Senior Staff Software Engineer

Company Overview

At Motorola Solutions, we're guided by a shared purpose - helping people be their best in the moments that matter - and we live up to our purpose every day by solving for safer. Because people can only be their best when they not only feel safe, but are safe. We're solving for safer by building the best possible technologies across every part of our safety and security ecosystem. That's mission -critical communications devices and networks, AI-powered video security & access control and the ability to unite voice, video and data in a single command center view. We're solving for safer by connecting public safety agencies and enterprises, enabling the collaboration that's critical to connect those in need with those who can help. The work we do here matters.

Department Overview

At Motorola Solutions, we are building the mission-critical services, software, video and access control, backed by secure, resilient land mobile radio communications - we advance it every day through our commitment to innovation. Our drive for continuous innovation and partnership with our customers enables them to be ready - in the day-to-day moments, and in the moments that matter most.

You will be a part of The Interop Service team which is working on a very high intensive and key core functional module, Server team handles Call Processing, PTT floor control functionality (RTP & RTCP) & Media in compliance to the mission critical standards & features. Interop Service team creates the products and solutions to provide interop operations with telephony, radio and broadband devices.

Job Description

We're seeking an experienced Senior Call Processing Engineer with a strong background in JAVA & C++ to join our team. The successful candidate will lead the design, development, and optimization of call processing systems, ensuring seamless and efficient voice communications across our network.

Basic Requirements

Key Areas of Responsibilities:

- Lead the design and development implement scalable microservices-based call processing architectures.
- Architect and implement complex call routing, and call control mechanisms
- Develop and optimize call processing algorithms, including goroup call
- Collaborate with cross-functional teams to ensure call processing aligns with overall network architecture and product roadmap
- Troubleshoot and resolve complex call-related issues, including call drops, misrouted calls, and audio quality problems
- Develop and maintain technical documentation for call processing systems and procedures
- Mentor junior engineers and provide technical guidance on call processing.
- Stay up-to-date with industry developments and emerging trends in VOIP, SIP, RTP, and call processing

Skills/Competencies:

- 8+ years of experience in call processing, Messaging, VOIP engineering, or a related field
- Proficiency in Java & C++ programming, including multithreading, sockets, and memory management
- In-depth knowledge of SIP, RTP, VOIP protocols and network protocols (TCP/IP, UDP, DNS, DHCP)
- Experience with public-key cryptography libraries (e.g., OpenSSL, WolfSSL) and protocols (e.g., TLS, IPsec)
- Experience with call processing platforms, such as Asterisk, FreeSWITCH, or Cisco CallManager
- Experience with network troubleshooting tools (e.g., Wireshark, Tcpdump) and debugging techniques
- Strong leadership and team management skills, with experience in mentoring junior engineers
- Excellent communication, documentation, and presentation skills
- Good to have experience with cloud-based call processing platforms

Travel Requirements

None

Relocation Provided

None

Position Type

Experienced

Referral Payment Plan

No

Motorola Solutions is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion or belief, sex, sexual orientation, gender identity, national origin, disability, veteran status or any other legally-protected characteristic.

We are proud of our people-first and community-focused culture, empowering every Motorolan to be their most authentic self and to do their best work to deliver on the promise of a safer world. If you'd like to join our team but feel that you don't quite meet all of the preferred skills, we'd still love to hear why you think you'd be a great addition to our team.

We're committed to providing an inclusive and accessible recruiting experience for candidates with disabilities, or other physical or mental health conditions. To request an accommodation, please email .