1 to 25 of 234 Permanent JavaScript Jobs in Slough

architecture, and reduce technical debt, whilst mentoring junior engineers and contributing to a culture of continuous learning and innovation. About you Strong proficiency in JavaScript, TypeScript and React, with a solid grasp of modern ES6+ features and best practices Ability to build accessible user interfaces that comply with accessibility standards More ❯

front-end using React. Experience required: 6+ years of commercial development experience Deep expertise in React.js for high-performance web applications Solid grounding in JavaScript (ES6+), TypeScript, HTML5, CSS3, and modern UI architectures (Redux, Context API) Strong server-side skills ideally in Java and/or Python Experience with SQL More ❯

positions, we’d welcome a confidential conversation. We’re especially interested in those with experience in: Software development using C#/.NET, Java, or JavaScript frameworks (such as Angular, React, Node.js) Cloud and DevOps tools (Azure, AWS, CI/CD, containerisation with Docker/Kubernetes) API development, integration, and microservices More ❯

Agile methodologies. Rapidly prototype new ideas while ensuring scalability and robustness for production systems. Technical Skills Programming Languages: Java, Python, C#, C/C++, JavaScript, Ruby Web Technologies: React, Webpack, SCSS, Node.js, AngularJS Protocols: HTTP, TCP/IP, UDP, SMTP, DNS API Development: REST, SOAP, RPC, RMI Architectures: Microservices, Cloud More ❯

on both front-end and back-end technologies. Expertise in C# and .NET Core for server-side development. Strong experience with React and modern JavaScript (ES6+), including state management libraries like Redux or Context API. Proven experience with RESTful API development and integrating third-party services. Solid understanding of SQL More ❯

collaborate with product managers, designers, and senior engineers to understand project goals and deliver high-quality solutions. You’ll work with technologies like Node.js, JavaScript, TypeScript, and React, and play a key role in leveraging AI-powered development tools (such as GitHub Copilot, Cursor, Claude Code, or Gemini) to improve More ❯

software development experience, with at least 3 years in a senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development More ❯

Bachelor’s degree in computer science, Engineering, or a related field, or equivalent work experience. Knowledge of front-end technologies like HTML, CSS, and JavaScript is a plus. More ❯

Power BI. Required Skills & Experience Cloud Certification: AWS, Azure, or Google Cloud (with hands-on experience in developing cloud applications). Technical Skills: C#, JavaScript, Node.js SQL & Database Management API Development (RESTful) Version Control (Git) CI/CD Pipelines Testing Frameworks Platform Experience: Power Apps Power Automate Azure Functions Apigee More ❯

The role is based in Central London and requires office working of twice a week. Technical Requirements: Backend: C#, .Net Core, ASP.NET, APIs, Frontend: JavaScript, HTML, CSS, React Additional Skills: Azure, SQL, Power Platform – Power BI Bonus Skills: DevOps, PowerShell, CI/CD Pipelines, QA Confident working in an Agile More ❯

individual contributor role with no direct line management but significant influence over technical decisions and standards. Key Technical Skills Front-End Development: HTML5, CSS3, JavaScript, TypeScript, React (including Next.js) Back-End Development: .NET Framework, .NET Core, ASP.NET Core, Node.js, C# Database Management: SQL Server, with additional experience in NoSQL databases More ❯

GraphQL APIs for seamless data integration. Performance Optimisation. System Architecture & Scalability. Code Review & Quality Assurance. Security Best Practices. Skills and Experience: Essential: Proficiency in JavaScript/TypeScript, React, Node.js, PostgreSQL, and MongoDB. Experience with Directus or other headless CMS solutions. Strong understanding of RESTful & GraphQL APIs. Proven experience in leading More ❯

grade solutions with Microsoft Power Platform (Power Apps, Automate, BI, Virtual Agents). Proficiency in developing .NET-based solutions, including experience with C#, ASP.NET, JavaScript, HTML, CSS, SQL, and related frameworks. Solid hands-on experience with SharePoint Online development and SPFx. Strong data modelling and analysis background, with working knowledge More ❯

