301 to 325 of 371 JavaScript Jobs in London

role: As a Principal Front End Developer you will lead the development of scalable and secure web applications for global financial clients using modern JavaScript frameworks, primarily React. You'll architect responsive, accessible and elegant user interfaces and work closely with cross-functional teams to deliver transformative digital experiences. … join a friendly, diverse, upbeat team. About you : You have experience within a financial services or Fintech environment You have strong React, JavaScript/TypeScript experience You have experience with modern CSS techniques (Flexbox, Grid) and frameworks like SASS, Material UI and Bootstrap You have experience with Redux, Webpack ...

holds full internal ownership. Phase 2 (3-9 months): Lead technical discovery with operational stakeholders to define the automation roadmap. Build workflow automations in JavaScript and Python - ticket routing, billing triggers, licence lifecycle, CRM sequences, alert-to-action logic. Build and maintain Azure middleware (Logic Apps, API Management, Service … support or consulting * Greenfield implementation experience with at least two of: HaloPSA, HubSpot, Sage Intacct, NinjaOne RMM, 3CX, Microsoft 365/Graph API * Strong JavaScript and/or Python for integration scripting and automation * REST API design - webhooks, OAuth, JSON transformation, event-driven architecture * Cross-platform data mapping across multiple ...

fast-growing Banking SaaS provider building next generation core banking technology. We are looking for Software Engineers with experience in Node.js/TypeScript/JavaScript, .NET/C#, or Java. You will work directly on customer problems, understand the business context and own solutions end-to-end. From concept … ownership of features from development and testing through to deployment, monitoring, and production support Experience Required Degree educated Development experience in either Node.js with JavaScript & Typescript, .NET, C# or Java AWS experience preferred (Azure, GCP also welcomed) Strong understanding of relational databases, ideally MySQL Interest in agentic engineering workflows ...

fast-growing Banking SaaS provider building next generation core banking technology. We are looking for Software Engineers with experience in Node.js/TypeScript/JavaScript, .NET/C#, or Java. You will work directly on customer problems, understand the business context and own solutions end-to-end. From concept … ownership of features from development and testing through to deployment, monitoring, and production support Experience Required Degree educated Development experience in either Node.js with JavaScript & Typescript, .NET, C# or Java AWS experience preferred (Azure, GCP also welcomed) Strong understanding of relational databases, ideally MySQL Interest in agentic engineering workflows ...

Code) Architecture: Microservices, Micro-Frontends, Event-driven architecture Who We're Looking For A software engineer with a strong background in TypeScript/JavaScript and experience in modern API development with Node.js. Someone who is comfortable building distributed systems with asynchronous event-driven architecture. Knowledge of designing and implementing GraphQL … check every box! We're looking for passionate engineers who are excited to grow. If you have a solid foundation in TypeScript/JavaScript and Node.js and are eager to learn, we encourage you to apply. We are committed to building a diverse and inclusive team and welcome applications from ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition ...

Senior Consulting Engineer (Armakuni Network - Contractor) London, United Kingdom Posted 11 months ago Tech stack Node.js Amazon AWS Python GCP Java React JavaScript Azure Native principles and practices (e.g., AWS, Azure, or GCP). Proficient in programming with multiple languages (e.g., Java, Python, Node, Javascript, React – though we are open ...

business impact of. There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js. Location: You'll be based in plush City office on a fulltime basis, Monday to Friday. About you: You have expertise with C# .Net … ASP.Net development You have a strong knowledge of databases (SQL or Oracle) You're comfortable with JavaScript/React You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms You are collaborative with excellent communication and stakeholder management skills You are degree educated ...

primarily written in TypeScript, utilizing Node, NestJS, and Docker for back‐end microservices; React powers the front‐end. We're seeking a Senior JavaScript/TypeScript Engineer to join our team as we scale to more users within the company. The position offers the opportunity to work on both front … tight feedback with users, and opportunity to influence the design and architecture of a growing system. Requirements Strong software engineering background Strong experience in JavaScript/TypeScript or other object‐oriented programming Experience in performance tuning data‐intensive systems Comfortable with ownership of a significantly large and complex codebase Desirable ...

technologies and tooling. Responsibilities: Design, develop, and maintain front-end applications using Angular 14+ as the primary framework. Build reusable, maintainable components using TypeScript, JavaScript, and RxJS. Implement responsive and accessible layouts using HTML5, CSS3, CSS Grid, and Flexbox. Work with AstroUXDS and UX designs to deliver high-quality user … front-end codebases. About You Strong commercial experience with modern Angular (version 14 or later) as the primary front-end framework. Proficient in TypeScript, JavaScript, and RxJS for building scalable front-end applications. Solid experience with HTML5, CSS3, CSS Grid, and Flexbox for responsive UI development. Experience using Node.js ...

patterns Working extensively with Azure services , including Service Bus, API Management (APIM), Function Apps and Logic Apps Supporting pro-code extensibility using .NET and JavaScript , with exposure to React and Fluent UI for PCF controls (desirable) Engaging with emerging technologies such as Code Apps, AI-assisted development and 'vibe coding … recent, hands-on Power Platform development experience Strong expertise in Model-Driven Apps , with solid experience in Canvas Apps and PCF Good understanding of JavaScript-based frameworks used in PCF (React, Fluent UI - nice to have) Strong integration experience across Azure services, APIs and secure data exchange Experience working ...

integration platforms Strong understanding of MLOps and productionizing machine learning Experience leading and scaling engineering teams Tech stack: Azure, Databricks, Python, PySpark, SQL, JavaScript, Node, Bash THE ROLE: You’ll own the technical vision and delivery of our core platforms: Build world‐class platforms Architect cloud‐native data … work with hands‐on technical leadership where required Define and own the engineering roadmap and align to resource needs Work with: Azure, Databricks, Bash, JavaScript, Node, Python, PySpark, SQL Integration & Ecosystem Enablement Own the strategy and delivery of integration services, including public and private APIs, event‐driven and asynchronous integrations ...

areas, we want to hear from you: ServiceNow or other ITSM Toolsets (HP Service Manager, BMC/Remedy, Cherwell, etc.) Web Technologies (XML, HTML, JavaScript, Web Services, etc.) Where purpose meets career: Lead with Impact: Take on a project leadership role where you’ll drive cross-functional initiatives, influence … desirable. ServiceNow Certifications in all areas are highly desirable. Experience in multiple application architectures and supporting technologies. Expertise with scripting languages such as PERL, JavaScript, Python, and Shell. Web service proficiency (REST, SOAP) as well as XML and JSON knowledge. Knowledge of relational databases (MySQL, MSSQL, Oracle) beneficial. Must ...

Company Description WireMock is the industry standard for API environment simulation. With a massive global open-source footprint and deep adoption across the Fortune 500, we provide the critical infrastructure that engineering teams use to ...

Security Architect (API/Product Security) Retail Hybrid: 3 days onsite per week in London 6 months+ £750 - £800 per day In short: We require a strong, application-focused Security Architect with a keen background ...