26 to 50 of 50 JavaScript Jobs in the City of London

scale web applications, with substantial hands-on responsibility rather than purely architectural oversight. Strong backend and database skills . Production experience with TypeScript/JavaScript and Node.js , API design, asynchronous programming, SQL and relational data modelling. Evidence of performance improvement. Practical experience profiling applications, diagnosing bottlenecks and reducing ...

proof-of-concept experience. Strong Microsoft AI technology experience, particularly Copilot Studio, Azure AI Foundry and Azure DevOps. Software development capability, ideally with Python; JavaScript or other development languages would be an advantage. A solid technical understanding of LLMs, NLP, machine learning fundamentals and prompt engineering. Experience designing prompts, grounding ...

Desirable Skills Experience integrating Seismic with Salesforce, Microsoft Dynamics or other CRM platforms. Knowledge of Seismic LiveDocs, LivePages or automation capabilities . Experience with JavaScript, Python, C# or other languages used in enterprise integrations. Understanding of CI/CD, version control and software development best practices. Experience working with content ...

Comfort working with XML and JSON, making API calls, and reading or writing scripts to debug application logic Programming/scripting language experience, particularly JavaScript, PHP, HTML, Java, XSLT, SQL A logical, structured approach to problems and strong attention to detail The ability to explain complex topics clearly to both ...

between technical and business contexts Analytical mindset with the ability to decompose complex, ambiguous challenges into actionable steps Programming foundation in Python, SQL, or JavaScript (academic projects, internships, or capstone work) Daily working fluency with AI development tools (ChatGPT, Claude, GitHub Copilot, Cursor), used as core tools rather than occasional ...

marketing platforms Familiarity with common platform integration methods (website tag managers, API authentication, retry/error handling, JSON, webhooks) Ability to interpret and edit JavaScript/Python code, and comfort articulating and discussing technical requests to engineers Familiarity working with or around "big data", using tools like AWS Athena ...

level testing. Experience designing and executing end-to-end automated tests. Good programming or scripting skills. Java is preferred, although experience with Python, JavaScript/TypeScript, C# or PHP is also suitable, provided you’re comfortable learning Java. Experience working with test automation frameworks. Playwright would be advantageous, but experience ...

knowledge-grounded AI applications AI agents and agentic workflows Microsoft Fabric Power Platform Azure Functions/Logic Apps APIs and system integrations Python, C#, JavaScript/TypeScript or similar Microsoft Entra ID/cloud security Please click apply ...

code (IaC), and CI/CD (experience with GitHub Actions and Jenkins would be ideal) Coding skills in Python, preferably with some exposure to JavaScript and Java A solid understanding of IT security principles Full existing UK work permission without time limit or the need for sponsorship This ...

integration processes. Technical Requirements You should have deep expertise in data integration technologies and methodologies. This includes proficiency in programming languages such as JavaScript/Node.js, Python, or PHP, and extensive experience working with APIs. Understanding of database systems (both SQL and NoSQL) is essential, as is experience with ...

technologies (Docker, Kubernetes) and big data platforms (Databricks). Ability to analyse complex performance issues and provide actionable recommendations. Strong scripting skills (e.g., Python, JavaScript) for test automation and data analysis. Knowledge of Performance Test Strategy and defining Non-Functional Requirements. Proven experience in Performance Testing of cloud-based architectures ...

modules - ESSENTIAL 2+ years' experience with the Microsoft Power Platform Experience with Power Apps (Model-Driven & Canvas) and Power Automate Strong knowledge of C#, JavaScript and the Software Development Lifecycle (SDLC) Experience gathering business requirements and working with stakeholders PL-900 certification is desirable Azure Logic Apps or Azure Functions ...

performance. Harness modern development and Azure DevOps practices, including CI/CD, containerization, and automated testing. Required Technical Skills Programming: C#/.NET, JavaScript/TypeScript Service Development: building web applications and web APIs using .NET and cloud services Cloud: Azure and others Database: (worked with one or more … Framework, CosmosDB Design & Style: HTML5, Responsive/Adaptive Design, CSS3, Bootstrap Frameworks: (Worked with one or more of) Angular, React, NodeJS, Vue.js, or equivalent JavaScript DevOps: Git, Azure DevOps, GitHub Nice-to-Have Skills Azure AI Foundry, Semantic Kernel or Autogen #J-18808-Ljbffr ...

Doing Develop and support web applications, APIs, services and integrations for the 3XD platform. Work across a .NET 8 MVC application using Razor Pages, JavaScript, jQuery, HTML and CSS. Build and maintain REST APIs, insurer integrations, data imports, exports, feeds and secure file-transfer processes. Work with SQL Server … assisted tools with appropriate security and human review. Our Technology Environment Application: .NET 8 MVC, Razor Pages, REST APIs and service integrations Frontend: JavaScript, jQuery, HTML, CSS and practical UI development Data: SQL Server/Azure SQL Server, reporting, reconciliation, imports, exports and data quality Integration: APIs, insurer feeds, SFTP ...

