1,251 to 1,275 of 1,324 ECMAScript Jobs in London

translate stakeholder goals into functional and technical requirements , ensuring clarity between business need and technical delivery. Design and develop intelligent, adaptive web platforms leveraging modern frameworks (React, TypeScript/JavaScript, CSS, AWS Amplify, GraphQL). Apply AI-assisted tooling and automation throughout the development lifecycle — from code generation and testing to deployment and optimisation. Lead innovation by evaluating and integrating … in accessibility, privacy, and performance while maintaining clean, modern, and secure codebases. What You’ll Bring Strong background in front-end and full-stack development using React, TypeScript/JavaScript, and modern cloud environments (AWS, GCP, or similar). Experience working with headless CMS platforms such as Storyblok, and strong understanding of API design (REST/GraphQL). Proven ability More ❯

contributes to open-source software (OSS). The ideal candidate will be a Software engineer or technical manager (hands-on or architecture exposure) and proficiency in modern programming (Python, JavaScript, Go, Java, etc and a solid understanding of CI/CD pipelines, DevSecOps workflows, and automated policy enforcement tools (e.g., Snyk, GitHub Actions, Jenkins, Sonatype, etc.). Knowledge of software … terms into enforceable technical and legal policies. Managing obligations that can lead to OSS license violations or forced code disclosure. Experience Needed Solid software engineering or technical management (Python, JavaScript, Go, or similar). Good understanding of software licensing, compliance, and IP principles. Experienced with legal, risk, and engineering teams in complex or regulated environments. Hands-on knowledge of CI More ❯

contributes to open-source software (OSS). The ideal candidate will be a Software engineer or technical manager (hands-on or architecture exposure) and proficiency in modern programming (Python, JavaScript, Go, Java, etc and a solid understanding of CI/CD pipelines, DevSecOps workflows, and automated policy enforcement tools (e.g., Snyk, GitHub Actions, Jenkins, Sonatype, etc.). Knowledge of software … terms into enforceable technical and legal policies. Managing obligations that can lead to OSS license violations or forced code disclosure. Experience Needed Solid software engineering or technical management (Python, JavaScript, Go, or similar). Good understanding of software licensing, compliance, and IP principles. Experienced with legal, risk, and engineering teams in complex or regulated environments. Hands-on knowledge of CI More ❯

contributes to open-source software (OSS). The ideal candidate will be a Software engineer or technical manager (hands-on or architecture exposure) and proficiency in modern programming (Python, JavaScript, Go, Java, etc and a solid understanding of CI/CD pipelines, DevSecOps workflows, and automated policy enforcement tools (e.g., Snyk, GitHub Actions, Jenkins, Sonatype, etc.). Knowledge of software … terms into enforceable technical and legal policies. Managing obligations that can lead to OSS license violations or forced code disclosure. Experience Needed Solid software engineering or technical management (Python, JavaScript, Go, or similar). Good understanding of software licensing, compliance, and IP principles. Experienced with legal, risk, and engineering teams in complex or regulated environments. Hands-on knowledge of CI More ❯

contributes to open-source software (OSS). The ideal candidate will be a Software engineer or technical manager (hands-on or architecture exposure) and proficiency in modern programming (Python, JavaScript, Go, Java, etc and a solid understanding of CI/CD pipelines, DevSecOps workflows, and automated policy enforcement tools (e.g., Snyk, GitHub Actions, Jenkins, Sonatype, etc.). Knowledge of software … terms into enforceable technical and legal policies. Managing obligations that can lead to OSS license violations or forced code disclosure. Experience Needed Solid software engineering or technical management (Python, JavaScript, Go, or similar). Good understanding of software licensing, compliance, and IP principles. Experienced with legal, risk, and engineering teams in complex or regulated environments. Hands-on knowledge of CI More ❯

Job Title: Power Platform Developer Location: Bristol (remote) Salary: up to £62,000 Peaple Talent are currently working alongside a worldclass research and development business in Bristol that are expanding and looking for a Power Platform Developer to join the More ❯

