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Network Engineer II; TS​/SCI Clearance Required

Job in Centennial, Arapahoe County, Colorado, USA
Listing for: Sierra Space
Full Time position
Listed on 2025-12-20
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity
  • Engineering
    Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 85800 - 117975 USD Yearly USD 85800.00 117975.00 YEAR
Job Description & How to Apply Below
Position: Network Engineer II (TS/SCI Clearance Required)

Sierra Space Careers:
Dare to Dream

We honor those that are not afraid to dream big dreams, those that tenaciously chase their dreams even when others say it cannot be done, those that achieve big dreams and change everything. Those are Dreams Worth Chasing.

At Sierra Space we envision a future where humanity lives and works in space, on moons, and on distant planets. Our mission isn't restricted to the few, instead we see a future where all people can choose to live, work, discover and explore beyond our planet. Our company is building a platform in space to benefit life on Earth and together we will alter the course of humanity.

We have a bold mission. We are a bold company. Together, we are an extraordinary team.

About the Role

The Network Engineer II is responsible for operating and maintaining the company's internal data communications systems, planning, designing, and implementing local and wide-area network solutions between multiple platforms and protocols (including IP and VOIP). This role involves advanced support and troubleshooting of network issues, performance optimization, and coordination with vendors for the installation and maintenance of network devices such as routers, switches, and firewalls.

Key Responsibilities
  • Operate and maintain the company's internal data communications systems.
  • Plan, design, and implement local and wide-area network solutions between multiple platforms and protocols, including IP and VOIP.
  • Provide advanced support and troubleshooting for network issues to ensure minimal downtime and optimal performance.
  • Coordinate with vendors for the installation and maintenance of network devices such as routers, switches, and firewalls.
  • Monitor network performance and security, utilizing network monitoring tools.
  • Assist in the development and implementation of network policies and procedures.
  • Maintain documentation of network configurations, processes, and service records.
  • Stay updated with the latest networking technologies and industry trends.
  • Optimize network performance and ensure network security through the use of technologies such as VPN, IDS/IPS.
About You

Our mission is driven by the unwavering passion to push the boundaries of what is possible. We seek those who dare to dream - to envision the extraordinary and pursue it relentlessly - to join us on this transformational journey.

We're looking for dreamers who align with our values, vision, and audacious goals - while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.

Minimum Qualifications
  • Requires Bachelor's degree in a related field (or equivalent work experience in lieu of degree).
  • Typically 2+ years of related experience.
  • Proficiency in configuring and managing network devices (e.g., routers, switches, firewalls).
  • Understanding of routing protocols (e.g., OSPF, BGP).
  • Knowledge of VLANs and subnetting.
  • Experience with network troubleshooting and performance optimization.
  • Familiarity with network security technologies (e.g., VPN, IDS/IPS).
Preferred Qualifications
  • Certifications:

    CCNA or higher (e.g., CCNP).
  • Experience with network design and implementation.
  • Strong analytical and problem-solving skills.
  • Excellent communication and teamwork abilities.
  • Experience with network security practices and tools.
  • Knowledge of VOIP systems and protocols.
Compensation

Pay Range: $85,800 - $117,975

Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education, experience, internal equity and market competitiveness.

IMPORTANT NOTICE

This position requires current/active Top Secret with SCI eligibility U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. Citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants.

Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.

Elevate Your Career

At Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations.

At Sierra Space we are at the very doorstep of unlocking the future and the work in front of us is hard, but it is truly important and meaningful. Achieving our mission requires dedication, relentless pursuit of a dream and an unwavering passion for pushing the boundaries to accomplish what others might believe to be impossible. We seek those who too, Dare to Dream and will join us in a pursuit to achieve the extraordinary.

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