Benefits:

Sick Time

Competitive salary

Diamond Technology is a Technical Services company. We have client who is a large local public organization with an opening for the following position:

JOB TITLE: Sr. VoIP Systems Engineer (Temp Contract - On Site in San Francisco)

NUMBER OF OPENINGS: 1

DESIRED START DATE: May 2026

LOCATION: San Francisco: On Site

DURATION: 2+ years 40 hours a week.

HOURLY RATE: $100ph

Required Qualifications: • Ten (10) or more years of experience supporting Microsoft Teams and Cisco Unified Communications environments. • Strong knowledge of Microsoft Teams administration and troubleshooting. • Proficiency with Cisco Unified Communications Manager (CUCM) and related technologies. • Familiarity with Avaya Communication Manager administration and implementation. • Excellent communication and interpersonal skills. • Ability to consult with city leadership – both elected and appointed – and other key stakeholders to determine and implement the City’s strategic technology direction. • Ability to work independently and collaboratively as part of a team. • Strong analytical and problem-solving abilities. • Bachelors or Masters

Required Experience

• Hands-On Experience: Expert-level experience with Cisco telephony systems and Microsoft Teams, including participation in migration projects, management of VoIP solutions, and work in production environments. • Consulting or Implementation Experience: Experience providing consulting or implementation services for telephony solutions and supporting large-scale voice system migrations. • Experience architecting, supporting, integrating, and migrating Webex Contact Center solutions in public-sector or large enterprise environments, including coordination across multiple departments and stakeholders. • Experience combining technical skills, education, and certifications to effectively support migrations from legacy PBX systems, including Avaya, to modern VoIP platforms.

SkillSet:

• VoIP and Telephony: Understanding of Voice over IP (VoIP) technologies, SIP (Session Initiation Protocol), and enterprise telephony systems. • Networking: Knowledge of networking fundamentals, including IP addressing, routing, quality of service (QoS), and network security. • Microsoft Teams: Familiarity with Microsoft Teams architecture and its integration with Microsoft 365 services - including PowerShell commands. • Cisco Systems: Experience with Cisco Unified Communications Manager (CUCM), Cisco Call Manager, UCCE, UCCX, CER, IM&P, Cisco Unity Connection, CUBE, Cisco ISR, Webex LGW, Webex Calling, Webex Attendant Console, CIMC, VMWare, RedSky. • Avaya Systems: Familiarity with or experience supporting Avaya Communication Manager environments.

Desirable Certifications (preferred)

Microsoft Certifications: • Microsoft Certified: Teams Administrator Associate • Microsoft Certified: Microsoft 365 Enterprise Administrator Expert

Cisco Certifications: • Cisco Certified Network Associate (CCNA) • Cisco Certified Network Professional (CCNP) • Cisco Certified Specialist – Collaboration

AudioCodes Certifications:

• AudioCodes Certified Professional (ACP) or equivalent certification demonstrating expertise with AudioCodes Session Border Controllers (SBCs), media gateways, and integration with Microsoft Teams Direct Routing.

Additional Certifications: • CompTIA Network+ • ITIL Foundation

Key Responsibilities include but are not limited to

• Provide project-based technical support for Microsoft Teams, Cisco Unified Communications, and Webex Calling environments, including troubleshooting and issue resolution during migration and integration activities.

• Support the configuration and administration of Microsoft Teams and Cisco Unified Communications environments in a project context.

• Assist with the deployment, configuration, and validation of new features and updates related to VoIP and unified communications platforms.

• Collaborate with IT staff and City departments to support integration and interoperability between communication systems and enterprise platforms.

• Support Webex Contact Center environments and related integrations, as applicable, including platforms such as Salesforce, ServiceNow, Calabrio, and Webex AI Agent.

• Conduct training sessions and develop documentation to help City administrative and end-user staff effectively utilize VoIP and unified communications solutions.

• Monitor system performance during migration and transition activities and recommend improvements to enhance reliability and efficiency.

• Support change management activities to minimize disruption during system migrations.

• Stay current with industry developments and best practices in unified communications and VoIP technologies.