1,026 to 1,048 of 1,048 JavaScript Jobs in the UK

Owning Shopify Plus development across all three brands end-to-end Building and optimising conversion-focused, high-performance storefronts Developing custom functionality using Liquid, JavaScript, HTML and CSS/SCSS Improving site speed, Core Web Vitals and technical SEO Delivering new features, landing pages and campaign builds at pace Managing … Strong hands-on Shopify Plus experience - this is non-negotiable and candidates without it will not be considered Solid front-end skills across Liquid, JavaScript, HTML and CSS/SCSS Experience with Shopify APIs, custom functionality and third-party integrations Commercial awareness and an understanding of how development decisions affect ...

wide range of devices and platforms. Day to day you’ll use test automation frameworks (including our AI-assisted tools), scripting (e.g. Python and JavaScript), CI/CD tooling and our internal observability tools to design and execute automated test suites, manage device infrastructure, and provide fast, reliable feedback … applications (e.g. Appium, Espresso, XCUITest, Selenium, Playwright, etc.). · Strong skills in at least one programming or scripting language used for automation (e.g. Python, JavaScript, TypeScript). · Experience integrating automated tests into CI/CD pipelines, or using orchestration platforms such as Apache Airflow · Practical experience working with real ...

wide range of devices and platforms. Day to day you’ll use test automation frameworks (including our AI-assisted tools), scripting (e.g. Python and JavaScript), CI/CD tooling and our internal observability tools to design and execute automated test suites, manage device infrastructure, and provide fast, reliable feedback … applications (e.g. Appium, Espresso, XCUITest, Selenium, Playwright, etc.). · Strong skills in at least one programming or scripting language used for automation (e.g. Python, JavaScript, TypeScript). · Experience integrating automated tests into CI/CD pipelines, or using orchestration platforms such as Apache Airflow · Practical experience working with real ...

Company description Stats Perform is the market leader in sports tech. We provide the most trusted sports data to some of the world's biggest organizations, across sports, media, and broadcasting. Through the latest AI ...

Frontend React Developer SC cleared Active SC Cleared required Inside of IR35 Role Overview We are seeking a Senior Front-End Developer to lead the delivery of accessible user-centric interfaces for a secure law ...

maintain features for a stock management application Build responsive and performant user interfaces using React and Next.js Develop and integrate backend services using JavaScript Design, query, and optimise data models in PostgreSQL Collaborate with stakeholders to translate business requirements into technical solutions Participate in code reviews and ensure best practices … followed Troubleshoot, debug, and resolve application issues Contribute to documentation and knowledge sharing as required Required Skills & Experience Strong commercial experience with JavaScript Proven experience developing applications using React Hands-on experience with Next.js Solid experience working with PostgreSQL (schema design, queries, optimisation) Experience developing and supporting production applications Ability ...

tested code Collaborating with product, design, and engineering teams Debugging and resolving issues across the platform Tech Stack Backend: PHP, Laravel Frontend: React Native, JavaScript, jQuery Database: MySQL Local Development: MAMP Cloud: AWS (Lambda, API Gateway) Architecture: API-led, highly integrated systems What We're Looking For Commercial experience … Software Developer (ideally 2+ years) Strong experience with PHP and Laravel Experience with JavaScript, including jQuery Experience working with MySQL or similar relational databases Familiarity with local development environments such as MAMP Experience building or consuming APIs An interest in or exposure to AWS/cloud technologies A proactive mindset ...

code approaches, automating key business processes and customising the system to suit business needs. Responsibilities - Design, customise, and extend D365 solutions using plugins, JavaScript, workflows, APIs, Power Platform components, and Azure services. Lead technical reviews, oversee solution deployment, and guide a team of developers through the full application lifecycle. Conduct … optimise CRM modules, Power Apps Portals, and integrated business processes. Experience - Proven hands‐on experience designing, customising, and extending Dynamics 365 CE using plugins, JavaScript, workflows, and integration APIs. Strong understanding of D365 CE architecture, solution design, and the wider Power Platform (Model‐Driven Apps, Canvas Apps, Power Automate). ...

