601 to 625 of 1,246 ECMAScript Jobs in London

of hands-on experience in IT Operations, including IT asset lifecycle management, infrastructure (networking, servers), and IT Helpdesk Demonstrable development/scripting skills in at least one language (Python, JavaScript, C#) Proven experience building solutions with the Microsoft Power Platform Familiarity with Azure or AWS A strong interest in AI/LLMs. Practical experience with Dify, or building RAG applications More ❯

of hands-on experience in IT Operations, including IT asset lifecycle management, infrastructure (networking, servers), and IT Helpdesk Demonstrable development/scripting skills in at least one language (Python, JavaScript, C#) Proven experience building solutions with the Microsoft Power Platform Familiarity with Azure or AWS A strong interest in AI/LLMs. Practical experience with Dify, or building RAG applications More ❯

least 5 ServiceNow CIS certifications . Proficiency across multiple ServiceNow product lines beyond ITSM (e.g. ITOM, ITAM, HR, CSM, SPM, HAM/SAM). Strong scripting and integration skills - JavaScript, SQL, API/Web Services . Experience integrating ServiceNow with cloud platforms such as AWS, Azure, or GCP. Proven ability to operate as a Technical Design Authority and influence key More ❯

emerging Front End technologies and AI applications to advance demonstration methodologies Provide technical mentorship and elevate engineering standards across the solutions team What you'll Bring Demonstrated expertise in JavaScript/TypeScript, React, and Next.js with production deployment experience Professional background implementing or integrating headless CMS or eCommerce solutions Proficiency building API integrations (REST/GraphQL) within enterprise architectures Strong More ❯

landscapes. Excellent communication skills to engage and influence technical and non-technical stakeholders. A passion for technology and testing, staying ahead of trends in areas such as continuous delivery, JavaScript-based testing tools, microservices, containerization, and DevOps practices. Exceptional understanding of modern testing techniques, tools, and technologies. Whats in It for You? Holidays: 25 days annual leave (plus an extra More ❯

architecture, and mobile-first layouts 💻 Front-End Collaboration Build or support building responsive layouts with HTML/CSS Work with Tailwind, Bootstrap, or similar frameworks Read/modify simple JavaScript for interaction and feedback Use Git for version control and inspect/debug browser UI issues Work side-by-side with a Full Stack Developer who builds your designs in More ❯

architecture, and mobile-first layouts 💻 Front-End Collaboration Build or support building responsive layouts with HTML/CSS Work with Tailwind, Bootstrap, or similar frameworks Read/modify simple JavaScript for interaction and feedback Use Git for version control and inspect/debug browser UI issues Work side-by-side with a Full Stack Developer who builds your designs in More ❯

architecture, and mobile-first layouts 💻 Front-End Collaboration Build or support building responsive layouts with HTML/CSS Work with Tailwind, Bootstrap, or similar frameworks Read/modify simple JavaScript for interaction and feedback Use Git for version control and inspect/debug browser UI issues Work side-by-side with a Full Stack Developer who builds your designs in More ❯

SOAP APIs or middleware (e.g. MuleSoft). Hands-on experience with Experience Cloud customisation and configuration. Strong knowledge of Salesforce security, governor limits, and performance best practices. Proficiency in JavaScript and building custom UIs on the Lightning platform. Familiarity with code versioning (Bitbucket/Git) and project tracking tools (JIRA/Confluence). Salesforce certifications - Platform Developer I essential, Developer More ❯

architecture, and mobile-first layouts Front-End Collaboration Build or support building responsive layouts with HTML/CSS Work with Tailwind, Bootstrap, or similar frameworks Read/modify simple JavaScript for interaction and feedback Use Git for version control and inspect/debug browser UI issues Work side-by-side with a Full Stack Developer who builds your designs in More ❯

culture that values different perspectives, encourages career growth, and supports work-life balance. Tech environment (not required, just context for a tech agnostic individual at this level) Node.js/JavaScript Go, Python (selective use) Docker, Terraform GitLab Google Cloud (GCE, Cloud Run, BigQuery, Composer, ...) LLM (VertexAI) n8n Cavendish (Recruitment) Professionals Ltd are proud to be an equal opportunity employer More ❯

culture that values different perspectives, encourages career growth, and supports work-life balance. Tech environment (not required, just context for a tech agnostic individual at this level) Node.js/JavaScript Go, Python (selective use) Docker, Terraform GitLab Google Cloud (GCE, Cloud Run, BigQuery, Composer, ...) LLM (VertexAI) n8n Cavendish (Recruitment) Professionals Ltd are proud to be an equal opportunity employer More ❯

