Sree Surya
@sreesurya
Senior cybersecurity engineer specializing in AWS cloud security, DevSecOps automation, and zero-trust IAM.
What I'm looking for
I’m a Senior Cybersecurity Engineer with over 8 years of experience in information security, including 3 years focusing on AWS cloud security and DevSecOps automation. I secure healthcare-grade AWS environments under HIPAA/HITRUST compliance by building IaC guardrails, enforcing zero trust IAM, and automating threat detection pipelines.
I’ve driven measurable improvements like a 40% increase in incident response efficiency through an automated SOAR pipeline, and a 35% reduction in MTTD using centralized threat detection (CloudTrail + GuardDuty + WAF). I also lead shift-left CI/CD security with Terraform + policy gates (Checkov/OPA) and bring certifications like AWS, CEH, and PCNSE to every engagement.
Experience
Work history, roles, and key accomplishments
AWS Security Researcher
Independent Research
Oct 2025 - Present (8 months)
Built a 10-project AWS security portfolio covering IAM hygiene and multi-account Zero Trust using AWS Organizations and SCPs. Increased incident response efficiency by 40% with an automated SOAR pipeline and enforced shift-left IaC security using Terraform with OPA/Checkov policy gates.
Cybersecurity Engineer Team Lead II
CitiusTech Healthcare Technologies Pvt Ltd
Feb 2025 - Sep 2025 (7 months)
Architected Zero Trust IAM and VPC segmentation to maintain continuous HIPAA/HITRUST compliance across production AWS environments. Built centralized threat detection (CloudTrail, GuardDuty, WAF) reducing MTTD by 35% and automated CI/CD security with Terraform and Ansible, achieving 90% automated remediation of infra misconfigurations.
Security Researcher
Loginsoft Pvt Ltd
Aug 2021 - Feb 2025 (3 years 6 months)
Remediated 50+ critical web/API vulnerabilities (RCE, SQLi, IDOR, auth bypass) and performed STRIDE threat modeling with secure code reviews in Python/JS. Integrated SAST/DAST into CI/CD, built CIS benchmark hardening baselines that reduced attack surface by 25%, and supported NIST CSF/ISO 27001/PCI DSS/SOC 2 compliance across client engagements.
Security Analyst
Mitigater TechSecure Pvt Ltd
May 2020 - Sep 2021 (1 year 4 months)
Improved security threat detection by 40% by monitoring 20 firewall/IDS/IPS alerts and enhancing incident response workflows. Conducted quarterly AD access reviews for least-privilege across 500+ accounts and supported NIST/ISO audit activities.
Security Engineer
CRM Enterprise Pvt Ltd
Jun 2018 - Jul 2019 (1 year 1 month)
Improved security savings by 50 mln by deploying 10% firewalls and hardening 15% of servers on a quarterly basis. Reduced security exposure through recurring firewall rollouts and server hardening.
Desktop & Network Engineer
Flash Forge Pvt Ltd
Apr 2017 - May 2018 (1 year 1 month)
Managed 100+ endpoints through patching and secure configuration while maintaining 99.9% LAN/WAN/VPN uptime. Supported desktop and network operations focused on maintaining availability and baseline security.
Education
Degrees, certifications, and relevant coursework
GITAM University
Master of Science, Electronics Science (Networking)
2015 - 2017
M.Sc. in Electronics Science (Networking) from GITAM University, completed between 2015 and 2017.
Aditya Degree College
Bachelor of Science, Electronics
2012 - 2015
B.Sc. in Electronics from Aditya Degree College, completed between 2012 and 2015.
Availability
Location
Authorized to work in
Website
nagasesank.github.ioJob categories
Skills
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