1 to 25 of 34 JavaScript Jobs in Hertfordshire

Event-driven, microservices-oriented design Cloud: Azure (AWS experience valued), Infrastructure-as-Code Data: SQL, caching strategies, message brokers (RabbitMQ, etc.) Frontend: HTML, CSS, JavaScript DevOps: CI/CD pipelines, Behaviour-Driven Development, modern agile methodologies What You Bring: 10+ years of software engineering with proven architectural leadership - you shape ...

/AEM HTL (HTML Template Library) Experience integrating React with AEM Sling Models Working within enterprise CMS-driven architectures Core Technical Skills HTML5, CSS3, JavaScript (ES6+) React.js & TypeScript State management (Redux/Zustand) API integration (REST/GraphQL) Version control using Git Front-end testing (Jest, Cypress, etc.) Strong debugging ...

passionate about building systems that last. You'll bring: Expert-level experience with C#, .NET and object-oriented design Strong front-end knowledge using JavaScript/TypeScript and React Deep experience designing and governing enterprise APIs (REST & SOAP), ideally on Azure Proven leadership in DevOps, CI/CD pipelines ...

degree in Computer Science or a closely related discipline. - 4+ years building modern web or data applications with .NET and at least one JavaScript framework. - Hands-on experience with Azure or another major cloud provider, plus an understanding of microservices and event-driven architectures. - You love balancing delivery speed with ...

logic as well as NodeJS frameworks including ReactJS, NextJS, NestJS etc. You will have commercial experience in Frontend Web development technologies, including HTML, CSS & JavaScript/Typescript as well in using Git or related technologies. Ideally you will have TDD or BDD development experience as well as an understanding ...

developing and integrating AI solutions such as chatbots, voicebots, ML models, or LLM-based analytics. Strong proficiency in Python (preferred) and/or JavaScript/TypeScript. Hands-on experience with AI frameworks (TensorFlow, PyTorch, LangChain) and LLM APIs (Azure OpenAI, OpenAI API, Anthropic, AWS Bedrock). Experience with Microsoft ...

long-term reliability What We're Looking ForRequired: · 2+ years software development experience · Commercial experience with Angular (v10+) · Strong proficiency in TypeScript and JavaScript · Familiar with RxJS and reactive programming concepts · Experience working with APIs (REST or GraphQL) · Some Node.js back-end experience (or willingness to grow in that area ...

technology skills, including substantial leadership and architecture responsibilities. Core Technology skills required – Strong full stack software engineering skills. Desirable technology skills: Python, Django, React, JavaScript, MySQL, SPAs, AWS (Lambda, CloudFormation, RDS). Best practice software development skills and practices. Excellent communication skills with an open, collaborative approach. A passion ...

reports, technical notes and business development What they'll bring: A degree in Computer Science, GIS, Geospatial Technology or similar Experience with Python, JavaScript, SQL, HTML and CSS Familiarity with geospatial platforms and libraries (e.g. ESRI, QGIS, GDAL, GeoPandas) An interest in offshore, marine or renewable energy projects A collaborative ...

Mastery: Extensive professional background working with the JVM ecosystem (specifically Java or Kotlin). Modern Web & Orchestration: Ideally you will have proficiency in JavaScript frameworks and experience with workflow engines. Cloud-Native Data: Solid experience architecting on AWS and managing both relational and document-based data stores like Postgres ...

team grows Skills 4+ years commercial software development experience 2–3+ years experience with React.js 2–3+ years experience with Node.js and modern JavaScript (ES6+) Experience with relational databases such as Postgres Familiarity with Git and CI/CD workflows Strong collaboration and communication skills Agile development experience Writing clean ...

both AWS and Azure Solid experience with API design and management , including REST , SOAP , and event-driven architectures Hands-on development experience using Python , JavaScript, and/or ETL/data transformation tools Experience integrating with enterprise SaaS platforms such as Salesforce , ServiceNow , SAP , or Pega Strong communication skills, able ...

across AWS and Azure Solid knowledge of API design and management, including REST/SOAP and event-driven architectures Hands-on experience with Python, JavaScript, or ETL/data transformation tools Experience integrating with SaaS platforms including Salesforce, ServiceNow, SAP, or Pega Strong communication skills with the ability to engage ...

