Senior Network Engineer

SAIC; Dallas (TX); On-site; USD 120,000 - 160,000; Full time

Job summary

SAIC in Dallas/Carrollton is seeking a senior network engineer to configure, upgrade, and troubleshoot Cisco and Juniper devices in production and backup data centers. You will manage ACLs, DNS/DHCP via Infoblox IPAM, and support ISE integrations for secure access.

You will monitor performance with SolarWinds, Splunk, and Netcool, participate in on-call rotations, and coordinate with carriers and vendors to resolve outages. RCA and data center operations are also part of the role.

Qualifications

• Bachelors and five or more years of relevant experience; Masters and three or more years; PhD with no related experience.
• Hands-on Cisco and Juniper networking experience in enterprise/data center environments.
• Advanced knowledge of ACLs, DNS, and DHCP management with Infoblox IPAM.
• Experience with Infoblox DDI, grid HA, and RESTful API integrations.
• Familiarity with Cisco ISE for authentication and access control.
• Strong monitoring/troubleshooting skills using SolarWinds, Splunk, Netcool.
• Ability to interface with carriers/vendors and coordinate incident resolution.
• Knowledge of data center best practices, including power and cooling.
• Ability to lead RCA and document lessons learned.

Responsibilities

• Configure, upgrade, and troubleshoot Cisco/Juniper routers, switches, and firewalls.
• Implement and maintain ACLs and security policies for segmentation and compliance.
• Perform IOS/Junos upgrades with post-change validation and testing.
• Manage DNS/DHCP records via Infoblox IPAM solutions.
• Support Cisco ISE integrations for authentication and access control.
• Monitor performance with SolarWinds, Splunk, and Netcool; respond to alerts.
• Participate in on-call rotation for after-hours support of enterprise network.
• Coordinate with carriers and vendors to resolve outages and incidents.
• Lead RCA for critical incidents and apply lessons learned.
• Support data center operations: racking, cabling, hardware replacement, UPS, cooling.
• Develop and maintain SOPs and NOC documentation.
• Implement network changes per ITIL change management and document testing.

Skills

Cisco networking

Juniper networking

ACL management

DNS/DHCP management

Infoblox IPAM

ISE integration

Network monitoring

Data center operations

SOP/NOC documentation

ITIL change management

Vendor liaison

On-call support

Root Cause Analysis

Education

Bachelor's degree

Master's degree

PhD

Tools

Infoblox IPAM

SolarWinds

Splunk

Netcool

Job description

Primary Responsibilities:

• Configure, upgrade, and troubleshoot Cisco and Juniper routers, switches, and firewalls in both production and backup data center environments.
• Implement and maintain access control lists (ACLs) and security policies to enforce network segmentation and support compliance requirements.
• Perform IOS and Junos versions upgrades, ensuring post-change validation and connectivity testing are completed without impacting operations.
• Manage DNS records (A, MX, CNAME) and DHCP reservations through Infoblox IPAM solutions.
• Provide support for and troubleshoot Cisco Identity Services Engine (ISE) integrations related to authentication and access control mechanisms.
• Monitor network performance and resolve incidents using tools such as SolarWinds, Splunk, and Netcool. Respond proactively to system alerts and performance issues to minimize downtime.
• Participate in an on-call rotation, ensuring after-hours and weekend support for mission-critical enterprise network infrastructure as needed.
• Lead coordination efforts with telecom carriers, vendors, and cross-functional teams to resolve outages and major incidents efficiently.
• Conduct Root Cause Analysis (RCA) for critical infrastructure events, ensuring findings are documented and lessons learned are applied.
• Support data center operations, including activities such as racking, cabling, hardware replacement, and managing UPS systems and cooling infrastructure.
• Develop, maintain, and enhance Standard Operating Procedures (SOPs) and Network Operations Center (NOC) documentation to standardize and streamline operations.
• Implement network changes in alignment with ITIL-based change management processes, ensuring changes are well-documented, tested, and executed.

Qualifications

Required:

• Bachelors and five (5) years or more experience; Masters and three (3) years or more experience; PhD and 0 years related experience.
• Ability to obtain and maintain a public trust.
• Proven hands-on experience with Cisco and Juniper network technologies, including routers, switches, and firewalls.
• Advanced proficiency in network protocols, including ACLs and DHCP/DNS management.
• Experience with Infoblox IPAM for DNS and DHCP administration.
• Familiarity with Cisco ISE for authentication and access control.
• Expertise in monitoring and troubleshooting network performance with tools like SolarWinds, Splunk, and Netcool.
• Ability to interface with carriers/vendors and foster collaboration during incident resolution processes.
• Strong understanding of data center best practices and physical infrastructure, including power and cooling systems.
• Proficient in deploying, configuring, and managing Infoblox DDI (DNS, DHCP, and IPAM) solutions to streamline network core services and enhance operational efficiency.
• Skilled in troubleshooting and optimizing Infoblox appliances, including grid implementations, high availability setups, and system upgrades to ensure seamless network management.
• Experienced in integrating Infoblox solutions with security and cloud platforms, implementing DNS Security Extensions (DNSSEC), and leveraging RESTful APIs for automation and scalability.
• U.S. Citizenship is required to be considered for this role.
• Must be local to Dallas/Carrolton, TX.

Preferred:

• Certifications such as CCNA, CCNP, or JNCIA/JNCIS.
• Familiarity with or experience in FDIC-specific systems or equivalent experience in government or financial institutions.
• Strong troubleshooting and analytical skills with the ability to provide detailed root cause analysis.
• Knowledge of cybersecurity best practices and network segmentation strategies.
• Prior experience managing and responding to major network incidents.

Target salary range: $120,001 - $160,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.

SAIC is a premier technology integrator, solving our nation's most complex modernization and systems engineering challenges across the defense, space, federal civilian, and intelligence markets. Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT, including cloud services; cyber; software; advanced analytics and simulation; and training. We are a team of 23,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $6.5 billion. For more information, visit saic.com. For information on the benefits SAIC offers, see Working at SAIC. EOE AA M/F/Vet/Disability