Senior Telecom Software Engineer (TS/SCI clearance)

Senior Telecom Software Engineer TS/SCI clearance Herndon, VA Responsibilities Conduct telecommunications network analysis, diagnostics, and performance remediation with expertise in protocols such as SS7, SIP, VoIP, TCP/IP, and Diameter across 2G, 3G, 4G VoLTE, and 5G networks. Monitor and analyze telecommunications systems, interpret inbound data streams, and utilize packet capture tools like Wireshark and tcpdump to troubleshoot core network issues. Provide technical support to the CONUS-based engineering team supporting OCONUS deployments, including analysis, findings, and remediation guidance. Support Linux-based systems supporting telecommunications infrastructure by ensuring high availability, performance, and reliability, supporting environments on CentOS 7 transitioning to Rocky Linux. Configure and manage system monitoring tools such as Nagios, Zabbix, or Grafana and automate system tasks using Ansible or Puppet. Design, support, and troubleshoot software and software lifecycle issues, collaborating with development teams and supporting CI/CD pipelines using Jenkins, Jira, and Confluence. Create installation guides and as-built documentation, and support Linux firewall and VPN configurations. Requirements BA, BS degree or equivalent experience in Computer Science, Telecommunications, or a related field. 5+ years of experience in telecommunications network analysis, systems engineering, or related disciplines with senior-level expertise in telecom protocols and network operations. Advanced proficiency with RHEL / Rocky Linux / CentOS 7 and experience supporting both environments through transition phases. Strong understanding of mobile telecom network architectures, protocols (SS7, SIP, VoIP, TCP/IP, Diameter), and core network operations. Experience using tools like Jenkins, Jira, Confluence, and Ansible for supporting software and hardware troubleshooting. Proven ability to diagnose root causes of network and system performance issues and implement effective solutions. Excellent communication skills for technical presentations and collaborations with distributed teams. Benefits System One offers eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. Equal Opportunity Employer System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #J-18808-Ljbffr