SG2 Recruiting is supporting Wind RiverX in the search for a Senior Network Protocol / Software Engineer to support a classified aerospace and defense program in Grand Rapids, Michigan. This customer-facing technical leadership role combines hands-on protocol development with solution architecture, customer engagement, system integration, and deployment support. Candidates must possess an active Secret clearance, have 5+ years of network protocol and engineering experience.

What You Will Be Doing:

• Designing, developing, and testing networking software and protocols for mission-critical aerospace and defense systems.

• Supporting customer engagements including requirements gathering, solution architecture, implementation, testing, and deployment.

• Developing and maintaining Layer 2 and Layer 3 networking capabilities for routers, gateways, and secure communications platforms.

• Implementing and supporting protocols including IPv4, IPv6, ARP, ICMP, IGMP, DHCP, TCP, UDP, NTP, IPsec, and IKE.

• Analyzing and optimizing Ethernet traffic, network performance, and protocol functionality.

• Collaborating with engineering teams, mentoring developers, and creating technical documentation.

What You Need:

• Active Secret security clearance.

• 5+ years of experience developing networking protocols, networking software, or embedded networking solutions.

• Strong knowledge of OSI Layers 2–7, with expertise in Layer 2 and Layer 3 networking.

• Experience with network routers, gateways, Ethernet networking, and network security protocols.

• Proficiency in C/C++ development within Linux or embedded environments.

• Experience implementing or integrating IPv4, IPv6, and IPsec-based solutions.

• Excellent communication skills and ability to interact directly with customers and technical stakeholders.

It's a Plus If You Have:

• Experience supporting classified defense, aerospace, or military programs.

• Familiarity with Neighbor Discovery (ND), VLANs, and advanced routing technologies.

• Experience with real time operating systems (RTOS), embedded systems, or secure communications platforms.

What's In It For You:

• Work on advanced aerospace and defense technologies supporting national security missions.

• Influence the design and development of next-generation networking solutions.

• Join a collaborative team focused on innovation, technical excellence, and customer success.

About the Company

Wind RiverX delivers advanced software and engineering solutions for mission-critical aerospace, defense, and intelligent edge systems, supporting some of the world's most demanding operational environments.