Systems Engineer (Cisco-Voice)

Convirgence; Virginia (MN); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Healthcare coverage

401(k) matching

Tuition reimbursement

Paid holidays and vacation

Job summary

Convirgence in Dulles, VA seeks a Systems Engineer (Cisco-Voice) to design, deploy, and secure enterprise Cisco Unified Communications in a high-security government environment.

You will lead voice infrastructure projects, manage SIP trunking and call center tech, and collaborate with network and telecom teams to meet mission-critical requirements.

Benefits include healthcare, retirement matching, and ongoing training to keep certifications current.

Qualifications

• Degree in CS/IT/Engineering or related field.
• 6+ years in Voice/UC engineering.
• Expert-level SIP/SRTP/DNS/DHCP/TCP/IP knowledge and call routing skills.
• Experience leading enterprise-scale voice deployments.
• Strong stakeholder communication and technical leadership.

Responsibilities

• Design, test, and deploy Cisco Voice infrastructure (CUCM, Unity, IM&P, UCCX).
• Implement next-generation voice systems and support first article engineering.
• Participate in security accreditation for voice systems.
• Manage PKI/certificates across UC components.
• Perform upgrades, patches, and lifecycle maintenance.
• Support site standups with dial plan design and endpoint provisioning.
• Design/deploy call center tech (UCCX/UCCE) and train users.
• Handle call routing, SIP trunking, SRST, CUBE, gateways.
• Collaborate with customers and internal teams; ensure compliance.
• Work within large enterprise IT focusing on Cisco Voice and UC.
• Partner with network/telecom teams on integration projects.
• Support VoIP devices, encryption, and call management servers.

Skills

SIP signaling

SRTP

SIP

MGCP

H.323

TCP/IP networking

MPLS

DNS/DHCP

RTP handling

Enterprise voice deployment

Communication leadership

Education

Bachelor's or Master's in Computer Science/IT/Engineering

Tools

CUCM

Unity Connection

IM&P

UCCX

UCCE

SRST

CUBE

Job description

Systems Engineer (Cisco-Voice)

Dulles, VA

CB-SECV-DUL-001

We are seeking experienced Cisco Voice Engineers to support a mission-critical, technology-driven program for a key Government customer. This role focuses on designing, deploying, securing, and sustaining enterprise-level Cisco Unified Communications solutions across a complex, highly secure environment.

Key Responsibilities:

• Design, test, and deploy new Cisco Voice infrastructure (CUCM, Unity Connection, IM&P, UCCX).
• Implement next-generation voice system technologies and support first article engineering.
• Participate in security accreditation activities for all voice systems.
• Manage PKI/certificate requirements across Cisco UC components.
• Perform system upgrades, patching, and lifecycle maintenance for hardware and software.
• Provide engineering support for new site standups, including dial plan design and endpoint provisioning.
• Design, test, and deploy call center technologies (UCCX/UCCE), including user training and transition planning.
• Execute tasks related to call routing, SIP trunking, SRST, CUBE, and gateway configuration.
• Collaborate with customers and internal teams to gather and refine system requirements.
• Ensure compliance with enterprise standards, policies, and security procedures.
• Work within a large-scale enterprise IT environment with responsibilities specific to Cisco Voice and Unified Communications.
• Partner with network engineering and telecom teams on integration activities involving telephony, call center systems, and network infrastructure.
• Support secure communications devices and infrastructure, including VoIP phones, STEs, Viper phones, encryption devices, POTS/ISDN/leased lines, conference bridges, and call management servers.

Required Education, Experience, & Skills:

• Bachelor's or Master's degree in Computer Science, IT, Engineering, or related field
• Minimum of six (6) years of progressive experience in Voice/UC engineering
• Expert-level proficiency in: SIP signaling and call flows; Secure Real-Time Transport Protocol (SRTP); SIP, MGCP, H.323; TCP/IP networking; MPLS transport environments; DNS and DHCP; RTP media handling
• Demonstrated experience leading enterprise-scale voice deployments and modernization efforts
• Proven ability to troubleshoot complex, multi-layered call routing and signaling issues
• Strong communication skills for stakeholder engagement, documentation, and technical leadership

Preferred Education, Experience, & Skills:

• Expertise in SIP signaling, call flows, and multi-vendor integration
• Hands-on experience with H.323 in mixed-protocol environments
• Cisco Certified Collaboration Professional (CCCP) or equivalent Cisco Collaboration certifications
• CCNP Collaboration
• CCIE Collaboration (highly desirable)
• Avaya Communications Certification or experience supporting Avaya platforms in hybrid Cisco/Avaya environments
• Experience with secure communications devices (VoIP endpoints, STEs, Viper phones, encryption devices)
• Familiarity with government security accreditation processes and PKI/certificate management
• Experience designing or supporting call center technologies (Cisco UCCX/UCCE or Avaya equivalent)
• Prior experience in a DoD, IC, or other high-security environment

Healthcare

Convirgence pays 100% of the monthly premiums for family coverage for the health care benefit (medical, dental and vision)

401K

Convirgence will match the employees contribution up to 6% of their salary vested immediately

Training

$5,000 in tuition and continuing education reimbursement.

Vacation

All Federal Government Holidays (11 days/80 hours), plus four weeks of vacation per year (20 days/160 hours)