About
William Asare Yirenkyi
Tech Audit, Cybersecurity and GRC. CISA and CISM. ex-Big4. Building audit platforms at the intersection of compliance and code.
I am a technology auditor and cybersecurity professional with years leading internal control evaluations, IT risk assessments and audit execution. I spent three years at PwC in Risk Assurance and Cybersecurity covering SOX ITGC, SOC, and PCI DSS engagements, then a year and a half as an independent IT auditor running ITGC and Windows and UNIX platform reviews. What sets my work apart is that I ship the tooling, not just the workpaper. I build production audit platforms (AuditAI and AuditLens) that map controls across NIST AI RMF, ISO 42001, SOX ITGC, NIST 800-53, and CSF 2.0, and enforce audit defensibility at the database layer. I hold CISA, CISM, eJPT, the INE Certified Cloud Associate, and CompTIA Security+, and I am completing an MSc in IT Auditing and Cybersecurity at Temple's Fox School of Business (GPA 4.0, Dean's List, ISACA Philadelphia Chapter Scholar).
Certifications
Education
Aug 2025 - Present
MSc, IT Auditing and Cybersecurity
Temple University, Fox School of Business
Philadelphia, PA · GPA 4.0 · Dean's List
Sep 2013 - Jul 2017
BSc, Computer Science
Kwame Nkrumah University of Science and Technology
Ghana
Experience
Feb 2024 - Jul 2025
Independent IT Auditor
Independent Consultant · Japan
Led IT General Controls (ITGC) audits across client engagements, delivering on time and under budget. Conducted Windows and UNIX platform-level configuration reviews that surfaced multiple weaknesses and drove targeted remediation.
Jul 2022 - Nov 2023
Senior Associate, Risk Assurance & Cybersecurity
PricewaterhouseCoopers (PwC) · Ghana
Ran three to four concurrent risk-based IT audits and cybersecurity assessments for financial services clients across the full audit lifecycle. Authored findings and remediation paths reviewed at manager level. Aligned testing with SOX ITGC and PCAOB requirements; coached associates to independent-contributor status within six months.
Feb 2020 - Jun 2022
Associate / Experienced Associate, Risk Assurance & Cybersecurity
PricewaterhouseCoopers (PwC) · Ghana
Performed concurrent SOX ITGC, SOC, and PCI DSS testing for financial services clients. Built ACL-based automations that freed reviewers from rote validation, and translated technical findings into business-language reporting that met PwC quality standards.
Sep 2019 - Jan 2020
Cybersecurity Specialist
Maxim Nyansa IT Solutions · Ghana
Planned IT risk assessments and vulnerability scans aligned with ISO 27001 and GDPR. Authored priority-ranked remediation plans tailored to each client's risk profile.
Aug 2018 - Sep 2019
Applications Support Staff
Stanbic Bank · Ghana
Built internal applications and process automations end-to-end, gaining hands-on SDLC experience from requirements through production support.
Honors & awards
2025 - 2026
ISACA Philadelphia Chapter Scholarship
2025 - 2026
Dean's Merit Scholarship Award · Dean's List
Volunteer & teaching
Jul 2018 - Present
Cybersecurity Trainer
Maxim Nyansa IT Solutions