Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite

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About this role

Company Description

Job Description

Job Title: Principal Software Engineer-IAM

Duration: 6+ Months Contract to Hire

Location: Coppell-HYBRID 3 days

Position Summary:

The Principal Software Engineer is responsible for identification and development enterprise solutions.

Principal Duties:

  • Design, architect, and implement secure authentication and authorization solutions using Identity and Access Management (IAM) principles to enable Single Sign-On (SSO) and secure access for internal and external applications, platforms, and APIs.
  • Lead the implementation of modern identity standards, including OpenID Connect (OIDC) and OAuth 2.0, supporting a variety of use cases such as web applications, mobile applications, B2B integrations, and service-to-service communication.
  • Build and maintain enterprise-grade integrations with Okta, enabling application onboarding, federation, and secure access to protected resources in alignment with organizational identity standards.
  • Partner closely with architecture, platform, security, and product teams to define and evolve standard authentication and authorization patterns, ensuring consistency, scalability, and security across the enterprise.
  • Document identity architectures, integration patterns, and operational guidance, enabling development teams and platform teams to efficiently onboard applications and troubleshoot authentication and authorization issues.
  • Responsible for one or more applications, working with Business Systems Manager and Business Analyst counterparts on planning and delivering code changes to production, ensuring teams work on schedule
  • Provide business and project expertise when collaborating with clients, IT resources, vendors, consultants and other stakeholders to identify the user requirements, assess technologies, recommend and implement technical solutions.
  • Participate in estimation process.
  • Responsible for source code development; create technical documentation; utilize software configuration, version and quality management processes.
  • Responsible for unit testing, performance tuning, defect remediation during testing, and deployment planning
  • Participate in Production Support Escalation if necessary for high-severity issues within their application domain
  • Can analyze, design and develop complex programming systems independently.
  • Chair Agile Team meetings
  • Performs related duties as assigned by management.

Education and Experience

  • Master’s degree in a technical field + 3 years of work experience or bachelor’s degree in a technical field + 5 years related experience.
  • Experience designing, architecting, and implementing secure authentication and authorization solutions using IAM, SSO, OIDC, SAML, Oauth2
  • Experience developing software for the US mortgage industry.

Knowledge, Skills, and Abilities

  • Adaptive leadership style, capable of leading multi-disciplinary teams with diverse skill sets and experience levels
  • Excellent interpersonal, oral, and written communication skills
  • Ability to respond quickly to sensitive issues, complex inquiries, or complaints from clients, co-workers and or management
  • Strong analytical skills
  • Proficiency with:
    • Okta integration and configuration
    • ASP.Net / MVC / WebApi / C# / .Net 4.0+
    • Developing solutions around  IAM / OIDC / OAuth2
    • Design Patterns
    • OOPS
    • Web Services
    • XML
    • Sql Server 2012 and above
    • Experience with Windows Services
  • Experience in third party integrations.

Qualifications

Additional Information

All your information will be kept confidential according to EEO guidelines.

Frequently Asked Questions

Is the salary disclosed for the Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite position at tmsllc?
The salary for this Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite role at tmsllc is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite position at tmsllc located?
This Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite role at tmsllc is based in Coppell, Coppell, TX, United States, TX, us. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite role at tmsllc full-time or part-time?
This is listed as a Contract position. It is posted as a Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite role at tmsllc.
How do I apply for the Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite position at tmsllc?
Click the "Apply Now" button on this page. You will be redirected to tmsllc's official application portal hosted on smartrecruiters where you can submit your application directly.
When was the Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite job at tmsllc posted?
This Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite position at tmsllc was posted on Jun 11, 2026. Apply as soon as possible — early applications are often reviewed first.
Principal .NET Engineer with IAM | W2 Only | Longterm | 3 Days a week Onsite
tmsllc
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