Company Overview
At Motorola Solutions, we believe that everything starts with our people. We’re a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. We build and connect technologies to help protect people, property and places. Our solutions foster the collaboration that’s critical for safer communities, safer schools, safer hospitals, safer businesses, and ultimately, safer nations. Connect with a career that matters, and help us build a safer future.
Department Overview
We are seeking an experienced Software Engineer to join our core engineering team to design and develop a high-throughput, mission-critical active-active SIP based microservices across multi-site deployments.
Job Description
Key Responsibilities:
Design and architect high-throughput, stateless SIP microservices using Go, achieving strict performance targets such as 5,000+ TPS and sub-15ms latency budgets.
Implement complex protocol translation layers to convert inbound SIP-over-TCP/TLS traffic from load balancers into high-speed SIP-over-ZeroMQ traffic for internal stateless services.
Engineer advanced concurrency models utilizing ZeroMQ Router/Dealer socket pooling and internal thread-bridging patterns to prevent mutex bottlenecks and ensure thread-secure message passing under heavy load.
Integrate distributed state and security mechanisms, including automated cryptographic key rotation using discovery tools for leader election and secured vaults for private key storage.
Enforce surge protection and reliability by building multi-layered throttling, distributed batch schedulers, and exponential backoff handling
Partner with Network and Infrastructure teams to define advanced load balancer routing frameworks, DNS SRV query logic, and implement distributed tracing (OpenTelemetry) for end-to-end observability.
Basic Requirements
Required Skills & Experience:
Knowledge of SIP/VOIP & related telecom protocols.
Deep hands-on experience in Golang (preferr