651 to 675 of 1,251 ECMAScript Jobs in London

Skills: Proven experience in both manual and automated testing of complex financial systems In-depth knowledge of investment banking products, trade flows, and financial applications Expertise in SQL, Python, JavaScript, and test management tools such as XRAY and JIRA Strong analytical and problem-solving skills, with a track record of effective test coordination and stakeholder management Familiarity with ISTQB certification More ❯

Skills: Proven experience in both manual and automated testing of complex financial systems In-depth knowledge of investment banking products, trade flows, and financial applications Expertise in SQL, Python, JavaScript, and test management tools such as XRAY and JIRA Strong analytical and problem-solving skills, with a track record of effective test coordination and stakeholder management Familiarity with ISTQB certification More ❯

need may arise for step up above and beyond to get the job done. Skills and experience: 5+ years of professional experience as a software engineer. Ideally, experience with JavaScript/Typescript and GCP Strong system design experience. Able to explain architectural trade-offs. Strong backend development skills and experience designing resilient systems. Strong experience building secure and performant REST More ❯

Skills: Proven experience in both manual and automated testing of complex financial systems In-depth knowledge of investment banking products, trade flows, and financial applications Expertise in SQL, Python, JavaScript, and test management tools such as XRAY and JIRA Strong analytical and problem-solving skills, with a track record of effective test coordination and stakeholder management Familiarity with ISTQB certification More ❯

Skills: Proven experience in both manual and automated testing of complex financial systems In-depth knowledge of investment banking products, trade flows, and financial applications Expertise in SQL, Python, JavaScript, and test management tools such as XRAY and JIRA Strong analytical and problem-solving skills, with a track record of effective test coordination and stakeholder management Familiarity with ISTQB certification More ❯

of c.80 people. This is a key role in this small team and as such has broad requirements that balance current, hands on coding experience (C# back end and JavaScript/Angular front end) with architecture responsibilities and oversight of devops/infrastructure. There is also line responsibility for an offshore development team (currently 7 but includes leads). The More ❯

of c.80 people. This is a key role in this small team and as such has broad requirements that balance current, hands on coding experience (C# back end and JavaScript/Angular front end) with architecture responsibilities and oversight of devops/infrastructure. There is also line responsibility for an offshore development team (currently 7 but includes leads). The More ❯

of c.80 people. This is a key role in this small team and as such has broad requirements that balance current, hands on coding experience (C# back end and JavaScript/Angular front end) with architecture responsibilities and oversight of devops/infrastructure. There is also line responsibility for an offshore development team (currently 7 but includes leads). The More ❯

of c.80 people. This is a key role in this small team and as such has broad requirements that balance current, hands on coding experience (C# back end and JavaScript/Angular front end) with architecture responsibilities and oversight of devops/infrastructure. There is also line responsibility for an offshore development team (currently 7 but includes leads). The More ❯

for someone with a great attitude who is happy to go the extra mile. Skills and experience: 5+ years of professional experience as a software engineer. Ideally, experience with JavaScript/Typescript and GCP Strong system design experience. Able to explain architectural trade-offs. Strong backend development skills and experience designing resilient systems. Strong experience building secure and performant REST More ❯

for someone with a great attitude who is happy to go the extra mile. Skills and experience: 5+ years of professional experience as a software engineer. Ideally, experience with JavaScript/Typescript and GCP Strong system design experience. Able to explain architectural trade-offs. Strong backend development skills and experience designing resilient systems. Strong experience building secure and performant REST More ❯

certifications and ideally Certified Technical Architect (CTA). Experience across at least 3 product lines outside ITSM (e.g. ITOM, HRSD, CSM, SPM, SAM). Advanced scripting and integration skills (JavaScript, SQL, REST/SOAP APIs). Strong understanding of cloud platforms (AWS, Azure, GCP) and ServiceNow integrations. Experience operating in a Technical Design Authority capacity. Bonus: GenAI exposure, ITILv4 certification More ❯

