Senior Infrastructure Security Engineer

STACK Infrastructure; Denver (CO); On-site; USD 148,000 - 160,000; Full time

Job summary

Join a forward-thinking company that is redefining digital infrastructure. As a Senior Infrastructure Security Engineer, you will play a pivotal role in enhancing cybersecurity measures across cutting-edge data centers. This position offers a unique opportunity to work in a dynamic environment where your expertise will directly influence the security posture of innovative technologies. Collaborate with cross-functional teams to implement robust security strategies, ensuring the integrity and safety of critical systems. If you're passionate about cybersecurity and eager to make a significant impact, this is the perfect opportunity for you.

Benefits

Medical Insurance

Dental Insurance

Vision Insurance

401K Program

Flexible Spending Accounts

Employee Recognition Events

Game Nights

Happy Hours

Barbecues

Qualifications

• 10-15 years of hands-on network security engineering experience.
• Strong understanding of MITRE ATT&CK framework and threat mitigation.
• Experience with international IT security programs and compliance.

Responsibilities

• Implement and manage security measures for data protection.
• Champion a Zero Trust security model across environments.
• Lead incident response and investigate security detections.

Skills

Network Security Engineering

Firewalls

Palo Alto

Threat Assessment

Incident Response

Zero Trust Security

Education

CISSP Certification

CEH Certification

GIAC Certification

Tools

Palo Alto Firewalls

IDS/IPS

VPNs

Windows Servers

Linux Servers

Job description

Shape the Future of Digital Infrastructure with STACK

At STACK Infrastructure, you can accelerate your career within the high-growth digital infrastructure industry by joining a team that empowers innovation and values dynamic collaboration. As a leading global developer and operator of data centers, STACK enables you to contribute to the digital foundation that fuels today’s most innovative companies. Here, your career growth is ignited by meaningful work that directly supports the technologies driving our world forward.

With a culture rooted in inclusivity and growth, STACK invests in your future. Here, diverse perspectives are celebrated, and career development is central. Join us to be part of a team where your skills and ideas shape the future of digital infrastructure, building not just a job, but a lasting career with impact.

Core Values

Join a team deeply rooted in core values, guiding how we work, collaborate, and create impact.

Clients

We exist for our clients.

Consideration

We advance with integrity, safety, and respect.

Community

We make a positive contribution for all.

Build the future of digital infrastructure.

Dynamic Culture

Opportunities for Impact

Exceptional Benefits

Purposeful Growth

Position:Senior Infrastructure Security Engineer

Location: Denver, CO

Job Id:698

# of Openings:1

SR INFRASTRUCTURE SECURITY ENGINEER

THE COMPANY:

STACK INFRASTRUCTURE (STACK) provides digital infrastructure to scale the world’s most innovative companies. We are an award-winning industry leader in building, owning, and operating highly efficient, cost-effective wholesale, colocation, and cloud data centers. Each of our national facilities meets or exceeds the highest industry standards in all operational categories of availability, security, connectivity, and physical resilience. STACK offers the scale and geographic reach that rapidly growing hyperscale and enterprise companies need. The world runs on data. Data runs on STACK.

THE POSITION:

At STACK Infrastructure, the Sr Infrastructure Security Engineer is a key member of the team responsible for multiple aspects of IT cybersecurity and support of Operational Technology cybersecurity needs. The Sr Infrastructure Security Engineer position requires expertise in support of running a highly available, secure, and scalable environment. The position will require the development and maintenance of our datacenter environments. Technologies will include, but not be limited to firewalls, IDS/IPS, switches, routers, VPNs, edge security architectures, Windows and Linux servers/appliances, archiving and backup, encryption, business continuity, security risk assessment, and support of Operational Technology applications. The position works under minimal direction with considerable latitude as part of a global security team where the use of critical analysis, initiative, and independent judgment are highly desirable. The position will be required to utilize project management and time management skills to ensure timely delivery of business and departmental objectives.

