Senior .NET Lead Engineer – IAM Specialization

Simple Software Solutions Group, Inc

Sr .NET Lead Engineer for Simple Solutions, designing secure authentication and authorization solutions using IAM principles. Leading the implementation of modern identity standards like OIDC and OAuth 2.0.

Posted 6/5/2026contractDallas • Texas • 🇺🇸 United StatesSenior💰 $80,000 - $90,000 per yearWebsite

Tech Stack

Tools & technologies

ASP.NETMicroservices.NETSQL

About the role

Key responsibilities & impact

Design, architect, and implement secure authentication and authorization solutions using IAM principles
Lead the implementation of modern identity standards, including OpenID Connect (OIDC) and OAuth 2.0
Build and maintain enterprise-grade integrations with Okta
Partner closely with architecture, platform, security, and product teams
Document identity architectures, integration patterns, and operational guidance
Responsible for one or more applications, working with Business Systems Manager and Business Analyst counterparts
Provide business and project expertise when collaborating with clients, IT resources, vendors, consultants and other stakeholders
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

Requirements

What you’ll need

15+ years of experience with C#/.NET development & IAM Implementation skills
Strong C# Development ASP.NET / Web API projects
Microservices or API development
SQL Server usage
Hands-on coding (not oversight)
Implemented OAuth2 flows in C#
Built OIDC authentication in .NET apps
Integrated Okta/Auth0 using SDKs
Token validation / claims handling
SAML integration inside apps

Benefits

Comp & perks

Health insurance
401(k) matching
Flexible work hours
Paid time off
Remote work options

ATS Keywords

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Hard Skills & Tools

C#.NETASP.NETWeb APIMicroservicesAPI developmentSQL ServerOAuth 2.0OpenID ConnectSAML

Soft Skills

leadershipcollaborationcommunicationdocumentationproject expertiseestimationproblem-solvingstakeholder engagementoperational guidancedefect remediation