Senior .NET Developer

Senior .NET Developer (Licensing & CRM System) – Remote – Outside IR35

We're supporting an exciting greenfield project and are looking for an experienced Senior .NET Developer to join on a fully remote, outside IR35 contract starting January 2026. This is a 6-month engagement with strong potential to extend.

You'll be contributing to the development of a secure, scalable licensing and CRM platform built with modern .NET technologies, rich UI frameworks, and robust data architecture. If you enjoy shaping complex systems end-to-end, this one's for you.

Contract Details

  • Start Date: January 2026
  • IR35: Outside
  • Location: Remote
  • Contract Length: 6 months (potential to extend)
  • Rate: Negotiable (speak to recruiter)

What You'll Be Working On

  • Developing a high-performance web-based licensing & CRM application.
  • Building responsive, data-driven UI components using Kendo UI (Telerik).
  • Creating scalable server-side logic, APIs, and services with .NET MVC (C#).
  • Designing and optimising SQL Server schemas, stored procedures, and queries.
  • Integrating with external services such as payment gateways and regulatory APIs.
  • Working within an agile environment using Jira, contributing to sprints, reviews, and iterative releases.
  • Ensuring strong security, performance, and code quality standards throughout delivery.

What You'll Bring

  • Proven expertise with Kendo UI (Telerik) – grids, forms, charts, schedulers, etc.
  • Advanced .NET MVC / C# development experience (Razor, Entity Framework).
  • Strong SQL Server knowledge: indexing, optimisation, T-SQL, schema design.
  • Experience integrating 3rd-party REST/SOAP APIs.
  • Good understanding of Git, CI/CD pipelines, and secure coding principles.
  • Excellent communication and problem-solving abilities.

Nice to Have: OAuth / Identity management experience (e.g., Azure AD).

How the Team Works

  • Structured 2-week sprints using Jira.
  • Frequent feature releases and stakeholder demos.
  • Collaborative environment with a strong emphasis on quality and usability.

Interested?

If you're a senior-level .NET Developer who excels in enterprise builds and modern UI frameworks, this contract offers both challenge and impact.

Get in touch for full details or to arrange a confidential chat.

Job Details

Company
ITR | part of Ascent International Group
Location
Sheffield, UK
Hybrid / Remote Options
Employment Type
Full-time
Posted