C#/.NET Developer

Role: C#/.NET Developer
Location: New York, NY - Hybrid
Duration: 12-month contract

Let’s create our future together at The AES Group!

About The AES Group

The AES Group is a premier technology staffing and services company that has been bringing businesses and talent together for over 20 years to deliver innovative technology solutions that create meaningful impact. AES helps enterprises, including Fortune 500 organizations, engage customers, empower employees, and transform operations through cloud, data, AI, and emerging technologies.

What you’ll get

• Hybrid schedule in New York, NY

• Work on high-scale, high-traffic server-side systems supporting multiple client types

• Collaborate with global engineering teams on performance, reliability, and distributed architecture

• Opportunity to solve complex problems at scale in a product environment where engineering quality matters

About the Role

We are seeking C#/.NET Developer who treat software development as a craft—engineers who enjoy building reliable systems, improving performance, and delivering scalable server-side capabilities. In this role, you’ll help create and enhance high-volume backend features, design robust web services, and contribute to distributed server systems that support console clients, browser clients, and external server integrations.

Key Responsibilities

• Build and enhance high-volume, highly scalable server-side features using C#, .NET, Windows Server, IIS, SQL Server (MSSQL)

• Design and develop web services/APIs supporting game console clients, browser clients, and external server clients

• Contribute to the development of highly reliable distributed server systems, including fault tolerance and resiliency improvements

• Drive web performance optimization, including profiling, tuning, and reducing latency under load

• Apply best practices for scalability, security, and performance across service and API layers

• Partner with engineering stakeholders and collaborate with technology teams across worldwide

• Participate in Agile ceremonies and work in an iterative, delivery-focused environment

• Maintain clean, maintainable code using solid OO design principles and proven design patterns

• Use source control (preferably Perforce) with strong discipline around branching, merging, and review workflows

Required Qualifications

• 6+ years of experience building scalable distributed systems in production environments

• Strong expertise in C#/.NET (and/or C++ as a plus depending on project alignment)

• Excellent computer science fundamentals, including deep knowledge of object-oriented design patterns and concepts

• Proven experience with API design and development (REST and service-oriented patterns)

• Strong understanding of web service scalability, performance, and security practices

• Solid database development experience with Microsoft SQL Server (MSSQL)

• Hands-on experience with source control, ideally Perforce

• Working knowledge of Agile software development processes

Nice to Have (Preferred)

• Experience building services that support multiple client types (console/mobile/web/external services)

• Experience tuning IIS/.NET applications for performance and throughput

• Background in large-scale consumer platforms, gaming, media, or high-traffic digital products

Ready to make an impact? Apply now and join us on our journey!