Principal, IT Audit

About Malleum:
Malleum is at the forefront of next-generation cyber defense, partnering with marquee clients across government, defense, financial services, and critical infrastructure.

We're experiencing exceptional growth as demand accelerates for trusted advisors capable of delivering at the intersection of national security, allied intelligence cooperation, and enterprise resilience.

Our consultants embed directly with clients to design, secure, and operate the networks and systems behind cutting‑edge defensive technologies and programs with national and allied security impact.

If you take pride in being the trusted technical hands clients rely on to keep mission‑critical environments running and to help them recover when things go wrong, Malleum is where your craft meets purpose.

• Administer, monitor, and maintain client network infrastructure including routers, switches, firewalls, VPNs, and wireless systems.
• Operate and tune client security tooling such as EDR/XDR, SIEM, email security, vulnerability scanners, and identity platforms (Entra , Okta).
• Design, deploy, and operate Zero Trust Network Access (ZTNA) solutions, including Cloudflare edge, access, and tunnel services, to enable secure remote access, identity‑aware policies, and modern perimeter strategies.
• Support Microsoft 365, Azure, AWS, and hybrid environments within each client’s security baseline and compliance posture.
• Implement and enforce hardening standards aligned with CIS Benchmarks, NIST 800‑53/171, ITSG‑33, and client‑specific frameworks.
• Lead patch management, vulnerability remediation, and configuration management across client servers, endpoints, and network devices.
• Support active incident response engagements—deploying and tuning tooling, isolating systems, preserving evidence, rebuilding infrastructure, and assisting with containment, eradication, and recovery activities.
• Work odd hours, evenings, weekends, and extended shifts during active IR engagements, including rapid mobilization with little notice when clients are under attack.
• Partner with Malleum’s IR consultants, forensic analysts, and threat hunters to execute response playbooks under pressure.
• Maintain client backup, disaster recovery, and business continuity systems with regular testing.
• Produce high‑quality client deliverables: network diagrams, configuration documentation, runbooks, SOPs, IR action logs, and status reports.
• Standardize provisioning, onboarding/off‑boarding, and access control workflows within client environments.
• Serve as a trusted technical point of contact, communicating clearly with client stakeholders ranging from end users to executive leadership during both steady‑state and crisis operations.
• Contribute to scoping, estimation, and continuous improvement of Malleum’s managed, project‑based, and IR service offerings.
• Participate in an on‑call rotation supporting critical client infrastructure and security events.

• 7+ years of hands‑on experience designing, deploying, troubleshooting, and optimizing enterprise network and security infrastructure across multi‑vendor environments.
• Deep expertise in routing, switching, network segmentation, and firewall policy management, with strong proficiency in Fortinet, Palo Alto, and/or Cisco technologies.
• Demonstrated success working directly with clients — clear communication, professionalism, and stakeholder management, including explaining technical risk and decisions to non‑technical leadership.
• Significant progressive experience blending network and cybersecurity responsibilities, ideally in a consulting, MSP, MSSP, or IR setting.
• Strong working knowledge of TCP/IP, routing, switching, VLANs, VPNs, DNS, DHCP, and segmentation.
• Solid understanding of Zero Trust Network…