About the role

What will you do at Simple Solutions?

Job Title: Sr . NET Lead/Principal Engineer & IAM Specialization - hybrid

MUST HAVES:

12-15+ years of experience with C#/. NET development & IAM Implementation skills too.

1. Strong C# Development

ASP.NET / Web API projects

Microservices or API development

SQL Server usage

Hands-on coding (not oversight)

2. IAM in Code (Critical)

Look for:

Implemented OAuth2 flows in C#

Built OIDC authentication in . NET apps

Integrated Okta/Auth0 using SDKs

Token validation / claims handling

SAML integration inside apps

Position Summary:

The Principal level 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.

Which skills does this role require?

C#.NETASP.NETWeb APIIAMOAuth2OIDCOktaAuth0SAMLSQL ServerMicroservicesAuthenticationAuthorizationSSOAgileIdentity ManagementFederationAPI DevelopmentSoftware ArchitectureUnit TestingPerformance TuningMortgage IndustryWindows ServicesXMLMVCTechnical DocumentationProduction SupportEnterprise SolutionsSecuritySQLMachine Learning

Make your next move

Build a shortlist and prepare

Identify the requirements you can demonstrate, then choose examples from your work to discuss with the hiring team.

Build a focused shortlist before you applyCompare role requirements with your experience and give each application a clear reason.
Backend engineering jobsCompare current openings and review what to look for in this role.
Practice explaining your experience in an interviewRehearse your answers before meeting the hiring team.

Review the responsibilities and requirements before adding an opening to your shortlist.