Open to opportunities

Adnan Calian

@adnancalian

Message

Certified Cybersecurity Analyst focused on incident response, cloud and network security.

United States

Message

What I'm looking for

I am seeking a hands-on security role focused on incident response, cloud and network security within a collaborative company that values continuous improvement and 24/7 resilience.

I am a Certified Security Analyst (CySA+) with hands-on experience in incident response, threat detection, SIEM, EDR, and cloud security across Azure and AWS. I have implemented RBAC and IAM policies, automated access reviews, investigated malicious activity in Windows environments, and mitigated phishing and email threats using Mimecast and Okta alert management.

I bring practical network engineering experience—SD-WAN migrations, firewall and VLAN optimization, and ClearPass authentication—combined with a commitment to secure, resilient environments and 24/7 incident support. I collaborate with clients to refine SLAs and KPIs while aligning controls to frameworks like NIST, PCI-DSS, and GDPR.

Experience

Work history, roles, and key accomplishments

Current

Cloud & Security Analyst

Current

Calian Cloud Service & Cyber Solutions

Apr 2023 - Present (2 years 11 months)

Implemented RBAC and IAM policies across Azure and AWS to enforce least-privilege, triaged SIEM alerts and provided 24/7 incident response resulting in improved detection and availability of cloud assets.

Azure Sentinel AWS IAM RBAC SIEM Crowdstrike Mimecast Sailpoint Incident Response Log Analysis

Network Engineer

Vallourec USA

Feb 2022 - Apr 2023 (1 year 2 months)

Managed office networks and security controls, migrated 15+ industrial sites to SD-WAN, and configured Palo Alto firewalls and Aruba ClearPass to improve segmentation and compliance with NIST/PCI-DSS.

SD WAN VLAN NIST)PCI DSS

Network Engineer

Mattress Firm

Jan 2021 - Jan 2022 (1 year)

Migrated remote sites to SD-WAN and designed network solutions using BGP, OSPF, and IPsec while administering routers, switches, firewalls and WAN technologies to enhance connectivity and resiliency.

SD WAN BGP OSPF IPSEC Routers MPLS VPLS Wireless VPN

Service Desk Support

Peractus Engineering

Aug 2017 - Dec 2020 (3 years 4 months)

Provided tier 2 support for Windows and Linux environments, performed hardware and network troubleshooting, and managed incident tracking and escalation to maintain operational readiness.

Windows Linux Desktop Support Incident Management Ticketing Systems