Call Manager Engineer (Onsite)

Date Posted: 2026-06-26 Country: United States of America Location: US-FL-LARGO-382SS ~ 7887 Bryan Dairy Rd. ~ BLDG 100 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: TS/SCI - Current Security Clearance Status: Active and existing security clearance required on day 1 Raytheon Company, Managed By Collins Aerospace. Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio, and expertise to solve customers’ toughest challenges and to meet the demands of a rapidly evolving global market. Collins Aerospace is seeking a Call Manager Engineer for a position in Largo, Florida. Sign On Bonus Eligible What You Will Do Configure, administer, and maintain Cisco Unified Communications Manager (CUCM) clusters supporting enterprise and classified environments. Manage and maintain Cisco Unity Connection voicemail systems, including user provisioning, call handlers, automated attendants, and voicemail integrations. Configure and support dial plans, route patterns, route groups, route lists, SIP trunks, device pools, partitions, and calling search spaces. Administer and troubleshoot voice gateways, session border controllers, and VoIP infrastructure. Provide Tier III technical support, troubleshooting complex voice, call routing, registration, signaling, and voice quality issues. Design, implement, and maintain hunt pilots, hunt lists, line groups, call queuing, and call coverage solutions to optimize call distribution and operational workflows. Configure, manage, and support Meet-Me conferencing services, conference bridge resources, and collaboration platforms. Plan, coordinate, and execute CUCM and Unity Connection upgrades, patches, and lifecycle management activities. Develop upgrade runbooks, rollback procedures, testing plans, and maintenance schedules to ensure successful system implementations. Deploy, configure, and integrate UniFi FX solutions within enterprise communications environment. Support migration planning, testing, validation, and production cutover activities for voice and collaboration modernization initiatives. Implement and maintain DISA Security Technical Implementation Guide (STIG) compliance for Cisco Unified Communications platforms and associated virtual appliances. Perform vulnerability remediation, security hardening, compliance validation, and support cybersecurity audits, inspections, and accreditation activities. Maintain secure communications environments in accordance with DoD, organizational, and cybersecurity requirements. Develop and maintain engineering diagrams, configuration standards, operational procedures, disaster recovery plans, and technical documentation. Create, document, and defend system change requests while ensuring configuration management compliance. Conduct root cause analysis, incident response activities, and corrective actions to improve system reliability and performance. Collaborate with cybersecurity, network, infrastructure, and business stakeholders to implement and support enterprise communication services. Gather, analyze, and report system performance metrics to support operational readiness, capacity planning, and continuous improvement initiatives. Provide technical guidance and mentorship to junior engineers and support personnel. Contribute to strategic modernization efforts and the design, architecture, and enhancement of enterprise voice and collaboration platforms. Qualifications You Must Have A strong understanding and knowledge of computer, network, and security systems. Good interpersonal and communication skills. Strong analytical, critical thinking, and problem-solving skills. Ability to work well independently under limited oversight, be self-directed and able to prioritize work. Active and transferable Top Secret U.S. government issued security clearance with SCI eligibility is required prior to start date. Must be able to attain and maintain a DoD 8570 IAT Level II certification (Security+ or CISSP preferred). Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience. Qualifications We Prefer Experience with Juniper SRX, EX series routers and switches. Experience deploying security solutions for DoD networks. Experience with multi-platforms like Windows, UNIX, LINUX Understanding of network engineering fundamentals, including: OSI layers, IP addressing, sub-netting, TCP/IP stack, VLANs, DHCP, etc. Willingness to learn new technologies and applications as required. What We Offer Medical, dental, and vision insurance. Three weeks of vacation for newly hired employees. Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option. Tuition reimbursement program. Student Loan Repayment Program. Life insurance and disability coverage. Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection. Birth, adoption, parental leave benefits. Ovia Health, fertility, and family planning. Adoption Assistance. Autism Benefit. Employee Assistance Plan, including up to 10 free counseling sessions. Healthy You Incentives, wellness rewards program. Doctor on Demand, virtual doctor visits. Bright Horizons, child and elder care services. Teladoc Medical Experts, second opinion program. And more! Learn More & Apply Now! Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customers succeed today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. *Please ensure the role type (defined below) is appropriate for your needs before applying to this role. Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. At Collins, the paths we pave together lead to limitless possibilities. And the bonds we form – with our customers and with each other -- propel us all higher, again and again. Apply now and be part of the team that’s redefining aerospace, every day. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms: Click on this link to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.