51 to 75 of 302 ECMAScript Jobs in London

Frontend React Developer

Hiring Organisation
Explore Group
Location
London Area, United Kingdom
deployment and monitoring. What We’re Looking For Strong production experience with React , TypeScript and Next.js . Excellent skills in HTML5 , CSS3 , and modern JavaScript (ES6+). Proven experience with state‐management libraries (e.g., Redux, Zustand). Solid experience integrating front‐end apps with RESTful APIs, (GraphQL is a bonus ...

Full Stack Software Engineer

Hiring Organisation
SoTalent
Location
London Area, United Kingdom
Agile ceremonies such as sprint planning, estimation, and retrospectives Work across a varied and evolving technology stack Skills & Experience Strong commercial experience with JavaScript, Node.js, and React Solid understanding of application architecture, including performance, scalability, and security considerations Experience delivering projects in fast-paced environments with tight deadlines Familiarity with ...

Head of Engineering

Hiring Organisation
techUK
Location
London, United Kingdom
Employment Type
Permanent
Salary
£60,000
driven integrations between enterprise platforms including CRM systems, web platforms, marketing systems, and analytics environments. Strong programming capability in languages such as Python, JavaScript/TypeScript, or C#. Experience developing integrations, automation pipelines, and backend services that support operational workflows. Experience working with modern web architectures, ideally including headless ...

ML/AI Software Engineer

Hiring Organisation
RedTech Recruitment
Location
London Area, United Kingdom
Learning Specialist/Vision Systems Engineer/AI/ML Software Developer/Computer Science/C/Java/Python/C#/JavaScript/Go/Golang/Kotlin/Docker/Programmer/Software Engineer/Software Developer/Programming/Coding/programmer/LLM/ ...

Full Stack Engineer

Hiring Organisation
Diligent
Location
London, England, United Kingdom
technical experience. Must-have 3+ years of professional software engineering experience building and shipping production systems 3+ years with modern web technologies (TypeScript/JavaScript, React, Node.js) 2+ years of experience with AWS, specifically serverless Experience building and deploying scalable backend systems and APIs Comfortable working across the full stack ...

Senior Lead Java Engineer – OMS & Equities (VP)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Kingdom is seeking a Senior Lead Software Engineer to design and deliver technology products. The ideal candidate will have expertise in Java and modern JavaScript frameworks. Responsibilities include mentoring junior developers, collaborating within an agile team, and troubleshooting technical issues. A fast-paced environment demands strong problem-solving and communication ...

Sharepoint Specialist

Hiring Organisation
DGH Recruitment
Location
City Of London, England, United Kingdom
SharePoint Online. Proven expertise in SharePoint Framework (SPFx) development. Proven experience in Sharepoint administration, including patching, upgrades, performance tuning, and troubleshooting. Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices. Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. Solid experience with C# ...

Dynamics 365 Developer

Hiring Organisation
Noir
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
Dynamics 365 Developer - Remote (Tech stack: Microsoft Dynamics 365, PowerApps, Power Platform, C#, .NET, SQL, JavaScript, DevOps, Agile) Our client is a specialist technology business delivering bespoke solutions within the legal tech space. They are looking to recruit a Dynamics 365 Developer to work across both existing systems ...

Sharepoint Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
migrating SharePoint 2016 on-premise environments to SharePoint SE and/or SharePoint Online. - Proven expertise in SharePoint Framework (SPFx) development. - Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices. - Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. - Solid experience with C# ...

Lead Developer, Full Stack Engineer, Azure, .NET, C#, React, LogicApps

Hiring Organisation
Carrington Recruitment Solutions Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
candidates usually fall down on their lack of skills with LogicApps this is essential Good, hardened Full Stack Development skills within C#, .NET, React, JavaScript, HTML/CSS, Azure PaaS (Azure Functions, Azure Logic Apps, Cosmos DB, Azure App Service, ARM/Bicep templates), SharePoint Acceptance that Development ...

Lead Platfrom Engineer

Hiring Organisation
Tiro Partners
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
candidates from AWS or Azure backgrounds GCP is where you'll operate. The must-haves are: Kubernetes (GKE) Docker Terraform PHP (Symfony/Drupal) JavaScript Go Cloud SQL/MySQL Redis Nginx Cloud Load Balancing Varnish CDNs Cloudflare Bonus: GCP, BigQuery, Apigee, Vertex AI About You Proven leadership of Platform ...

Lead Platform Engineer

Hiring Organisation
Tiro Partners Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £120,000 per annum
candidates from AWS or Azure backgrounds — GCP is where you'll operate. The must-haves are: Kubernetes (GKE) · Docker · Terraform · PHP (Symfony/Drupal) · JavaScript · Go · Cloud SQL/MySQL · Redis · Nginx · Cloud Load Balancing · Varnish · CDNs · Cloudflare Bonus: GCP, BigQuery, Apigee, Vertex AI About You Proven leadership of Platform ...

