1 to 25 of 45 JavaScript Jobs in Essex

Collaborative Spirit – works fluidly with data scientists, commercial teams, and ops leaders. Hard Skills Required • Software Engineering: Strong in at least one modern language (JavaScript/TypeScript, Java, Python) • Web & Product Development: Frameworks (React, Node.js, Django/Flask) • AI, GenAI and LLMs: OpenAI, Gemini, Grok, Llama • Agentic AI: Frameworks (langchain ...

interpreting designs and patterns provided by other team members and approved 3rd parties into workable, scalable, reliable solutions. Proficient in creating code, processes, JavaScript, T-SQL, formulas, C#, PowerShell and other scripts as required. Proficient in manipulating and working with a range of data formats including JSON, XML, delimited text ...

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 ...

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 ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...

related discipline). Strong commercial experience with C#. Experience building and maintaining highly scalable, high-performance systems. Solid knowledge of web development (HTML, JavaScript, CSS) and database design. Familiarity with design patterns, refactoring, and OO design principles. Proactive and detail-oriented, with strong analytical and problem-solving skills. Excellent communication ...

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 ...

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 ...

take ownership, think critically, and deliver high quality solutions to real problems. Essential experience Strong experience with React and Next.js (App Router) Solid JavaScript and TypeScript knowledge Strong front-end instincts and attention to UI and UX quality Experience with Tailwind CSS and component-based UI libraries (e.g. ShadCN) Comfortable ...

team environment. What you'll need: Core Technology skills required – Strong full stack software engineering skills. Desirable technology skills: Python, Django, React, JavaScript, MySQL, SPAs, AWS (Lambda, CloudFormation, RDS). 5+ years of relevant experience in the core technology skills Best practice software development skills and practices. Excellent communication skills ...

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/ ...

taking the time to ship high-quality code. What you bring to the table: Experience building and scaling web applications. Strong understanding of modern JavaScript frameworks. Strong coding ability. Passionate problem-solving mindset. Reputation for getting things done. Strong sense of ownership. Desire to learn and grow. Desired qualifications: Experience ...

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 ...

write and be able to understand fluent English. Deep knowledge and regular usage of Firebase suite, especially Firestore. Strong proficiency in TypeScript and modern JavaScript (ES6+). Familiarity with Expo, React Navigation, Reanimated and Vision Camera. Understanding of mobile app development best practices, including release automation and performance optimisation. ...

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 ...

libraries and resolving AppCheck warnings Producing clear technical documentation and handing over to the internal team Tech Stack ASP.NET MVC (.NET Framework 4.8) C# JavaScript, HTML, CSS REST APIs Required Experience Strong background in authentication and authorisation patterns Experience securing high-risk or regulated user actions (e.g. approvals, authorisations) Comfortable ...

Looking For Experience working with Foreign Exchange (FX) systems Strong grasp of QA methodologies, tools and best practices Hands-on experience using Cypress Solid JavaScript programming skills Strong SQL knowledge Experience with both white-box and black-box testing Excellent written and verbal communication Detail-oriented, quality-driven mindset High ...

days/month; occasional team gatherings Salary: Senior: €130–150k base + growth trajectory Principal: €160–200k base + package discussion Tech: Python, JavaScript, Azure, AWS, AI, LLM's, RAG Industry: AI Consultancy The Role We're looking for talented engineers to join our customer-facing AI practice, from Senior ...

experience working in an dynamic, agile (ideally SCRUM) environment Strong working knowledge of AWS and linux based servers Frontend development knowledge and experience of JavaScript and Vue will be hugely beneficial Experience with building and using RESTful APIs About Rework Digital Primarily we're a bespoke web development company. ...

website accessibility standards and GDPR/privacy compliance - Familiarity with SEO practices, analytics tools and methods for optimising site performance - Basic knowledge of JavaScript or modern front-end development frameworks Please contact us as soon as possible for more details or apply below ...

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). ...

Senior JavaScript Developer/front End Engineer (Vue 3) Billericay/WFH to £75k Are you a JavaScript web technologist seeking an opportunity to work with a modern tech stack on Greenfield projects? You could be progressing your career in a senior, hands-on role at an eCommerce payments solutions … that has experienced great success in the last year and is growing as a result. What's in it for you: As a Senior JavaScript Developer you will earn a competitive package: Salary (to £75k) Bonus 25 days holiday Pension Life assurance Private medical care Pizza days and other social ...

observability Tech Stack & Environment Frontend: Svelte (primary), with openness to React or Angular experience Strong focus on web components and reusable design systems Modern JavaScript/TypeScript Backend: Node.js or Python (microservices-based) API-driven architecture Infrastructure & Cloud: Kubernetes AWS Containerized, cloud-native deployments Data: SQL databases What … Looking For Strong experience as a senior or lead fullstack engineer in modern web environments Deep knowledge of JavaScript and frontend architecture Experience with Svelte, React, or Angular (Svelte experience is a plus, not a requirement) Backend experience with Node.js and/or Python Solid understanding of microservices architecture Hands ...

deliver user-focused digital experiences. Communicate effectively at both technical and non-technical levels. Essential Knowledge, Skills & Experience Strong proficiency in modern web development: JavaScript/TypeScript, C#, responsive design, and mobile-first development. Experience with full-stack frameworks (Next.js, Remix, Astro) and developing REST/GraphQL APIs. Knowledge … accountability for results. Excellent time management and interpersonal communication skills. Team-oriented, adaptable, and level-headed under pressure. Experience 3+ years in modern JavaScript/TypeScript and C# development. Hands-on experience with full-stack web frameworks and API development. Degree in Computer Science, IT, or a related field. ...

selection of more advanced courses to get you up to speed. 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, so it will be essential! Python ...