Security Engineer Jobs Worldwide

HANA KOBAYASHI hana.kobayashi@email.com · Remote (JST) · github.com/hkobayashi SUMMARY Security Engineer with 5 years securing production infrastructure and application code, with deep experience in vulnerability management and incident response. EXPERIENCE Security Engineer, Ashborn Systems — Remote | 2021–Present • Own vulnerability management across 40+ production services, reducing mean time-to-patch from 21 days to 6 • Led incident response for 3 security incidents, containing each within 4 hours of detection • Built automated security scanning into CI/CD, catching 90% of common vulnerabilities before merge Security Analyst, Tessellate Corp — Tokyo, Japan (Hybrid) | 2019–2021 • Ran quarterly penetration tests and coordinated remediation with engineering teams • Built the company's first security incident response runbook • Conducted security training for 100+ engineers, reducing security-related code review findings by 40% SKILLS Vulnerability management, incident response, AWS security, CI/CD security scanning, penetration testing basics, SIEM tools EDUCATION B.S. Information Security, Keio University | 2019

Dear Hiring Manager, I'm applying for the Security Engineer role because the posting's emphasis on proactive vulnerability management, not just incident response, is how I've approached security at Ashborn Systems. I own vulnerability management across 40+ production services and cut our mean time-to-patch from 21 days to 6 by building better tooling and clearer ownership. I've also led incident response for three real security incidents, containing each within four hours of detection. Before that, at Tessellate Corp, I built our first incident response runbook and ran security training that cut security-related findings in code review by 40%. I think good security work is mostly about making the secure path the easy path for engineers, not just gatekeeping. I'd welcome the chance to talk about your current security posture. Sincerely, Hana Kobayashi