Rezwan Uzzaman

Rezwan Uzzaman

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SOC Analyst | MSCIS | CompTIA Security+
Alexandria, Virginia, United States

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Résumé


Jobs verified_user 0% verified
  • AmeriSave Mortgage Corporation
    Security Operations Analyst
    AmeriSave Mortgage Corporation
    Sep 2022 - Current (4 years)
    As a Security Operations Analyst at AmeriSave, I owned 24×7 SIEM monitoring using Splunk and Microsoft Sentinel, triaging over 1,200 alerts per day while tuning correlation, suppression, and thresholds, which resulted in a 68% reduction in time-to-detect, a 40% increase in true positive rate, and a 35% decrease in alert noise. I led incident response efforts for phishing, malware, privilege misuse, and lateral movement, executing host containment via Defender and SentinelOne, and delivering root-cause and post-incident reports with over 98% adherence to incident response SLAs. Additionally, I built 12 Python and PowerShell playbooks to standardize enrichment, ticketing, and containment processes, cutting mean time to recovery by 28%. My thr
  • UnitedHealth Group
    Associate Info Security Risk Analyst
    UnitedHealth Group
    Feb 2021 - Aug 2022 (1 year 7 months)
    • Administered SIEM pipelines (Splunk/Wazuh); recalibrated severities/routing → MTTA 60→27 min (−55%) and analyst throughput +23%. • Tuned Suricata/Snort signatures and behavior detections → high-fidelity +34%, false positives −29%; integrated IOC feeds and ATT&CK-mapped rules. • Improved email defense with Defender for Office 365 (ZAP, transport rules, submission workflows) → click-through −41%, time-to-containment −38%. • Automated ServiceNow + Qualys/Tenable remediation workflows (Python/Bash) → critical-vuln window 96h→36h (−62%), 95% 30-day SLA. • Produced weekly leadership SOC metrics and mentored junior analysts on triage, KQL/SPL, and IR procedures. Additionally, leveraged my experience with AWS in my role at UnitedHealth Group, whe
  • ventois INC
    Junior Security Analyst
    ventois INC
    Mar 2019 - Dec 2020 (1 year 10 months)
    • Stood up Wazuh + ELK and Suricata; onboarded 20+ log sources and authored 15 decoders/correlation rules → log coverage 55%→92%. • Conducted packet analysis with Wireshark/tcpdump; reduced false positives 33% and improved alert precision 26% via baseline profiling and signature tuning. • Wrote IR runbooks and enriched alert workflows; halved per-alert handling time (12→6 minutes). Additionally, leveraged my experience with AWS to analyze logs ingested into Wazuh/ELK and Suricata from cloud-based assets, enhancing our overall security posture. Supported SOC 2 readiness by developing correlation rules and improving log coverage, ensuring that monitoring controls met audit requirements, which directly contributed to cloud visibility and compl
  • Grameenphone Ltd
    Data Analyst
    Grameenphone Ltd
    Mar 2012 - Aug 2013 (1 year 6 months)
    At Grameenphone Ltd, I played a pivotal role in optimizing data management systems and enhancing data integrity. My responsibilities included designing automated data collection tools and implementing quality assurance processes. I successfully increased data accuracy by 30% and reduced reporting errors by 45%. Additionally, I developed Python-powered dashboards that significantly improved reporting efficiency and trained numerous employees on data visualization techniques. I also worked extensively with both Windows- and Linux-based systems that hosted our reporting and analytics tools, which enhanced my understanding of diverse operating environments. By automating data processing tasks using Python and PowerShell, I further improved data
Education verified_user 0% verified
  • Rivier University
    Master's degree, Computer Information System
    Rivier University
    Jan 2017 - Dec 2018 (2 years)
    Relevant Courses: Computer Security, Networking Technologies, Database Management System.
  • East West University
    Bachelor's degree, Master of Business Administration Cont. Management Information System
    East West University
    Jan 2008 - Dec 2011 (4 years)
    Relevant Courses: Introduction to Computer, Statistics, Mathematics, Enterprise Information System, Management Information System