Contribute to CI/CD pipelines, cloud deployment, monitoring and automation Help define the engineering culture as a team. Tech We Use Frontend: Twig, JavaScript, CSS Backend: PHP Databases: PostgreSQL Caching/Search: Redis, ElasticSearch (Deep experience in all is not required - strong engineering fundamentals are.) About You 5+ years ...

Minimum 3+ years of commercial experience with Magento 2, specifically with a backend focus. Tech Stack: Strong proficiency in PHP, MySQL, HTML/CSS, JavaScript, and Git. AI-Augmented Workflow: You are comfortable working with AI-native IDEs (e.g. Google Antigravity, Cursor, Windsurf) to speed up debugging and code generation. ...

6 month fixed term contract. We are looking for a senior full-stack React developer to help a client continue development of their AI research product. It enables teams to transform their research into interactive ...

Bring • Strong experience in automated testing • Solid understanding of the SDLC and agile methodologies • Experience working with CI/CD pipelines • Proficiency in TypeScript, JavaScript, and ideally ReactJS • Hands‐on experience with Playwright, Cypress, or Selenium • Familiarity with test management tools such as Xray • Knowledge of BDD frameworks (Gherkin/ ...

leadership roles Proven experience leading development teams and senior engineers within a digital agency or professional services environment Strong hands-on experience with PHP, JavaScript, HTML, and CSS Proven experience delivering complex custom websites, platforms, integrations, and ecommerce solutions Deep practical experience with WordPress, and working knowledge of Shopify ...

This knowledge is valuable for advising customers on strategic, phased migration paths to the cloud. Scripting/Development: Basic familiarity with scripting languages (e.g., JavaScript, Python) or development environments to rapidly prototype and demonstrate integration capabilities. Certifications: Relevant cloud certifications (e.g., AWS, Azure) or specialized CCaaS vendor certifications. Travel Requirements ...

calm professional manner, even when things are changed at the last minute. w. We are looking for prior experience of: programming in HTML5, Javascript, CAD tools (CREO and SolidWorks). Knowledge of multimedia authoring tools (Storyline, 3DSMax, Flash PhotoShop and Da Vinci Resolve amongst others and using them to create ...

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join … highest standards of code quality in alignment with company-wide conventions. Required skills: · Minimum of 4 years of hands-on experience with Javascript working mainly on Frontend solutions · Solid grasp of JavaScript(Vanilla Javascript) fundamentals, including understanding of the Document Object Model (DOM) and browser Application Programming Interfaces (APIs). ...

drive efficient design and development processes Demonstrated hands-on success; in programming using: Java, Pro C and PL/SQL in scripting languages using: JavaScript and shell script in database query language such as: Oracle - performance, EXA, etc. 9 + years of experience as an Engineer in a Retail domain ...

testing and performance optimisation Diagnose and resolve issues across browsers, devices and edge cases About You Strong experience with React and modern TypeScript/JavaScript Able to deliver polished, production-ready UI Comfortable improving performance and debugging complex issues Pragmatic, curious, and ready to take on more ownership Good design ...

.NET Developer, .NET 10.0, C# 14 - Consultancy - Stevenage (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is an award winning Microsoft consultancy. They specialise in delivering innovative … Knowledge of software development methodologies is of interest (Agile, Scrum). My client will provide training in: .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, MongoDB, Azure, AWS, Node.js and Elasticsearch. This is a truly exciting project, one which if you are given ...

Full Stack Engineer/Developer (C# .Net Core JavaScript AWS) St Albans/WFH to £100k Opportunity to progress your career in a hands-on role at a technology driven trading company that invest in Sports betting markets, with a flat structure where you will get your voice heard … station, with the flexibility to work from home twice a week. About you: You have strong C# .Net Core backend development skills You have JavaScript experience, combined with Angular or React You have experience with AWS and microservices You have a thorough understanding of Computer Science fundamentals such ...