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Systems Network Engineer II

Science Applications International Corp
  • San Diego, CA
  • $120,001–$160,000 Per Year
2 days ago
Science Applications International Corp

Job Description

Systems Network Engineer II

Job ID: 2617932

Location: San Diego, CA, United States

Date Posted: Oct 14, 2026

Category: Software

Subcategory: SW Engineer

Schedule: Full-Time

Shift: Day Job

Travel: Yes - 10% of the time

Minimum Clearance Required: Secret

Clearance Level Must Be Able to Obtain: TS/SCI

Potential for Remote Work: On-Site

Benefits: Click here

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Job Description

Description

SAIC seeking a Systems Network Engineer II to support the design, configuration, integration, and sustainment of secure network infrastructure supporting distributed computing, cloud, and software environments. This mid-level role will work across on-premises lab and test environments, cloud infrastructure, and distributed computing platforms to maintain reliable and secure connectivity. The candidate will collaborate with network engineers, cloud and platform teams, cybersecurity personnel, software developers, and other technical stakeholders to troubleshoot network issues, maintain network documentation, implement access controls, and support emerging capabilities. The ideal candidate possesses strong foundational networking skills, hands-on troubleshooting experience, and an interest in expanding their expertise across cloud networking, containerized environments, network automation, and modern infrastructure technologies.

THIS IS AN ONSITE ROLE IN SAN DIEGO, CA. WITH UP TO 5% OF CONUS/OCONUS TRAVEL INVOLVED.

JOB DUTIES:

  • Configure, maintain, and troubleshoot Layer 2 and Layer 3 network infrastructure supporting on-premises, laboratory, test, cloud, and distributed computing environments.
  • Support network connectivity by integrating compute nodes, network infrastructure, and cloud or on-premises backend services.
  • Develop and maintain network topology diagrams, data-flow documentation, configuration records, interface information, and other technical artifacts documenting system connectivity and network dependencies.
  • Configure and maintain network security controls, including Access Control Lists (ACLs), firewall policies, traffic filtering rules, ports and protocols, and network segmentation to support least-privilege access.
  • Deploy, monitor, troubleshoot, and maintain secure remote and site-to-site connectivity using IPsec, SSL/client-based VPNs, and other approved communications technologies.
  • Monitor network health, availability, throughput, packet loss, and latency using network monitoring and diagnostic technologies while troubleshooting L2/L3 issues affecting applications and infrastructure.
  • Support provisioning and configuration of cloud networking components, including VPCs/VNets, subnets, route tables, peering connections, security controls, and private endpoints used to connect cloud services with enterprise and distributed computing environments.
  • Support network security hardening, configuration reviews, vulnerability remediation, port and protocol reviews, and implementation of applicable cybersecurity requirements and technical security baselines.
  • Collaborate with senior network engineers, cloud and platform teams, cybersecurity personnel, software developers, and infrastructure engineers to resolve complex connectivity issues and support integration, testing, deployment, and sustainment activities.

Qualifications

REQUIREMENTS:

  • Bachelors and five (5) years or more experience; Masters and three (3) years or more experience; PhD and 0 years related experience
  • Must be a U.S. Citizen
  • Must have an Active Secret clearance to start
  • Must be able to obtain a TS/SCI after start
  • Strong foundational experience in network engineering, network administration, systems networking, infrastructure engineering, or related technical roles.
  • Experience configuring, maintaining, and troubleshooting Layer 2 and Layer 3 networks, including switching, routing, VLANs, subnets, and network segmentation.
  • Understanding of core networking concepts and protocols, including TCP/IP, DNS, DHCP, routing, ports and protocols, and network addressing.
  • Experience configuring or supporting firewalls, ACLs, VPNs, traffic filtering, network access controls, or other network security technologies.
  • Experience troubleshooting network connectivity, performance, latency, routing, and configuration issues using network monitoring and diagnostic tools.
  • Experience developing or maintaining network diagrams, topology documentation, configuration records, data-flow diagrams, or other network engineering documentation.
  • Understanding of cybersecurity principles, network hardening, least-privilege access, vulnerability remediation, and secure network configuration practices.
  • Strong analytical and problem-solving skills with the ability to troubleshoot technical issues across networks, systems, applications, and infrastructure.
  • Strong written and verbal communication skills with the ability to collaborate effectively with network, cloud, cybersecurity, software, infrastructure, and engineering teams.

