BAE Systems

Eng Sr Prin II - Sys

BAE Systems • $120K — $150K *
Herndon, VA 20171In-Person
Telecommunications & Hardware
8 - 10 years of experience
Today
Be an Early Applicant
Job Overview by Ladders

Qualifications

  • Bachelor's or Master's degree in Computer Science, IT, Engineering, or related field with 11+ years of experience
  • Minimum of 8 years in Voice/UC engineering
  • Expert-level proficiency in SIP signaling, SRTP, MGCP, H.323, TCP/IP networking, MPLS, DNS, and DHCP
  • Experience leading enterprise-scale voice deployments and modernization efforts
  • Skilled in troubleshooting complex call routing and signaling issues
  • Strong communication skills for stakeholder engagement and documentation

Responsibilities

  • Design, test, and deploy Cisco Voice infrastructure (CUCM, Unity Connection, IM&P, UCCX)
  • Implement next-generation voice system technologies and support engineering efforts
  • Participate in security accreditation for all voice systems
  • Manage PKI and certificate requirements for Cisco UC components
  • Execute system upgrades, patching, and lifecycle maintenance
  • Support new site standups and dial plan design
  • Collaborate with teams to gather and refine system requirements

Benefits

  • Comprehensive health insurance
  • Retirement savings plan with employer matching
  • Opportunities for career development and training
  • Flexible working arrangements
  • Access to cutting-edge technologies and tools
Full Job Description
Job Description

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.


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Required Skills and Education

Required Education & Experience
  • Bachelor's or Master's degree in Computer Science, IT, Engineering, or related field and 11 overall years of experience
  • Minimum of eight (8) 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 Skills and Education

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

About BAE Systems

BAE Systems plc is a British multinational arms, security, and aerospace company. It is among the world's largest defense contractors, with over 85,000 employees and operations in over 40 countries. BAE Systems is involved in the design, development, and manufacture of a wide range of products and services, including military aircraft, naval ships, and land vehicles. The company also provides a range of cybersecurity and intelligence services. BAE Systems has a long history, dating back to the 19th century, and has been involved in many major defense projects. Visit baesystems.com for more information.
Learn more about BAE Systems
Size
90,500 employees
Industry
Aerospace & Defense
Founded
1997
NASDAQ
BAESF
* Ladders Estimates

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