51 to 75 of 126 JavaScript Jobs in Central London

to large-scale digital projects, including the upcoming rebuild of our main websites. Proficiency in HTML and a working knowledge of CSS are key for this role, and while JavaScript isn't essential, it would be a welcome bonus. You'll be joining a busy, supportive team where no two days are the same, and where your input will have More ❯

best practices, persuasion principles, and behavioural psychology. Data literacy: ability to analyse large datasets, run SQL queries, and work with dashboards. Nice to have: web development skills (HTML, CSS, JavaScript) to prototype and implement tests quickly. Attributes Analytical thinker with a bias for action. Comfortable operating at the intersection of product, marketing, and engineering. Strong communication and storytelling skills - able More ❯

Full Stack JavaScript Developer (Mid-Level) Salary: £65,000 - £70,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/2 x days per week - Travel to London Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are on … the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you’re passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end components of web and mobile applications … using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Participating in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Conducting thorough code reviews to ensure code quality, performance, and adherence to More ❯

Full Stack JavaScript Developer (Mid-Level) Salary: £65,000 - £70,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/2 x days per week - Travel to London Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are on … the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you’re passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end components of web and mobile applications … using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Participating in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Conducting thorough code reviews to ensure code quality, performance, and adherence to More ❯

and sold to external customers. Reporting to the COO, this is a key role and as such has relatively complex requirements that balance current, hands on coding experience (C#, Javascript/Angular) with architecture responsibilities and oversight of devops/infrastructure. There is also line responsibility for an offshore development team, so the successful candidate will be able to demonstrate More ❯

and sold to external customers. Reporting to the COO, this is a key role and as such has relatively complex requirements that balance current, hands on coding experience (C#, Javascript/Angular) with architecture responsibilities and oversight of devops/infrastructure. There is also line responsibility for an offshore development team, so the successful candidate will be able to demonstrate More ❯

party integrations. Knowledge of ServiceNow Workflows: Designing and implementing Flow Designer and legacy Workflow Editor and Service Portal Development: Custom widgets, pages, and themes. You will be proficient in JavaScript: Core scripting language used in ServiceNow. Hands-on experience in ServiceNow development and administration and also experience in Agile/Scrum environments and using tools like Jira or Azure DevOps More ❯

to clients, and guide non-technical teams through your analysis. Having a background in marketing data or an agency environment is desired. What you'll need: GCP, SQL, Python, JavaScript Google Tag Manager (GTM) Mobile marketing platforms (MMP) Experience creating reports using BigQuery and Looker Studio Knowledge in analytics and tracking technologies (e.g. Meta, TikTok, Google Ads, etc.) What you More ❯

with the ServiceNow platform (Customer, Technology, and Employee Experience workflows). Strong understanding of customer journeys (marketing, sales, commerce) and employee lifecycles (onboarding, career development). Technical proficiency in JavaScript, HTML, CSS, Glide API, Flow Designer, IntegrationHub . Experience in system integration and workflow automation. Excellent communication and collaboration skills with an ability to bridge technical and business needs. Problem More ❯

working in Networks or IT network transformations Proven track record of delivering high quality code and leading development squads Key skills Netconf, API's, XML, JSON, Jinja 2, Python, JavaScript Cisco NSO, Ansible, Net Miko, Docker Workflow automation Itential IAP, Appian, Resolve Knowledge of telecom networks, technologies, and standards e.g TMF/Tosca/MEF YANG/TOSCA for service More ❯

working in Networks or IT network transformations Proven track record of delivering high quality code and leading development squads Key skills Netconf, API's, XML, JSON, Jinja 2, Python, JavaScript Cisco NSO, Ansible, Net Miko, Docker Workflow automation Itential IAP, Appian, Resolve Knowledge of telecom networks, technologies, and standards e.g TMF/Tosca/MEF YANG/TOSCA for service More ❯

and platforms What You'll Bring Essential Experience: University degree (2:1 minimum) in analytical field 5+ years in analytics/intelligence function Expert-level: Databricks, Python, SQL, Excel, JavaScript Advanced Excel skills including macro development Experience with Qlik or similar BI platforms Proven track record in cross-team project management Passion for technology and automation Highly Valued: Investment Management More ❯

and platforms What You'll Bring Essential Experience: University degree (2:1 minimum) in analytical field 5+ years in analytics/intelligence function Expert-level: Databricks, Python, SQL, Excel, JavaScript Advanced Excel skills including macro development Experience with Qlik or similar BI platforms Proven track record in cross-team project management Passion for technology and automation Highly Valued: Investment Management More ❯