UK - Hybrid, 3 days onsite in a week Duration: 6 months Contract Skills & Qualifications: Essential • 7 Years + professional experience using Adobe Data Collection and Adobe Analytics • HTML, CSS, JavaScript • Ability to work independently and drive projects • Knowledge of data visualization software like Tableau and PowerBI • Advanced Excel skills are required • Excellent written and verbal communication skills and strong attention More ❯

product and design teams to build intuitive, high-performing apps that help our users manage their money effortlessly. Essential skills: 3+ years of experience in React Native development. Strong JavaScript/TypeScript skills. Experience integrating with REST APIs and/or GraphQL. Familiarity with native mobile development (Swift, Objective-C, Java, or Kotlin) is a plus. Understanding of mobile UI More ❯

product and design teams to build intuitive, high-performing apps that help our users manage their money effortlessly. Essential skills: 3+ years of experience in React Native development. Strong JavaScript/TypeScript skills. Experience integrating with REST APIs and/or GraphQL. Familiarity with native mobile development (Swift, Objective-C, Java, or Kotlin) is a plus. Understanding of mobile UI More ❯

product and design teams to build intuitive, high-performing apps that help our users manage their money effortlessly. Essential skills: 3+ years of experience in React Native development. Strong JavaScript/TypeScript skills. Experience integrating with REST APIs and/or GraphQL. Familiarity with native mobile development (Swift, Objective-C, Java, or Kotlin) is a plus. Understanding of mobile UI More ❯

product and design teams to build intuitive, high-performing apps that help our users manage their money effortlessly. Essential skills: 3+ years of experience in React Native development. Strong JavaScript/TypeScript skills. Experience integrating with REST APIs and/or GraphQL. Familiarity with native mobile development (Swift, Objective-C, Java, or Kotlin) is a plus. Understanding of mobile UI More ❯

engineers upskill on GenAI relevant techniques and tools Technical Requirements 6+ years of development competency across a variety of languages, frameworks, and tooling, such as Python, R, Kubernetes, Kubeflow, JavaScript/JVM, Kafka 4+ years of years of experience in designing, developing, deploying, and monitoring machine learning and GenAI solutions 2+ years of experience in Application development, deployment, and monitoring More ❯

engineers upskill on GenAI relevant techniques and tools Technical Requirements 6+ years of development competency across a variety of languages, frameworks, and tooling, such as Python, R, Kubernetes, Kubeflow, JavaScript/JVM, Kafka 4+ years of years of experience in designing, developing, deploying, and monitoring machine learning and GenAI solutions 2+ years of experience in Application development, deployment, and monitoring More ❯

thinking and customer empathy What We’re Looking For: 2+ years of experience in a technical support, AdTech, or solutions engineering role Proven experience with web technologies : HTML, CSS, JavaScript, HTTP Comfortable working with SQL , APIs, browser debugging tools (e.g., Chrome DevTools) Strong understanding of digital advertising concepts — e.g., pixels, attribution, delivery, tag management Experience troubleshooting technical issues, escalating bugs More ❯

developers to identify and resolve potential issues early Designing detailed test plans, user scenarios and validation procedures Managing and configuring test environments and tools Executing manual and automated testing (JavaScript/TypeScript) Troubleshooting and validating new software releases, including end-user documentation Leading automation best practices and mentoring others on quality standards What You'll Bring: Experience in QA and More ❯

engineers upskill on GenAI relevant techniques and tools Technical Requirements 6+ years of development competency across a variety of languages, frameworks, and tooling, such as Python, R, Kubernetes, Kubeflow, JavaScript/JVM, Kafka 4+ years of years of experience in designing, developing, deploying, and monitoring machine learning and GenAI solutions 2+ years of experience in Application development, deployment, and monitoring More ❯

Ability to explain complex technical concepts to non-technical audiences Familiarity with advertising technologies (pixels, ad servers, auctions, delivery systems) Working knowledge of web technologies such as HTML, CSS, JavaScript, and HTTP Experience using SQL and RESTful APIs for data access or integrations Package: Day rate - £350-375pd PAYE Fully remote role 12-month contract More ❯

engineers upskill on GenAI relevant techniques and tools Technical Requirements 6+ years of development competency across a variety of languages, frameworks, and tooling, such as Python, R, Kubernetes, Kubeflow, JavaScript/JVM, Kafka 4+ years of years of experience in designing, developing, deploying, and monitoring machine learning and GenAI solutions 2+ years of experience in Application development, deployment, and monitoring More ❯

principles. Experience working in Agile or fast-paced team environments. Knowledge of responsive design techniques for various screen sizes and devices. Basic understanding of front-end development (HTML, CSS, JavaScript) is advantageous. The UI/UX Designer package: Up to £45,000 Bonus scheme Private medical cover Company pension Wider benefits package To hear more get in touch with Connor More ❯