**Job Description** BAE Systems, a topten prime contractor to the U.S. Department of Defense, enables the U.S. government to transform data into intelligence and provides engineering, integration, and sustainment support for critical military platforms and systems. Our Intelligence & Security sector delivers advanced services and products to the Department of Defense, federal agencies, law enforcement, and deployed forces around the world. At BAE Systems, we foster a strong, collaborative culture and equip our employees with the tools, training, and support they need to excel. Trust, camaraderie, and a shared ambition to lead in defense technologies define who we are. We offer a flexible work environment that helps you balance life and perform at your best. Join a company deeply connected to its communitydriven to improve our future and protect our freedom. **We are seeking experienced Cisco Voice Engineers to support a missioncritical, technologydriven program for a key Government customer. This role focuses on designing, deploying, securing, and sustaining enterpriselevel 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 nextgeneration voice system technologies and support firstarticle 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 largescale 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. ABC \#LI-DDUNN **Required Education, Experience, & Skills** **Required Education & Experience** + Bachelor s or Master s degree in Computer Science, IT, Engineering, or related field + Minimum of eight (8) years of progressive experience in Voice/UC engineering + Expertlevel proficiency in: + SIP signaling and call flows + Secure RealTime Transport Protocol (SRTP) + SIP, MGCP, H.323 + TCP/IP networking + MPLS transport environments + DNS and DHCP + RTP media handling + Demonstrated experience leading enterprisescale voice deployments and modernization efforts + Proven ability to troubleshoot complex, multilayered call routing and signaling issues + Strong communication skills for stakeholder engagement, documentation, and technical leadership **Preferred Education, Experience, & Skills** **Preferred Education, Experience, & Skills** + Expertise in SIP signaling, call flows, and multivendor integration + Handson experience with H.323 in mixedprotocol 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 highsecurity environment **Pay Information** Full-Time Salary Range: $132962 - $226035 Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience. Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20 hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics. **Systems Engineer (Senior)** **122331BR** EEO Career Site Equal Opportunity Employer. Minorities . females . veterans . individuals with disabilities . sexual orientation . gender identity . gender expression