301 to 325 of 421 JavaScript Jobs in the City of London

Senior Full Stack Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1-2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to … Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud More ❯

Skills: Experience and desire to work in a TDD environment. This is crucial and candidates without this skill won't be successful at interview. Ruby on Rails. Knowledge of JavaScript, any VueJS experience would be hugely beneficial. Able to mentor juniors & engage in architectural and systems design. More ❯

Skills: Experience and desire to work in a TDD environment. This is crucial and candidates without this skill won't be successful at interview. Ruby on Rails. Knowledge of JavaScript, any VueJS experience would be hugely beneficial. Able to mentor juniors & engage in architectural and systems design. More ❯

systems Leading technical implementations and troubleshooting Ensuring secure, reliable data exchange What we’re looking for: Strong HL7 & DICOM protocol expertise Experience with integration engines (Mirth, HealthShare) Scripting skills (JavaScript, Python) Background in healthcare IT & data security If you thrive in a fast-paced, mission-driven environment and want to make a real impact in healthcare delivery — let’s talk. More ❯

systems Leading technical implementations and troubleshooting Ensuring secure, reliable data exchange What we’re looking for: Strong HL7 & DICOM protocol expertise Experience with integration engines (Mirth, HealthShare) Scripting skills (JavaScript, Python) Background in healthcare IT & data security If you thrive in a fast-paced, mission-driven environment and want to make a real impact in healthcare delivery — let’s talk. More ❯

Ensuring all solutions meet rigorous standards for data privacy, security, and compliance. improving solutions based on real-world usage and feedback. Build and deploy AI-powered workflows Python or JavaScript Knowledge of automation platforms Strong experience with LLMs If you think you meet the above requirements, please apply or email your CV to McGregor Boyall is acting as an Employment More ❯

. Ability to work independently and manage deliverables with minimal supervision. Excellent documentation, analytical, and communication skills. Beneficial Experience supporting web and mobile app consent flows. Basic understanding of JavaScript or mobile app development (iOS/Android). Exposure to privacy, compliance, or data governance environments. Privacy certification (CIPP, CIPT, or equivalent). Contract, outside IR35, London, Consumer Products Electronics More ❯

on-site enablement in international markets What We’re Looking For: 3+ years of experience in robotics, industrial automation, or AI solution engineering Hands-on prototyping skills (e.g., Python, JavaScript, or similar technical stack) Experience integrating hardware + software and working with real-world operational workflows Strong analytical mindset, able to design experiments, evaluate results, and iterate quickly Cross-functional More ❯

on-site enablement in international markets What We’re Looking For: 3+ years of experience in robotics, industrial automation, or AI solution engineering Hands-on prototyping skills (e.g., Python, JavaScript, or similar technical stack) Experience integrating hardware + software and working with real-world operational workflows Strong analytical mindset, able to design experiments, evaluate results, and iterate quickly Cross-functional More ❯

shaping practical, data- and AI-driven solutions, fast. You’ll have the autonomy to experiment with tools like Notion, Retool, Streamlit, n8n , and build lightweight MVPs yourself using Python, JavaScript, or low/no-code stacks . For complex builds, you’ll partner with engineers and data scientists, but the ideas, testing, prioritisation, and rollout? That’s you. Who will More ❯

Dynamics 365 CRM, including configuration, customization, and integration capabilities. Strong expertise in integration technologies, frameworks and methods, such as Logic Apps, HTTP, json, AJAX, Oauth2. Proficiency in .NET, C#, JavaScript, and other relevant programming languages. Strong experience of developing plugins for Dynamics Strong experience in using JavaScript and HTML to enhance Dynamics form customization and configuration Demonstrated experience in leading … 365. Bachelors degree in Computer Science, Information Technology, or a related field. Strong experience with Microsoft Dynamics 365 (Customer Engagement, Sales, Service, Marketing, etc.). Proficiency in C#, .NET, JavaScript, and TypeScript for Dynamics 365 custom development. Experience with Microsoft Power Platform (Power Apps, Power Automate, Power BI). Hands-on experience with Azure services (Azure Functions, Logic Apps, API More ❯

.NET Developer, .NET 9, C# - Global Record Label - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) We are pleased to announce that our client, one of the largest and most recognised brands within the music industry, is seeking .NET Developer to work out of … .NET Core/ASP.NET MVC, C# and Azure SQL. Our client can provide training into: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. My client offers flexible working hours, home working and amazing offices (onsite cinema, pool tables, bar, free canteen, gym). These positions are dope!!! Location: London More ❯

.NET Developer, .NET 9, C# - Computer Gaming Company - London (Tech stack: .NET Developer, .NET 9, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Having sold over 100 million games consoles and over 500 million games over the last decade, my client is undoubtedly the world's most recognised computer gaming brand. We … Core/ASP.NET MVC, C# and Azure SQL. Our client can provide with exposure to: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. This is a truly amazing opportunity to work for a forward thinking and progressive company, one that can provide you with an on-going training programme More ❯

.NET Developer (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is a global video technology company with a strong presence in 17 countries. Using cutting edge technologies they help their clients join the dots on Facebook, YouTube and the social web. Their mission … give you the opportunity to work on enterprise level software development projects and training into: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. You will follow the firm's rapid career progression programme. Previous top performers have achieved several promotions (and pay rises) within 12 months of joining. If More ❯

