Rahul Sahadevan
Auckland,AUK
Summary
Results-driven IT and Security Engineer with 11+ years of experience in security technologies, infrastructure management, and risk and compliance. Proficient in managing PKI systems, encryption, vulnerability scanning, and ITIL processes. Strong foundation in security frameworks (ISO 27001, NIST, CIS) with hands-on experience in Red Hat Linux, VMware, network protocols, process automation, technical support, and team leadership. Holds a Master’s degree in Computer Applications and certifications in GCUX, EMC NAS, and Red Hat.
Overview
15
15
years of professional experience
3
3
Certification
Work History
IT Security Specialist (Product Security Office)
Seagate Technology
Singapore
05.2016 - 08.2024
- Led the System Operations team responsible for managing product security infrastructure, including PKI management, cryptographic key generation, applications and Hardware Security Modules (HSM)
- Designed and implemented security hardening strategies, hosting plans and managed deployments across business units, ensuring high availability and service quality
- Oversaw infrastructure security by executing hardening, patching, vulnerability management and conducting compliance and environment audits
- Served as a Subject Matter Expert (SME), overseeing change and incident management, addressing security threats, resolving technical issues, providing expert support and conducting root cause analysis for escalated tickets
- Partnered with cross-functional teams to strengthen network and lab security, configure F5 LTM/GTM, firewall configurations and deploy whitelists to manage service access
- Worked on security compliance standards, including NIST, ISO, CVEs, CIS benchmarks and HSM
- Spearheaded periodic audits and vulnerability assessments using Nessus, OpenSCAP and CrowdStrike, resulting in improved security posture
- Developed and maintained technical documentation, knowledge base articles and standard operating procedures (SOPs)
- Collaborated with development teams to streamline code changes using CI/CD practices in GitLab, increasing deployment frequency by 20%
- Coordinated product assessments and appraisals, upgrades, performance and capacity reviews, disaster recovery plans and high availability configurations
- Collaborated with managers, cross-functional teams, partners and vendors for seamless technology implementations, negotiate contracts and procurement processes.
Senior Engineer (Product Security Office)
Seagate Technology
Singapore
01.2013 - 05.2016
- Managed the critical Product Security Infrastructure, encompassing Red Hat systems, VMware ESXi, and cloud environments, ensuring seamless daily system and security operations to maintain business continuity
- Oversaw security appliance administration, executed PKI operations, managed crypto key lifecycle and implemented disaster recovery plans with high availability solutions
- Conducted vulnerability assessments and implemented security hardening measures for Red Hat operating systems, Apache Tomcat, Java and VMware environments
- Collaborated with the compliance team, assisting with security initiatives and annual audit processes to ensure adherence to industry standards
- Provided expert escalation support for issues related to in-house applications, Hardware Security Modules, Red Hat servers and Apache Tomcat environments.
Systems Engineer
Troytech International Consulting
Singapore
03.2012 - 12.2012
- Managed Starhub’s prepaid SMS e-Marketing infrastructure, ensuring seamless operations across RedHat OS, VMware ESXi, IBM blade servers and storage solutions
- Implemented production environment changes based on business team requirements, ensuring minimal disruption and operational efficiency
- Collaborated with technology partners and vendors to drive the implementation of new initiatives and resolved production issues in line with the Service Level Agreement (SLA)
- Delivered detailed Root Cause Analysis (RCA) and incident reports for all production incidents, ensuring swift resolution and continuous improvement.
Technical Support Engineer II / SME
EMC Corporation
India
04.2010 - 01.2012
- Delivered comprehensive advanced technical support to EMC NAS customers globally, ensuring issues were resolved within established Service Level Agreements (SLAs)
- Served as a SME for the UNIX Skill Group within the NAS team, collaborating with colleagues to address technical inquiries and troubleshoot complex issues
- Managed escalated support cases by replicating customer scenarios in a test lab and providing actionable technical insights
- Actively participated in the NAS forum, contributing technical write-ups and responding to community inquiries
- Collaborated closely with the NAS Core Team, Sustaining Engineering Team and testing team during the development phases of Unified Storage.
Senior Engineer Product Support
SANAT Technologies
India
12.2006 - 04.2010
- Led proof of concept initiatives and provided technical guidance to field engineers and partners for deploying SANAT NAS and IPSAN storage solutions in client environments
- Conducted functional testing on NAS, backup software, RAID and IPSAN environments, fine-tuning configurations to optimize the efficiency of SMB/CIFS data transfers
- Forged a successful OEM partnership with a Taiwanese vendor by assessing NAS hardware compatibility, testing functionality, evaluating performance and developing disaster recovery plans for firmware and RAID failures
- Partnered with a leading network company to evaluate NAS solutions for their clients and establish a robust support framework for customer implementations
- Managed a revenue-generating Strategic Business Unit (SBU) focused on delivering corporate training on storage technologies and solutions.
Education
Master of Computer Applications -
Mahatma Gandhi University
Kerala, IndiaSkills
- PKI Management
- Cryptography
- Hardware Security Module
- Vulnerability Scanning
- SIEM
- Hardening
- Security Patches
- RSA Multifactor Authentication
- MofN
- Segregation of roles
- ACL
- GnuPG
- ISO 27001
- NIST Cybersecurity Framework
- CIS Benchmarks
- CVE Management
- FIPS Compliance
- Risk Management
- Encryption
- Incident Response
- Change Management
- Problem Management
- Security Audits
- Compliance Checks
- Zero Trust Architecture
- Threat intelligence
- Logging and Monitoring
- Cloud Security
- PAM
- Redhat Linux
- Windows
- VMware ESXi
- TCP/IP
- LAN
- WAN
- SSH
- VPN
- DNS
- Wireshark
- ServiceNow
- Nessus
- Splunk
- CrowdStrike Falcon
- OpenSearch
- Zabbix
- NMap
- Syslog
- CyberArk
- JMeter
- Apache Tomcat
- GitLab CI/CD
- Thales HSM
- Microsoft 365
- NAS
- IPSAN
- RAID
- CIFS
- NFS
- BASH (Intermediate)
- Decision-Making
- Time Management
- Team building
- Teamwork and Collaboration
- Cybersecurity frameworks
- Disaster Recovery
- Application security
Certification
- GIAC Certified Unix Security Administrator (GCUX)
- EMC Proven Professional Specialist (EMCIE) Network Attached Storage (NAS) Specialist Version 5.0
- Redhat Certified Engineer (RHCE) Redhat EL-3
Timeline
IT Security Specialist (Product Security Office)
Seagate Technology
05.2016 - 08.2024
Senior Engineer (Product Security Office)
Seagate Technology
01.2013 - 05.2016
Systems Engineer
Troytech International Consulting
03.2012 - 12.2012
Technical Support Engineer II / SME
EMC Corporation
04.2010 - 01.2012
Senior Engineer Product Support
SANAT Technologies
12.2006 - 04.2010
- GIAC Certified Unix Security Administrator (GCUX)
- EMC Proven Professional Specialist (EMCIE) Network Attached Storage (NAS) Specialist Version 5.0
- Redhat Certified Engineer (RHCE) Redhat EL-3
Master of Computer Applications -
Mahatma Gandhi University
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