Olayimika Johnson

I am a cybersecurity professional with hands-on experience in penetration testing, vulnerability assessment, and securing enterprise systems. I work with tools like Burp Suite and Wireshark to identify and fix security weaknesses across web, network, and cloud environments. I'm also interested in how AI can improve threat detection and security automation, alongside a growing focus on blockchain and Web3 security. I enjoy collaborating, learning, and contributing to the cybersecurity community.

Machine Learning Specialist at Awarri (2025-07 – 2026-03)

• Collaborated with data scientists and software engineers to deploy ML models into production environments.
• Conducted data preprocessing, feature engineering, and model optimization using tools.
• Built and maintained data pipelines to support training and real-time inference.
• Evaluated model performance with cross-validation, A/B testing, and business KPIs.

Social Media Manager at Joy Cometh Football Club (2025-03 – Present)

• Developed and executed social media strategies to boost fan engagement and brand visibility.
• Managed content creation, scheduling, and community interactions across multiple platforms.
• Collaborated with marketing and PR teams to promote events and campaigns.

Penetration Tester at Hacktify Cybersecurity (2025-02 – 2025-03)

• Conducted in-depth exploitation and security research on web application vulnerabilities, including Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), and SQL Injection (SQLi), identifying critical flaws and recommending effective mitigation strategies.
• Actively participated in Capture the Flag (CTF) challenges, gaining hands-on experience in areas such as cryptography, Open-Source Intelligence (OSINT), Web3, and blockchain technology, sharpening skills in real-world security scenarios.
• Prepared comprehensive reports detailing security findings, offering actionable recommendations, best practices, and mitigation actions to improve clients' security posture and ensure compliance with industry standards.

Customer Care Representative at LBH Consulting Limited (2023 – 2023)

• Member of the Inbound bound call center team Communicate with customers using telephone and web based tools.
• Provide effective and timely lyre solution of arrange of customer inquiries.
• Strive for one-call resolution of customer issues.
• Strike a positive and cooperative tone with both customers and co-workers.
• Increase the customer experience by providing information on products, price plans, and services through up-selling opportunities.
• Maintain and update customer information.

Customer Care Representative at Sejoy Photography (2017 – 2019)

• In charge of the company supervision.
• Provide effective and timely lyre solution of arrange of customer inquiries Training and mentoring of new QAs.
• Publishing of Quality Reports and Trackers to ensure smooth running of day to day activities in the Quality Teaming critical weaknesses.

Advanced Blockchain – SAIL Innovation Lab, Lagos

Cybersecurity – 3MTT, NITDA

Upper Credit in Computer Science – University of Ibadan Consultancy Service Unit