- Company Name
- Ryan Consulting Group, LLC
- Job Title
- Senior Dotnet Developer
- Job Description
-
Job Title: Senior C# Software Engineer (Backend & API Security)
Role Summary: Design, develop, and secure high‑performance REST and gRPC APIs using C# and ASP.NET Core. Apply zero‑trust principles, ensuring OAuth2/OIDC, JWT, mTLS, and TLS configurations are enforced end‑to‑end. Build cloud‑native services for AWS Lambda or Kubernetes, automate infrastructure via IaC, and oversee secure logging and threat modeling.
Expectations:
- 12‑month contract, W2 employment required across the US
- Hourly compensation $60‑$70 per hour
- Demonstrated experience in API security and cloud deployment
- Strong collaboration in security reviews, testing, and automation
Key Responsibilities:
- Develop and maintain secure REST/gRPC APIs in C#/.NET 6+
- Configure API Gateways, Identity Providers, and mTLS for authentication/authorization
- Perform threat modeling, security reviews, and OWASP Top 10 compliance checks
- Write unit and integration tests with a focus on security validation
- Automate certificate, secret, and infrastructure provisioning using Terraform or CloudFormation
- Implement secure logging with Serilog/NLog and integrate with Splunk, ELK, or CloudWatch
- Document architecture and security decisions for audit readiness
Required Skills:
- C#/.NET ≥6, ASP.NET Core
- OAuth2, OIDC, JWT, mTLS, X.509 certificates
- AWS services: Lambda, API Gateway, IAM, Secrets Manager
- Containerization (Docker) and orchestration (Kubernetes)
- Infrastructure as Code: Terraform, CloudFormation
- Defensive coding, input validation, and secure logging practices
- Familiarity with Splunk, ELK stack, or CloudWatch
Preferred Skills:
- IdentityServer/ Duende framework
- Service mesh (Istio, Linkerd) for mTLS
- Knowledge of OWASP Top 10 and API security best practices
Required Education & Certifications:
- Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience
- No mandatory certifications, but AWS or .NET related credentials are advantageous.
Charlotte metro, United states
Hybrid
Senior
31-12-2025