226 to 250 of 700 ECMAScript Jobs in London

high-performance digital services. Key Responsibilities Design and deliver high-quality microservices using Java (Spring Boot) Build user-centric front-end applications using JavaScript/TypeScript, React, HTML and CSS Develop cloud-native solutions on platforms such as AWS or Azure Use CI/CD pipelines and version control tools … Skills & Experience Active Developed Vetting (DV) clearance Strong experience building microservices with Java/Spring Boot Front-end engineering experience with React & TypeScript/JavaScript CI/CD experience (GitLab, GitHub, Jenkins) Proficiency with Git and cloud technologies Experience with Docker and agile delivery Desirable Skills Terraform or other ...

experience developing and managing a Vue web app. Strong knowledge of Vue 2 and Nuxt 2 Experience with Vue 3 Vuetify framework experience Strong javascript skills API integration experience Experience with CSS/SCSS Bonus Points: Vue 2 to Vue 3 migration experience Familiarity with Python and Django Azure clould ...

experience developing and managing a Vue web app. Strong knowledge of Vue 2 and Nuxt 2 Experience with Vue 3 Vuetify framework experience Strong javascript skills API integration experience Experience with CSS/SCSS Bonus Points: Vue 2 to Vue 3 migration experience Familiarity with Python and Django Azure clould ...

expertise in AWS cloud services and extensive experience provisioning infrastructure with tools such as CloudFormation, CDK, and Terraform. Hands-on experience with TypeScript and JavaScript, including Node.js and NestJS. Solid understanding of cloud security principles, including identity and access management (IAM), networking, and encryption. Excellent communication skills, with the ability ...

significantly in the last few years and are looking for someone who can join in the process of growing their brand. Essential skills: · Fullstack JavaScript and Node.js development experience. · Hands on experience of developing REST web services and API's. · Knowledge and experience of deploying to cloud services, preferably AWS. ...

significantly in the last few years and are looking for someone who can join in the process of growing their brand. Essential skills: · Fullstack JavaScript and Node.js development experience. · Hands on experience of developing REST web services and API's. · Knowledge and experience of deploying to cloud services, preferably AWS. ...

building out greenfield features used by thousands of users every day. We’re looking for: 👉🏼 3+ years’ commercial experience with React Native & React 👉🏼 Strong JavaScript/TypeScript development background 👉🏼 Solid knowledge of state management, REST APIs, HTTP, async programming 👉🏼 Hands-on experience integrating with AWS (Cognito, Amplify, S3) 👉🏼 Experience working ...

building out greenfield features used by thousands of users every day. We’re looking for: 👉🏼 3+ years’ commercial experience with React Native & React 👉🏼 Strong JavaScript/TypeScript development background 👉🏼 Solid knowledge of state management, REST APIs, HTTP, async programming 👉🏼 Hands-on experience integrating with AWS (Cognito, Amplify, S3) 👉🏼 Experience working ...

estimation, prioritisation and sprint planning Maintain high code quality through peer reviews and security-focused development Technical Skills & Experience Strong experience in data modelling JavaScript, TypeScript, React and Node.js OAuth-based authentication and authorisation Data streaming technologies PostgreSQL AWS Lambda Outside IR35- Full stack Developer - 3 months+ - Remote with ...

team grows Skills 4+ years commercial software development experience 2–3+ years experience with React.js 2–3+ years experience with Node.js and modern JavaScript (ES6+) Experience with relational databases such as Postgres Familiarity with Git and CI/CD workflows Strong collaboration and communication skills Agile development experience Writing clean ...

align with best practices and market trends What We’re Looking For Strong experience with OmniStudio (OmniScripts, Integration Procedures, Data Mappers) Proficiency in Apex , JavaScript , and Lightning Web Components Integration experience (Mulesoft/APIGEE/Connected Apps) beneficial Familiarity with automated testing tools (Provar, Selenium) desirable Excellent problem-solving, communication ...

align with best practices and market trends What We’re Looking For Strong experience with OmniStudio (OmniScripts, Integration Procedures, Data Mappers) Proficiency in Apex , JavaScript , and Lightning Web Components Integration experience (Mulesoft/APIGEE/Connected Apps) beneficial Familiarity with automated testing tools (Provar, Selenium) desirable Excellent problem-solving, communication ...

