mission to reshape how marketing teams work - empowering them to move faster, work smarter, and grow revenue with cutting‑edge AI tools. We’re a hybrid, global team building products that help marketers unlock insights, reduce busy work, and enable ...

Backend Developer

Backend Developer (Node.js) We’re partnering with a growing scale-up FinTech that is transforming how financial transactions are handled. Following a major acquisition, they are evolving from a hardware provider into a fully integrated, end-to-end payments platform, offering both cutting-e ...

Frontend Developer

Senior / Lead Software Engineer (Frontend Mastery) | Synthesia Synthesia is the global leader in Generative AI video, powering the communication strategies of over 50,000 customers, including 50% of the Fortune 500. Since 2017, we have pioneered in-house AI technology that is now the industr ...

PHP Developer

Get AI-powered advice on this job and more exclusive features. This range is provided by Off to Work. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Off to Work PHP ...

WordPress Developer

Position Responsibilities: Interpret designs and code (HTML, JavaScript, CSS, PHP, Velocity), to create engaging, modern (UX) web experiences through the university’s content management system (CMS). Gather and refine specifications and requirements based on technical ...

Backend Developer

We're an early staged UK Fintech company, focused on solving data challenges across the wealth management industry. We're looking for an experienced data-focused backend developer to help supercharge our product, integrations and APIs. In return, we offer a chance to shape not just a product, but a ...

🚀 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

    Fullstack Javascript Developer Jobs in United Kingdom Job Search Guide, Trends and Insights