Job Title: Power Platform Developer Location: Bristol (remote) Salary: up to £62,000 Peaple Talent are currently working alongside a worldclass research and development business in Bristol that are expanding and looking for a Power Platform Developer to join the More ❯

FP&A Systems Consultant Permanent Location: UK - Fully Remote Salary: £65,000 - £80,000 (+ bonus) Skills: Unit4 FP&A, Database Administration (SQL Server or Oracle), T-SQL or PL/SQL, ETL Tools (e.g., SSIS), Microsoft Server Operating Systems More ❯

Job title: Full Stack Engineer (Scala/Javascript) Job type: Contract (B2B) Contract Length: 6-12 months Rate: £500-£625 per day inside IR35 (depending on experience) Role Location: London, UK (2 days a week onsite) The company: A leading household brand with over 5000 employees across the UK Role and Responsibilities : Signify have partnered up with a UK household … codebase and influence the technical roadmap in working on a nationwide product with millions of users. Job Requirements : Over 4 years experience in software engineering Experience with Scala and Javascript projects AWS is nice to have Strong communication skills Interview process: 1st stage interview, 2nd stage interview, Offer stage More ❯

Job title: Full Stack Engineer (Scala/Javascript) Job type: Contract (B2B) Contract Length: 6-12 months Rate: £500-£625 per day inside IR35 (depending on experience) Role Location: London, UK (2 days a week onsite) The company: A leading household brand with over 5000 employees across the UK Role and Responsibilities : Signify have partnered up with a UK household … codebase and influence the technical roadmap in working on a nationwide product with millions of users. Job Requirements : Over 4 years experience in software engineering Experience with Scala and Javascript projects AWS is nice to have Strong communication skills Interview process: 1st stage interview, 2nd stage interview, Offer stage More ❯

Job title: Full Stack Engineer (Scala/Javascript) Job type: Contract (B2B) Contract Length: 6-12 months Rate: £500-£625 per day inside IR35 (depending on experience) Role Location: London, UK (2 days a week onsite) The company: A leading household brand with over 5000 employees across the UK Role and Responsibilities : Signify have partnered up with a UK household … codebase and influence the technical roadmap in working on a nationwide product with millions of users. Job Requirements : Over 4 years experience in software engineering Experience with Scala and Javascript projects AWS is nice to have Strong communication skills Interview process: 1st stage interview, 2nd stage interview, Offer stage More ❯

Job title: Full Stack Engineer (Scala/Javascript) Job type: Contract (B2B) Contract Length: 6-12 months Rate: £500-£625 per day inside IR35 (depending on experience) Role Location: London, UK (2 days a week onsite) The company: A leading household brand with over 5000 employees across the UK Role and Responsibilities : Signify have partnered up with a UK household … codebase and influence the technical roadmap in working on a nationwide product with millions of users. Job Requirements : Over 4 years experience in software engineering Experience with Scala and Javascript projects AWS is nice to have Strong communication skills Interview process: 1st stage interview, 2nd stage interview, Offer stage More ❯

IR35 + SC Cleared role Key Skills: Proven experience in SAP Fiori/UI5 development and administration. Strong hands-on experience with SAP ABAP Proficiency in web technologies: HTML, JavaScript, and CSS. Contractor will carry out the following role and responsibilities: Collaborate with stakeholders to gather and analyse business requirements and translate them into technical specifications. Design, develop, and maintain … and training on SAP technologies Experience Required: Proven experience in SAP Fiori/UI5 development and administration. Strong hands-on experience with SAP ABAP Proficiency in web technologies: HTML, JavaScript, and CSS. If you'd like to discuss this developer role in more detail, please send your updated CV to and I will get in touch. More ❯