RESPONSIBILITIES:

Responsibilities may include:

• Planning, implementing, managing, monitoring, and upgrading security measures for the protection of STACK Infrastructure’s data, systems, and networks.
• Monitor and triage critical IT infrastructure for irregular behavior/weaknesses and respond with robust countermeasures to prevent future incidents.
• Zero Trust Implementation: Champion a Zero Trust security model across STACK’s network and datacenter environments. Architect solutions that enforce least-privilege access, continuous verification, and micro-segmentation of services – ensuring no implicit trust at any layer.
• Install and maintain security tools that monitor critical infrastructure (systems and networks) for security breaches and intrusions.
• Leading or collaborating with peers on project management to accomplish the goals set by leadership.
• Providing SME-level advice and expertise regarding various technologies and enable leadership to drive security objectives and improve STACK’s overall security posture.
• Triage and investigate security and user high-risk events.
• Lead/participate in incident response and investigation of IT/OT security detections and incidents.
• Infrastructure and Network OS security hardening
• Monitoring and optimization of security tools
• DNS management
• Penetration testing remediation
• Policy enforcement
• Attack surface management and threat hunting
• Participation in an on-call rotation with your team to ensure 24/7/365 coverage.
• Work closely with cross-functional teams, including IT Support, IT Infrastructure, and Critical Operations teams, to ensure systems and networks are secure, compliant with applicable regulations, and protected against unauthorized access
• Serve as a point of escalation and support for Information Technology and international IT administrators security needs.
• Other duties as assigned

THE DETAILS:

Location: Denver, CO
Travel: up to 25%
Compensation: from $148,800 to $160,000 base salary + Bonus.
Must be eligible to work in the United States.
Must pass comprehensive background screening.
Must be willing to work flexible hours across time zones.
Must be willing to participate in an on-call rotation to ensure 24/7/365 coverage.

MUST-HAVE QUALIFICATIONS:

• 10-15 years hands-on network security engineering experience, specializing in Firewalls and Infrastructure security.
• Strong Palo Alto and Panorama experience. Other enterprise firewall experience accepted but Palo Alto is preferred.
• Exposure and experience with International and multi-country IT security programs.
• Certifications in one or more of the following disciplines/providers preferred: CISSP, CEH, GIAC (GSEC, GCIH, etc.), ISACA, Other Networking/Network Security related certifications.
• Familiarity with security-related compliance such as NIST CSF, CIS Critical Security Controls, ISO 27001/27002 and regulations such as GDPR, HIPAA, SOC1/2, and PCI-DSS.
• Strong understanding of MITRE ATT&CK framework.
• An analytical security-focused mind, outstanding problem-solving skills, and strong threat assessment and mitigation skills.
• Strong communication and interpersonal skills, with the ability to effectively communicate complex security concepts to technical and non-technical stakeholders. Exceptional documentation and report generation skills.
• Great awareness of cybersecurity trends, emerging threats, and techniques.

THIS MIGHT BE RIGHT FOR YOU IF:

• You’re at the senior level of the technical path in Networking or Network Security, with a strong understanding of server infrastructures.
• You have a strong interest or specialization in enterprise datacenter technologies.
• You’re passionate about IT and Cybersecurity.
• You’re persuasive and clear, blending analytics with experience in decision-making.
• You’re highly adaptable in an ever-changing environment and enjoy change and growth.
• You’re naturally curious and driven toward continual improvement. While you celebrate your successes, you take time to review and analyze campaigns for future learning.

WHY STACK Infrastructure?

• We offer a competitive compensation package with strong benefits, including medical, dental, and vision insurance, a 401K program and flexible spending accounts
• We foster a culture of appreciation, including STACK Assembly recognition.
• Fun is part of our DNA, with events, game nights, happy hours, and barbecues.
• We’re growing – this is a great time to join and make an impact!

STACK is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity and expression, age, national origin, mental or physical disability, genetic information, veteran status, or any other status protected by federal, state, or local law.

Note to external agencies: we are not accepting any blind submissions or resumes/cvs from recruitment agencies. Any candidates sent to stack infrastructure will not be accepted or considered as a submission without a signed agreement in place.