Akihisa Hirosawa | AI & Cybersecurity Solutions Architect

Strategic Value Proposition

With over 15 years of experience designing and defending mission-critical enterprise infrastructures, I specialize in architecting secure, high-performance AI systems for highly regulated environments. Currently an MSIT Candidate (Expected Aug 2026) with elite technical certifications (CCIE, CISSP, PMP), my background in Pharmaceutical & Life Science provides a rare interdisciplinary lens. This unique combination enables me to seamlessly align advanced IT engineering with the rigorous data sovereignty and privacy requirements of the biomedical sector.

Flagship Project: MediMask

Flagship Innovation: Medical AI Security

MediMask: AI-Powered Privacy for Japanese Healthcare

Enabling Secure Biomedical AI in Restricted Clinical Environments.

Designed and engineered MediMask to facilitate secondary research by bridging the gap between data utility and patient privacy. In air-gapped hospital networks where cloud-based LLMs are restricted by security governance, MediMask provides a local, high-precision solution that anonymizes medical records with 90%+ accuracy, ensuring absolute data sovereignty.

90.40% Micro F1 Accuracy

158.64 Tokens / Sec (Peak)

42s Review Time / Record

Architectural Integrity

Zero-Disk-Write: In-memory processing architecture prevents sensitive data leakage even in hardware breaches.
Extraction-First Pipeline: Utilizes Qwen2.5-14B optimized for local 16GB VRAM hardware, focusing on PII extraction to eliminate generative hallucinations.

Operational Impact

Diff View UI: A comparative interface highlighting detected PII, enabling clinicians to verify and edit masks with high precision.
Human-in-the-Loop (HITL): Integrated verification strategy that ensures absolute data integrity for secondary research use.

Career Milestones

Jan 2024 – Present Lead AI & Infrastructure Solutions Architect MKI (U.S.A.), Inc. (Mitsui Knowledge Industry)

Orchestrating secure AI transformation for global enterprise clients. Specializing in high-stakes network defense, Zero Trust architecture, and Agentic AI deployment.

Apr 2019 – Nov 2023 Senior IT Infrastructure Engineer IIJ America | Torrance, CA

Designed and managed comprehensive IT infrastructure for 40+ enterprise clients. Deployed SASE and Zero-Trust network solutions utilizing Cato Cloud.

Oct 2018 – Mar 2019 Network Architect Toyota Systems | Aichi, Japan

Directed the 5-year mission-critical network strategy for the Toyota Group, centralizing SD-WAN and advanced security governance across 20+ member companies.

Oct 2010 – Sep 2018 Systems Engineer Internet Initiative Japan (IIJ) | Tokyo, Japan

Led large-scale network and security integrations for 30+ carrier-class and enterprise clients, ensuring global network high availability.

Professional Credentials

CCIE #49718 Cisco Certified Internetwork Expert (Routing & Switching)

CISSP Certified Information Systems Security Professional

PMP Project Management Professional

Azure Solutions Architect Expert AI, Cloud & Infrastructure Strategy

Academic Background

University of the People
Master of Science in Information Technology Expected Aug 2026
The University of Tokyo
Master of Science (M.S.), Integrated Life Science Mar 2010
Chiba University
Bachelor of Science (B.S.), Pharmaceutical Science Mar 2008
Nationally Licensed Pharmacist (Japan)
Ministry of Health, Labour and Welfare License Active

Publications & Presentations

Selected Publications

"RANK signaling induces interferon-stimulated genes in the fetal thymic stroma"
Biochemical and Biophysical Research Communications
Role: Statistical Data Analyst for large-scale microarray data (Bioinformatics) | Citations: 19 | View Journal

Invited Speaking

"Spotlight Seminar: U.S.-Japan Collaboration in AI and Technology" (2025)
Sponsored by the Consulate-General of Japan and Japan-America Society of the State of Washington (JASSW)
Seminar Details & Recap