276 to 300 of 455 JavaScript Jobs in the City of London

of conversion to FTE depending on performance and budget. Your Profile: Good knowledge of object-oriented programming (e.g., Java). Familiarity with web application stacks. Experience with scripting languages: JavaScript, Python, Perl, Unix/Windows Shell. Understanding of Linux/Unix systems. Experience with relational databases (e.g., MySQL, Oracle). Interested? Next Steps... If you're ready to make an More ❯

of conversion to FTE depending on performance and budget. Your Profile: Good knowledge of object-oriented programming (e.g., Java). Familiarity with web application stacks. Experience with scripting languages: JavaScript, Python, Perl, Unix/Windows Shell. Understanding of Linux/Unix systems. Experience with relational databases (e.g., MySQL, Oracle). Interested? Next Steps... If you're ready to make an More ❯

to non-technical audiences. Experience of using advertising technologies such as pixels, ad servers, auctions and delivery. Experience working with web technologies, including, but not limited to: HTML, CSS, JavaScript, HTTP. Experience working with SQL and RESTful APIs More ❯

understanding of ServiceNow upgrade/refresh processes. Experience with ITSM, ITOM, CMDB, and custom applications within ServiceNow. Familiarity with ServiceNow clone management and instance synchronization. Knowledge of ServiceNow scripting (JavaScript, Glide API) a plus. Excellent problem-solving, documentation, and communication skills. ServiceNow CSA or CIS certification preferred. More ❯

AWS infrastructure. Essential Skills Demonstrable experience of using a dynamic language such as Ruby RDBMS experience (such as MySQL or PostgreSQL) Some experience, or a desire to work, with JavaScript Some experience with Linux and/or Mac OS command line Experience using a source control system such as Git Familiarity with unit testing or functional testing frameworks Ability to More ❯

regular code reviews Pair with colleagues to share your knowledge Requirements 5+ years of commercial development experience Strong background in PHP Experience with Laravel or similar frameworks Confident in JavaScript, ideally Vue.js Knowledge of API development Experience with containerisation – Docker or Kubernetes Knowledge of system design and Architecture Understanding of AWS or other cloud based technologies is advantageous Ideally have More ❯

regular code reviews Pair with colleagues to share your knowledge Requirements 5+ years of commercial development experience Strong background in PHP Experience with Laravel or similar frameworks Confident in JavaScript, ideally Vue.js Knowledge of API development Experience with containerisation – Docker or Kubernetes Knowledge of system design and Architecture Understanding of AWS or other cloud based technologies is advantageous Ideally have More ❯

quality creative and technical solutions. Balance creativity with functionality, ensuring designs not only look great but work seamlessly. What they’re looking for: Strong knowledge of HTML, CSS, and JavaScript (and ideally some back-end experience). Solid design skills across digital and graphic formats, with a good understanding of layout, typography, and UI/UX. Someone who enjoys collaborating More ❯

quality creative and technical solutions. Balance creativity with functionality, ensuring designs not only look great but work seamlessly. What they’re looking for: Strong knowledge of HTML, CSS, and JavaScript (and ideally some back-end experience). Solid design skills across digital and graphic formats, with a good understanding of layout, typography, and UI/UX. Someone who enjoys collaborating More ❯

a modern, agile delivery model. Practical experience using Cypress or Playwright as core tooling for web UI + functional validation. Strong, hands-on background building and scaling automation in JavaScript/TypeScript based frameworks. Solid grounding in API testing, data validation, and the patterns/heuristics that make those reliable. Comfortable working within contemporary CI/CD ecosystem Interview Process More ❯

adoption Candidate Profile Strong experience with LLMs (e.g. GPT, Claude, LLaMA) and prompt engineering Hands-on integration with tools such as LangChain, LlamaIndex, or similar Proficiency in Python or JavaScript for building prototypes and integrations Familiarity with automation platforms (UiPath, Power Automate, Zapier, n8n) Knowledge of vector databases and embeddings for RAG pipelines Excellent communication skills to translate business problems More ❯

campaign briefs and interpret requirements effectively. Strong understanding of digital marketing principles, particularly in email, SMS, and push channels. Experience in IP Warming Advantageous but not essential Knowledge of JavaScript, Liquid script, AMPscript, HTML, and CSS. (Bonus not a must have), Proficiency in data querying (SQL). Experience with other marketing tools like Adobe Target, Litmus, Google Analytics, Taxi, Moveable More ❯

product leadership within fintech, trading, or other regulated financial environments. Strong understanding of internal systems supporting compliance, risk, and operational functions. Technical fluency, able to review code (Python or JavaScript) and engage confidently with engineering teams. Experience with low-code/no-code solutions is advantageous. Excellent communication and stakeholder management skills; comfortable working cross-functionally. Strategic, entrepreneurial mindset with More ❯

