Posted:
4/6/2026, 5:14:39 AM
Location(s):
Colorado, United States ⋅ Denver, Colorado, United States
Experience Level(s):
Senior
Field(s):
IT & Security
Workplace Type:
Hybrid
What You'll Do
Work on firewall requests (planning, documenting and implementing firewall openings)
Communicate with clients (both internal and external) for any firewall-related matters
Troubleshoot and resolve sophisticated firewall-related incidents
Perform firewall upgrades with pre- and post-checks
Collaborate with other teams on daily basis with regards to firewall requests, incidents and upgrades
Participate in CAB meetings and represent firewall changes
Good understanding of OSI Layers/understanding of network security technologies
Expertise on firewall hardware products - Cisco ASA, Fortinet, Palo Alto, Checkpoint
Expertise on Firewall Management products - Panorama, FortiManager, Checkpoint Mgmt Server
Good understanding in VPN concepts (S2S IPSec VPN, SSL Remote VPN)
Understanding of firewall OS upgrade process and specifics for different vendors is a plus (both standalone and HA)
Basic knowledge of IDS/IPS technologies
Understanding of attack activities, such as scans, man in the middle, sniffing, DoS, etc and possible abnormal activities, such as worms, Trojans, viruses, etc
Referring knowledge base for identified known threats and performing analysis, providing mitigation plan
Experience with IT Operation tools like ITSM, Jira
Understanding of ITIL processes
Good understanding of Change management, Incident management and Problem Management processes
Being able to perform preliminary analysis of alerts and submitting incident tickets
Follow the defined process to complete open firewall requests to maintain adherence to defined SLAs
Ability to support 24/7 on-call rotation
Nice to Have
Experience with log analysis tool like Splunk is a plus
Ability to learn new technologies, including but not limited to Cloud technologies and terraform deployments.
Experience with firewall analyzer tool experience is a plus (security policies/ACLs and config analysis, tools like Skybox, AlgoSec, etc.)
Network monitoring tool experience is a plus (i.e. NNMi
This position can be located in Denver, and offers the opportunity for a hybrid work environment (at least 3 days a week in office, subject to change), providing flexibility and accessibility for qualified candidates.
Applicants must be authorized to work in the U.S. without the need for employment-based visa sponsorship now or in the future; Nasdaq will not sponsor applicants for U.S. work visa status for this opportunity (no sponsorship is available for H-1B, L-1, TN, O-1, E-3, H-1B1, F-1, J-1, OPT, CPT or any other employment-based visa)
Come as You Are
Nasdaq is an equal opportunity employer. We positively encourage applications from suitably qualified and eligible candidates regardless of age, color, disability, national origin, ancestry, race, religion, gender, sexual orientation, gender identity and/or expression, veteran status, genetic information, or any other status protected by applicable law.
We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request an accommodation.
What We Offer
We’re proud to offer a competitive rewards package that is meaningful, recognizes the unique needs of our employees and their families and incentivizes employees for their contribution to Nasdaq’s overall success.
The base pay range for this role is $107,000 - $198,000. In addition to base salary, Nasdaq provides a generous annual bonus/commission (short-term incentive), and equity (long-term incentive), comprehensive benefits, and opportunity for growth. Exact compensation may vary based on several job-related factors that are unique to each candidate, including but not limited to: skill set, experience, education/training, business needs and market demands.Nasdaq’s programs and rewards are intended to allow our employees to:
For more information, visit Nasdaq Benefits & Rewards Career page.
Website: https://www.nasdaq.com/
Headquarter Location: New York, United States
Employee Count: 5001-10000
Year Founded: 1971
IPO Status: Private
Last Funding Type: Venture - Series Unknown
Industries: Collaboration ⋅ Mobile ⋅ SaaS