Senior .Net Developer (AI)

Role Title: Senior .Net Developer (AI)
Duration: 12+ Months
Work Location: Mechanicsburg, PA – Hybrid

Interview Mode: In person interview
Onsite Requirement: Tuesday and Thursday

W2 role only

Required Skills / Mandatory Requirements

• 8+ years of professional software development experience, with at least 5 years in C# / .NET at a senior level.
• Proven track record of delivering independently as a senior contributor or technical lead, ideally on prior contract engagements.
• Microsoft Blazor (Server and/or WebAssembly): component design, state management, and performance.
• REST API design and development (ASP.NET Core Web API), including versioning, error handling, and OpenAPI/Swagger.
• Azure Cosmos DB (NoSQL): data modeling, partition keys, RU optimization, indexing, and change feed.
• Okta integration: SSO, OIDC/OAuth 2.0, token handling, and role- or claim-based authorization.
• Hands-on experience using AI coding assistants and agents (Claude, Cursor, or similar) in real production workflows.
• Strong code review skills, with the ability to spot subtle bugs, security flaws, hallucinated APIs, and over-engineered code.
• Solid knowledge of security best practices (OWASP, secrets management, input validation).

Preferred Skills

• Prompt engineering and agent workflow design (rules files, context management, tool use).
• Experience with the Claude API or Model Context Protocol (MCP).
• CI/CD with Azure DevOps or GitHub Actions, and automated testing (xUnit, bUnit, integration tests).
• Azure services such as App Service, Key Vault, and Application Insights.
• Experience building internal developer tools or platforms.

Bonus: Claude Certifications (Nice to Have, Not Required)

Candidates holding any of the following will be viewed favorably:

• Claude Certified Architect (Foundations or Professional), Anthropic’s proctored certification for designing production solutions with Claude.
• Claude Certified Developer or Claude Certified Associate, from Anthropic’s official Claude Certification Program.
• Anthropic Academy course certificates (e.g., Building with the Claude API, Introduction to Model Context Protocol, Claude Code, AI Fluency).

Key Responsibilities

• Review and validate AI-generated code and other output (Claude, Cursor) for correctness, security, performance, and maintainability.
• Decide how to handle each AI output: approve as-is, refactor, discard, or escalate for human or specialist review.
• Define and refine review criteria, guardrails, and quality checks for agent-generated output.
• Design and optimize Cosmos DB data models, partitioning strategies, and queries.
• Build and secure REST APIs, integrating authentication and authorization through Okta (OIDC/OAuth 2.0).
• Write effective prompts and agent instructions, and give feedback to improve output quality.
• Document decisions, patterns, and review criteria so the knowledge stays with the team after the engagement ends.
• Collaborate with product owners, architects, and security teams.
• Design, build, and maintain features using Blazor, .NET, and REST APIs.

Regards,
Shashank Jaitly