Network Engineer II – Active Top Secret Clearance

Title: Network Engineer II – Active Top Secret Clearance
Hiring Organization: Connexion Systems & Engineering

Compensation, Benefits, and Employment Type

• Duration: 1+ year contract, possible extension or conversion
• Pay rate: $53.99–$61.00/hour
• Job Location: Sunnyvale, CA
• Work Model: 100% onsite
• Schedule: Monday – Friday, 1^st shift, 40 hours
• Security Clearance: Active Top Secret Required
• Job#: bh19865

Description:
We are seeking a Network Engineer II for a long-term contract opportunity supporting advanced aerospace and defense programs in Sunnyvale, California.

This position is ideal for an early-career to mid-level network engineering professional with hands-on experience in Cisco networking, LAN/WAN infrastructure, network configuration, troubleshooting, and network support.

The successful candidate will support the design, implementation, testing, and maintenance of network communications systems within a highly technical, security-sensitive environment.

An active Top Secret security clearance is required for consideration.

Key Responsibilities
Network Engineering & Infrastructure

• Design, configure, implement, and maintain network communications systems to support operational requirements.
• Support Local Area Network (LAN) and Wide Area Network (WAN) infrastructure.
• Develop network architecture specifications, technical documentation, and detailed network schematics.
• Assist with hardware and software selection to support network performance, reliability, and future capacity requirements.
• Configure and maintain networking equipment, including Cisco routers, switches, firewalls, gateways, and related infrastructure.
• Support network upgrades, modifications, and infrastructure improvements.

Network Troubleshooting & Support

• Monitor, analyze, and troubleshoot network performance, connectivity, and configuration issues.
• Perform network testing and validation to ensure systems meet technical and operational requirements.
• Diagnose network hardware, software, and communication issues and recommend corrective actions.
• Provide ongoing network support and maintenance to ensure reliable operations.
• Assist with network capacity planning and performance optimization.
• Maintain accurate technical documentation of network configurations, changes, and troubleshooting activities.

Technical Evaluation & Collaboration

• Evaluate emerging networking technologies and recommend improvements to existing infrastructure.
• Collaborate with engineering, IT, and technical teams to support network integration and operational requirements.
• Apply established network engineering standards, configuration practices, and security procedures.
• Support the implementation of efficient, scalable, and reliable networking solutions.

Required Qualifications

• Active Top Secret security clearance required.
• Bachelor's degree in Engineering, Computer Science, Information Technology, or a related technical discipline with approximately 3–5 years of relevant experience; or a master's degree with 0–3 years of relevant experience.
• 2–4 years of experience supporting LAN/WAN network environments.
• Hands-on experience with network configuration, maintenance, and troubleshooting.
• Experience working with Cisco networking technologies and equipment.
• Strong understanding of network architecture, network communications, and infrastructure support.
• Experience performing network analysis, testing, and performance troubleshooting.
• Familiarity with routers, switches, firewalls, gateways, and other network infrastructure components.
• Ability to interpret technical specifications, network diagrams, and configuration documentation.
• Strong analytical, problem-solving, and communication skills.
• Ability to work collaboratively in a technical engineering environment.
• Ability to work full-time on-site in Sunnyvale, CA.

Additional Experience of Interest

• Cisco routing and switching technologies.
• Network protocols and concepts, including TCP/IP, VLANs, routing, and switching.
• Network monitoring, diagnostics, and performance analysis tools.
• Network security practices and firewall configuration.
• Network architecture documentation and infrastructure planning.
• Experience supporting network infrastructure in aerospace, defense, government, or other secure environments.
• Cisco certifications such as CCNA or CCNP.

Ideal Candidate Profile
We're looking for a hands-on Network Engineer with a strong foundation in Cisco networking and LAN/WAN infrastructure who enjoys troubleshooting complex technical issues and maintaining reliable network operations.

The ideal candidate will have practical experience configuring and supporting network equipment, analyzing connectivity and performance issues, and collaborating with engineering teams to implement network solutions.

This opportunity is particularly well-suited for an engineer who has established foundational networking experience and is ready to contribute to sophisticated aerospace and defense programs.

Work Arrangement & Clearance Requirements

• Location: Sunnyvale, California
• Work Arrangement: 100% on-site; remote or hybrid work is not available.
• Schedule: Full-time, 40 hours per week, first shift.
• Contract Duration: Approximately 12 months.
• Security Clearance: Active Top Secret clearance required at the time of consideration.
• Additional Access Requirements: Must be able to satisfy applicable program-specific security access requirements.

Interested?
If you're a Network Engineer with hands-on Cisco, LAN/WAN, network configuration, and troubleshooting experience, and currently hold an active Top Secret security clearance, we'd love to hear from you.

Apply today to learn more about this opportunity.

Please use the apply button to submit your resume for consideration. You will receive a brief survey via email to complete your application. Applicants who complete the survey will receive priority consideration.

You can review our other job postings athttps://jobs.csetalent.com/.

If you are active in a job search but this job is not for you, please reach out to 

jobpostings@csetalent.com

. We would be glad to help you find the perfect job!

Connexion’s mission is to provide "best in class" services to job seekers. We strive to achieve excellence in job placement, staffing, and recruiting services, while treating candidates with the professionalism and respect they deserve.