ECMAScript Jobs in London

226 to 250 of 703 ECMAScript Jobs in London

Full Stack Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Be Technology
a link to a portfolio or GitHub. Required Skills: WordPress, including building custom themes/plugins Headless CMS Web markup, including HTML5, CSS, and JavaScript/TypeScript Knowledge and experience of Git Sass, Webpack, and CSS frameworks like Tailwind React/NextJS and GraphQL Working with Restful APIs HTML emails more »
Employment Type: Permanent, Work From Home
Salary: £40,000
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SQL Client Solutions Engineer - Homebased

E1, Portsoken, Greater London, United Kingdom
Hybrid / WFH Options
Wilmington plc
excellent client satisfaction. Strong knowledge of SQL Server and Transact SQL. Knowledge of web-based technology and related products, such as Snowflake, Tableau, HTML, JavaScript and CSS. Ability to work to agreed timescales, keeping clients informed of any delays. Confidence in a customer facing role with excellent interpersonal & relationship building more »
Employment Type: Permanent
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Senior Java Developer

London, United Kingdom
Hybrid / WFH Options
yolk recruitment
modern backend solutions for critical applications in Java. They develop in a highly Agile/Scrum focused environment their core tech stack is Java, JavaScript, AWS. While the role is backend focused any exposure to fronetnd technologies (particularly React) would be highly beneficial. They're based in London & operate hybrid more »
Employment Type: Permanent
Salary: £65000 - £85000/annum
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Cloud Infrastructure Engineer

London, United Kingdom
Confidential
scalability, observability, security and performance of infrastructure Manage and support trading infrastructure operations Skills and Experience Our technology stack includes: Terraform Ansible Java Python Javascript/Typescript Netty Aeron SBE Chronicle Influxdb Prometheus Grafana Jenkins Ubuntu/CentOS some React UIs Experience in infrastructure management with strong focus on AWS more »
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Staff Software Engineer

London Area, United Kingdom
Haystack
pipelines A breadth of knowledge about all aspects of software development and a strong appreciation for monitoring and alerting. Preferably having experience with Python, Javascript, Golang, or a similar language. Working knowledge of GCP, SQL, and terraform (HCL) would be beneficial, but not essential Committed to your own development and more »
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Senior Engineer - Full Stack (Remote)

London, United Kingdom
Hybrid / WFH Options
Confidential
5+ years of experience with Python and Python web frameworks (Django, Flask, FastAPI, etc...) 5+ years of experience with front-end technologies, such as JavaScript, Typescript, and React Able to create database schemas that represent and support business processes Unit test and debugging skills 3+ years of work experience with more »
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Tech Lead

London, England, United Kingdom
Matchtech
front-end software engineers. Good communication skills with various levels of people. Experience in a software leadership role. Experience with front-end technologies like JavaScript, React, HTML, CSS, and UI/UX. Knowledge of testing frameworks. Knowledge of agile working practices. Great coaching skills to get the best out of more »
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Senior Frontend Engineer (React/Angular)

Greater London, England, United Kingdom
ThisThat
Industry Choice of SaaS or Technology” and “Best Influencer Marketing Technology” OUR TECH STACK: Our main technologies are: GitHub (with GitHub actions) TypeScript (Javascript) (backend & frontend) Node.js (backend) NestJS (backend) Angular (+ HTML, SCSS) (Material UI in SaaS platform) React (with Next.JS framework, custom MUI components) TypeORM (backend) PostgreSQL (backend more »
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DevOps Engineer (DV Cleared)

London, United Kingdom
Hybrid / WFH Options
Confidential
platforms such as AWS, Azure, or Google Cloud. Design and implement cloud-based solutions for application deployment, scaling, and management. Utilize C#, PowerShell, and JavaScript to develop and enhance automation scripts and tools. Collaborate with development teams to integrate DevOps practices into the software development lifecycle. Work with source control more »
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Tech Lead- Mobile Apps

London, United Kingdom
Hybrid / WFH Options
Confidential
meets their requirements You have in-depth experience of some of the following tools and technologies: React native, React, .net Core, node.js, Typescript (or Javascript), Redux, Terraform, Docker, GraphQL, REST, AWS You have a genuine interest in software development, with a strong willingness to learn and to remain up to more »
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Quality Assurance Engineer

London, Simpson, Buckinghamshire, United Kingdom
Hybrid / WFH Options
Triad
practices (Apprenticeship/Degree/Masters etc). Proven experience in test automation using Playwright, Cypress and Selenium WebDriver. Coding skills in TypeScript/JavaScript plus either C# or Java. Familiarity with public sector projects and compliance requirements is highly desirable. Previous experience working in a consultancy environment is beneficial. more »
Employment Type: Permanent
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Staff Software Engineer, Stablecoin

London, England, United Kingdom
Ripple Labs
APIs experience. Interest in the cryptocurrency, decentralized finance(Defi) space. Understanding of exchange, crypto payment, decentralized finance, NFTs, etc. Experience with React or other javascript frameworks Experience with Solidity or Rust WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced start-up environment with more »
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Director of Engineering