.NET Developer - Fastest-Growing Internet Co Ever - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is changing the way merchants and consumers connect with each other worldwide, and the change has barely started. In 2024, they were the fastest-growing internet company …/ASP.NET MVC, C# and Azure SQL. Our client can provide you with training into: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. These positions come with an extensive benefits package including bonuses, pension, private medical healthcare, a training budget and 25 days holiday. Location: London, UK/Remote More ❯

working, customer-focused D365 solutions. Actively participate in SCRUM ceremonies (daily stand-ups, retrospectives, backlog review, show-and-tell). Create low-level designs and develop custom plug-ins, JavaScript, Power Apps, Power Automate, and other customisations. Provide technical guidance and support to business users. Take ownership of assigned features, unit testing, and deployments to Test/Production environments. Maintain … with development experience. Minimum 3 years’ experience as a D365 Developer, with knowledge of Sales, Service, and Marketing modules. End-to-end development and delivery experience. Proficient in C#, JavaScript, and D365 customisations. Experience with Power Automate, Power Apps, and custom connectors. Familiarity with DevOps, GIT, Azure DevOps, CI/CD. Excellent communication and stakeholder management skills. Interpersonal & Professional Skills More ❯

.NET Developer - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) After 15 years' experience in the fashion industry, our client has a mission to change the way people find clothes they love by combining technology with the personal touch of seasoned style experts. Our … ASP.NET MVC, C# and Azure SQL. There are opportunities for training into technologies such as: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. Their benefits include the following: Bonus (10-15%). Share options. Private medial healthcare (family plan included). Company pension (15% company contribution). Home working More ❯

working, customer-focused D365 solutions. Actively participate in SCRUM ceremonies (daily stand-ups, retrospectives, backlog review, show-and-tell). Create low-level designs and develop custom plug-ins, JavaScript, Power Apps, Power Automate, and other customisations. Provide technical guidance and support to business users. Take ownership of assigned features, unit testing, and deployments to Test/Production environments. Maintain … with development experience. Minimum 3 years’ experience as a D365 Developer, with knowledge of Sales, Service, and Marketing modules. End-to-end development and delivery experience. Proficient in C#, JavaScript, and D365 customisations. Experience with Power Automate, Power Apps, and custom connectors. Familiarity with DevOps, GIT, Azure DevOps, CI/CD. Excellent communication and stakeholder management skills. Interpersonal & Professional Skills More ❯

.NET Developer, .NET 9, C#, Agile - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is a global innovator who builds software products and apps that are defining the way individuals and teams work today. They make it easy for users and to … you the opportunity to work on enterprise level software development projects and provide training into: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. The company is quick to recognize talent and keen to nurture and develop it, as such your career with the company will go as far as More ❯

control systems (e.g., Git), automated testing at various levels (unit, integration, system). Experience with test libraries like Pytest or Google Test. Exposure to front-end stacks—HTML, CSS, JavaScript, TypeScript, Node.js—is a plus. Experience with AI-assisted development tools is advantageous. Additional Skills That Would Be Beneficial: Experience using Behavior-Driven Development (BDD) tools such as Cucumber or … methodologies. Proficiency in data science or analytics. Familiarity with mobile automation frameworks on Android and iOS platforms. Hands-on experience with UI test automation using frameworks like Cypress and JavaScript/TypeScript. More ❯

control systems (e.g., Git), automated testing at various levels (unit, integration, system). Experience with test libraries like Pytest or Google Test. Exposure to front-end stacks—HTML, CSS, JavaScript, TypeScript, Node.js—is a plus. Experience with AI-assisted development tools is advantageous. Additional Skills That Would Be Beneficial: Experience using Behavior-Driven Development (BDD) tools such as Cucumber or … methodologies. Proficiency in data science or analytics. Familiarity with mobile automation frameworks on Android and iOS platforms. Hands-on experience with UI test automation using frameworks like Cypress and JavaScript/TypeScript. More ❯

prepare test cases, data and expected results Scope and design regression testing (manual & automated) Monitor and report testing of large systems Automation of Front-End testing using Playwright with JavaScript/Typescript. Experience in creating a QA test suite from scratch for a client portal. Experience in automating tests and report generation. Create and maintain strong working relationships, with internal … the full project lifecycle experience Experience in testing Finance Markets applications, including Cash Equities Experienced with Playwright or other testing tools such as Selenium Strong knowledge of HTML, CSS, JavaScript/Typescript, ideally with some Python, .NET and Java Some knowledge of React Strong analytical skills combined with a structured methodical and hands-on approach with passionate attention to detail More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they’re looking More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they’re looking More ❯

eCommerce technology solutions with Shopify and associated systems (OMS, IMS, WMS, credit card processing, tax engine, digital distribution etc.) § Strong proficiency in modern design patterns and development languages including JavaScript, Typescript, Python, HTML5, CSS3, HTML-CSS-Bootstrap and Ruby § Experienced in NodeJS, JavaScript (ES2019+), ESLint and coding standards, Typescript § Solid grounding with common design patterns and development best practices § Knowledge More ❯