maintaining, troubleshooting, and improving critical web applications, ensuring high availability and performance for end users. For this role, the key essential skills are: JavaScript, SQL & Unix/Linux 6 Months + Inside IR35 Key Responsibilities Provide 1/2 line support for web-based applications Investigate and resolve incidents, bugs … defects Perform root cause analysis and implement preventative measures Maintain documentation for systems, processes, and fixes Required Skills & Experience Strong experience with JavaScript in a production environment Basic knowledge of SQL (query writing, performance tuning, troubleshooting) Hands-on experience with Unix/Linux systems (shell scripting, log analysis, system commands ...

system usability Maintain data integrity and support reporting needs Development & Enhancements Deliver change requests including custom development and enhancements Work with technologies such as JavaScript, SQL, APIs, and integrations Build and maintain integrations with other enterprise systems (HR, ERP, etc.) Governance & Ownership Introduce IT governance, best practices, and documentation … Intelex platform (Admin, Config, or Development) Strong understanding of EHS/Health & Safety systems Experience in system configuration, workflows, and user management Development exposure (JavaScript, SQL, APIs, or similar) Ability to manage support and development in parallel Strong problem-solving and stakeholder communication skills Nice to Have Experience implementing governance ...

development lifecycle, collaborating with both technical teams and wider stakeholders to deliver high-quality web solutions. Technology Stack WordPress (Gutenberg) Shopify (theme customisation) PHP & JavaScript Exposure to React or Laravel is beneficial Version control (e.g. Git) Key Responsibilities Build and maintain web solutions across new and existing projects Produce clean … stakeholders to understand requirements What They're Looking For 3+ years' experience in web development Strong experience with WordPress or Shopify Solid PHP and JavaScript skills Good communication and teamwork abilities Proactive attitude with a desire to develop Nice to Have Experience with React or Laravel Exposure to cloud/ ...

keep things stable as changes are made. What We're Looking For Solid experience working with PHP at a mid or senior level Strong JavaScript skills, including working with APIs Good knowledge of MariaDB/MySQL, including database structure and performance Experience with AWS (e.g. hosting, deployments, or working with … decisions Experience dealing with older or existing codebases What You'll Be Doing Building and maintaining applications using PHP Developing front-end features with JavaScript to keep workflows simple and intuitive Managing and improving databases (MariaDB/MySQL), making sure data is accurate and performs well Keeping systems secure, stable ...

keep things stable as changes are made. What We're Looking For Solid experience working with PHP at a mid or senior level Strong JavaScript skills, including working with APIs Good knowledge of MariaDB/MySQL, including database structure and performance Experience with AWS (e.g. hosting, deployments, or working with … decisions Experience dealing with older or existing codebases What You'll Be Doing Building and maintaining applications using PHP Developing front-end features with JavaScript to keep workflows simple and intuitive Managing and improving databases (MariaDB/MySQL), making sure data is accurate and performs well Keeping systems secure, stable ...

wide range of teams including Trading, Pricing, CRO, Analytics and IT What you’ll do Build and deploy website experiments using HTML, CSS and JavaScript Translate test plans into robust, production ready A/B tests Use Adobe Target (or similar tools such as Optimizely, AB Tasty or Dynamic Yield … ensure high quality delivery Collaborate closely with technical and non technical stakeholders What you’ll bring Proven front end engineering experience (HTML, CSS, JavaScript) Experience building experiments in Adobe Target or similar platforms Strong QA discipline and attention to detail Confidence communicating with stakeholders - this role is not “code only ...

following: Deliver full stack features using Ruby on Rails, from backend logic through to frontend delivery. Build and maintain frontend functionality using vanilla JavaScript, keeping solutions simple. Use agentic AI tools such as Claude or Codex as a core part of your development workflow. Act as the human … experience: Strong commercial experience building production grade applications in Ruby and Ruby on Rails. Full stack capability - frontend delivery without reliance on modern JavaScript frameworks. Confidence using AI assisted development tools as a primary way of working. Proven ability to own features end to end and take responsibility for code ...

