426 to 450 of 1,292 ECMAScript Jobs in London

solving complex challenges, and want to be part of a rocket-ship fintech with massive growth potential — this is your opportunity. What You’ll Bring: Full-stack engineering experience (JavaScript, TypeScript, Python, React, Node, etc.) Excellent communication and client-facing ability Top academic background (STEM, Computer Science, or equivalent) Drive, adaptability, and passion for technology What’s on Offer: 💰 Competitive More ❯

solving complex challenges, and want to be part of a rocket-ship fintech with massive growth potential — this is your opportunity. What You’ll Bring: Full-stack engineering experience (JavaScript, TypeScript, Python, React, Node, etc.) Excellent communication and client-facing ability Top academic background (STEM, Computer Science, or equivalent) Drive, adaptability, and passion for technology What’s on Offer: 💰 Competitive More ❯

solving complex challenges, and want to be part of a rocket-ship fintech with massive growth potential — this is your opportunity. What You’ll Bring: Full-stack engineering experience (JavaScript, TypeScript, Python, React, Node, etc.) Excellent communication and client-facing ability Top academic background (STEM, Computer Science, or equivalent) Drive, adaptability, and passion for technology What’s on Offer: 💰 Competitive More ❯

solving complex challenges, and want to be part of a rocket-ship fintech with massive growth potential — this is your opportunity. What You’ll Bring: Full-stack engineering experience (JavaScript, TypeScript, Python, React, Node, etc.) Excellent communication and client-facing ability Top academic background (STEM, Computer Science, or equivalent) Drive, adaptability, and passion for technology What’s on Offer: 💰 Competitive More ❯

leading product development and architecting solutions. Demonstrated expertise in scaling and managing production systems. Provides comprehensive technical development support, both broad and detailed. Highly proficient in: Python, Java, Spring, JavaScript, Vue, Elasticsearch, PostgreSQL, cloud computing (AWS, Azure), Terraform, ML, GitHub Actions, Jenkins, and Linux. Responsibilities: Own the technical roadmap , aligning it with the product strategy to achieve key business objectives. More ❯

leading product development and architecting solutions. Demonstrated expertise in scaling and managing production systems. Provides comprehensive technical development support, both broad and detailed. Highly proficient in: Python, Java, Spring, JavaScript, Vue, Elasticsearch, PostgreSQL, cloud computing (AWS, Azure), Terraform, ML, GitHub Actions, Jenkins, and Linux. Responsibilities: Own the technical roadmap , aligning it with the product strategy to achieve key business objectives. More ❯

leading product development and architecting solutions. Demonstrated expertise in scaling and managing production systems. Provides comprehensive technical development support, both broad and detailed. Highly proficient in: Python, Java, Spring, JavaScript, Vue, Elasticsearch, PostgreSQL, cloud computing (AWS, Azure), Terraform, ML, GitHub Actions, Jenkins, and Linux. Responsibilities: Own the technical roadmap , aligning it with the product strategy to achieve key business objectives. More ❯

large datasets, leveraging efficient data 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 available – candidates must have the More ❯

large datasets, leveraging efficient data 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 available – candidates must have the More ❯

large datasets, leveraging efficient data 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 available – candidates must have the More ❯

leading product development and architecting solutions. Demonstrated expertise in scaling and managing production systems. Provides comprehensive technical development support, both broad and detailed. Highly proficient in: Python, Java, Spring, JavaScript, Vue, Elasticsearch, PostgreSQL, cloud computing (AWS, Azure), Terraform, ML, GitHub Actions, Jenkins, and Linux. Responsibilities: Own the technical roadmap, aligning it with the product strategy to achieve key business objectives. More ❯

large datasets, leveraging efficient data 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 available – candidates must have the More ❯

BI, DAX, Power Query, and data modeling. Knowledge of SharePoint, Microsoft Teams, Azure Logic Apps, and Microsoft 365 ecosystem. Experience with JSON, REST APIs, and scripting (e.g., PowerShell or JavaScript). Familiarity with Agile methodologies and DevOps practices. Excellent problem-solving, communication, and interpersonal skills. Preferred Qualifications: Microsoft Certified: Power Platform App Maker Associate or higher. Experience with CI/ More ❯

BI, DAX, Power Query, and data modeling. Knowledge of SharePoint, Microsoft Teams, Azure Logic Apps, and Microsoft 365 ecosystem. Experience with JSON, REST APIs, and scripting (e.g., PowerShell or JavaScript). Familiarity with Agile methodologies and DevOps practices. Excellent problem-solving, communication, and interpersonal skills. Preferred Qualifications: Microsoft Certified: Power Platform App Maker Associate or higher. Experience with CI/ More ❯

