Senior / Tech Lead.NET Core Developer (C#)...

(for a U.S.-based eCommerce technology company modernizing its fulfillment and logistics platforms)

About the Role

We’re seeking a Staff .NET Core Developer (C#) to design, build, and scale the internal systems that power one of the nation’s fastest-growing eCommerce logistics operations. You’ll work on complex, high-impact applications that connect digital tools with real-world fulfillment center technology — optimizing how inventory, orders, and operations flow across the network.

This is a hands-on technical leadership role — ideal for an engineer who combines strong architectural instincts with a builder’s mindset. You’ll shape foundational systems, mentor other developers, and collaborate across product, UX, and data teams to deliver stable, scalable, and future-ready software.

Responsibilities

• Design and develop backend systems and APIs using .NET Core (C#).
• Lead architectural discussions around scalability, performance, and maintainability.
• Partner with product managers, UX, and data engineers to translate operational requirements into technical solutions.
• Contribute to system modernization and codebase evolution, introducing best practices and automation.
• Support AI-assisted development initiatives to accelerate delivery and quality.
• Mentor mid-level developers and help elevate engineering standards across the team.
• Ensure reliability and observability through thoughtful design, testing, and monitoring.

Requirements

Preferred Qualifications

What You’ll Love