VoIP/Telecommunications Engineer

Company Description

• Application Opening: Sunday, November 9, 2025
• Application Deadline: This job will close no sooner than Friday, November 14, :59 PM).
• Required Supplemental Questionnaire due at the time of application to be considered for this position:

Are you ready to make an impact in one of the most innovative cities? The Department of Technology (DT) is looking for passionate IT professionals to help shape the future of technology in San Francisco As the centralized technology services provider for the City and County of San Francisco (CCSF), DT delivers critical infrastructure and services to over 33,000 employees—supporting public safety, municipal broadband, cybersecurity, cloud solutions, and more With a $140M+ annual budget and a team of 300+ experts, DT is leading the charge in digital transformation. DT provides services through our core areas of IT Excellence:

• IT Project Management Office
• Enterprise Application Services
• Cloud Center of Excellence
• IT Operations and Support including the Service Desk and NOC
• City Infrastructure including the Network, Telcom and Data Centers
• Office of Cybersecurity including Cyber Defense, Identity Management and Disaster Recovery
• Public Safety Systems and Municipal Broadband Fiber
• SFGovTV Broadcasting Services
• IT Finance and Administration Services
• Emerging Technologies

Why Join Us? Innovative & Impactful Work At DT, you won't just work on IT—you'll power a city. Your expertise will directly impact the residents of San Francisco, from closing the digital divide to ensuring secure, efficient city operations.

Benefits of Working for CCSF: In addition to challenging and rewarding work, the City provides a generous suite of benefits to its employees.

• Competitive pay, benefits, and retirement options
• Career growth opportunities through training, internal mobility, and subsidized education
• Diverse work environment in a diverse city

We offer employees the ability to work from home one day a week while spending the other four days in our San Francisco office, promoting both collaboration and work-life balance.

Join the team that's shaping the future of technology in San Francisco. Apply today and be part of a dynamic, innovative, and mission-driven ITteam

We are committed to ensuring that the City's services are inclusive, efficient, equitable, and culturally competent for San Franciscans of all races, ethnic backgrounds, religions, and sexual orientations. This commitment requires comprehensive review and thorough analysis of existing practices and policies to remove barriers to real inclusion.

We are also committed to ensuring that we have a safe, equitable, and inclusive workplace for individuals of all races. This includes creating opportunities for hiring, promotion, training, and development, for all employees, including but not limited to Black, Indigenous, and people of color (BIPOC).

Job Description

The City and County of San Francisco (CCSF), Department of Technology (DT), is seeking an experienced VoIP/Telecommunications Engineer who will enhance our customer's telephony experience by leading in the planning, building, and running a resilient, scalable, and cost-effective Unified Communications' system for CCSF through the Citywide VoIP Project.

DT's VoIP/Telecommunications team has a long history of providing excellent service to the many departments around CCSF. The team possesses high-level Avaya and Cisco expertise, with experience in migrations, new implementations, upgrades, and ongoing support. The diversity in skillsets and experience is key to ensuring accurate and efficient support of our clients' current environments, as well as vision and passion for the technology on the horizon.

In alignment with CCSF's Telecom Modernization Program, the DT VoIP/Telecommunications team is hard at work to migrate our clients off many different, aging Avaya platforms, and onto a centralized and resilient Cisco Unified Communications infrastructure. We consider the unique needs of each of our clients and make our best efforts to meet their needs accordingly. In addition to regular communications, the team is also looking to centralize its many different contact center platforms into a centralized, Enterprise solution, capable of meeting the needs of all clients who need it.

Essential duties include, but are not limited to, the following:

• Implement and support the Core VoIP System at City datacenters.
• Lead two redundant Cisco Unified Border Element (CUBE) pairs utilizing IP Flex SIP Trunk connections to AT&T.
• Lead CCSF departments utilizing DT's Core VoIP system in coordination with the Telecom team.
• Lead and maintain the City's current Avaya infrastructure.
• Lead the migration of 30+ PBX systems to DT's Core VoIP system.
• Implement and support current and future Multichannel Contact Center systems.
• Lead the planning and implementation of the City's collaboration platform(s).
• Mentor and assist in the training of junior engineers.
• Document procedures, configurations, and troubleshooting techniques related to the Unified Communications (UC) environment.
• Provide 24-hour on-call support to ensure rapid recovery from software or hardware problems for mission-critical systems and networks.
• Perform related duties as assigned.