Frontend Developer

Hiring Organisation
Rullion - Eon
Location
London, Farringdon, United Kingdom
Employment Type
Contract
developers to integrate RESTful APIs and handle data flow effectively. Knowledge and Skills: Proven experience in React.js and TypeScript development. Strong understanding of JavaScript and modern front-end technologies. Experience with state management libraries like Redux, Recoil, or similar. Familiarity with RESTful APIs Experience with version control systems, such ...

Senior Software Engineer

Hiring Organisation
Burns Sheehan
Location
Greater London, England, United Kingdom
engineering community to foster an inclusive and collaborative culture, encouraging peer to peer feedback and evolving healthy, curious and humble teams. Tech Stack: Python, Javascript/Typescript, React/React Native, AWS, GraphQL, Snowflake, Airflow, DDD. This is an incredible opportunity for a Senior Software Engineer to join a unique ...

Front End React Developer!

Hiring Organisation
Akkodis
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
their needs into technical solutions.Present your innovative solutions confidently to key stakeholders.We're Looking For Someone Who Has:Proficiency in front-end technologies (e.g., JavaScript, React).Strong skills in Python (Pandas, APIs, etc.).Experience with version control systems, preferably Git.Understanding of cloud services and deployment (e.g., Azure).Familiarity with Agile ...

Frontend Engineer

Hiring Organisation
Zuma Labs
Location
Greater London, England, United Kingdom
architecture. Identify UI/UX and performance bottlenecks and implement improvements. Required Qualifications & Experience Strong TypeScript and React experience (React 16+). Proficient in JavaScript ES6+. Experience with React Testing frameworks like Jest and Enzyme. A keen sense of design and desire to build a better mousetrap. General understanding ...

QA Automation Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £65,000 per annum
frontend web applications and backend APIs. * Hands-on experience with Java, Kotlin, TypeScript or Python in an automation context. * Strong understanding of HTML, CSS, JavaScript and web application behaviour. * Experience building UI tests with tools such as Selenium or Playwright. * Working knowledge of test frameworks such as JUnit or TestNG. ...

SharePoint 365 Developer

Hiring Organisation
Pontoon
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 - 415 Daily
possess: Proven experience in SharePoint development (preferably SharePoint Online). Strong knowledge of SharePoint Framework (SPFx), REST APIs, and Microsoft Power Platform. Familiarity with JavaScript, HTML, CSS, and related web technologies. Excellent communication skills to engage with both technical and non-technical stakeholders. A team-oriented mindset and a willingness ...

Web Developer (CMS Specialist)

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 35,000 - 50,000 Annual
best practices Skills & Experience Strong experience with CMS platforms, particularly Umbraco Solid understanding of Front End development, with some Back End knowledge Experience with JavaScript, C#, and .NET technologies Familiarity with ASP.NET Core MVC, Web API, and CMS-based solutions Strong troubleshooting and debugging skills Good eye for design ...

Senior Fullstack Software Engineer

Hiring Organisation
Outsmart Insight
Location
City of London, London, United Kingdom
evolving well-structured RESTful APIs Designing and improving data models across relational (e.g. PostgreSQL) and NoSQL databases Working across the stack where needed, including JavaScript, modern HTML/CSS, and utility frameworks such as Tailwind Contributing to cloud-based infrastructure (e.g. Google Cloud), deployment pipelines and DevOps practices Debugging live ...

Product Engineer (Ruby on Rails)

Hiring Organisation
Resi
Location
City of London, London, United Kingdom
strong eye for frontend quality - you care about how things look and feel, not just whether they work Comfortable working with HTML, CSS, and JavaScript across a modern Rails frontend stack Familiarity with relational databases (PostgreSQL preferred) and writing efficient queries Comfortable building and consuming APIs as part of delivering ...

Javascript Developer

Hiring Organisation
Venturi
Location
London Area, United Kingdom
React/TypeScript Developer – Contract 📍 Canary Wharf, London (4 days onsite) 💰 £500 per day (Inside IR35) 📅 6 Month Contract We are currently working with a consultancy that is looking to bring an experienced React/ ...

Senior Fullstack Typescript Engineer at $150m Funded Social-Good eCommerce Scale-up

Hiring Organisation
Grey Matter Recruitment
Location
London Area, United Kingdom
implement well-tested new product features. This role isn't just about coding, its about influencing product and business impact Desired Skills & Experience Fullstack JavaScript/TypeScript/Node.js software engineering experience SASS, DynamoDB, AWS Lambda, and Serverless Framework are all beneficial eCommerce/Shopify experience is a bonus ...

Senior AI Engineer

Hiring Organisation
Impala Search
Location
London Area, United Kingdom
Collaborate directly with customers to solve real problems What they are looking for 2 to 5 years of software engineering experience Strong skills in JavaScript or TypeScript, with some Python Experience building and shipping production systems Exposure to LLMs or applied AI in real world use cases Pragmatic mindset with ...

Senior Platform Architect

Hiring Organisation
McGregor Boyall Associates Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
development practices Engage senior stakeholders across technology and business Translate complex technical decisions into clear, commercial outcomes Technology Environment Backend: TypeScript/C# Frontend: JavaScript/React Cloud: AWS (containers, serverless, broader ecosystem) What They're Looking For Strong platform/solution architecture experience in modern cloud environments Background building ...