IS Engineer-Principal - Department of Technology (1044)

Company Description

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 IT team!  

Job Description

Under general direction, provides direct ongoing supervision to other IS Engineers. and/or provides technical leadership and direction and assumes technical responsibility for completion of major projects or serves as the top technical authority for one or more related specialties. Performs and reviews complex work involving analysis, planning, designing, implementation, maintenance, troubleshooting and enhancement of complex large systems or networks consisting of a combination that may include LANS, WANs and the physical and logical components that integrate these systems together as an enterprise networking backbone. Serves as the lead technical architect and systems integrator for large complex systems or networks. 

Essential Duties Include: 

• Design, deploy, maintain, upgrade, and troubleshoot network infrastructure, including Cisco Catalyst 9XXX, Cisco Nexus, ASA55XX, Cisco VPN Appliances, Cisco/Meraki Wi-Fi, Cisco ACI Fabric, and Cisco ISE.
• Configure and support security technologies such as Palo Alto NGFW, Palo Alto GlobalProtect, and CISCO ASA.
• Utilize and manage DNS/DHCP services using Infoblox in complex enterprise environments.
• Design and implement enterprise-level routing protocols, including OSPF, EIGRP, and BGP, ensuring high availability and optimal performance.
• Apply advanced understanding of all layers of the Open Systems Interconnection (OSI) model when diagnosing, designing, and optimizing network performance.
• Integrate, test, implement, and enhance the physical and logical components of complex systems and networks across multiple platforms and technologies.
• Perform advanced network diagnostics using tools such as Fluke network analyzers and other industry-standard troubleshooting utilities.
• Manage and deploy fabric-enabled networks using Cisco DNAC and related orchestration platforms.
• Oversee disaster recovery planning, network backup procedures, and enforcement of security policies.
• Provide Network support after-hours on-call rotation to ensure system availability and performance.
• Validate network specifications and equipment configurations in accordance with business requirements, standard operating procedures, and industry best practices.
• Collaborate with cross-functional teams including Systems Engineers, Cybersecurity staff, Application Developers, and Network Operations to ensure seamless integration of services.
• Ensure compliance with network documentation, policies, and procedures while contributing to the development of