101 to 125 of 1,328 ECMAScript Jobs in London

programming concepts (OOP, data structures, debugging) Eagerness to learn cloud technologies such as AWS A collaborative mindset and attention to detail Nice to have (not essential): Basic exposure to JavaScript or front-end frameworks Experience with CI/CD tools (GitHub Actions, Azure DevOps, etc.) Familiarity with Docker or containerization concepts What’s on Offer Salary up to More ❯

programming concepts (OOP, data structures, debugging) Eagerness to learn cloud technologies such as AWS A collaborative mindset and attention to detail Nice to have (not essential): Basic exposure to JavaScript or front-end frameworks Experience with CI/CD tools (GitHub Actions, Azure DevOps, etc.) Familiarity with Docker or containerization concepts What’s on Offer Salary up to More ❯

years in a lead developer role. Proven track record in leading small, high-performing engineering teams in fast-paced environments. Deep expertise in full-stack development, including: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Python (Django, Flask, or FastAPI) PostgreSQL Experience with building and scaling SaaS platforms in production. Strong background in software architecture, microservices, and API design. Hands-on experience More ❯

services. Implement best practices for Databricks development and deployment. Optimise Databricks workloads for performance and cost. Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: Integrate data from various sources, including relational databases, APIs, and streaming data sources. Implement data integration patterns and best practices. Work with API developers to ensure seamless data More ❯

services. Implement best practices for Databricks development and deployment. Optimise Databricks workloads for performance and cost. Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: Integrate data from various sources, including relational databases, APIs, and streaming data sources. Implement data integration patterns and best practices. Work with API developers to ensure seamless data More ❯

services. Implement best practices for Databricks development and deployment. Optimise Databricks workloads for performance and cost. Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: Integrate data from various sources, including relational databases, APIs, and streaming data sources. Implement data integration patterns and best practices. Work with API developers to ensure seamless data More ❯

services. Implement best practices for Databricks development and deployment. Optimise Databricks workloads for performance and cost. Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: Integrate data from various sources, including relational databases, APIs, and streaming data sources. Implement data integration patterns and best practices. Work with API developers to ensure seamless data More ❯

analytics tracking code using Tealium iQ, Tealium Event Stream, and Adobe Analytics Experience of integrating data sources via web and hypermedia APIs Proficient in Web Technologies like HTML, CSS, JavaScript, React.js, Next.js and Node.js, and in event-driven and eventual consistency systems using Kafka, .Net, Java, REST APIs, AWS, Terraform and DevOps Nice to have:experience in data pipping and More ❯

help engineers thrive. Energised by fast paced, regulated environments where we ship at speed, embrace change, and never stop evolving. Your Technical Toolkit React/React Native/TypeScript JavaScript/iOS (Swift) or Android (Kotlin) RDBMS (Oracle/Sybase)/NoSQL databases (Document DB) AWS and cloud-native microservices containerised architecture (e.g. K8s, Docker) Modern software engineering practices with More ❯

Full Stack JavaScript Developer/Engineer (JavaScript Vue.js Node) London to £80k Are you a collaborative JavaScript technologist? You could be progressing your career as a Full Stack JavaScript Developer at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets … and partnership with Octopus Electric Vehicles and Evans Cycle to Work scheme, there's showers and towels if you do decide to cycle! Your role: As a Full Stack JavaScript Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You … ll work across the full tech stack using JavaScript and Vue.js on the front end, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your own DevOps More ❯

related field (or equivalent work experience). • Proven experience as a Front-End Developer with a focus on React.js and Typescript. • Familiarity with C# and .Net. • Strong proficiency in JavaScript, ES6/ES7, and related front-end technologies. • Familiarity with state management libraries such as Redux. • Experience with version control systems, such as Git. • Experience with the Web Content Accessibility More ❯

related field (or equivalent work experience). • Proven experience as a Front-End Developer with a focus on React.js and Typescript. • Familiarity with C# and .Net. • Strong proficiency in JavaScript, ES6/ES7, and related front-end technologies. • Familiarity with state management libraries such as Redux. • Experience with version control systems, such as Git. • Experience with the Web Content Accessibility More ❯

related field (or equivalent work experience). • Proven experience as a Front-End Developer with a focus on React.js and Typescript. • Familiarity with C# and .Net. • Strong proficiency in JavaScript, ES6/ES7, and related front-end technologies. • Familiarity with state management libraries such as Redux. • Experience with version control systems, such as Git. • Experience with the Web Content Accessibility More ❯