escalations. • Maintain basic network and Wi-Fi troubleshooting capability. Skills & Experience Essential: • 2–4 years’ experience as a Shopify Developer (Shopify Plus experience a bonus). • Strong HTML, CSS, JavaScript, Liquid templating, and Shopify CLI skills. • Experience integrating third-party apps and APIs into Shopify. • Ability to work with and manage external development teams, including understanding version control, branching, and More ❯

escalations. • Maintain basic network and Wi-Fi troubleshooting capability. Skills & Experience Essential: • 2–4 years’ experience as a Shopify Developer (Shopify Plus experience a bonus). • Strong HTML, CSS, JavaScript, Liquid templating, and Shopify CLI skills. • Experience integrating third-party apps and APIs into Shopify. • Ability to work with and manage external development teams, including understanding version control, branching, and More ❯

escalations. • Maintain basic network and Wi-Fi troubleshooting capability. Skills & Experience Essential: • 2–4 years’ experience as a Shopify Developer (Shopify Plus experience a bonus). • Strong HTML, CSS, JavaScript, Liquid templating, and Shopify CLI skills. • Experience integrating third-party apps and APIs into Shopify. • Ability to work with and manage external development teams, including understanding version control, branching, and More ❯

escalations. • Maintain basic network and Wi-Fi troubleshooting capability. Skills & Experience Essential: • 2–4 years’ experience as a Shopify Developer (Shopify Plus experience a bonus). • Strong HTML, CSS, JavaScript, Liquid templating, and Shopify CLI skills. • Experience integrating third-party apps and APIs into Shopify. • Ability to work with and manage external development teams, including understanding version control, branching, and More ❯

warehousing solution preferrably Snowflake. Excellent data modelling and analytics techniques preferrably dbt (for transforming raw data into meaningful insights within modern data warehouses) Strong Python and SQL coding skills. JavaScript is a plus but not required. Experience implementing development best practices including writing automated testing and CI/CD deployment. Responsibilities : Build and maintain reliable data pipelines and ETL processes More ❯

warehousing solution preferrably Snowflake. Excellent data modelling and analytics techniques preferrably dbt (for transforming raw data into meaningful insights within modern data warehouses) Strong Python and SQL coding skills. JavaScript is a plus but not required. Experience implementing development best practices including writing automated testing and CI/CD deployment. Responsibilities : Build and maintain reliable data pipelines and ETL processes More ❯

warehousing solution preferrably Snowflake. Excellent data modelling and analytics techniques preferrably dbt (for transforming raw data into meaningful insights within modern data warehouses) Strong Python and SQL coding skills. JavaScript is a plus but not required. Experience implementing development best practices including writing automated testing and CI/CD deployment. Responsibilities : Build and maintain reliable data pipelines and ETL processes More ❯

warehousing solution preferrably Snowflake. Excellent data modelling and analytics techniques preferrably dbt (for transforming raw data into meaningful insights within modern data warehouses) Strong Python and SQL coding skills. JavaScript is a plus but not required. Experience implementing development best practices including writing automated testing and CI/CD deployment. Responsibilities : Build and maintain reliable data pipelines and ETL processes More ❯

with experience in a technical lead role Experience developing large-scale business-critical SaaS applications In-depth knowledge of the React and React Native frameworks Excellent programming skills in JavaScript, preferably with TypeScript and GraphQL experience A good understanding of the Android and iOS platforms Experience with frontend testing frameworks Familiarity with modern front-end build pipelines and tooling Understanding More ❯

with experience in a technical lead role Experience developing large-scale business-critical SaaS applications In-depth knowledge of the React and React Native frameworks Excellent programming skills in JavaScript, preferably with TypeScript and GraphQL experience A good understanding of the Android and iOS platforms Experience with frontend testing frameworks Familiarity with modern front-end build pipelines and tooling Understanding More ❯

with experience in a technical lead role Experience developing large-scale business-critical SaaS applications In-depth knowledge of the React and React Native frameworks Excellent programming skills in JavaScript, preferably with TypeScript and GraphQL experience A good understanding of the Android and iOS platforms Experience with frontend testing frameworks Familiarity with modern front-end build pipelines and tooling Understanding More ❯

with experience in a technical lead role Experience developing large-scale business-critical SaaS applications In-depth knowledge of the React and React Native frameworks Excellent programming skills in JavaScript, preferably with TypeScript and GraphQL experience A good understanding of the Android and iOS platforms Experience with frontend testing frameworks Familiarity with modern front-end build pipelines and tooling Understanding More ❯

Contribute to design discussions and provide technical input on feasibility and implementation Continuously improve app retention and engagement through thoughtful UX improvements Requirements Technical Expertise: Expert-level proficiency in JavaScript and relevant frameworks such as Next.js Design Sensibility: Demonstrated passion for exceptional UI/UX design, animations, and micro-interactions Mobile Development: React Native experience would be helpful, but is More ❯