1 to 25 of 2,112 ECMAScript Jobs in London

experience of relational and NoSQL database design and implementation Experience building on container platforms such as Docker, Kubernetes Front-end skills Experience of using at least one of these JavaScript frameworks to create modern front-ends - React.js, Angular or Vue HTML, CSS, JavaScript (ES6) or TypeScript Webpack or Gulp A client-side Unit Testing framework e.g., Mocha or Jest Other More ❯

in Computer Science, Engineering, or a related field. Proven experience as a Software Engineer, Software Developer, or similar role. Proficiency in one or more programming languages (e.g., Java, Python, JavaScript, C#). Familiarity with front-end (e.g., React, Angular) and/or back-end (e.g., Node.js, Django, .NET) frameworks. Experience with databases (SQL and/or NoSQL), REST APIs, and More ❯

trends. Required Skills and Qualifications: Bachelor's degree in Computer Science, Information Technology, or related field, or equivalent practical experience. Proficiency in front-end technologies such as HTML, CSS, JavaScript, and modern frameworks/libraries such as React. Proficiency in mobile device technologies such for Kotlin (Android) and Swift (iOS) Strong understanding of server-side languages and frameworks such as More ❯

data models, and data transformation within data warehouses, knowledge of tools such as DBT is desired. Experience with front-end technologies, such as HTML5, CSS3, and JavaScript. Knowledge of JavaScript frameworks, such as React (preferred), Angular, and Vue.js. Knowledge of CSS frameworks, such as Bootstrap, Material UI, and Tailwind CSS. Strong understanding of API protocols and standards, including REST and More ❯

a Software Development Team Lead (Web) on a full-time, permanent, remote-working basis, in the UK. We are seeking a skilled senior Front-End developer with expertise in Javascript, Typescript & React to enhance products and services. This role will also contain line management responsibilities of a small team (3-4 people). The employee will play a pivotal role … this position, your core duties and responsibilities will include (but will not be limited to): Helping develop and maintain efficient, reusable, and reliable frontend code using HTML5/CSS3, JavaScript, TypeScript, and React Working closely with cross-functional teams, including UI/UX designers, backend developers, and product managers, to deliver high-quality user interfaces Ensuring the technical feasibility of … technologies to ensure our applications are built using the best practices Line managing a small team, developing their abilities through coaching and mentoring Our Technology Stack Frontend App Framework - JavaScript & TypeScript/React Frontend State Management - Mobx Backend – Java REST & GraphQL Services & Python CI/CD - GitHub & CircleCI Cloud – AWS What We Are Looking For The ideal candidate will be More ❯

and mobile applications for the company. Senior Full Stack Engineer Skills/Knowledge This role requires the following key skills and knowledge: Front-End: Proficiency in HTML, CSS, and JavaScript (including experience with TypeScript). Experience with front-end frameworks/libraries such as React, Angular, or Vue.js. Knowledge of data visualization libraries (e.g., D3.js, Chart.js). Understanding of modular More ❯

Science, Software Engineering, or a related discipline (or equivalent practical experience).. ● 3–5 years of experience in full stack development using modern technologies such as:. ○ Front-End: JavaScript, TypeScript, React, Angular, or Vue.js. ○ Back-End: Node.js, .NET, Java, Python, or similar. ○ Databases: PostgreSQL, MySQL, MongoDB, etc.. . ● Demonstrated experience in leading software development teams or managing projects.. ● Strong More ❯

here Our Tech & Tools AWS, AWS Serverless, Azure AWS CDK for C#, SST ECS, Linux, Ansible, Packer New Relic, Insight Hub Product Development Stacks: Ruby, Ruby on Rails, Ember.js, JavaScript NodeJS, TypeScript, Angular, TailwindCSS .NET 7, Blazor WebAssembly Puma, Sidekiq Postgres, Redis GitHub, AzureDevOps, Slite, Slack How You'll Make An Impact We are looking for a talented senior software … Bring With You Senior-level engineer with 5+ years of experience Strong at developing web applications using an object orientated language like Ruby, being familiar with Ruby on Rails, JavaScript, HTML and CSS Experience working with Single Page Applications and Javascript frameworks such as React, Angular, Vue.js or (preferably) Ember.js Desirable: A robust knowledge of building and working with RESTful More ❯

