201 to 225 of 242 ECMAScript Jobs in London

Security Architect (DevSecOps)

Hiring Organisation
Pontoon
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£750 - £800 per day
Security Architect (DevSecOps) Retail Hybrid: 3 days onsite per week in London 6 months+ £750 - £800 per day In short: We require a strong, application-focused Security Architect with a keen background in development or ...

Senior JavaScript Engineer | DataGrid & Charting Libraries | London

Hiring Organisation
techstack Recruitment
Location
London Area, United Kingdom
Most engineers build applications. This team builds the components those applications rely on. I’m hiring for a developer tools company building widely adopted JavaScript components used in data-intensive applications across global enterprises, financial institutions, and technology companies. This is core engineering work, focused on performance, scalability, and building … Building features end-to-end — from design through to release Shaping the direction of widely adopted developer tooling What they’re looking for Strong JavaScript and TypeScript fundamentals (framework-agnostic mindset) Experience with a statically typed language (C++, C#, Java, Python, etc.) Deep understanding of algorithms, data structures, and software ...

Graduate / Junior Developer, Python, JavaScript, PHP - London

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £50,000 per annum
Graduate/Junior Developer, Python, JavaScript, PHP - London (Tech stack: Graduate/Junior Developer, Python, JavaScript, PHP, Graduate/Junior Developer) In 2012 our client launched a social messaging platform that has been taking the US by storm. After an extremely successful period our client has decided to hop across … suitable Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker and Agile; which might have been acquired as part of your degree course or through a placement year ...

Coding Trainee Placement Programme

Hiring Organisation
Coding Jobs at ITOL Recruit
Location
City of Westminster, Greater London, United Kingdom
Employment Type
Permanent
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Coding Trainee Placement Programme

Hiring Organisation
Coding Jobs at ITOL Recruit
Location
Waltham Forest, Greater London, Walthamstow, United Kingdom
Employment Type
Permanent
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Trainee Website Administrator

Hiring Organisation
ITOL Recruit
Location
Barking, Essex, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £37,000 per annum
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Coding Trainee Placement Programme

Hiring Organisation
Coding Jobs at ITOL Recruit
Location
Sutton, Greater London, United Kingdom
Employment Type
Permanent
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Trainee Website Administrator

Hiring Organisation
ITOL Recruit
Location
North West London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£27,000 - £35,000 per annum
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Trainee Website Administrator

Hiring Organisation
ITOL Recruit
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£28,000 - £35,000 per annum
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Coding Trainee Placement Programme

Hiring Organisation
Coding Jobs at ITOL Recruit
Location
Barking and Dagenham, Greater London, Barking, United Kingdom
Employment Type
Permanent
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Coding Trainee Placement Programme

Hiring Organisation
Coding Jobs at ITOL Recruit
Location
Merton, Devon, Merton Park, Greater London, United Kingdom
Employment Type
Permanent
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Trainee Coding & Programmer Placement Programme

Hiring Organisation
Coding Jobs at ITOL Recruit
Location
Camden, Greater London, Camden Town, United Kingdom
Employment Type
Permanent
many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Salesforce Engineer

Hiring Organisation
Stepstone UK
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
into technical tasks and be responsible for having discussion with business stakeholders and product Work with the following tech/tools/methodology; Java, JavaScript, HTML, CSS, TDD, Agile, pair programming, Bitbucket, Bamboo Qualifications Experience in the Salesforce and Force.com platform Apex, Aura/LWC, Visualforce development with a strong … understanding of development best practices Knowledge in JavaScript, HTML, CSS and understanding of CI/CD, REST API Experience working with Salesforce CPQ, Salesforce Billing, Revenue Recognition Certinia Financial Management and Accounting(Desirable) Additional Information Were a community here that cares as much about your life outside work ...

Full Stack Engineer

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
Looking to join a company when you can make a real impact? Do you have 3+ years commercial experience developing software with Java & JavaScript? 🚀 Full Stack Engineer – SaaS Solutions 🚀 💰 Salary – up to £55k + bonus 📍 Location – hybrid working 2 days a week in modern London office I am excited … Departments of Work & Pensions and International Trade. They are looking for a motivated Full Stack Engineer with experience with: Java Spring Boot Microservices JavaScript Frontend frameworks: they use Vue.js but are also open to React and Angular Containerisation using Docker, Kubernetes Developing cloud-native applications with AWS, GCP, Azure ...

Technical Lead, D365, Power Pages,

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550 per day + Hybrid
patterns Working extensively with Azure services , including Service Bus, API Management (APIM), Function Apps and Logic Apps Supporting pro-code extensibility using .NET and JavaScript , with exposure to React and Fluent UI for PCF controls (desirable) Engaging with emerging technologies such as Code Apps, AI-assisted development and 'vibe coding … recent, hands-on Power Platform development experience Strong expertise in Model-Driven Apps , with solid experience in Canvas Apps and PCF Good understanding of JavaScript-based frameworks used in PCF (React, Fluent UI - nice to have) Strong integration experience across Azure services, APIs and secure data exchange Experience working ...

