Senior Staff Software Engineer
Motorola Solutions · Posted Oct 15
Mission-critical communications, command center software, and video security solutions for public safety and enterprise
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About the role
Motorola Solutions is a global company that builds and connects technologies to help protect people, property and places. The core engineering team designs and develops high-throughput, mission-critical active-active SIP based microservices across multi-site deployments. This role involves architecting stateless SIP microservices in Go, building protocol translation layers and concurrency models, integrating distributed state and security mechanisms, and implementing distributed tracing for end-to-end observability.
What you will do
- 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-safe 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.
Skills used in this role
What the employer is looking for
- Knowledge of SIP/VOIP & related telecom protocols.
- Deep hands-on experience in Golang (preferred) and proficiency in c++/c
- Strong computer science fundamentals, data structures, and algorithms.
- Deep understanding of distributed systems, multi-threading, concurrency control, stateless proxies and Finite State Machines (FSM).
- Hands-on expertise with networking and messaging protocols including gRPC and RabbitMQ.
- Strong background with distributed databases like Apache Ignite and GridGain.
- Practical knowledge of persistence and caching solutions such as PostgreSQL, Redis, and ElasticSearch.
- Excellent written and verbal communication skills for technical documentation and explaining complex ideas.
- Industry Experience - 8+ years
Benefits and support
- Compensation and benefits are detailed in the job posting
About Motorola Solutions
Motorola Solutions is a global leader in public safety and enterprise security, specializing in mission-critical communications, command center software, and video security solutions. The company empowers communities and organizations by building and connecting technologies that enhance safety, operational efficiency, and situational awareness worldwide. Formed as the legal successor to the original Motorola following its 2011 corporate split, Motorola Solutions serves government agencies, public safety departments, and commercial enterprises across more than 100 countries.
- Industry
- Telecommunications
- Company size
- 10001+ employees
- Founded
- September 25, 1928
- Location
- Chicago, Illinois, USA
- Funding stage
- Public Company
Leadership
Chairman and Chief Executive Officer
Executive Vice President and Chief Financial Officer
Executive Vice President and Chief Operating Officer
Executive Vice President and Chief Technology Officer
Senior Vice President, Strategy & Ventures
Recent coverage
Motorola Solutions Newsroom
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Investing.com
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BigGo
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