years experience in similar roles Software development, application development and cloud computing experience Experience in architecting software and creating applications from scratch Frontend: proficiency in languages like HTML5, CSS3, JavaScript, Java Backend: proficiency in languages like PHP, Python Django/Flask, Node.JS, Express.JS Operating Systems: Windows, macOS Databases: proficiency in databases like MySQL, SQL Server, MongoDB, PostgreSQL, etc. Familiarity with … CI/CD, and related tools like Jenkins, Azure, Docker, etc. Experience in developing web-based application and mobile applications Understanding of RESTful API-based architecture Frontend: Kotlin, Swift JavaScript Frameworks: React, AngularJS, Vue.JS, etc. Operating Systems: Android, iOS, Linux, ChromeOS Ability to write scripts in Linux and Windows environments (e.g., Makefiles, Bash scripting, PowerShell, etc.) Previous hands-on expertise More ❯

bring Skills and Experience Extensive experience in software engineering, with a strong focus on delivering incremental value through high-quality, scalable, and maintainable solutions. Strong proficiency in C#, .NET, JavaScript, and TypeScript (required). Proficiency in front-end development using frameworks like React, Vue.js, or Angular (preferred but not required). Proficiency with PHP (desirable) Experience working with cloud infrastructure More ❯

API. Web Application Frameworks (ASP.NET MVC, SPA) Enterprise content management achieved through Sitecore RESTful Microservices – light-weight efficient, decoupled APIs that scale well. Event driven architectures (Kafka) Modern reactive JavaScript Frameworks (React, Next.js, Vue.js, Angular) Advanced web topologies (Headless, Jamstack) Storage technologies like SQL, Redis and SOLR Automated UI and API testing (BDD, Selenium) Cloud technologies (Azure/AWS/ More ❯

Basic Qualifications: Knowledge of Microsoft Dynamics 365 FO architecture 4+ years of application development experience across the following technologies: Dynamics 365 FO product family X++ .Net Framework/Core Javascript, HTML5, CSS3, jQuery, XML Preferred Qualifications: Working knowledge or experience with any of the following technologies: SQL Server, SSIS, SSRS, Power BI JSON Addendum C – Ops- Solutions Support Entuity Software More ❯

data models, and data transformation within data warehouses, knowledge of tools such as DBT is desired. Experience with front-end technologies, such as HTML5, CSS3, and JavaScript. Knowledge of JavaScript frameworks, such as React (preferred), Angular, and Vue.js. Knowledge of CSS frameworks, such as Bootstrap, Material UI, and Tailwind CSS. Strong understanding of API protocols and standards, including REST and More ❯

strategy, influencing the direction of our engineering culture and practices while helping us build an environment where developers thrive and create meaningful change. Our Tech Stack Languages: TypeScript/JavaScript, C# Libraries and frameworks: React, Next.js, Node,js, .NET Testing: Vitest, PlayWright, Pact, K6 Datastores: PostgreSQL, CosmosDB, Redis Infrastructure and DevOps: GitHub Actions, Azure, Kubernetes, Docker, Terraform Monitoring: Grafana, Azure More ❯

the Scrum framework and utilising Azure DevOps to facilitate that work. Proficient in programming languages and tooling as follows: NET Core/.NET Framework, C# HTML/CSS/Javascript TypeScript, AngularJS, KnockoutJS QA tooling such as - Selenium, Playwright, Spectflow, Reqcnroll Azure DevOps, Git, Deployment Pipelines, Terraform Massaging Queues, API's: SOAP & REST Demonstrated expertise in building REST APIs for More ❯

the Scrum framework and utilising Azure DevOps to facilitate that work. Proficient in programming languages and tooling as follows: NET Core/.NET Framework, C# HTML/CSS/Javascript TypeScript, AngularJS, KnockoutJS QA tooling such as - Selenium, Playwright, Spectflow, Reqcnroll Azure DevOps, Git, Deployment Pipelines, Terraform Massaging Queues, API's: SOAP & REST Demonstrated expertise in building REST APIs for More ❯

patching strategies Environment strategy (Dev/Test/Prod) and release gating Git workflows (feature branching, pull requests) Confident in extending the functionality of Power Platform using C#, .Net, JavaScript/TypeScript to enable client-side logic. Able to lead on architecture and solution governance, transforming business requirements into scalable, maintainable solutions, including: Establishing naming conventions, environment strategy, security model More ❯