following: Deliver full stack features using Ruby on Rails, from backend logic through to frontend delivery. Build and maintain frontend functionality using vanilla JavaScript, keeping solutions simple. Use agentic AI tools such as Claude or Codex as a core part of your development workflow. Act as the human … experience: Strong commercial experience building production grade applications in Ruby and Ruby on Rails. Full stack capability - frontend delivery without reliance on modern JavaScript frameworks. Confidence using AI assisted development tools as a primary way of working. Proven ability to own features end to end and take responsibility for code ...

following: Deliver full stack features using Ruby on Rails, from backend logic through to frontend delivery. Build and maintain frontend functionality using vanilla JavaScript, keeping solutions simple. Use agentic AI tools such as Claude or Codex as a core part of your development workflow. Act as the human … experience: Strong commercial experience building production grade applications in Ruby and Ruby on Rails. Full stack capability - frontend delivery without reliance on modern JavaScript frameworks. Confidence using AI assisted development tools as a primary way of working. Proven ability to own features end to end and take responsibility for code ...

Documentation & SharePoint Specialist - HealthTech - Cumbria (Key skills: Technical Documentation, HealthTech Systems, SharePoint Online, SharePoint 2016/2019, Knowledge Base Management, SQL, HTML, JavaScript, C#, ISO9001, ISO27001, Second-Line Support) Are you a detail-driven documentation specialist with strong SharePoint expertise and a passion for supporting systems that genuinely make … Experience with SharePoint Online and SharePoint 2016/2019 is essential. SQL knowledge and the ability to work with HTML, Razor/C# and JavaScript are highly advantageous. Exposure to understanding application code is beneficial but not essential. This is an excellent opportunity to contribute to healthcare technology that supports ...

lead generation and conversion Collaborating closely with designers to faithfully translate designs into production-ready code Implementing animations, interactions, and UI enhancements using modern JavaScript Optimising front-end performance, accessibility, and SEO best practices Supporting marketing teams with A/B tests, content updates, and marketing campaign launches Working within … Must have proven work experience in similar Front-End Web Experience role, preferably within a Marketing Agency/Retail environment Experience with HTML and JavaScript Proven experience building marketing-led websites, landing pages, or digital campaigns Solid understanding of responsive design, accessibility, and cross-browser compatibility Comfortable working ...

keep things stable as changes are made. What We're Looking For Solid experience working with PHP at a mid or senior level Strong JavaScript skills, including working with APIs Good knowledge of MariaDB/MySQL, including database structure and performance Experience with AWS (e.g. hosting, deployments, or working with … decisions Experience dealing with older or existing codebases What You'll Be Doing Building and maintaining applications using PHP Developing front-end features with JavaScript to keep workflows simple and intuitive Managing and improving databases (MariaDB/MySQL), making sure data is accurate and performs well Keeping systems secure, stable ...

with internal teams and external clients to understand their needs and design the technical "blueprint" for their success. Code & Build: Write solution code (primarily JavaScript/HTML) to create custom tools, prototypes, and integrations. Solve Problems: Act as the technical expert to troubleshoot complex issues, squash bugs, and provide feedback … Balance multiple stakeholders, lead technical discussions, and ensure project milestones are met with excellence. What We're Looking For Tech Stack: Strong proficiency in JavaScript and HTML . You should be comfortable with APIs, systems design, and technical troubleshooting. Consultative Mindset: You can explain complex technical concepts ...

HCLTech is a global technology company, home to more than 220,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services ...

ServiceNow Architect London (Hybrid) 6 Month Contract £600/day (Outside IR35) ServiceNow Architect needed with deep Telecoms domain experience including Telecommunications Service Management (TSM). 6 Month Contract based in London (Hybrid). Paying ...