Web Application Developer

Web Application Developer

Posted Today by Haystack

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£525 Per day
Inside
Undetermined
London, England, United Kingdom
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Active Server Pages (ASP) Agile Methodology Application Programming Interface (API) ASP.NET ASP.NET MVC 5 Autofac Azure DevOps Azure Pipelines C# (Programming Language) Cloud-Native Architecture Content Management Systems Continuous Integration and Continuous Delivery Data Structures Design Elements And Principles DevOps Entity Framework File Servers Front End (Software Engineering) Full Stack Development Gitlab JavaScript (Programming Language) JQuery Microsites Microsoft 365 Microsoft Azure Microsoft SQL Servers Mobile Application Development Mvc.net Ninject React.js RESTful API Software Design Software Development SQL (Programming Language) Teamcity Tridion Unit Testing User Interface Web Application Development Web Applications Workflows

Summary: The Senior Web Application Developer role involves leading the migration of a high-traffic eCommerce platform to an ASP.NET MVC 5 framework while implementing a modern Cloud-Native architecture using React and C#. The position requires deep expertise in the Microsoft stack and modern front-end development, with a focus on creating secure and efficient web applications. This is an opportunity to work with a globally recognized retail brand on a significant transformation project.

Key Responsibilities:

  • Lead the migration of high-traffic eCommerce sites and microsites into a scalable ASP.NET MVC 5 and C# environment.
  • Design and build secure, fault-tolerant web applications using React for modern front-end components and HTML5/CSS3 for seamless UI.
  • Architect and integrate complex RESTful APIs, SOAP WebServices, and XML/XPath data structures to support global operations.
  • Shape the CI/CD roadmap by managing source control and automated deployments via GitLab and Azure DevOps pipelines.
  • Optimize application and database performance using Entity Framework and SQL Server to ensure lightning-fast user experiences.

Key Skills:

  • Deep expertise in the Microsoft stack, specifically C#, ASP.NET MVC 5, and Entity Framework within enterprise eCommerce environments.
  • Strong proficiency in modern front-end development including React, JavaScript, jQuery, and responsive CSS3/HTML5.
  • Solid understanding of software design principles, specifically SOLID, OO design patterns, and IoC containers like Autofac or Ninject.
  • Proven experience in Agile environments and managing DevOps workflows with tools like TeamCity, GitLab, or Azure Pipelines.
  • Familiarity with Enterprise CMS platforms (such as SDL Tridion) and unit testing frameworks to ensure code quality and maintainability.

Salary (Rate): £525 daily

City: London

Country: United Kingdom

Working Arrangements: undetermined

IR35 Status: inside IR35

Seniority Level: Senior

Industry: IT

Detailed Description From Employer:

Senior Web Application Developer | £450 - £525

We're working with a globally recognized eCommerce powerhouse on this exciting opportunity. Are you a seasoned Full-Stack expert ready to lead a high-impact migration for a world-class retail brand? We are looking for a Senior Developer to drive the evolution of a massive eCommerce platform into an ASP.NET MVC 5 framework while paving the way for a modern, Cloud-Native architecture using React and C#.

The Role

  • Lead the migration of high-traffic eCommerce sites and microsites into a scalable ASP.NET MVC 5 and C# environment.
  • Design and build secure, fault-tolerant web applications using React for modern front-end components and HTML5/CSS3 for seamless UI.
  • Architect and integrate complex RESTful APIs, SOAP WebServices, and XML/XPath data structures to support global operations.
  • Shape the CI/CD roadmap by managing source control and automated deployments via GitLab and Azure DevOps pipelines.
  • Optimize application and database performance using Entity Framework and SQL Server to ensure lightning-fast user experiences.

What You'll Need

  • Deep expertise in the Microsoft stack, specifically C#, ASP.NET MVC 5, and Entity Framework within enterprise eCommerce environments.
  • Strong proficiency in modern front-end development including React, JavaScript, jQuery, and responsive CSS3/HTML5.
  • Solid understanding of software design principles, specifically SOLID, OO design patterns, and IoC containers like Autofac or Ninject.
  • Proven experience in Agile environments and managing DevOps workflows with tools like TeamCity, GitLab, or Azure Pipelines.
  • Familiarity with Enterprise CMS platforms (such as SDL Tridion) and unit testing frameworks to ensure code quality and maintainability.

What's On Offer

  • Competitive daily rate of £450 - £525 (Inside IR35) via Umbrella.
  • Initial 3-month contract with a high likelihood of extension given the project roadmap.
  • The chance to work on a cloud-native transformation for one of the most recognizable names in global retail.

Apply via Haystack today!

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