Software Developer, we're looking for someone who can support the client, editing and writing test scripts in Selenium/Appium and who has a basic understanding of Java, JavaScript or Python. Risk Mitigation : You'll be able to address Risk from an early stage, helping create action plans to reduce this risk, which in turn improves Customer Retention . … the customer and help them along their journey, allowing them to hit their customer goals and milestones, providing a good ROI. Tech experience required : Software development experience using Java, JavaScript, Python, C Sharp CI/Automation Technologies such as Appium, Selenium, Jenkins, Maven, TestNG, JMeter If the above sounds like you and you're excited about joining a global engineering More ❯

Software Developer, we're looking for someone who can support the client, editing and writing test scripts in Selenium/Appium and who has a basic understanding of Java, JavaScript or Python. Risk Mitigation : You'll be able to address Risk from an early stage, helping create action plans to reduce this risk, which in turn improves Customer Retention . … the customer and help them along their journey, allowing them to hit their customer goals and milestones, providing a good ROI. Tech experience required : Software development experience using Java, JavaScript, Python, C Sharp CI/Automation Technologies such as Appium, Selenium, Jenkins, Maven, TestNG, JMeter If the above sounds like you and you're excited about joining a global engineering More ❯

Software Developer, we're looking for someone who can support the client, editing and writing test scripts in Selenium/Appium and who has a basic understanding of Java, JavaScript or Python. Risk Mitigation : You'll be able to address Risk from an early stage, helping create action plans to reduce this risk, which in turn improves Customer Retention . … the customer and help them along their journey, allowing them to hit their customer goals and milestones, providing a good ROI. Tech experience required : Software development experience using Java, JavaScript, Python, C Sharp CI/Automation Technologies such as Appium, Selenium, Jenkins, Maven, TestNG, JMeter If the above sounds like you and you're excited about joining a global engineering More ❯

Software Developer, we're looking for someone who can support the client, editing and writing test scripts in Selenium/Appium and who has a basic understanding of Java, JavaScript or Python. Risk Mitigation : You'll be able to address Risk from an early stage, helping create action plans to reduce this risk, which in turn improves Customer Retention . … the customer and help them along their journey, allowing them to hit their customer goals and milestones, providing a good ROI. Tech experience required : Software development experience using Java, JavaScript, Python, C Sharp CI/Automation Technologies such as Appium, Selenium, Jenkins, Maven, TestNG, JMeter If the above sounds like you and you're excited about joining a global engineering More ❯

Job Title: Test Automation Engineer (Front end & API) Sector: Test consultancy specialising in financial services Essential Skills: Playwright (Typescript or JavaScript) and API Automation Location: Primarily remote with c1 day per month in the consultancy office in Berkshire & client visits when requested Salary: £45-50,000/annum + benefits Start Date: We require someone to start immediately Saffron QA … and demoing solutions to clients. We are looking for a candidate with the following experience; Proven experience and ability to create test automation frameworks from scratch using Playwright and JavaScript or Typescript. Experience of designing API automation solutions Develop CI Test Pipeline on the creation, maintenance, and improvement of CI tools such as MS Azure, Jenkins, GitHub Actions. Experience working More ❯

Job Title: Test Automation Engineer (Front end & API) Sector: Test consultancy specialising in financial services Essential Skills: Playwright (Typescript or JavaScript) and API Automation Location: Primarily remote with c1 day per month in the consultancy office in Berkshire & client visits when requested Salary: £45-50,000/annum + benefits Start Date: We require someone to start immediately Saffron QA … and demoing solutions to clients. We are looking for a candidate with the following experience; Proven experience and ability to create test automation frameworks from scratch using Playwright and JavaScript or Typescript. Experience of designing API automation solutions Develop CI Test Pipeline on the creation, maintenance, and improvement of CI tools such as MS Azure, Jenkins, GitHub Actions. Experience working More ❯

Job Title: Test Automation Engineer (Front end & API) Sector: Test consultancy specialising in financial services Essential Skills: Playwright (Typescript or JavaScript) and API Automation Location: Primarily remote with c1 day per month in the consultancy office in Berkshire & client visits when requested Salary: £45-50,000/annum + benefits Start Date: We require someone to start immediately Saffron QA … and demoing solutions to clients. We are looking for a candidate with the following experience; Proven experience and ability to create test automation frameworks from scratch using Playwright and JavaScript or Typescript. Experience of designing API automation solutions Develop CI Test Pipeline on the creation, maintenance, and improvement of CI tools such as MS Azure, Jenkins, GitHub Actions. Experience working More ❯

