Senior Network Engineer

About the role

Sphinx is a company founded by engineers and technologists dedicated to improving the technology used by America's service members. We focus on creating modern, scalable products using open-source technologies and value collaboration, transparency, and individual responsibility.

Responsibilities

• Designing, configuring, maintaining, and troubleshooting secure network infrastructure
• Supporting routers, switches, firewalls, gateways, and other enterprise networking technologies
• Investigating and resolving network performance, reliability, and connectivity issues across LAN/WAN environments
• Maintaining compliance with government security requirements for secure classified network environments
• Performing network monitoring, packet analysis, and root cause troubleshooting using industry-standard tools
• Collaborating with cloud, infrastructure, and cybersecurity teams to support modernization and scalability efforts
• Supporting implementation and maintenance of network security controls and segmentation strategies
• Assisting with documentation, technical analysis, and operational reporting for internal and customer stakeholders
• Contributing to infrastructure improvements that increase reliability, automation, and operational efficiency
• Supporting DNS, DHCP, IP management, and other core network services in enterprise environments

Requirements

This role is designed for someone with 10+ years of experience supporting enterprise or mission-focused network infrastructure. The ideal candidate should have hands-on experience with network troubleshooting, routing and switching, firewalls, and secure network architectures. They should also be comfortable working within classified or highly secure environments and have experience with Cisco networking technologies and enterprise networking protocols. Additionally, they should have experience analyzing network traffic and troubleshooting complex connectivity issues, supporting cloud or hybrid infrastructure environments, and communicating technical issues clearly to both technical and non-technical stakeholders.

Qualifications

The successful candidate will hold an active TS/SCI clearance or be eligible to obtain one. They should also have experience supporting multi-cloud or hybrid cloud networking environments, familiarity with infrastructure automation or network scripting tools, and experience supporting space, defense, or government mission environments. A DOD 8570 IAT Level II certification or higher (i.e. Security+) is preferred.

Benefits

• Competitive salary between $144,000 - $176,000 base salary
• Meaningful equity ownership
• Profit sharing
• Employer 401(k) contribution
• 100% employer-covered medical, dental, and vision insurance for you and your dependents

Location

This is a hybrid role based in Colorado Springs, CO, with a combination of onsite and remote work.

Eligibility

• Must be a US Citizen
• Must be able to obtain and hold a U.S. TS/SCI security clearance
• Must be eligible to obtain the required authorizations from the U.S. Department of State

EEO Statement

Sphinx Defense is committed to providing equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, and gender identity.