DESIRED SKILLS:

  • Experience supporting distributed computing, edge computing, robotics, unmanned platforms, or other complex technology environments.
  • Familiarity with AWS, Azure, GCP, or similar cloud platforms and networking constructs such as VPCs/VNets, subnets, route tables, peering, private endpoints, gateways, and cloud security controls.
  • Familiarity with enterprise network monitoring and diagnostic technologies such as SNMP, NetFlow/sFlow, Wireshark, packet analyzers, or similar tools.
  • Familiarity with Kubernetes and container networking concepts, including Container Network Interfaces (CNIs), Pod-to-Pod communication, Services, Ingress controllers, and containerized microservice connectivity.
  • Familiarity with network or infrastructure automation using Terraform, Ansible, Python, Bash, or similar automation and Infrastructure as Code technologies.
  • Familiarity with Zero Trust architectures, network segmentation, identity-aware networking, or other modern network security approaches.
  • Familiarity with CIS Benchmarks, NIST guidance, STIGs, or other security baselines applicable to network infrastructure.
  • Experience supporting hybrid environments connecting on-premises infrastructure, cloud services, distributed computing platforms, and geographically distributed systems.
  • Experience supporting government, defense, classified, or other mission-critical network environments.
  • Demonstrated ability and interest in expanding technical expertise across cloud infrastructure, container networking, automation, and emerging network technologies.

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

Overview

SAIC accepts applications on an ongoing basis and there is no deadline.

SAIC is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

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Numbers & Facts

LocationSan Diego, CA
IndustryComputer/IT Services
Salary$120,001–$160,000 Per Year
Company Size10,000 employees or more
Year Founded2013
Websitehttps://jobs.saic.com/

About Company

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions. We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Skills

  • Access Controlunmatched
  • Amazon Web Services (AWS)unmatched
  • Analysis Skillsunmatched
  • Ansibleunmatched
  • Automationunmatched
  • Bash Scriptingunmatched
  • Benchmarkingunmatched
  • Cloud Computingunmatched
  • Communication Skillsunmatched
  • Computer Networksunmatched
  • Computer Systemsunmatched
  • DHCP (Dynamic Host Configuration Protocol)unmatched
  • DNS (Domain Name System)unmatched
  • Distributed Computingunmatched
  • Documentationunmatched
  • Emerging Technologyunmatched
  • Enterprise Computingunmatched
  • Firewall Administrationunmatched
  • Firewallsunmatched
  • GCP (Good Clinical Practices)unmatched
  • Governmentunmatched
  • IPsec (IP Security)unmatched
  • Identify Issuesunmatched
  • Information Technology & Information Systemsunmatched
  • Infrastructure as a Service (IaaS)unmatched
  • Integration Testingunmatched
  • Internet Securityunmatched
  • Laboratory Testingunmatched
  • Microservicesunmatched
  • Microsoft Windows Azureunmatched
  • Netflowunmatched
  • Network Access Control (NAC)unmatched
  • Network Administration/Managementunmatched
  • Network Architecture/Engineeringunmatched
  • Network Configuration Managementunmatched
  • Network Connectivityunmatched
  • Network Integrationunmatched
  • Network Monitoringunmatched
  • Network Performance/Analysisunmatched
  • Network Protocolsunmatched
  • Network Routingunmatched
  • Network Securityunmatched
  • Network Supportunmatched
  • Network Switchingunmatched
  • Network Systemsunmatched
  • Network Topologyunmatched
  • Presentation/Verbal Skillsunmatched
  • Private Securityunmatched
  • Problem Solving Skillsunmatched
  • Professional Servicesunmatched
  • Python Programming/Scripting Languageunmatched
  • Roboticsunmatched
  • SNMP (Simple Network Management Protocol)unmatched
  • SSL-TLS (Secure Socket Layer - Transport Layer Security)unmatched
  • Secret Clearanceunmatched
  • Sensitive Compartmented Information (SCI)unmatched
  • Software Developmentunmatched
  • Software Engineeringunmatched
  • Storage Area Network (SAN)unmatched
  • Subnetunmatched
  • Systems Engineeringunmatched
  • TCP/IP (Transmission Control Protocol/Internet Protocol)unmatched
  • Team Playerunmatched
  • Testingunmatched
  • Top Secret Clearanceunmatched
  • U.S. National Institute of Standards and Technology (NIST)unmatched
  • United States Citizenunmatched
  • VLAN (Virtual Local Area Network)unmatched
  • VPN (Virtual Private Network)unmatched
  • Wireshark (Ethereal)unmatched
  • Work From Homeunmatched
  • Writing Skillsunmatched

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