Senior​/Principal LAN​/WAN Support Technologist - Onsite

About Sandia:

Sandia National Laboratories is the nation’s premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting‑edge work in a broad array of areas.

• Challenging work with amazing impact that contributes to security, peace, and freedom worldwide
• Extraordinary co‑workers
• Some of the best tools, equipment, and research facilities in the world
• Career advancement and enrichment opportunities
• Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten‑hour days each week) compressed workweeks, part‑time work, and telecommuting (a mix of onsite work and working from home)
• Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance*

World‑changing technologies. Life‑changing careers. Learn more about Sandia at: http://(Use the "Apply for this Job" box below)..gov

* These benefits vary by job classification.

Join Sandia’s High Security Operations (HSO) IT team supporting both the HSO IT Infrastructure team and the HSO Mission IT team to operate, maintain, and secure classified local and wide‑area networks that support national security missions. This role involves administering and enforcing communications security (COMSEC) policies and protocols, deploying and supporting advanced networking and video/VoIP systems, proactively monitoring network performance, and ensuring reliable, secure connectivity for mission‑critical partners.

• Install, configure, operate, and maintain LAN/WAN infrastructure, including routers, switches, firewalls, and related secure hardware in classified environments.
• Implement, enforce, and manage COMSEC policies and procedures to safeguard sensitive communications.
• Manage physical and electronic keying material, communications security accounts, and audit records in compliance with NSA, DOE, and other government agency directives.
• Monitor network health, troubleshoot performance bottlenecks or off‑normal behavior, and respond to security incidents to restore optimal operation.
• Perform hardware additions, changes, and upgrades related to secure communications infrastructure.
• Collaborate with cybersecurity teams to enforce network security measures and respond to security investigations.
• Create, update, and maintain detailed documentation including network configurations, COMSEC procedures, forms, and policies, ensuring compliance with program, corporate, and federal guidelines.
• Provide technical support and training to end‑users on network operations, security best practices, and COMSEC requirements.
• Analyze, interpret, and implement communications and technical policies from NSA, DOE, and other government agencies.

Due to the nature of the work, this candidate must be able to work onsite.

$74,700 - $144,400

* Salary range is estimated, and actual salary will be determined after consideration of the selected candidate’s experience and qualifications, and application of any approved geographic salary differential.

• High school diploma, plus three years of directly related experience
• Expertise operating and securing LAN/WAN infrastructure, switches, firewalls, including hardware/software upgrades and building network utilities.
• Demonstrated familiarity with COMSEC procedures, and policies, ensuring compliance with program, corporate, and federal guidelines.
• Advanced troubleshooting and performance monitoring, with incident response and network health intervention.
• Proficient in networking protocols, encryption technologies, and secure hardware/software configurations.
• Ability to obtain and maintain a DOE Q‑level security clearance and a SCI clearance (polygraph may be required).

• Strong COMSEC skills: physical and electronic key management, account oversight, and audit compliance.
• Excellent verbal and written communication; collaborative team player who models Sandia’s values of integrity, excellence, and innovation.
• Professional certifications…