Sr .Net Developer (No C2C)

Senior Software Engineer- TEMP to PERM

Due to federal customer, must be US Citizen or Green Card holder to be eligible

Summary:

The engineer will design and develop systems that let our customers run millions of transactions daily. The design decisions and judgment calls you make will impact millions of indirect customers in North American and US territories.

The Work:

Create designs, code, tests in-line with approved architecture and engineering processes and best practices.

Manage availability, latency, scalability by engineering reliability into software and systems

Identify and resolve production issues as needed

Respond to and resolve emergent problems; write software, build and deploy automation to prevent problem recurrence

Must Have Skills

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• 5–8 years of professional experience in software development with increasing responsibilities (developer, lead, ++).
• Fluency in C# and deep expertise with .NET Core 6.0+ for building scalable, high-performance applications.
• Strong server-side development skills, particularly in multi-threaded, concurrent, and high-throughput environments.
• Proven knowledge of synchronous vs. asynchronous programming, async/await patterns, parallelism, and thread vs. task usage.
• Hands-on experience with Entity Framework (EF) or other ORM tools for data access.
• Proficiency in applying design patterns (e.g., Singleton, Factory, Strategy, Repository, Dependency Injection) in real-world applications.
• Hands-on experience with Microsoft Azure services, especially:
• Azure App Services, Azure Functions, Azure Cosmos DB, Azure Service Bus, Azure Event Hub, Azure Redis Cache, Azure Storage Accounts, Azure Key Vault, and Azure App Configuration.
• Experience in deploying and maintaining applications in Azure Kubernetes Service (AKS).
• Strong understanding of unit testing frameworks (e.g., MSTest, xUnit, NUnit) and ability to deliver highly testable and maintainable code.
• Proven experience in implementing resiliency patterns such as retry, fallback, and circuit breaker.
• Familiarity with DevOps practices including CI/CD pipelines, automated testing, and monitoring in Azure DevOps or equivalent tools.
• Hands-on experience working in agile development teams (Scrum/Kanban).
• Strong problem-solving and debugging skills in complex distributed systems.
• Excellent communication and collaboration skills to work effectively with cross-functional teams.
• 4+ years of experience building high-performance SQL Server applications with EF optimizations (e.g., compiled queries, lazy/eager loading strategies).
• Familiarity with NoSQL/Document databases such as Cosmos DB or MongoDB, and trade-offs between relational vs. non-relational data stores.
• Extensive experience in writing automated tests (unit, integration, performance, and load tests).
• Knowledge of test-driven development (TDD)

Desired Skills

• 5+ years of experience in designing and building RESTful APIs and integration solutions with strong focus on security, scalability, and maintainability.
• Understanding of API versioning, throttling, and best practices for large-scale service integration.
• Strong grasp of system architecture concepts: event-driven architecture, microservices, domain-driven design (DDD), and cloud-native design.
• Knowledge of dependency injection frameworks, interface-driven programming, and event-driven programming models.
• Experience designing for resilience, scalability, and observability in cloud-native applications.
• Exposure to modern JavaScript frameworks (Angular, React, or Vue) for building interactive user interfaces is a plus.
• Experience with containerization (Docker) and orchestration in Kubernetes beyond just deployment (e.g., scaling, monitoring, security).

Interview Process

• Completion of an online coding test- Resume and test result review by the technical hiring manger upon completion of the test
• 45-60 minute technical screen with the hiring manager
• Final technical deep dive interactive interview with the team that will include a programming test