Appointment Type: Temporary Exempt (TEX) Full Time position is excluded by the Charter from the competitive civil service examination process and shall serve at the discretion of the appointment officer. The anticipated duration of this project position is up to twenty-four (24) months and will not result in an eligible list or permanent civil service hiring. Project-based positions cannot be ongoing or exceed 24months.

Work Location: Incumbent will conduct the majority of work at the Department of Technology, (1 S Van Ness, Ave San Francisco, CA 94103). However, there may be situations where the incumbent will be required to work at other sites throughout the City of San Francisco as necessary.

Qualifications

Education: An associate degree in computer science, computer engineering, information systems, or a closely related field from an accredited college or university OR its equivalent in terms of total course credits/units [i.e., at least sixty (60) semester or ninety (90) quarter credits/units with a minimum of twenty (20) semester or thirty (30) quarter credits/units in one of the fields above or a closely-related field].

Experience: Three (3) years of experience analyzing, installing, configuring, enhancing, and/or maintaining the components of an enterprise network.

Substitution: Additional experience as described above may be substituted for the required degree on a year-for-year basis (up to a maximum of two (2) years). One (1) year is equivalent to thirty (30) semester units/ forty-five (45) quarter units with a minimum of 10 semester / 15 quarter units in one of the fields above or a closely related field. OR Completion of the 1010 Information Systems Trainee Program may be substituted for the required degree.

Desirable Qualifications:

• Strong knowledge of VoIP protocols; SIP, SS7, RTP, TLS, SCCP, H.323, and MGCP.
• Strong knowledge of Unified Communications Manager (CUCM), Unity Connection (CUC), Emergency Responder (CER), Instant Messaging & Presence (IM&P).
• Strong troubleshooting skills in the areas of Unified Communications and Contact Center environments
• Strong understanding of Cisco and or other cloud-based contact center design, implementation, signaling, and operations
• Experience with configuration/deployment/troubleshooting of Cisco Voice Gateways, using both PRI and SIP circuit deployments (8xxx and 44xx series, plus analog VGs)
• Knowledge of contact center scripting best practices, including Webex Contact Center.
• Experience configuring, testing, deploying, and troubleshooting Cisco Webex and Cisco Webex calling (including endpoints)
• Experience configuring, testing, deploying, and troubleshooting Expressway C and E, and configuring MRA
• Experience with Cisco B/C series UCS servers and UCS Manager a plus
• Experience with VMWare ESX 6.x and 7.x
• Knowledge of MS Teams VoIP.
• CCNA/CCNP Collaboration Certification or equivalent knowledge/experience.

Additional Information

How to Apply

Applicants are encouraged to apply immediately as this recruitment may close at any time, but not before November 14, 2025.

• Your application MUST include a resume. To upload, please attach using the "additional attachments" function
• You may contact Elbi Magana via email at with questions regarding this opportunity.
• Complete the Supplemental
• Late or incomplete submissions will not be considered. Mailed, hand delivered or faxed documents/applications will not be accepted.

For best practices on the application process, please visit Apply for Jobs in the City and County of San Francisco Best Practices Guide. Applicants may be contacted by email about this announcement and, therefore, it is their responsibility to ensure that their registered email address is accurate and kept up-to-date. Also, applicants must ensure that email from CCSF is not blocked on their computer by a spam filter. To prevent blocking, applicants should set up their email to accept CCSF mail from the following addresses , , , , , , , , , , , , , , and ).

Applicants will receive a confirmation email that their online application has been received in response to every announcement for which they file. Applicants should retain this confirmation email for their records. Failure to receive this email means that the online application was not submitted or received.

The City and County of San Francisco encourages women, minorities and persons with disabilities to apply. Applicants will be considered regardless of their sex, race, age, religion, color, national origin, ancestry, physical disability, mental disability, medical condition (associated with cancer, a history of cancer, or genetic characteristics), HIV/AIDS status, genetic information, marital status, sexual orientation, gender, gender identity, gender expression, military and veteran status, or other protected category under the law.