Understanding of relational databases or CRM Systems - Experience working in a consultancy environment would be ideal - Experience working with project based work - Skills in SQL, HTML, CSS, SSRS and JavaScript REF: AR124084 Tiger is B Corp Certified. We are part of a global movement of businesses committed to improving social and environmental conditions around the world. More ❯

product leadership within fintech, trading, or other regulated financial environments. Strong understanding of internal systems supporting compliance, risk, and operational functions. Technical fluency, able to review code (Python or JavaScript) and engage confidently with engineering teams. Experience with low-code/no-code solutions is advantageous. Excellent communication and stakeholder management skills; comfortable working cross-functionally. Strategic, entrepreneurial mindset with More ❯

ability to clearly explain technical solutions to non-technical audiences Bonus Points For: Experience with Intapp Intake and Conflicts solutions Building integrated solutions using REST APIs Working knowledge of JavaScript Familiarity with Boomi automation platforms Understanding of Know Your Client (KYC) data including corporate hierarchies, directors, shareholders and related parties Background working in a law firm environment with exposure to More ❯

of frontend performance, accessibility, and interactivity. Write and maintain comprehensive unit and end-to-end tests to ensure reliability at scale. You should have Strong experience with TypeScript/JavaScript and modern frameworks (React or similar). A proven track record of delivering polished, performant, and elegant user interfaces. Deep appreciation for UI/UX craftsmanship and accessibility. Familiarity with More ❯

ability to clearly explain technical solutions to non-technical audiences Bonus Points For: Experience with Intapp Intake and Conflicts solutions Building integrated solutions using REST APIs Working knowledge of JavaScript Familiarity with Boomi automation platforms Understanding of Know Your Client (KYC) data including corporate hierarchies, directors, shareholders and related parties Background working in a law firm environment with exposure to More ❯

of frontend performance, accessibility, and interactivity. Write and maintain comprehensive unit and end-to-end tests to ensure reliability at scale. You should have Strong experience with TypeScript/JavaScript and modern frameworks (React or similar). A proven track record of delivering polished, performant, and elegant user interfaces. Deep appreciation for UI/UX craftsmanship and accessibility. Familiarity with More ❯

structure, and internal linking. Support ongoing technical SEO audits and accessibility improvements. Create and enhance digital imagery and layouts using Canva or Photoshop. Requirements: Proficiency in HTML, CSS, and JavaScript would be preferred. Proven experience customising Shopify themes beyond page builders. Understanding of conversion rate optimisation (CRO) strategies and tools. Excellent eye for design, user experience, and detail. Familiarity with More ❯

structure, and internal linking. Support ongoing technical SEO audits and accessibility improvements. Create and enhance digital imagery and layouts using Canva or Photoshop. Requirements: Proficiency in HTML, CSS, and JavaScript would be preferred. Proven experience customising Shopify themes beyond page builders. Understanding of conversion rate optimisation (CRO) strategies and tools. Excellent eye for design, user experience, and detail. Familiarity with More ❯

ServiceNow. Skills required: Certified ServiceNow IRM/SecOps administrator/consultant (this is mandatory) Must have concluded at least 1 lifecycle of ServiceNow IRM/SecOps implementation. Experience in JavaScript, API, Web Services Working knowledge of Vulnerability Mgmt. process & tools ISO/CISA/CISM/CISSP/CRICS (preferred) Platform expertise required: ServiceNow GRC & SecOps. More ❯

ServiceNow. Skills required: Certified ServiceNow IRM/SecOps administrator/consultant (this is mandatory) Must have concluded at least 1 lifecycle of ServiceNow IRM/SecOps implementation. Experience in JavaScript, API, Web Services Working knowledge of Vulnerability Mgmt. process & tools ISO/CISA/CISM/CISSP/CRICS (preferred) Platform expertise required: ServiceNow GRC & SecOps. More ❯

responsive design. Collaborative mindset and openness to feedback. Strong organisational skills with the ability to work on multiple tasks. Basic knowledge of front-end technologies (HTML/CSS/JavaScript) is desirable. Previous experience is Contentsquare and or Dynamic Yield is desirable. More ❯

responsive design. Collaborative mindset and openness to feedback. Strong organisational skills with the ability to work on multiple tasks. Basic knowledge of front-end technologies (HTML/CSS/JavaScript) is desirable. Previous experience is Contentsquare and or Dynamic Yield is desirable. More ❯