.Net IAM Developer

  • GCS Recruitment
  • Bolsterstone, Sheffield
  • 21/06/2026
Full time Information Technology Telecommunications

Job Description

Role Title: .Net IAM Developer

Location: Sheffield (Hybrid - 2-3 days per week onsite)

Role Category: Inside IR35

Contract Duration: Until 30th November with extension

Overview

We're recruiting for an experienced .Net IAM Developer to join the Identity & Access Management team of a leading global financial services organisation.

This role offers the opportunity to work on enterprise-scale identity solutions, developing secure integrations and supporting identity lifecycle management across a complex technology estate.

Responsibilities
  • Develop enterprise IAM solutions using .NET Core, ASP.NET and C#.
  • Build and support integrations with SailPoint IdentityNow.
  • Develop custom connectors and REST API integrations.
  • Configure integrations with Active Directory, Microsoft SQL and Web Services.
  • Support identity lifecycle processes including Joiner, Mover and Leaver.
  • Implement and support Role-Based Access Control (RBAC).
  • Investigate and resolve provisioning and access-related issues.
  • Work closely with business stakeholders, infrastructure teams and third-party suppliers.
  • Produce technical documentation and knowledge transfer materials.
  • Support CI/CD automation using Jenkins, GitHub and Ansible.
  • Contribute to cloud-based IAM solutions within Azure and AWS environments.
Required Skills
  • 5+ years' experience in enterprise software development.
  • Strong experience with .NET Core, ASP.NET and C#.
  • Microsoft SQL Server.
  • REST API development and enterprise integrations.
  • Experience integrating with Active Directory.
  • Experience with SailPoint IdentityNow or another enterprise IAM platform.
  • Knowledge of Identity Lifecycle Management, Access Provisioning and RBAC.
  • Experience using Jenkins, GitHub and Ansible.
  • Azure and/or AWS exposure.
  • Excellent troubleshooting and communication skills.
Desirable Skills
  • SailPoint IdentityNow custom connector development.
  • CyberArk, HashiCorp or Centrify.
  • Angular.
  • Docker and Kubernetes.
  • QA and automated testing.
  • JIRA and Confluence.

This is an excellent opportunity to join a high-performing engineering team delivering secure, enterprise-scale Identity & Access Management solutions using modern .NET technologies, cloud platforms and automation practices.

GCS is acting as an Employment Business in relation to this vacancy.