related field (or equivalent work experience). • Proven experience as a Front-End Developer with a focus on React.js and Typescript. • Familiarity with C# and .Net. • Strong proficiency in JavaScript, ES6/ES7, and related front-end technologies. • Familiarity with state management libraries such as Redux. • Experience with version control systems, such as Git. • Experience with the Web Content Accessibility More ❯

with at least 3 years in a lead role Proven ability to led teams and drive cross-functional delivery in a matrix environment Strong command of full stack development: Javascript (React/Angular), Node.js or Java/.NET/Python and SQL Hands-on experience with AWS architecture and services (Glue, Lambda, API gateway, IAM, S3, CloudWatch etc.) Prior experience More ❯

with at least 3 years in a lead role Proven ability to led teams and drive cross-functional delivery in a matrix environment Strong command of full stack development: Javascript (React/Angular), Node.js or Java/.NET/Python and SQL Hands-on experience with AWS architecture and services (Glue, Lambda, API gateway, IAM, S3, CloudWatch etc.) Prior experience More ❯

with at least 3 years in a lead role Proven ability to led teams and drive cross-functional delivery in a matrix environment Strong command of full stack development: Javascript (React/Angular), Node.js or Java/.NET/Python and SQL Hands-on experience with AWS architecture and services (Glue, Lambda, API gateway, IAM, S3, CloudWatch etc.) Prior experience More ❯

with at least 3 years in a lead role Proven ability to led teams and drive cross-functional delivery in a matrix environment Strong command of full stack development: Javascript (React/Angular), Node.js or Java/.NET/Python and SQL Hands-on experience with AWS architecture and services (Glue, Lambda, API gateway, IAM, S3, CloudWatch etc.) Prior experience More ❯

to automation. WE NEED THE SENIOR SOFTWARE ENGINEER TO HAVE. Current enhanced DV clearance Experience with at least one or more of the following: Java, Python, C++, .NET, C#, JavaScript, React Experience mentoring juniors or leading a team Experience/Knowledge of automation IT WOULD BE NICE FOR THE SENIOR SOFTWARE ENGINEER TO HAVE. Cloud based experience Microservice architecture or More ❯

grade applications. Strong backend skills in Python (FastAPI, Flask) with experience designing APIs and integrating databases (e.g. GraphDB, CosmosDB, SQL). Solid frontend development skills in React, TypeScript/JavaScript, HTML, and CSS . Understanding of modern development best practices, including agile delivery, CI/CD, and automated testing. Passion for emerging tech and willingness to learn Generative AI and More ❯

code reviews to maintain code quality and consistency Qualifications & Skills: •A degree in computer science, software engineering, or a related field •Proficiency in React.js and its core principles •Strong JavaScript, TypeScript HTML5, and CSS3 skills •Experience with popular React.js workflows (such as Redux) •Familiarity with RESTful APIs and integration •Knowledge of modern authorization mechanisms, such as JSON Web Tokens •Understanding More ❯

code reviews to maintain code quality and consistency Qualifications & Skills: •A degree in computer science, software engineering, or a related field •Proficiency in React.js and its core principles •Strong JavaScript, TypeScript HTML5, and CSS3 skills •Experience with popular React.js workflows (such as Redux) •Familiarity with RESTful APIs and integration •Knowledge of modern authorization mechanisms, such as JSON Web Tokens •Understanding More ❯

code reviews to maintain code quality and consistency Qualifications & Skills: •A degree in computer science, software engineering, or a related field •Proficiency in React.js and its core principles •Strong JavaScript, TypeScript HTML5, and CSS3 skills •Experience with popular React.js workflows (such as Redux) •Familiarity with RESTful APIs and integration •Knowledge of modern authorization mechanisms, such as JSON Web Tokens •Understanding More ❯

code reviews to maintain code quality and consistency Qualifications & Skills: •A degree in computer science, software engineering, or a related field •Proficiency in React.js and its core principles •Strong JavaScript, TypeScript HTML5, and CSS3 skills •Experience with popular React.js workflows (such as Redux) •Familiarity with RESTful APIs and integration •Knowledge of modern authorization mechanisms, such as JSON Web Tokens •Understanding More ❯

years specialising in Shopify/Shopify Plus in a senior or lead position. Deep understanding of Shopify’s Liquid templating language and theme architecture. Strong proficiency in HTML5, CSS3, JavaScript (ES6+), React/Vue , and modern front-end build tools (Webpack, Vite, etc.). Experience building custom Shopify apps using Node.js or Ruby on Rails . Familiarity with Headless/ More ❯