London, United Kingdom
Hybrid / WFH Options
Confidential
Strong technical expertise in cloud-based infrastructure. Experience with AWS preferred. Technology delivery experience working across a number of different stacks and industries. Go, Javascript, TypeScript, React, and Python are all in active use. What we ll offer: Competitive salary and equity in a rapidly growing VC-backed start-up more »
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Senior Software Engineer (Vue)/FE - EU

London, United Kingdom
Hybrid / WFH Options
Confidential
Jest/Cypress.. Strong expertise in Vue.js framework. Experience with state management libraries such as Pinia/Vuex. Have strong demonstrable experience with a JavaScript framework of your choice (React/Angular/Vue, etc). Possess excellent knowledge of core web technologies such as HTML, CSS and TypeScript/… and/or Swift/Kotlin/C#/Java. Experience working on products with external product owners Contributions to open-source software (specifically JavaScript) Coding blog or hobby projects, showcasing your knowledge of technical concepts Benefits Private healthcare coverage Free Flu Jab for you and your family members more »
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Senior Software Engineer

London, United Kingdom
Confidential
This job is brought to you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board. Role Purpose Working within our Software Engineering group you will enhance and support new and existing products. In addition, the more »
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Full Stack Engineer

Greater London, England, United Kingdom
Harrington Starr
office. You will be working on developing a market-leading energy trading data platform. Key Technical Skills: Commodities trading experience (Essential) Strong knowledge of JavaScript, HTML5, and CSS3. React experience Programming experience in Python You must have AWS experience Experience: Experience of containerization (Docker) Commodities trading experience is essential This more »
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Senior Software Engineer

London Area, United Kingdom
Propel
Qualifications Bachelor's degree in Computer Science (or related field) 6+ years of relevant work experience Expertise in one or more of the following: JavaScript, Python, Java, Go or C++ Experience in building advertising platforms that have large data usage. more »
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Senior/Lead Node.js Developer - FinTech

London, England, United Kingdom
Oliver Bernard
now looking for an experienced Node.js Developer as they enter the next growth stage. Requirements: At least 5+ years of Node.js experience 5+ years JavaScript experience Experience with AWS and MySQL js Any prior experience with Python is a bonus Git, Jira Currently operating a hybrid flexible working policy, with more »
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Full Stack Engineer

London Area, United Kingdom
Hybrid / WFH Options
developrec
based in Central London but offer a remote working policy with once a month on site. Tech Stack: C# .NET 6 (moving to .NET8) JavaScript Knockout React (other modern JS considered, Angular, Vue etc.) Monolithic and Microservices architecture JWT API design SQL WebAPI Nunit,XUnit, MSTest Desirable: Understanding of integrations more »
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Node Developer

Greater London, England, United Kingdom
Hybrid / WFH Options
Imperium Talent
a relaxed working environment, with a fantastic company culture and the option to work from home 90% of the time. Skills Required: Node Typescript, JavaScript React AWS (Desired) They are looking to move on interviews quickly given how busy the market is! If your skills are suited and you would more »
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Software Developer (SC Cleared)

London, United Kingdom
Hybrid / WFH Options
Syntax Consultancy Ltd
like Snowflake and Azure Data Lake Services (ADLS). Developing solutions for Proof of Concept (POC) + Minimum Viable Products (MVP). Advantageous: Banking, JavaScript, HTML, CSS + front-end development tools. more »
Employment Type: Permanent
Salary: £70000 - £90000/annum (DOE) + Benefits
Posted:

Developer (Banking)

London, United Kingdom
Hybrid / WFH Options
Syntax Consultancy Ltd
Azure Data Lake Services (ADLS). Developing solutions for Proof of Concept (POC) + Minimum Viable Products (MVP). Advantageous: active SC Security Clearance, JavaScript, HTML, CSS + front-end development tools. more »
Employment Type: Permanent
Salary: £70000 - £90000/annum (DOE) + Benefits
Posted:

Software Test Engineer

Greater London, England, United Kingdom
Hybrid / WFH Options
Yolk Recruitment Ltd
re looking for people with experience in the following areas: Building automated test frameworks using selenium, Cypress or similar tools. Programming in Java, C#, JavaScript or Python. Strong experience working in Agile/Scrum focused environments. Exposure to CI/CD pipeline management (Jenkins, Git, Docker, Kubernetes etc). Holding more »
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Frontend Developer

London Area, United Kingdom
La Fosse
their customers. What you need to apply The main experience they are looking for is someone with 3+ years experience working within: React.js Next.js JavaScript TypeScript HTML5 and CSS3 Knowledge of CI/CD processes and tools Familiarity with testing frameworks such as Jest or Mocha. Benefits Flexible working with more »
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QA Engineer - Permanent - London/Remote - £60-80,000 + Equity

London Area, United Kingdom
Hybrid / WFH Options
Saffron QA
or numerical skills. Experience of manual, exploratory and automation testing, working in Agile teams. Experience of programming in at least one language, ideally Typescript, JavaScript or Python. Experience of Playwright, Cypress or Webdriver.io Strong stakeholder management and communication skills and the ability to push back as and when required. The more »
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