.NET Developer, .NET 9, C#, Azure, JavaScript, Agile - London (Tech stack: .NET Developer, .NET 9, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer, Urgent)Be the first of your friends to declare, "I love where I work!" and actually mean it. Laugh hard and work hard … Developer candidates should have strong experience with: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client will provide you with industry recognised training into: .NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. Their benefits include the following: Bonus More ❯

party services supplying visas are eligible for this role. What you'll need to succeed You should have strong programming skills in a language such as R, python, Java, JavaScript or similar; as well as a track record in visualising data and developing UIs or other applications to support R&D scientists. Candidates with bioinformatics experience, or experience of software More ❯

Figma files that are handover-ready for engineering Develop high-fidelity prototypes to support user testing and stakeholder buy-in Apply technical awareness when designing for frameworks such as JavaScript, Tailwind CSS, and Bootstrap Present a portfolio that demonstrates functional, scalable, and visually compelling interfaces About You We’re looking for someone who combines creativity with technical know-how. You More ❯

Figma files that are handover-ready for engineering Develop high-fidelity prototypes to support user testing and stakeholder buy-in Apply technical awareness when designing for frameworks such as JavaScript, Tailwind CSS, and Bootstrap Present a portfolio that demonstrates functional, scalable, and visually compelling interfaces About You We’re looking for someone who combines creativity with technical know-how. You More ❯

removing blockers, and communicating effort effectively in an Agile setting. Essential Skills & Experience Strong experience in ServiceNow development and administration, ideally across ITSM, ITOM, or CSM modules. Proficiency in JavaScript, Glide Scripting, and ServiceNow's development tools. Experience delivering and maintaining integrations using REST and SOAP APIs. Sound knowledge of ITIL processes and ServiceNow SDLC. Demonstrated ability to lead teams More ❯

on in with the implementation of advanced technical SEO directly on client sites such as migrations, structured mark up, HTML/CSS changes, site speed and core web vitals, JavaScript SEO, log file analysis and more Be able to effectively audit a website, conduct keyword research/mapping, conduct analytics audits, set up tracking using UA/GA4/GTM More ❯

on in with the implementation of advanced technical SEO directly on client sites such as migrations, structured mark up, HTML/CSS changes, site speed and core web vitals, JavaScript SEO, log file analysis and more Be able to effectively audit a website, conduct keyword research/mapping, conduct analytics audits, set up tracking using UA/GA4/GTM More ❯

optimise marketing performance, and accelerate growth — and we’re looking for a Technical Web Analyst to join our team. What you’ll do Implement and configure digital analytics tracking (JavaScript/HTML) Work with analytics platforms (e.g. Adobe Analytics, GA4, Amplitude) Manage and troubleshoot Tag Management Systems (GTM, Adobe Launch, Tealium, Ensighten) Perform end-to-end testing, debugging, and QA More ❯

optimise marketing performance, and accelerate growth — and we’re looking for a Technical Web Analyst to join our team. What you’ll do Implement and configure digital analytics tracking (JavaScript/HTML) Work with analytics platforms (e.g. Adobe Analytics, GA4, Amplitude) Manage and troubleshoot Tag Management Systems (GTM, Adobe Launch, Tealium, Ensighten) Perform end-to-end testing, debugging, and QA More ❯

Performance Tuning & Optimization: Identify and address performance bottlenecks, ensuring the scalability and optimal performance of ServiceNow applications. Advanced Scripting & Development: Possess expert-level experience with ServiceNow scripting (Server-side JavaScript, GlideRecord, GlideSystem, UI Policies, Business Rules, Client Scripts, Script Includes) and the development of custom applications. Agile Leadership: Guide agile development teams from a technical perspective, ensuring that user stories More ❯

on in with the implementation of advanced technical SEO directly on client sites such as migrations, structured mark up, HTML/CSS changes, site speed and core web vitals, JavaScript SEO, log file analysis and more Be able to effectively audit a website, conduct keyword research/mapping, conduct analytics audits, set up tracking using UA/GA4/GTM More ❯

.NET Developer, .NET 9, C# - Break Into Banking - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Are you stuck in a catch 22 situation i.e. want to get into the financial services arena but your lack of experience within the industry is preventing you … the following (full training will be provided to fill any gaps in your skill set): .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and Azure SQL. No previous banking experience is required. This is a once in a lifetime opportunity to get involved in one of the most exciting Greenfield .NET More ❯