Why Work for Frontier Airlines?
At Frontier, we believe the skies should be for everyone. We deliver on this promise through our commitment to Low Fares Done Right. This is more than our tagline - its our driving philosophy. Every member of Team Frontier has an important role to play in bringing this vision to life. Our successful business model allows travelers to take advantage of our fast-growing route network while our bundled and unbundled pricing options allow our customers to personalize their travel experience and only pay for the services they need – saving them money along the way.
What We Stand For
Low Fares Done Right is our mission and we strive to bring it to life every day. Our ‘Done Right promise means delivering not only affordable prices, but making travel friendly and easy for our customers. To do this, we put a great deal of care into every decision and action we take. We must be efficient with the use of our resources and make smart decisions about how we run our business. We must also innovate and be pioneers - were not afraid to try new things. While our business requires us to fly high in the air, we also consider ourselves down-to-earth in our approach, creating a warm and friendly experience that truly demonstrates Rocky Mountain Hospitality.
Work Perks
At Frontier, we like to think were creating something very special for our team members. Work is why were here, but the perks are nice too:
- Flight benefits for you and your family to fly on Frontier Airlines.
- Buddy passes for your friends so they can experience what makes us so great.
- Discounts throughout the travel industry on hotels, car rentals, cruises and vacation packages.
- Discounts on cell phone plans, movie tickets, restaurants, luggage and over 2,000 other vendors.
- Enjoy a ‘Dress for your Day business casual environment.
- Flexible work schedules that support work/life balance.
- Total Rewards program including a competitive base salary, short term incentives, long-term incentives, paid holidays, 401(k) plan, vacation/sick time and medical/dental/vision insurance that begins the 1st of the month following your hire date.
- We play our part to make a difference. The HOPE League, Frontier Airlines non-profit organization, is dedicated to providing employees financial assistance during catastrophic hardship.
Who We Are
Frontier Airlines is a leading ultra-low cost carrier headquartered in Denver, Colorado. With a mission to deliver Low Fares Done Right, the company provides affordable, convenient and accessible air travel throughout the U.S., Caribbean, Mexico and Latin America. Frontiers highly fuel-efficient, all-Airbus fleet is among the youngest and most modern of any carrier within the U.S. That, combined with the airlines many weight-saving initiatives and focus on operational efficiencies, makes Frontier Americas Greenest Airline.* Each Frontier Airlines plane tail features a special animal with a unique name and backstory. Many of the featured species are endangered or threatened, part of the airlines commitment to underscore and raise awareness for their plight. Frontier serves approximately 100 destinations throughout North America and operates 500-plus daily flights, on average. The airline employs more than 7,000 team members and has crew bases in more than a dozen U.S. cities. Frontier Airlines., Inc., is a subsidiary of Frontier Group Holdings, Inc. (NASDAQ: ULCC).
* Frontier is the most fuel-efficient of all major U.S. carriers when measured by ASMs per fuel gallon consumed.
Position Overview
The Firewall Engineer II is an experienced, competent, and hands-on firewall engineer who serves as a Subject Matter Expert (SME) within the Frontier Firewall Engineering team. The Firewall Engineer II will be responsible for the availability, reliability, and administration of Frontiers firewall environments including, but not limited to installation, configuration, hardening, and 24-hour monitoring and support (participate in Firewall On-Call) for incident management. Firewall On-Call duties may require interfacing with other groups to assure highly available IT services. Responsibilities may extend to connection interfaces supporting IT systems, System Operations Center (SOC), telecommunications, and all other entities dependent upon firewall environments for connectivity.
