AWS​/.NET Senior Developer

About Us

CCT is headquartered in Tulsa, Oklahoma, developed Casino Insight, an award-winning platform designed to automate cage operations, revenue audits, and operational analysis. With robust integration into leading casino management, hospitality, and financial systems, Casino Insight significantly enhances operational efficiency by minimizing manual processes and reducing paper waste. Since its inception in 2012, the platform has empowered over 300 casinos worldwide to optimize productivity and streamline financial operations.

We're seeking a Senior .NET Developer to guide the modernization of a Windows Forms application, migrating it from on-premises infrastructure to AWS while transforming a tightly-coupled client-server architecture into a scalable, cloud-native solution. You'll help design and implement the migration strategy while mentoring the development team, directly enabling the next steps of our product evolution.

• Mentor mid and junior-level developers through code reviews, pair programming, and knowledge transfer on modern .NET practices and cloud architecture
• Refactor C# .NET Framework codebases to modern .NET (8+), addressing technical debt and tight coupling
• Troubleshoot and resolve performance issues (DB and App).
• Lead end-to-end modernization of legacy Windows Forms applications, designing migration paths that balance risk and business continuity
• Translate advanced T-SQL logic—stored procedures, complex queries, functions—into application-layer code, AWS services, or optimized cloud database patterns
• Optimize SQL Server workloads for cloud migration: lift-and-shift to RDS, refactoring to Aurora, or decomposition into microservices
• Help establish coding standards, architectural patterns, and CI/CD practices that support long-term maintainability

• 8+ years of professional C#/.NET development with deep Windows Forms experience
• Expert-level T-SQL and SQL Server skills
  —complex stored procedures, query optimization, schema design
• Proven legacy modernization experience
  : refactoring monoliths, managing technical debt, migrating .NET Framework to modern .NET
• Strong software engineering fundamentals: clear understanding of software design patterns, SOLID principles, automated testing
• Experience with Git, CI/CD pipelines, and mentoring developers
• Profiling and benchmarking. Experience with memory dump analysis (e.g. Win Dbg) is a plus.

• Production AWS experience with RDS/Aurora, Lambda, ECS/EKS, VPC networking, IAM, AWS DMS
• Event-driven architectures (Event Bridge, SNS/SQS), API development (REST, Graph
  
  QL)
• Containerization (Docker, Kubernetes), infrastructure-as-code (Terraform, Cloud Formation)

Join a collaborative team that values learning and pragmatic problem-solving. This role balances hands-on development with mentorship—expect significant time pair programming and helping teammates through complex challenges. You’ll work closely with a team of 6 (an application architect, 2 application developers, and 3 data engineers) and collaborate regularly with product and QA to deliver solutions. We encourage open discussion of technical approaches, welcome healthy debate, and make decisions collectively.