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VoIPTelecommunications Engineer Department of Technology (1043)
VoIPTelecommunications Engineer Department of Technology (1043)City and County of San Francisco • San Francisco, California, USA
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VoIPTelecommunications Engineer Department of Technology (1043)

VoIPTelecommunications Engineer Department of Technology (1043)

City and County of San Francisco • San Francisco, California, USA
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The City and County of San Francisco (CCSF) Department of Technology (DT) is seeking an experienced VoIP / Telecommunications Engineer who will enhance our customers 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.

DTs 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 CCSFs 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 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 DTs Core VoIP system in coordination with the Telecom team.
  • Lead and maintain the Citys current Avaya infrastructure.
  • Lead the migration of 30 PBX systems to DTs Core VoIP system.
  • Implement and support current and future Multichannel Contact Center systems.
  • Lead the planning and implementation of the Citys 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 Questionnaire : 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.

    Remote Work : No

    Employment Type : Full-time

    Key Skills

    Marketing & Promotions,Attorney At Law,Jni,Airlines,Art

    Experience : years

    Vacancy : 1

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