GCP, or Azure), containerisation, and CI/CD pipelines Familiarity with scalable data delivery architectures (e.g., microservices, serverless frameworks) Front-end development skills (React, JavaScript, Streamlit, etc.) Familiarity with geospatial tools and frameworks (Mapbox, Leaflet, CesiumJS, etc.) Familiarity with UX/UI design principles and interactive web-based visualisation  Location More ❯

in C# and .NET. Expertise in: .NET Framework and WinForms Modern .NET (.NET 9) SQL Server (including performance optimisation) Front-end tech (HTML, CSS, JavaScript) Proven experience with application modernisation, including migrating legacy WinForms applications to modern web platforms (Blazor preferred). ·Strong understanding of layered architecture and best practices More ❯

dynamic, purpose-driven organization. Job Requirements 10+ years experience working within software engineering Strong experience developing SPAs using Angular, along with solid HTML, CSS, JavaScript/TypeScript skills. Backend expertise with C#, .NET, LINQ, and building RESTful APIs using ASP.NET. Proficient in SQL (preferably MS SQL Server), including table design More ❯

Expert experience in HTML5/CSS and building mobile, responsive/adaptive applications (e.g., Phonegap, Python, Objective-C, etc.). Strong professional experience with Javascript MVC frameworks (e.g., Angular JS, Backbone, etc.). Significant experience writing and utilizing RESTful API services and performance tuning large scale applications. Experience with relational More ❯

Lead Software Engineer within a Retail environment Experience with Azure, particularly in Middleware and microservice architecture Strong programming background, with proficiency in .NET, node, JavaScript or equivalent languages Hands on experience with API development, Azure Service Bus, Event Grid, and Azure Functions. More ❯

Role Title: Principal Software Engineer (JavaScript) Location: Remote (occasional onsite near Reading – likely 3-4 times per month TBC) Engagement: Statement of Work (Outside IR35) Rate: Up to £550 per day Overview: We are looking for a highly skilled Principal Software Engineer to contribute to a large-scale digital modernisation More ❯

experience in the analysis, design, development, testing and implementation of enterprise scale applications and solutions 5+years’ experience developing with C#, ASP.NET, Web Services, MVC, JavaScript, jQuery, CSS, HTML, T-SQL, XML, Visual Studio, and SQL Server Management Studio, with additional expertise in Bootstrap, React, Mobile Development and Service-Oriented Architecture More ❯

/GKE/Terraform, Google cloud environment (GKE) App server WebSphere, Jboss, Tomcat, WebLogic Languages C, C++, Java/J2EE Web Development HTML, CSS, JavaScript, JSP, Servlets. Database MS SQL Server2000/2005/2008/R2, PL/SQL, SQL, Oracle 8i/9i/10g, R Directory Server More ❯

developing full-stack software applications Expert-level Python skills Strong experience with modern web frameworks (FastAPI, Django, Flask) Proficiency in frontend technologies (React, TypeScript, JavaScript) Experience with databases (PostgreSQL, MongoDB) and data processing Track record of shipping reliable, scalable applications to production Proven problem-solving abilities and analytical thinking Experience More ❯

platform steps (eg. a user receiving an email or SMS codel) Some proficiency in FE tech, including but not limited to React, NEXT,JS, Javascript/Typescript, HTML(5), CSS A solid understanding of the challenges presented when building apps that must run on different devices and different browsers Experience More ❯

Job Description: • Proven experience as a Front-End Developer with a focus on React.js, and Typescript. • Familiarity with C# and .Net. • Strong proficiency in JavaScript, ES6/ES7, and related front-end technologies. • Familiarity with state management libraries such as Redux. • Experience with version control systems, such as Git. • Experience More ❯

Relational Database Management System (e.g. PostgreSQL) Nice to have skills: Knowledge of Workflow/Business Process Management tools Experience with front end technologies: HTML, JavaScript, Jquery, Mustcahe Templates Experience with Performance and Monitoring tools: JMeter, Kibana, Splunk, Dynatrace Experience writing Shell script Basic understanding of Python Good understanding on AWS More ❯