Futureheads, a fast-growing UK B2C business, is hiring a Full Stack Engineer to build customer-facing features and APIs using JavaScript/TypeScript, with a strong AI focus. You'll work across frontend and backend, own from scoping to delivery, contribute to AI-driven development, CI/CD, observability ...

browser technologies from a marketing point of view (previous marketing ops/marketing analytics experience is a plus) Mid-to-advanced level of JavaScript, CSS, and HTML experience Previous experience with marketing and/or product analytics tools such as Universal Analytics, GA4, Snowplow, Adobe Analytics, etc., with a good ...

Strong hands-on experience designing automated tests for backend systems, REST APIs or distributed platforms. Strong hands-on programming experience in C# is essential; JavaScript/TypeScript experience is secondary. Ability to define risk-based test strategies and translate functional and non-functional requirements into effective test coverage. Strong understanding … test automation, Playwright for web UI and end-to-end testing, bUnit for Blazor component testing, and JMeter for performance and load testing. JavaScript/TypeScript are also in use. C#/JavaScript Test automation frameworks Postman SQL and data validation REST APIs Azure-hosted applications and services Gherkin/ ...

Why Ryan Competitive Compensation and BenefitsBusiness Connectivity Reimbursement (Phone/Internet)Gym Membership or Equipment ReimbursementLinkedIn Learning SubscriptionFlexible Work EnvironmentTuition Reimbursement After One Year of ServiceAccelerated Career PathAward-Winning Culture & Community OutreachThe Full Stack AI ...

business logic, build clean services, and verify changes in shadow mode with zero downtime to revenue flows. Extract business rules scattered across C#, embedded JavaScript and undocumented SQL stored procedures into a clean, tested, dependency-free rules assemblies. Build new services cleanly. with proper Dependency Injection (DI), robust authentication/… happy working in it today. High proficiency in reading, understanding, and safely refactoring complex, stored-procedure-heavy database logic. Working proficiency in JavaScript/TypeScript. You’ll be interacting with both jQuery on the legacy .NET front end and modern TypeScript microservices on our sister platform. A strong "legacy technology ...

whole team builds Bringing AI assisted approaches into how we build, automate, harden and ship How we're setup We build primarily with JavaScript and TypeScript, using Node.js. We use a JSON format called Apple News Format for Apple News delivery, which we will provide training on. Our data runs … date MongoDB, ideally Atlas, with a sense of how to secure, configure and operate it safely Able to read and work in a JavaScript and TypeScript codebase well enough to review it, secure it, and support the engineers building it Sound instincts for reliability and incident response: monitoring, alerting ...

build AI-powered agents and experiences using Salesforce Agentforce, Einstein AI and related technologies. Develop and customise solutions using Apex, Lightning Web Components (LWC), JavaScript, Flow and APIs. Create, customise and optimise prompt templates using Salesforce Prompt Builder. Connect AI agents to enterprise data and business processes through Salesforce Data … engineering standards, code quality, CI/CD and DevOps practices. What we're looking for Strong hands-on Salesforce development experience, including Apex, LWC, JavaScript and Flow. Experience with Salesforce clouds such as Sales Cloud or Service Cloud. Practical experience with Agentforce, Einstein AI, Prompt Builder or other Salesforce ...

shape how the team uses AI as a core part of the software development process. This is a great opportunity for a full stack JavaScript/TypeScript engineer who wants genuine ownership, broad technical exposure and the chance to work in an increasingly AI-native engineering environment. The platform … customer is at the heart of everything they do. The role Build and iterate on customer-facing features, APIs and internal tooling using JavaScript/TypeScript Work across frontend and backend, taking ownership from initial scoping through to delivery Use AI as part of the development process to build, test ...

addition, you will acquire a range of knowledge of financial products generally. Responsibilities Maintain and develop our risk‐engine, which is implemented in JavaScript/NodeJS and Java with an in‐house library of functions. Expose to various asset classes, including equities, foreign exchange, commodities, interest rates, inflation, credit defaults … other teams. Qualifications Degree in Mathematics/Statistics/Computer Science, or any quantitative subject. Experience in coding in any programming language (preferably in JavaScript and Java). Experience in building software architecture solutions, creating databases and API requests. Knowledge in stochastic calculus, statistics, probability and numerical methods. Experience ...

addition, you will acquire a range of knowledge of financial products generally. Responsibilities: · Maintain and develop our risk-engine, which is implemented in JavaScript/NodeJS and Java with an in-house library of functions. · Expose to various asset classes, including equities, foreign exchange, commodities, interest rates, inflation, credit defaults … other teams. Qualifications: · Degree in Mathematics/Statistics/Computer Science, or any quantitative subject. · Experience in coding in any programming language (preferably in JavaScript and Java). · Experience in building software architecture solutions, creating databases and API requests. · Knowledge in stochastic calculus, statistics, probability and numerical methods. · Experience ...

3004 Avanade UK Limited Company is seeking a specialist to enable Automation and AI functions within client environments by enhancing their Power Platform capabilities. Responsibilities include designing solutions, articulating requirements, and developing multi-agent systems. ...