Infrastructure Engineer

Benefits

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What Impact You'll Have GRVTY is seeking a highly skilled Infrastructure Engineer to design, implement, secure, and maintain our enterprise infrastructure. This role combines advanced Cisco networking and security expertise with strong Linux systems administration experience. The ideal candidate will be hands-on, security-focused, and comfortable operating in a hybrid on-premises and cloud environment. What You'll be Owning Design, deploy, and maintain enterprise network infrastructure Configure and support: Cisco routers and switches Cisco ASA and/or Firepower firewalls Cisco ISE (Identity Services Engine) Manage VLANs, routing protocols (BGP, EIGRP), and switching technologies Implement and maintain site-to-site and remote access VPNs Maintain network segmentation and security controls Perform firmware upgrades, patching, and lifecycle management Monitor network health and performance using SNMP and other tools Troubleshoot complex Layer 2/3 connectivity issues Implement and enforce network security best practices Maintain firewall policies and intrusion prevention system Linux Systems Administration Install, configure, and maintain Linux servers (RHEL, CentOS, Ubuntu) Manage system services, patching, and updates Automate tasks using Bash, Python, or Ansible Manage system backups and disaster recovery procedures Monitor system performance and troubleshoot production issues What You Must Have Must have a current and active DoD TS/SCI clearance CompTIA Security+ (or equivalent) or better is required At least 5+ years of experience in network engineering and systems administration Strong hands-on experience with Cisco networking equipment is required Experience with Cisco ASA or Firepower security appliances Must have a deep understanding of TCP/IP, subnetting, routing, and switching Strong Linux administration experience in production environments Experience with virtualization platforms Knowledge of network security principles and best practices Ability to troubleshoot across network and system layers What Would be Nice to Have Cisco Certified Network Associate (CCNA) or better Experience with configuration management tools (Ansible, Puppet) Experience with monitoring tools (SolarWinds, Nagios, Zabbix) Familiarity with cloud platforms (AWS, Azure, GCP) Scripting experience (Python, Bash) Why Choose GRVTY The toughest national security challenges demand vision and ingenuity, not just resources. We deliver mission and technical expertise to outpace our adversaries. We're purpose-built to tackle the most entrenched, systemic national security issues around the world. We partner with our customers to help them overcome challenges in every corner of technology and defense-including the ones still being explored. Our growing capabilities create complementary advantages, giving on-the-ground operations the edge they need to succeed. We muster everything we have to answer every challenge presented, every day of our lives. At GRVTY, we believe that when our employees thrive, our company thrives. That's why we offer a comprehensive and competitive benefits package designed to support your well-being, growth, and work-life balance. - Robust health plan including medical, dental, and vision - Health Savings Account with company contribution - Annual Paid Time Off and Paid Holidays - Paid Parental Leave - 401k with generous company match - Training and Development Opportunities - Award Programs - Variety of Company Sponsored Events EEO Statement GRVTY, is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran and will not be discriminated against on the basis of disability. Anyone requiring reasonable accommodations should email recruiting@grvty.com or call 703-544-7930 with requested details. A member of the HR team will respond to your request within 2 business days. Know Your Rights: Workplace Discrimination is Illegal (eeoc.gov) Please review our current job openings and apply for the positions you believe may be a fit. If you are not an immediate fit, we will also keep your resume in our database for future opportunities.

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