internal use Implement basic automation and scheduling where needed Ensure security, performance, and accuracy across all data workflows Technical Skills Required Strong experience with JavaScript/TypeScript Experience with static site generation (Next.js, Gatsby, Astro, or similar) Proven experience building API scrapers (Axios, Puppeteer, BeautifulSoup, Cheerio, or similar) JSON structuring ...

ability to resolve complex technical issues and deliver solutions. Experience in Dynamics 365/PowerApps development and permissions management. Proficiency in C#, HTML5, CSS, JavaScript frameworks . Familiarity with Microsoft O365 services: Power Platform (Power Automate, Power BI) SharePoint Online Customer Voice OneDrive for Business Microsoft Teams Knowledge of Azure ...

relational databases such as MySQL, PostgreSQL, or SQL Server. Solid understanding of REST API development, integrations, and modern application architecture. Familiarity with JavaScript frameworks (e.g., Vue.js, React) and front-end best practices. Experience with Git, CI/CD pipelines, and automated deployment workflows. Exposure to cloud platforms (AWS preferred ...

manipulation and visualisation techniques. Qualifications: 1–7 years of professional software engineering experience. Strong academic background from a leading university. Deep experience with modern JavaScript frameworks (React preferred), TypeScript, and data visualisation tools. Proficiency in Python and familiarity with data workflows and backend frameworks (FastAPI/Flask). No sponsorship ...

manipulation and visualisation techniques. Qualifications: 1–7 years of professional software engineering experience. Strong academic background from a leading university. Deep experience with modern JavaScript frameworks (React preferred), TypeScript, and data visualisation tools. Proficiency in Python and familiarity with data workflows and backend frameworks (FastAPI/Flask). No sponsorship ...

practices in API development. Testing & Validation: Utilise Swagger and Postman for efficient REST API testing and validation. Development & Integration: Work with JSON, REST API, JavaScript, and PHP to enhance API functionality and user experience. Collaboration & Leadership: Partner with telecom domain experts to tailor API solutions for industry-specific needs. Provide ...

practices in API development. Testing & Validation: Utilise Swagger and Postman for efficient REST API testing and validation. Development & Integration: Work with JSON, REST API, JavaScript, and PHP to enhance API functionality and user experience. Collaboration & Leadership: Partner with telecom domain experts to tailor API solutions for industry-specific needs. Provide ...

OAuth, Cognito, OIDC (highly beneficial) Containerisation and orchestration (Docker, Kubernetes) DevOps/DevSecOps tooling and methodologies Proficiency in multiple programming languages such as JavaScript, Java, and Python ...

your track record is strong) Extensive hands-on use of PHP 8+, Python 3+, MySQL 8+ (PostgreSQL also welcome) Solid fundamentals in HTML, CSS, JavaScript and experience with Angular 18+ Comfort deploying and managing Unix-based servers, plus CI/CD and Git workflows A clear communicator who can work ...

your track record is strong) Extensive hands-on use of PHP 8+, Python 3+, MySQL 8+ (PostgreSQL also welcome) Solid fundamentals in HTML, CSS, JavaScript and experience with Angular 18+ Comfort deploying and managing Unix-based servers, plus CI/CD and Git workflows A clear communicator who can work ...

They’re looking for someone with the following: • Proven experience architecting and scaling B2B SaaS platforms • Strong full-stack technical expertise - especially across C#, JavaScript, and ideally React • Experience integrating with APIs and identity platforms such as Microsoft Entra ID/Azure AD • Solid understanding of cloud infrastructure - ideally Azure ...

They’re looking for someone with the following: • Proven experience architecting and scaling B2B SaaS platforms • Strong full-stack technical expertise - especially across C#, JavaScript, and ideally React • Experience integrating with APIs and identity platforms such as Microsoft Entra ID/Azure AD • Solid understanding of cloud infrastructure - ideally Azure ...

helpful but not required, and a willingness to learn Go is valued more than existing Go expertise. Key Technical Priorities Strong React expertise Deep JavaScript and TypeScript fundamentals Ability to work across the stack when needed Backed experience (Go, Java, C#, Python) Key Behavioural Priorities Proactively surfaces issues early Shares ...