Essential Duties
- Administration of Checkpoint and Cisco NGFWs including deep packet inspection technologies
- Configure and maintain firewall routing and switching protocols within the firewall environments such as BGP, OSPF, VRRP, VLANs, and QOS
- Configure and maintain SD-WAN firewall technology that supports Frontiers extended networks via MPLS, Broadband, and Cellular
- Architectural assistance in design, configuration, implementation, and support of Frontiers core and extended (station & BPO) firewall environments
- Monitor, respond, troubleshoot, and respond to incidents related to connectivity loss within Frontiers firewall environments
- Communicate to the Major Incident Management (MIM) team and executive-level staff on firewall issues and required corrective action to support time-sensitive decisions
- Ability to determine Mean Time to Resolution (MTR), possible short-term fixes, prioritize services for critical needs of the network, and implement corrective actions in the event of a “firewall incident”
- Architectural assistance in analysis, design, and administration of Frontiers InfoSec posture to defend against InfoSec deficiencies and potential breaches
- Recommend process improvements to ensure hardened firewall environments
- Provide regular status updates to leadership and the Project Management Organization (PMO) on existing projects and support activities
- Support various firewall projects while collaborating with other IT and business departments to determine requirements and meet project milestones
- Provide Level-3 escalation support for the maintenance and troubleshooting of the WAN and LAN firewall connections
- Develop and implement scripts for automated change deployment
- Implement and maintain firewall engineering policies and procedures to ensure network availability and compliance with InfoSec standards including, but not limited to Sarbanes Oxley (SOX) and Payment Card Industry (PCI)
- Create and maintain detailed firewall documentation including related updates to SolarWinds
- Ensure currency and enforcement of all InfoSec policies as they relate to Frontiers enterprise network
- Work within the Change Management (CM) process for production firewall changes
- Utilization of network monitoring tools and syslog files to verify healthy operations and identify potential network/firewall problems
Professional Qualifications
- Associates or Bachelors degree (Computer Science, Computer Engineering, or Computer Information Security preferred) OR minimum of seven (7) years of demonstrable professional experience and continuing education
- Current technical certification(s) such as CISSP, CCSA, CCSE, CCSM, SANS, CCNA Security, CCNP Security, Cisco ASA or Firewall Specialist, OR 1-3 years of Checkpoint or Cisco NGFW administration
Technical Qualifications
- Check Point installation, configuration, and administration
- Cisco NGFW installation, configuration, and administration preferred
- TCP/IP routing and switching protocols such as BGP, OSPF, QOS, VRRP, and VLANS
- Network Address Translation (NAT)
- Firewall policy analysis, review, and hardening
- Network management tools such as SolarWinds (including NetFlow Analyzer), Nessus, Wireshark, Nmap, PAM, MFA, and Kiwi
- Firewall scripting
- Networking media such as CAT5, CAT6, SMF, MMF, and Small Form-factor Pluggable (SFP)
- Cloud security installation and maintenance in Azure or AWS including related firewall services preferred
- Check Point Maestro Hyperscale Network Security preferred
- Versa, Fortinet, or HPE/Aruba SD-WAN technology preferred
- SIEM technologies such as Splunk, QRadar, McAFee, or Azure Sentinel preferred
- Installation and maintenance of InfoSec controls including experience in applying InfoSec framework methodologies such as NIST, Cloud (CSA), wired and wireless security preferred
- Design, development, and maintenance of network drawings using Microsoft Visio
- Strong analytical, troubleshooting, communication, and interpersonal skills
- Ability to multi-task in a fast-paced technical environment
Work Environment
- Typical office environment, adequately heated and cooled
- Equipment - firewalls, switches, Linux, Windows servers/desktops, and other common open source and commercial InfoSec tools
- General Office Activities – involves sitting most of the time but may involve walking or standing for brief periods of time
- Network Integration Activities – Occasional lifting and racking (or un-racking) equipment weighing up to 35 pounds (NIOSH lifting limit). Occasional work in environmentally controlled data centers with background noise
- Data Cabling Activities – Individual must be able to:
- Distinguish and identify color coded cabling in a telecommunications environment
- Carry common communication wire construction equipment weighing up to 35 pounds
- Work from OSHA-approved ladders of varying heights up to 16 ft
- Install, test, and terminate communication cabling following a structured cabling standard
- Safely work in variable field conditions
Travel Requirement
Occasional travel to support Frontiers Denver-based facilities
Supervision Received
This position normally receives little instruction on day-to-day work and receives general instructions on new assignments.
Salary Range: $81,752 - $108,511. Please note: this posting has a closing date of 1/30/2026, midnight MT.
Positions Supervised
None
Workplace Policies
Disclaimer: The above statements are intended only to describe the general nature and level of work required of the referenced position; they are not intended to be an exhaustive list of all responsibilities, duties, and skills required of individuals in this position. Please be advised that duties and expectations of this position may be subject to change.
Frontier Airlines, Inc. is an equal opportunity employer and, as such, is committed to providing equal employment opportunities to all qualified applicants without regard to race, color, religion, sex, national origin, age, marital status, veteran status, sexual orientation, gender identity or expression, disability status, pregnancy, genetic information, citizenship status or any other basis protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
Frontier Airlines is a Zero Tolerance Drug-Free Workplace. All prospective DOT safety-sensitive employees are subject to pre-employment testing for the following drugs and their metabolites: Marijuana, Cocaine, Amphetamines, Opioids and Phencyclidine (PCP). Further, any DOT safety-sensitive job applicant who is found to have tested positive on any required drug or alcohol test at a former employer will be considered ineligible for employment with Frontier.
Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.
