Senior Network Engineer

Moultrie is a trusted name in game feeders and wildlife cellular camera innovation, headquartered in Birmingham, Alabama. The Senior Cellular Connectivity Engineer will own the communication stack between field-deployed cameras and cloud infrastructure, ensuring reliable and efficient connectivity while diagnosing issues at the modem and radio layer.

Responsibilities:

• Analyze and interpret carrier-level protocol behavior to identify and resolve connectivity issues at the modem and radio layer
• Capture and dissect network traffic to diagnose packet-level anomalies, protocol misconfigurations, and communication inefficiencies between cameras and backend servers
• Trace issues across the full stack — from the device modem through the carrier core network to the application server — and isolate where things are breaking down
• Monitor and evaluate the full communication path between edge camera devices and cloud infrastructure, ensuring protocol conformance, message integrity, and session stability
• Design, evaluate, and tune retry policies and reconnection logic to maximize connection reliability while minimizing unnecessary radio activity and preserving battery life
• Investigate and resolve bottlenecks related to carrier network behavior and internet and application-layer inefficiencies
• Work with application and firmware teams to optimize MQTT broker and client configurations
• Analyze TCP/IP stack behavior in constrained cellular environments
• Collaborate with cloud and backend engineers
• Contribute to defining and enforcing communication design standards for new camera hardware and firmware revisions
• Produce detailed diagnostic reports, root cause analyses, and optimization recommendations for internal engineering teams and external stakeholders

Requirements:

• Hands-on experience with modem-level diagnostics and log capture and analysis
• Proficiency with deep packet inspection and protocol analysis across multiple layers
• Strong understanding of cellular carrier protocols
• Familiarity with carrier-specific behaviors as they relate to IoT device connectivity
• Solid understanding of TCP/IP, including IP addressing, routing, flow control, congestion avoidance, and connection lifecycle management
• Experience working with MQTT in IoT deployments
• Practical experience analyzing and debugging client-server communication flows for IoT or embedded devices
• Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, Telecommunications, or a related field — or equivalent hands-on experience
• 5+ years of deep LTE-M/NB-IoT experience
• Experience with LTE-M or NB-IoT deployments in commercial IoT products
• Hands-on experience with Microsoft Azure IoT services
• Familiarity with FOTA update protocols and their impact on connectivity resources
• Experience with embedded Linux or RTOS environments in cellular-connected devices
• Background in camera systems, surveillance technology, or field-deployed IoT hardware
• Scripting or automation experience
• Knowledge of 3GPP specifications relevant to IoT device behavior