Senior QA Engineer: Growth-Driven Quality & Automation

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Java Script Works is seeking a seasoned software engineer in Greater London. The ideal candidate will have at least 5 years of experience in QA and software engineering, along with proficiency in one or more ...

Front End React Developer

Hiring Organisation
Ascend Consulting
Location
NW7, Mill Hill, Greater London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £75000/annum Great Benefits
Front End React Developer, React, Javascript, NW London to £75K A leading financial software company are looking for a Front End JavaScript developer who is proficient with React.js. The role is Offcie based in North West London, Your primary focus will be on developing user interface components and implementing them … wireframes into high quality code Optimising components for maximum performance across a vast array of web-capable devices and browsers Skills Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model Experience developing with typescript Thorough understanding of React.js and its core principles Experience with Redux ...

Senior Front End Developer

Hiring Organisation
Searchability (UK) Ltd
Location
Bromley, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
FRONT END DEVELOPER Salary up to £65-80k Hybrid working - 3 days per week on-site in Bromley Modern front-end stack - Vue.js, JavaScript, HTML, CSS Opportunity to shape user-facing products in a growing tech team ABOUT THE CLIENT We're working with a growing UK-based organisation … suit someone who enjoys ownership, problem-solving, and building clean, maintainable code. SENIOR FRONT END DEVELOPER ESSENTIAL SKILLS Strong commercial experience with Vue.js Solid JavaScript (ES6+) experience Strong HTML and CSS skills Experience building responsive and user-focused web applications Understanding of front-end performance and optimisation Experience working ...

React Native Developer (Wallet team) (100% remote Worldwide)

Hiring Organisation
Tether.io
Location
City of London, London, United Kingdom
React Native. Collaborate with UI/UX designers to ensure applications are visually appealing and intuitive. Integration: Work closely with backend developers and integrate Javascript SDKs, libraries, and backend services into mobile applications. Collaboration: Collaborate with product managers, designers, and other developers to deliver innovative solutions. Requirements 3+ years … experience with React , React-Native (mainly around Expo) , Redux and the core principles surrounding these. Highly proficient in JavaScript and ES6+ . Experience with CI/CD pipelines for mobile development . Familiar with modern front-end pipelines and tools . Experienced with Native modules (C++) , WebSockets, RESTful based APIs ...

React Native Developer (Wallet team) (100% remote Worldwide)

Hiring Organisation
Tether.io
Location
East London, London, United Kingdom
React Native. Collaborate with UI/UX designers to ensure applications are visually appealing and intuitive. Integration: Work closely with backend developers and integrate Javascript SDKs, libraries, and backend services into mobile applications. Collaboration: Collaborate with product managers, designers, and other developers to deliver innovative solutions. Requirements 3+ years … experience with React , React-Native (mainly around Expo) , Redux and the core principles surrounding these. Highly proficient in JavaScript and ES6+ . Experience with CI/CD pipelines for mobile development . Familiar with modern front-end pipelines and tools . Experienced with Native modules (C++) , WebSockets, RESTful based APIs ...

SharePoint Office 365 Developer

Hiring Organisation
People First
Location
East London, London, England, United Kingdom
Employment Type
Temporary
Salary
£490 per day
Skills You'll Need: SharePoint Developer, DevOps. CSS, JavaScript, jQuery and HTML5 Your New Salary: UP TO £490 per day (umbrella) Hybrid (3 days onsite and 2 day a week from home (it might change in the beginning for training purpose) Temp for 6 Months initially. All roles will … with DevOps. Hands on development with Office 365 tools including SharePoint Online (PowerApps, Power Automate and SPFX or ReactJS) Hands on experience with CSS, JavaScript, jQuery and HTML5 Solid Rest API and Graph API knowledge Early morning or late night shift working (occasionally). Weekend working (occasionally). Please follow ...

Product Engineer

Hiring Organisation
WireMock
Location
City Of London, England, United Kingdom
Company Description WireMock is the industry standard for API environment simulation. With a massive global open-source footprint and deep adoption across the Fortune 500, we provide the critical infrastructure that engineering teams use to ...

Cyber Security - Senior SOAR Engineer (Financial Service)

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
We are seeking an experienced Senior SOAR Engineer to join the Cyber Security function of a leading investment bank. This is a key technical role within the Security Engineering team, where you will act as ...

Front End Developer

Hiring Organisation
hireful
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £85000/annum £80K - £85K Basic + 10% Bonus + Exte
We are working with a well-established, global software business to find a talented Front End Software Engineer for a fully UK remote, permanent position. This is a genuine opportunity to join a small, highly ...

Principal Engineer

Hiring Organisation
SCALERS GROUP LIMITED
Location
East London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
Scalers HQ are proud to be partnering with an innovative and fast growing Media organisation in London. We are looking for a Principal JavaScript Engineer/Team Lead to join their collaborative tech team. You'll play a key role in delivering cutting-edge AdTech analytics solutions, reporting directly … feature breakdown, technical planning, and release processes. Manage and mentor engineers along with growing a high-performing teams. Skills & Experience Required Extensive experience with JavaScript/TypeScript, React, Redux, and Node.js Strong experience in TDD and testing frameworks (Jest, Mocha, Cypres/Playright) A track record in modular system architecture ...