Bashir Aremu Oluwatoyin

Application Security Engineer | Cybersecurity Specialist
Abuja, NG.

About

Highly analytical and results-driven professional with over 5 years of experience in financial operations and 2 years in frontend development, now pivoting to Application Security and Cybersecurity. Possessing a strong foundation in secure application development, risk management, and operational oversight, I excel at bridging business needs with robust technical security solutions. Adept at identifying vulnerabilities, implementing defensive measures (Blue Team), and conducting offensive simulations (Red Team), including emerging AI red teaming, to enhance system resilience and data integrity.

Work

Perk Fragnances Ltd
|

Frontend Developer

Lagos, Lagos, Nigeria

Summary

Led frontend development for a rapidly growing e-commerce platform, focusing on secure feature implementation and user experience.

Highlights

Developed and secured a comprehensive user authentication system, including robust login and signup features, to protect user data and prevent unauthorized access.

Implemented secure Add to Cart functionality and product review capabilities, ensuring data integrity and preventing common web vulnerabilities.

Integrated Flutterwave for secure payment processing, safeguarding sensitive financial transactions and adhering to industry security standards.

Established an efficient order management system with clear error messaging, enhancing data consistency and enabling rapid identification of potential anomalies.

beautyspaceng
|

Front-end Developer Intern

Lagos, Lagos, Nigeria

Summary

Contributed to frontend development and learned secure coding practices within a fast-paced agile environment.

Highlights

Developed and implemented frontend components and logic, gaining proficiency in the React ecosystem (Redux, Formik), while adhering to secure coding best practices.

Collaborated with senior developers to build and refine features, contributing to a robust codebase and understanding vulnerability mitigation strategies.

Managed tasks and workflows using Jira for agile development, ensuring timely delivery and contributing to secure development lifecycle processes.

Acquired knowledge in staging and production development processes, enhancing understanding of secure deployment pipelines and release management.

Zenith Bank Plc
|

Team Lead / Cash Officer

Nigeria, Nigeria

Summary

Oversaw cash and treasury operations, ensuring compliance, risk mitigation, and operational efficiency within a banking environment.

Highlights

Supervised operational activities in the Cash & Treasury (C&T) unit, ensuring smooth transaction processing and exercising authority to override transactions within defined limits, demonstrating strong risk control.

Ensured frequent call-overs of previous day's transactions by unit members, conducting regular reviews to maintain high accuracy and prevent financial losses.

Balanced daily vault figures to ensure physical cash aligned with system records, upholding financial integrity and preventing discrepancies.

Supervised ATM operations, ensuring adequate cash loading and functionality for optimal customer service and preventing service disruptions.

Zenith Bank Plc
|

Banking Operations Officer

Lagos, Lagos, Nigeria

Summary

Managed diverse banking operations, focusing on compliance, customer service, and process optimization to enhance security and efficiency.

Highlights

Processed FIRS VAT/WHT and LIRS (PAYE) transactions, providing expert advice to customers on bank policies and ensuring regulatory compliance.

Advised customers on E-channel products and account security, enhancing their ability to safeguard accounts from fraudsters and promoting secure digital banking practices.

Supervised operational activities in the C&T unit, refining transaction processes to enhance efficiency and implementing a daily review system that increased accuracy of posted transactions by over 25%, preventing potential losses.

Enforced compliance with operational controls across three departments, resulting in a 25% reduction in process deviations and an increase in overall adherence to established protocols, significantly improving team accountability and performance.

Volunteer

Lagos State University Teaching Hospital
|

Voluntary Intern (IT/Network)

Lagos, Lagos, Nigeria

Summary

Managed and maintained critical IT infrastructure and networks, ensuring system security and operational continuity for a medical facility.

Highlights

Managed and maintained the organization's computer networks, including Local Area Networks (LANs) and Wide Area Networks (WANs), ensuring robust network security and uptime.

Configured, installed, and troubleshot network hardware and software, implementing security patches and configurations to protect against unauthorized access.

Installed and maintained CCTV systems across the facility to enhance physical security and ensure the safety of patients and staff.

Installed, configured, and updated operating systems and software, ensuring systems were secure, patched, and compliant with best practices.

Education

Nysc Primary Assignment (Ado Grammar School Ado-Ekiti)
Ado, Ekiti, Ekiti State, Nigeria

ICT Teacher

Computer Science

Courses

Taught computer science to junior secondary classes, fostering foundational technical literacy.

Managed computers donated under the NITDA scheme, ensuring their proper functionality and security.

Addressed computer-related needs and problems for teachers and students, providing technical support and troubleshooting.

Certificates

Andela React Learning Program Certificate

Issued By

Andela supported by Meta and PluralSight

CCNA

Issued By

Cisco

Information Technology Infrastructure Library (ITIL) Foundations

Issued By

ITIL

Internet and Computing Core Certification Examination (IC3)

Issued By

Certiport

Skills

Programming Languages

JavaScript, Golang, HTML, CSS.

Frontend Frameworks

React, React Native, Next.js, Tailwind CSS.

Application Security (AppSec)

Secure SDLC, Vulnerability Assessment, Web Application Security, API Security, Authentication Systems, Payment Processing Security, Data Integrity, Secure Coding Practices.

Cybersecurity Operations

Blue Team Operations, Red Team Operations, Threat Detection, Incident Response, Risk Management, Compliance (GRC), Fraud Prevention, Access Control.

Network & System Security

Network Security, Firewalls, IDS/IPS, LAN/WAN Management, Operating System Security, Patch Management, Physical Security (CCTV).

AI Security

AI Red Teaming, Adversarial AI.

Tools & Methodologies

Jira, Agile Development, Git, Redux, Formik, Algolia.

Databases

PostgreSQL.

Interests

Hobbies

Music, Sport.