We're looking for a driven and curious Software Development Engineer with strong full stack experience. If you're passionate about creating intuitive user interfaces, have expertise in modern JavaScript frameworks, micro frontend architectures, and can reason about product development to contribute to overall end-to-end architecture, this is the opportunity for you. You'll contribute to our modern … in evolving our platform that powers real-time decision-making for our business. In This Role, You Will Design and develop responsive, performant, and accessible user interfaces using modern JavaScript frameworks (e.g., React), advanced front-end technologies, and TypeScript. Architect and implement micro frontend solutions to enable scalable, modular, and independently deployable frontend applications. Develop server-side applications and APIs … practices and patterns. Participate actively in technical discussions, design reviews, and code reviews. Continuously learn and grow your understanding of modern front-end technologies, micro frontend patterns, server-side JavaScript, and best practices. Work with RESTful APIs and GraphQL to integrate front-end applications with backend services. Support and improve CI/CD pipelines and implement robust front-end testing More ❯

this position, your core duties and responsibilities will include (but will not be limited to): Helping develop and maintain efficient, reusable, and reliable frontend code using HTML5/CSS3, JavaScript, TypeScript, and React Working closely with cross-functional teams, including UI/UX designers, backend developers, and product managers, to deliver high-quality user interfaces Ensuring the technical feasibility of … and productivity Staying up to date with the latest industry trends and technologies to ensure our applications are built using the best practices Our Technology Stack Frontend App Framework - JavaScript/TypeScript/React Frontend State Management - Mobx Backend – Java REST/GraphQL Services CI/CD - GitHub/CircleCI Cloud – AWS What we are looking for A Bachelor's … Technology, or a related field Mid to senior level experienced developer Demonstrable success and involvement in software design and implementation of production-ready clients using technologies such as: HTML5, JavaScript, CSS3, Typescript, and React Experience with APIs and using patterns such as REST and GraphQL Experience with testing frameworks and methodologies, ensuring the delivery of high-quality software Strong problem More ❯

following, and be capable of learning the rest as needed: • Distributed or large-scale systems • MySQL/SQL database design, query optimisation and admin • Web development in HTML, CSS, JavaScript, Vue/React • Apache web server software and related modules • Cloud platforms and concepts (AWS, Google Cloud, Azure) • Setup, testing and administration of CI/CD pipelines • Networking and firewalling … following, and be capable of learning the rest as needed: • Distributed or large-scale systems • MySQL/SQL database design, query optimisation and admin • Web development in HTML, CSS, JavaScript, Vue/React • Apache web server software and related modules • Cloud platforms and concepts (AWS, Google Cloud, Azure) • Setup, testing and administration of CI/CD pipelines • Networking and firewalling More ❯

issues. Experience with recruiting, managing, and developing engineers or other deeply technical contributors. Deep knowledge and use of at least one common web backend language: e.g., Python, Scala, Java, JavaScript (Node.js) including toolchains for documentation, testing, and operations/observability. Developing and deploying applications in a cloud environment like Google Cloud (preferred), AWS, Azure Strong experience with modern software development … tools/ways of working (e.g. git/GitHub, DevOps tools, metrics/monitoring, ...) Proficiency in front-end technologies: JavaScript, Typescript, React.js, Angular.js or similar. API development using technologies and standards like REST/GraphQL/gRPC or similar. Experience in an open-source web framework preferably implemented in Python, Java, Scala, or similar. Experience with Authentication & Authorisation Mechanisms More ❯

to systems analysis and development. Application frameworks such as Spring Boot/Cloud. Microservice Architectures. Cloud Platforms such as AWS, GCP or Azure. Web technologies including HTML, CSS, advanced Javascript, Web Services. Continuous Integration/Continuous Delivery. BDD, pair programming. Agile development methods such as Scrum or Kanban. REST API development and/or consumption. Relational databases MySQL, SQL Server More ❯

Continuous Delivery with Jenkins. RabbitMQ/MassTransit. Microfrontends. Test Driven Development. RESTful API design. GitFlow. We Would Like To Meet Someone Who Is Minimum 4 years of C#, SQL, JavaScript/TypeScript to an advanced level in a commercial environment. Minimum 2 Year’s Commercial Experience Of React Produces initial results rapidly and iterate based upon feedback. Knowledge of microservice More ❯

to offer. ABOUT THE ROLE Tech Stack Backend: AWS Serverless Service, including Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge, Kinesis, Node.js, YAML Frontend: React/Next.js Programming: TypeScript; JavaScript, Python Infrastructure: Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. As a Senior Full-stack Software Engineer, you will be responsible for guiding More ❯

Direct problem solving for projects or major phases of projects to resolve software technical issues Develop, test, debug, and implement software programs, applications and projects using Java, C#, SQL, JavaScript, or other related software engineering as well as keeping abreast of emerging technologies impactful to CRDs business. Provide informed guidance and critical analysis of proposed changes during code reviews. Write More ❯