Senior End-to-End Cellular Connectivity Engineer

Job Summary

At Moultrie, connectivity isn't a feature — it's the foundation of everything we build. As a Sr. Cellular Connectivity Engineer, you'll own the end-to-end communication stack between our field-deployed cameras and cloud infrastructure, making sure our devices stay connected reliably and efficiently in the real world. 

You'll dig deep into carrier protocols, diagnose issues at the modem and radio layer, and work closely with firmware, application, and cloud teams to optimize how our devices communicate. If you're someone who thrives on complex connectivity problems and cares about getting it right, this is the role for you.

Job Responsibilities

Diagnostics & Protocol Analysis

• 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.

Connectivity Optimization

• 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.

Protocol & Stack Work

• 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.

Standards & Documentation

• 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.

Job Requirements

What You Bring

• 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.

Bonus Points

• 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.

Essential Job Function

Why Moultrie

Our cameras are in the field — on fence posts, in tree stands, deep in the woods — and they need to work. The connectivity problems you'll solve here are real, the stakes are high, and the impact shows up directly in the experience of hundreds of thousands of users. You'll have the autonomy to dig in, the support of a strong engineering team, and the satisfaction of knowing your work makes Moultrie products better for the people who depend on them.