**Job Description:** AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers’ mission. Our National Security Team supports the intelligence community, providing, operating, and assuring critical voice, video and collaboration services for the full spectrum of operations. **AT&T has an opening for Tier III O&M Network Engineer** to support the customer’s various wide area networks (WANs) and local area networks (LANs). This position will provide routing and boundary protection to an enterprise level infrastructure across multiple classifications and act as subject matter experts in routing and boundary technologies across multiple vendors. **The job duties of Tier III O&M Network Engineer are as follows:** + Maintain the security and networking of enterprise boundary enclaves and devices. + Tier III O&M of Juniper and Cisco routers to include troubleshooting and implementation of routing updates. + Implement new firewall rules along with associated routing to fulfill firewall change requests. + Responsible for installing software, applying patches, managing file systems, and monitoring performance of firewall systems. + Provide support for Palo Alto, Cisco Adaptive Security Appliance (ASA), and Forcepoint firewall equipment and applications. + Generate, determine impact of, and implement custom proxy policies and/or policy exceptions in response to ongoing technology implementation activities on the program. + Proxy Subject Matter Expert (SME) for integration of other technologies within the program (function as a SME on ongoing technology projects). + Support the troubleshooting of web connectivity problems to determine root cause. + Perform Proxy solution component upgrades, testing and configuration. + Research and develop evidence collection, protection, and analysis techniques for customer owned and maintained hardware and/or software. + Provide real-time monitoring and alerting of security incident investigations on perimeter/internal infrastructure. + Provide day-to-day Operations and Maintenance (O&M) support for all incident management events and outages. + Collaborate with IT staff on projects and initiatives. + Provide input for monthly progress and status reporting of Service Level Agreements (SLAs). + Work with corresponding technical support teams as required to resolve network traffic concerns. + Utilize monitoring tools and log collectors to provide in-dept analysis of traffic anomalies and issues. **Required Clearance:** TS/SCI with polygraph. (#ts/sci) (#polygraph) **Required Qualifications:** Candidate must have 16 years of experience that can be a combination of work history and education. This equates to a Doctorate and 8 years, master’s and 10 years, bachelor’s and 12 years, associates and 14 years or HS diploma and 16 years. Additional required qualifications include: + Must comply with DoD 8570 Information Assurance Technical (IAT) Level 2. + Experience in configuring and troubleshooting boundary protection technologies such as Palo Alto, Cisco ASA, and Forcepoint appliances. + Experience with configuring and troubleshooting Juniper and Cisco routers and switches. + Experience with protocols such as OSPF, BGP, VPN’s, VRF’s, MPLS. + Working knowledge of boundary protection best practices. + Understanding of routing, switching, Internet Protocol (IP) subnet, Network Address Translation (NAT) and security technologies. + Demonstrated ability to engineer and modify rulesets to allow connectivity for new customer requirements. + Demonstrated ability to read, understand, and develop schematic diagrams, technical manuals, and documentation such that the supported equipment and software can be maintained with minimal training. + Working knowledge of Service Now or similar IT Service Management (ITSM) products. + Superior verbal and written communication skills. + Intermediate-level knowledge of MS Office products Word, Excel, PowerPoint, and Visio. **Desired Qualifications:** Project Management Professional Certification (PMP) **Ready to join our team? Apply today!** **Our Tier III O&M Network Engineer (NE III) (Government) earns between** **$89,200 - $170,000** **yearly. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.** **Joining our team comes with amazing perks and benefits:** **Medical/Dental/Vision coverage** **401(k) plan** **Tuition reimbursement program** **Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)** **Paid Parental Leave** **Paid Caregiver Leave** **Additional sick leave beyond what state and local law require may be available but is unprotected · Adoption Reimbursement** **Disability Benefits (short term and long term)** **Life and Accidental Death Insurance** **Supplemental benefit programs: critical illness/accident hospital indemnity/group legal** **Employee Assistance Programs (EAP)** **Extensive employee wellness programs** **Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone** **Weekly Hours:** 40 **Time Type:** Regular **Location:** Chantilly, Virginia It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T will consider for employment qualified applicants in a manner consistent with the requirements of federal, state and local laws We expect employees to be honest, trustworthy, and operate with integrity. Discrimination and all unlawful harassment (including sexual harassment) in employment is not tolerated. We encourage success based on our individual merits and abilities without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, disability, marital status, citizenship status, military status, protected veteran status or employment status