# Michael Adeyanju — Penetration Tester & Security Consultant > Senior Security Engineer specializing in application security for high-stakes fintech and regulated environments. Based in Lagos, Nigeria. Associated with Hackrowd. --- ## About Michael Adeyanju Michael Adeyanju is a Senior Security Engineer with 5+ years of experience helping fintechs and regulated organizations identify, exploit, and remediate critical security risks. His expertise spans web application security, mobile reverse engineering, and API security. He works closely with engineering and DevOps teams to embed security into the development lifecycle—not as an afterthought, but as a core component of product delivery. His approach combines deep technical expertise with clear communication, enabling stakeholders from CTOs to developers to understand and act on security findings effectively. ### Key Highlights - 5+ years in security engineering - Penetration testing & vulnerability assessment specialist - Cross-functional team collaboration - Experience in regulated fintech environments --- ## Services Offered ### Web Application Security Comprehensive security assessments of web applications to identify vulnerabilities before attackers do. OWASP Top 10 focused testing for production-ready applications. ### API Security Assessment In-depth analysis of REST, GraphQL, and SOAP APIs. Identify authentication flaws, injection points, and business logic vulnerabilities. ### Mobile Application Security Android and iOS security testing including static and dynamic analysis. Identify insecure data storage, weak cryptography, and communication vulnerabilities. ### Penetration Testing Simulate real-world attacks to uncover exploitable vulnerabilities. Detailed reporting with risk prioritization and remediation guidance. ### Threat Modelling (STRIDE) Proactive threat identification using STRIDE methodology. Map attack surfaces and prioritize security investments before development. ### DevSecOps & Secure SDLC Integrate security into CI/CD pipelines. Enable faster, safer releases with automated security testing and developer training. ### Reverse Engineering Android application reverse engineering to uncover hidden vulnerabilities, analyze malware, and validate security controls. --- ## Professional Experience ### Senior Security Engineer — Multigate Payment Limited (2024–Present) - Securing high-volume fintech infrastructure processing millions in transactions - Led 30+ comprehensive security assessments across web, mobile, and API platforms - Reduced exploitable threat vectors by 60% through systematic vulnerability remediation - Improved overall application security posture by 75% **Key Metrics:** 30+ Assessments | 60% Threat Reduction | 75% Security Improvement ### Security Engineer — Venture Garden Group (2022–2025) - Secured multiple fintech and enterprise platforms serving regulated industries - Conducted web, mobile, and API security reviews for critical applications - Improved remediation cycles and enabled secure, on-time releases - Collaborated with engineering teams to implement security best practices **Key Metrics:** 15+ Platforms Secured | 50% Faster Remediation --- ## Certifications ### Certified - **CompTIA Pentest+** — Penetration Testing - **SC-900** — Microsoft Security Fundamentals - **AZ-900** — Microsoft Azure Fundamentals ### In Progress - **CEH** — Certified Ethical Hacker - **AZ-500** — Azure Security Engineer - **OSCP** — Offensive Security Certified Professional --- ## Skills & Expertise ### Core Security Skills - Penetration Testing (Web, API, Mobile, Network) - Vulnerability Assessment & Management - Threat Modelling (STRIDE methodology) - Secure Code Review - DevSecOps & Secure SDLC - Android Reverse Engineering - OWASP Top 10 ### Technical Tools - Burp Suite, OWASP ZAP - Nmap, Metasploit - Frida, Jadx, APKTool - Git, CI/CD Pipelines - Cloud Security (Azure) --- ## Mentorship & Education Michael mentors aspiring cybersecurity professionals through the Hackrowd LearnCyber platform (https://learncyber.hackrowd.com), offering hands-on training in ethical hacking and penetration testing. --- ## Contact Information - **Email:** opeyemi9126@gmail.com - **LinkedIn:** https://www.linkedin.com/in/adeyanju-michael - **GitHub:** https://github.com/HackrowdSec - **Twitter:** https://twitter.com/hackrowdsec - **Website:** https://michaeladeyanju.com - **Organization:** Hackrowd (https://hackrowd.com) --- ## Location Lagos, Nigeria. Available for remote engagements worldwide. --- ## Frequently Asked Questions **What industries does Michael work with?** Primarily fintech and regulated industries, but available for security engagements across all sectors. **What types of penetration testing does Michael offer?** Web application, API (REST, GraphQL, SOAP), mobile (Android, iOS), and network penetration testing. **Is Michael available for consulting?** Yes. Reach out via email at opeyemi9126@gmail.com or through LinkedIn. **What is Hackrowd?** Hackrowd is Michael's security organization. LearnCyber by Hackrowd (https://learncyber.hackrowd.com) is an ethical hacking learning platform.