🎮 Jason Sevilla - Cybersecurity Player Card
🏅 Title: Security Engineer III — Threat Detection & Response
📍 Location: Paterson, NJ
📫 Email: iamthe0x1@proton.me
🔗 LinkedIn: linkedin.com/in/jasonsevilla91
💻 GitHub: github.com/jsonsevilla
🧠 Overall Rating: OVR 94
Note: Skills are rated on a scale of 1-100 based on the NICE Cybersecurity Workforce Framework and my personal experience.
| Skill | Rating |
|---|---|
| Threat Detection & SIEM | 96 |
| SOAR / Automation | 94 |
| Python Scripting | 92 |
| Red Teaming / Purple Ops | 90 |
| Email Security | 89 |
| Incident Response | 89 |
| Malware Analysis | 88 |
| Cloud Security | 87 |
| Vulnerability Mgmt | 86 |
💼 Experience
🛡 CIGNA — Threat Hunter
Sep 2020 – May 2025 | Remote / Bloomfield, CT
- Built 50+ Splunk SPL and Sigma-based detections; reduced MTTD by 45%.
- Developed Python SOAR playbooks for malware sandboxing & alert enrichment.
- Reduced phishing false positives by 37% using Proofpoint TAP/TRAP.
- Led Purple Team exercises aligned with MITRE & vuln scans.
- Integrated vuln scanner logs into SIEM dashboards for proactive mitigation.
- Created Python SOAR playbooks for malware sandboxing and alert enrichment.
- Led Purple Team exercises aligned with MITRE ATT&CK and vulnerability scans.
- Integrated vulnerability scanner logs into SIEM dashboards for proactive mitigation.
🧑🏫 ThriveDX — Lead Instructor, Cybersecurity Bootcamp
Jul 2020 – Present | Remote
- Instructed courses for NJIT, UCF, NORCS, and UB.
- Delivered hands-on training in threat hunting, IR, forensics, and pentesting.
- Enhanced and maintained curriculum to meet real-world demand.
- Provided mentorship, mock interviews, and career development support.
🕵️♂️ UPS Info Systems — Sr. Cyber Intelligence Analyst
May 2015 – Sep 2020 | Remote / Mahwah, NJ
- Created tuned SPL dashboards reducing false positives by 50%.
- Deployed YARA/Sigma rules via CrowdStrike for early malware detection.
- Automated threat intel ingestion pipelines using Python.
- Strengthened Defender for Endpoint/IPS signatures; reduced lateral movement by 60%.
🎓 Education
B.S. Information Technology — NJIT
Concentration: Network & Information Security
🎖️ Certifications
- GIAC Certified Incident Handler (GCIH)
- GIAC Security Essentials (GSEC)
- GIAC Cyber Threat Detection (GCTD)
- GIAC Continuous Monitoring (GMON)
- [Planned] Splunk Certified Power User