BI, DAX, Power Query, and data modeling. Knowledge of SharePoint, Microsoft Teams, Azure Logic Apps, and Microsoft 365 ecosystem. Experience with JSON, REST APIs, and scripting (e.g., PowerShell or JavaScript). Familiarity with Agile methodologies and DevOps practices. Excellent problem-solving, communication, and interpersonal skills. Preferred Qualifications: Microsoft Certified: Power Platform App Maker Associate or higher. Experience with CI/ More ❯

BI, DAX, Power Query, and data modeling. Knowledge of SharePoint, Microsoft Teams, Azure Logic Apps, and Microsoft 365 ecosystem. Experience with JSON, REST APIs, and scripting (e.g., PowerShell or JavaScript). Familiarity with Agile methodologies and DevOps practices. Excellent problem-solving, communication, and interpersonal skills. Preferred Qualifications: Microsoft Certified: Power Platform App Maker Associate or higher. Experience with CI/ More ❯

on” work: everything is about edge, speed, and better decisions. Top of the market compensation. High visibility. High expectations. No bureaucracy. Core requirements Expert-level proficiency in Python and JavaScript/TypeScript/React. 3+ years’ professional software engineering experience. Strong CS fundamentals (data structures, algorithms, performance). Comfortable building for live, data-heavy, real-time environments. Sharp communicator who More ❯

on” work: everything is about edge, speed, and better decisions. Top of the market compensation. High visibility. High expectations. No bureaucracy. Core requirements Expert-level proficiency in Python and JavaScript/TypeScript/React. 3+ years’ professional software engineering experience. Strong CS fundamentals (data structures, algorithms, performance). Comfortable building for live, data-heavy, real-time environments. Sharp communicator who More ❯

on work: everything is about edge, speed, and better decisions. Top of the market compensation. High visibility. High expectations. No bureaucracy. Core requirements Expert-level proficiency in Python and JavaScript/TypeScript/React. 3+ years professional software engineering experience. Strong CS fundamentals (data structures, algorithms, performance). Comfortable building for live, data-heavy, real-time environments. Sharp communicator whos More ❯

on work: everything is about edge, speed, and better decisions. Top of the market compensation. High visibility. High expectations. No bureaucracy. Core requirements Expert-level proficiency in Python and JavaScript/TypeScript/React. 3+ years professional software engineering experience. Strong CS fundamentals (data structures, algorithms, performance). Comfortable building for live, data-heavy, real-time environments. Sharp communicator whos More ❯

administration, or consulting roles. - Strong proficiency in SharePoint Online, SharePoint 2016/2019, and Office 365. - Expertise in SharePoint Framework (SPFx), PowerShell, REST APIs, and SharePoint Designer. - Proficiency in JavaScript, C#, HTML/CSS, and SQL Server for custom development and integration. - Experience with document management best practises, including metadata tagging, version control, and retention policies. - Familiarity with AI integration More ❯

workflows. Champion Ethical AI: Ensure your agents comply with regulations (GDPR, financial compliance) and guard against bias, hallucinations, and misuse. What You Bring Technical Mastery: Strong skills in Python, JavaScript, or similar languages. LLM & Agent Expertise: Hands-on experience with LLMs (OpenAI, Anthropic, Mistral) and agent frameworks. Advanced Tools: Familiarity with vector databases, RAG pipelines, prompt engineering, REST APIs, cloud More ❯

Networking/TCP/Firewalls/Certs Observability champion, experience of designing and building monitoring and logging tools such as CloudWatch, ELK, and Grafana Strong scripting skills in Bash, JavaScript or similar knowledge of SecDevOps security best practices and experience implementing security controls in a cloud environment including SIEM, Guard Duty, Shield, Inspector and Security Hub Experience with CI/ More ❯

Networking/TCP/Firewalls/Certs Observability champion, experience of designing and building monitoring and logging tools such as CloudWatch, ELK, and Grafana Strong scripting skills in Bash, JavaScript or similar knowledge of SecDevOps security best practices and experience implementing security controls in a cloud environment including SIEM, Guard Duty, Shield, Inspector and Security Hub Experience with CI/ More ❯

Networking/TCP/Firewalls/Certs Observability champion, experience of designing and building monitoring and logging tools such as CloudWatch, ELK, and Grafana Strong scripting skills in Bash, JavaScript or similar knowledge of SecDevOps security best practices and experience implementing security controls in a cloud environment including SIEM, Guard Duty, Shield, Inspector and Security Hub Experience with CI/ More ❯