1 to 25 of 33 Permanent JavaScript Jobs in Sheffield

with one or more of: Node.js/TypeScript .NET/C# PHP/Laravel Strong front-end experience with: React, Vue, or Angular Modern JavaScript/TypeScript API-first development (REST/JSON). Strong database experience (SQL and/or NoSQL). Experience with cloud platforms (AWS, Azure ...

cloud-based systems with CI/CD practices. You bring deep expertise in modern frontend frameworks (especially React) and essential web technologies—HTML, CSS, JavaScript, TypeScript, and accessibility (a11y). You are experienced with automated testing and familiar with TDD. You’ve worked in product-centric teams that prioritise strong ...

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 ...

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 ...

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. ...

continuously improve solution design and delivery. Required Skills & Experience Strong commercial experience with Node.js for backend development. Front-end development experience using modern JavaScript frameworks (e.g. React, Vue, Angular). Experience designing and building data-driven web applications and APIs. Solid understanding of software development best practices, security, and scalability. ...

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 ...

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 ...

GitHub, Jenkins, etc.) Experience writing scripts with Python, Postman, etc. to automate tasks via security tool APIs (REST & GraphQL) Familiarity with how .NET, Java, JavaScript programs are compiled and packaged. Hands-on experience with application security solutions (Veracode, Synopsys, Checkmarx, Snyk, etc.) and cloud security solutions (Wiz, Palo Alto Prisma ...

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 ...

your track record is strong) Extensive hands-on use of PHP 8+, Python 3+, MySQL 8+ (PostgreSQL also welcome) Solid fundamentals in HTML, CSS, JavaScript and experience with Angular 18+ Comfort deploying and managing Unix-based servers, plus CI/CD and Git workflows A clear communicator who can work ...

with designers, strategists and content teams Owning code quality, best practice and delivery standards What we are looking for Strong experience with PHP and JavaScript, with solid object oriented programming principles Proven experience building production applications using Laravel and React Ability to write clean, maintainable and well architected code Experience ...

Processes (fka Integration Procedures) OmniScripts Skills in Apex (triggers, batch, web services) Integration Experience is beneficial (Mulesoft/APIGEE/Connected Apps) Experience of JavaScript/Lightning components Basic understanding of Apex sharing and security model Experienced with Lightning Web Components Skills in analysing and problem-solving issues Experience ...

copy trading systems and their operational challenges • Ability to identify and explain slippage, spread variations, commission structures, and requotes Technical Skills • Programming experience (Python, JavaScript, or similar) for building dashboards and automation tools • Familiarity with cloud infrastructure monitoring (GCP preferred) • Experience with database monitoring and SQL queries • Basic understanding ...

Rate £550-650pd, Outside IR35 | 12-months Contract Length Senior-level backend experience with Python and Django in production systems Proven work with JavaScript and React (production experience strongly preferred) Familiarity with MySQL Databases and scale Strong grasp of APIs, cloud-native systems, and scalable architecture Freelance mindset: able ...

experience working effectively within large, enterprise-scale codebases. ● Solid proficiency in Java (deep server-side development and platform architecture familiarity). ● Strong experience with JavaScript, TypeScript and React (front-end development, with an interest in UX/UI principles). ● Expertise in SQL and designing/optimising relational database schemas. … interest in, the following or similar technologies and concepts is highly valuable: ● Backend: Java, Spring, Hibernate, multi-threading/concurrency, Quarkus/Micronaut. ● Frontend: JavaScript, TypeScript, React, D3.js, SVG, CSS. ● Database: SQL (SQL Server, MySQL, Oracle), Data Modelling. ● Infrastructure: Cloud Platforms (Azure, AWS), Git. ● Advanced Topics: AI/LLM (Large ...

e.g. you understand colour palettes and content hierarchy At least 3 years' of experience building corporate WordPress sites Good understanding of HTML, CSS, and JavaScript ...

ongoing technical clarification post-kickoff. Requirements 8+ years of experience in web development, engineering, or technical architecture. 5+ years of practical experience in PHP, JavaScript, and CSS development Hands-on technical experience working with WordPress, Shopify and/or Magento Experience in digital agencies or similar service businesses ...

Full Stack Engineer (JavaScript) – Early-Stage Tech Start-Up Remote (UK-based only) | Flexible Hours c£90k + Benefits (Pension, Private Healthcare, Death-in-Service, Equity Potential) Please note: Applicants must be UK-based with full right-to-work. Sponsorship is not available. The Role We're looking … bill syncs, integrations, and personalised experiences. About You You will be a great fit if you: Have 5+ years full-stack experience, with strong JavaScript/TypeScript depth. Are backend-leaning, with deep Node.js and API experience. Have previously worked in early-stage start-ups or very lean engineering teams. ...

develop and optimise websites and web applications across front-end and back-end Convert creative design concepts into functional, high-performing websites using PHP, JavaScript, HTML and CSS Maintain and improve existing client sites, adding features and resolving technical challenges Collaborate with designers and strategists to ensure technical solutions align … Take ownership of project timelines, deliverables, and quality assurance Mandatory Tech Stack: PHP (including modern frameworks and OOP principles) MySQL database design and optimisation JavaScript (including jQuery, and ideally modern frameworks like React or Vue) HTML5 & CSS3 (SCSS & Tailwind preferred) Version control using Git Understanding of UX principles and design ...

.NET Developer, .NET 10.0, C# 14 - Digital Download Site – Sheffield (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Programmer, Full Stack Engineer, Architect, .NET Developer) With operations in over 20 countries our client has fast become … .NET Core, C# and Azure SQL. You will be trained in all aspects of: .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Azure, Bootstrap, Agile and MongoDB. Top performers can expect to receive their first promotion (and pay rise) within ...

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 ...

execute, maintain and improve Automated Test Frameworks and Automated Test Scripts for Web and Database applications Proven experience in writing automated test scripts using JavaScript Experience of using automation tools such as Selenium web driver IO (WDIO)/Cucumber etc, Selenium for UI testing and RestAssured for API testing Experience … Testing Process Improvement - Establish performance testing standards, best practices, and governance frameworks across the organization Skill set ideally including several of: Java, Cypher, Python, JavaScript, PHP, .NET, Go, SQL Server, MySQL API, QMetry, Test Rail, BDD/TDD, Jenkins, Postman, Insomnia ...

execute, maintain and improve Automated Test Frameworks and Automated Test Scripts for Web and Database applications Proven experience in writing automated test scripts using JavaScript Experience of using automation tools such as Selenium web driver IO (WDIO)/Cucumber etc, Selenium for UI testing and RestAssured for API testing Experience … Testing Process Improvement - Establish performance testing standards, best practices, and governance frameworks across the organization Skill set ideally including several of: Java, Cypher, Python, JavaScript, PHP, .NET, Go, SQL Server, MySQL API QMetry Test Rail BDD/TDD Jenkins Postman Insomnia ...

execute, maintain and improve Automated Test Frameworks and Automated Test Scripts for Web and Database applications Proven experience in writing automated test scripts using JavaScript Experience of using automation tools such as Selenium web driver IO (WDIO)/Cucumber etc, Selenium for UI testing and RestAssured for API testing Jenkins … left testing practices Pub Sub and MQ GCP (Cloud) testing approaches and methodology. SaaS Testing Skill set ideally including several of: Java, Cypher, Python, JavaScript, PHP, .NET, Go, SQL Server, MySQL API QMetry Test Rail BDD/TDD Jenkins Postman Insomnia" All profiles will be reviewed against the required skills ...