Job Title: Test Automation Engineer (Front end & API) Sector: Test consultancy specialising in financial services Essential Skills: Playwright (Typescript or JavaScript) and API Automation Location: Primarily remote with c1 day per month in the consultancy office in Berkshire & client visits when requested Salary: £45-50,000/annum + benefits Start Date: We require someone to start immediately Saffron QA … and demoing solutions to clients. We are looking for a candidate with the following experience; Proven experience and ability to create test automation frameworks from scratch using Playwright and JavaScript or Typescript. Experience of designing API automation solutions Develop CI Test Pipeline on the creation, maintenance, and improvement of CI tools such as MS Azure, Jenkins, GitHub Actions. Experience working More ❯

You Will Do Deliver accurate, high-quality GIS solutions and project outputs Lead on drone, LiDAR and 3D modelling data projects Develop AI-driven tools and workflows using Python, JavaScript and SQL Integrate GIS with other platforms to enhance project outcomes Mentor peers, share expertise and support team growth Contribute to proposals and bids that shape our future pipeline What … You Will Bring Proven experience processing photogrammetry and LiDAR data into 3D GIS models Strong programming skills (Python, JavaScript, SQL) with the ability to create AI-driven GIS solutions Proven experience in GIS Proficiency with QGIS, ESRI ArcGIS Pro, ArcEnterprise, AGOL and FME Strong GIS data management and workflow optimisation skills Excellent communication and teamwork abilities Desirable Master’s degree More ❯

You Will Do Deliver accurate, high-quality GIS solutions and project outputs Lead on drone, LiDAR and 3D modelling data projects Develop AI-driven tools and workflows using Python, JavaScript and SQL Integrate GIS with other platforms to enhance project outcomes Mentor peers, share expertise and support team growth Contribute to proposals and bids that shape our future pipeline What … You Will Bring Proven experience processing photogrammetry and LiDAR data into 3D GIS models Strong programming skills (Python, JavaScript, SQL) with the ability to create AI-driven GIS solutions Proven experience in GIS Proficiency with QGIS, ESRI ArcGIS Pro, ArcEnterprise, AGOL and FME Strong GIS data management and workflow optimisation skills Excellent communication and teamwork abilities Desirable Master’s degree More ❯

Job Title: Test Automation Engineer (Front end & API) Sector: Test consultancy specialising in financial services Essential Skills: Playwright (Typescript or JavaScript) and API Automation Location: Primarily remote with c1 day per month in the consultancy office in Berkshire & client visits when requested Salary: £45-50,000/annum + benefits Start Date: We require someone to start immediately Saffron QA … and demoing solutions to clients. We are looking for a candidate with the following experience; Proven experience and ability to create test automation frameworks from scratch using Playwright and JavaScript or Typescript. Experience of designing API automation solutions Develop CI Test Pipeline on the creation, maintenance, and improvement of CI tools such as MS Azure, Jenkins, GitHub Actions. Experience working More ❯

You Will Do Deliver accurate, high-quality GIS solutions and project outputs Lead on drone, LiDAR and 3D modelling data projects Develop AI-driven tools and workflows using Python, JavaScript and SQL Integrate GIS with other platforms to enhance project outcomes Mentor peers, share expertise and support team growth Contribute to proposals and bids that shape our future pipeline What … You Will Bring Proven experience processing photogrammetry and LiDAR data into 3D GIS models Strong programming skills (Python, JavaScript, SQL) with the ability to create AI-driven GIS solutions Proven experience in GIS Proficiency with QGIS, ESRI ArcGIS Pro, ArcEnterprise, AGOL and FME Strong GIS data management and workflow optimisation skills Excellent communication and teamwork abilities Desirable Master’s degree More ❯