Sr. Software Engineer (.NET Core/C#/Azure) contract-to-hire

** To maintain strong team cohesion and operational continuity, candidates must be based in the Greater Chicago Area

and commit to a hybrid schedule (1-3 days/week on-site). All applicants must possess unrestricted work authorization in the United States. Please ONLY apply if you meet these criteria. **

Senior Software Engineer (.NET Core/C#/Azure) | Enterprise SaaS FinTech

Ready to own the platform that powers financial clarity for businesses ranging from mid-market growth companies to Fortune 500 enterprises. As a Sr Software Engineering Consultant with the Judge Group, placed onsite with our valued client, you won’t just write code—you will own full-stack feature delivery across front-end, server-side, and database tiers. Leveraging Azure to craft resilient, high-throughput cloud solutions, you will shape technical direction, drive engineering excellence, and mentor peers within a high-accountability "You-Build-It-You-Run-It" (YBIYRI) engineering culture.

At-a-Glance Snapshot

• Role: Sr. Software Engineer (.NET Core/C#/Azure)
• Experience Level: 7+ years of application development experience
• Tech Ecosystem: C#, ASP.NET Core, Azure Cloud Services, Azure DevOps (CI/CD), MS SQL Server, Modern JS Frameworks, TDD/BDD
• Culture: High-impact SaaS growth, engineering-led, YBIYRI ownership model with full lifecycle delivery
• Scope: Full-stack development, cloud architecture, automated testing, observability, and production support

Why Join Our Client?

Our client provides mission-critical enterprise financial software used by global market leaders. You will enter an environment that values deep technical ownership, continuous modern software practices, and professional development.

• Full-Stack Technical Ownership: Own features end-to-end—from modern UI components to back-end microservices, database schemas, and CI/CD pipelines.
• Modern Azure Stack: Design and deploy resilient, cloud-native services using Azure DevOps, feature flagging, and modern observability tooling.
• Collaborative & Mentorship-Driven Culture: Lead technical design reviews, champion TDD/BDD, and mentor engineers while directly influencing platform architecture.

Your Impact (The "Power" Bullets)

In this senior full-stack engineering role, you will:

• Architect & Deliver Full-Stack Features: Partner with architects and product managers to design, estimate, and deploy robust capabilities across C#/.NET Core, database, and front-end tiers.
• Leverage Native Azure Services: Build scalable, resilient SaaS solutions utilizing modern Azure cloud patterns, automated deployment pipelines, and feature management.
• Drive Quality & Testing Rigor: Champion Test-Driven Development (TDD) and Behavior-Driven Development (BDD) alongside performance and security testing to ensure production readiness.
• Maintain Observability & Operational Excellence: Utilize advanced logging and monitoring tools to diagnose issues, maintain system health, and participate in a true YBIYRI operational model.
• Elevate Team Standards: Conduct code reviews, refine user story estimation, and mentor mid-level engineers across agile methodologies and modern software patterns.

What You Bring

We are seeking an established full-stack developer who balances deep Microsoft ecosystem expertise with modern cloud practices.

• Core Experience: 7+ years of professional application development experience (Bachelor’s in CS or equivalent experience).
• Microsoft & Cloud Mastery: Deep expertise in C#, ASP.NET / ASP.NET Core, and Microsoft SQL Server .
• Azure & CI/CD Pipelines: Hands-on experience with Azure Services, Azure DevOps , automated CI/CD pipelines, and feature flag management.
• Front-End & Testing Practices: Strong proficiency in modern JavaScript frameworks paired with applied TDD/BDD methodologies.
• Operational Mindset: Proven troubleshooting abilities in production environments, understanding of Windows OS principles, and comfort in an on-call pager rotation.
• Bonus: Background or domain experience within financial technology, SaaS finance, or enterprise banking systems.

Ready to Build Next-Generation Financial SaaS Platforms?

If you thrive on solving complex distributed system challenges and driving full-stack engineering excellence, we want to hear from you.