Oyeyemi Okikiola

Results-driven Senior Quality Assurance Engineer with strong expertise in manual and automation testing, API validation, and defect management. Experienced in leveraging AI-assisted testing tools and intelligent automation techniques to enhance test coverage, accelerate defect detection, and optimize QA processes. Skilled in delivering high-quality software through structured testing methodologies, detailed test planning, and continuous improvement practices.

Full-time Quality Assurance Engineer at Nexaya Technology (2024-10 – Present)

• Performed QA activities on applications including Bii User App, Store Manager, and Admin Dashboards.
• Conducted functional testing, audits, and quality validation against requirements.
• Led defect analysis and root cause identification (RCA & CAPA).
• Improved QA processes through automation and continuous monitoring.
• Executed regression testing to maintain system integrity after updates.
• Managed cross-functional teams and stakeholders to optimize the development system, facilitate bug troubleshooting, and ensure project quality and timeline adherence.

Full-time Quality Assurance Engineer at Babskenky & Company (2026-01 – 2026-03)

• Contributed to QA for a Learning Management System (LMS), ensuring smooth delivery of learning content and user interactions.
• Tested core features such as course management, user onboarding, and assessments.
• Executed functional, non-functional, regression, and UAT testing.
• Reported and tracked defects with detailed documentation using Jira.

Full-time Quality Assurance Engineer at Sterling Bank (2025-07 – 2026-02)

• Ensured high system reliability through regression and UAT testing.
• Contributed to the quality assurance of financial applications, ensuring accuracy, security, and compliance with banking and regulatory standards.
• Validated end-to-end transaction workflows, including transfers, bill payments, airtime purchases, and account operations.
• Performed API testing on financial services and integrations, including payment gateways and NIBSS (Nigeria Inter-Bank Settlement System) for interbank transfers.
• Improved API reliability and integration success rate by 40% by validating NIBSS and payment gateway interactions, ensuring accurate and secure transaction processing.
• Tested integrations with third-party payment providers (e.g., card payments, USSD, and mobile payment services) to ensure seamless transaction processing.
• Executed functional, regression, integration, and UAT testing to maintain system stability across releases.
• Accelerated defect resolution turnaround time by 30% through effective collaboration with developers and detailed defect reporting, leading to faster and more stable releases.
• Verified data consistency between frontend applications, backend systems, and external financial services.
• Conducted negative and edge-case testing on transaction flows to validate system resilience and proper error handling.
• Reduced post-release transaction-related defects by 35% through thorough regression testing and improved test coverage of critical financial workflows.
• Performed database validation using SQL queries to ensure accurate transaction logging and reconciliation.
• Ensured compliance with security standards by validating encryption, authentication, and secure handling of sensitive financial data.
• Collaborated closely with developers, product managers, and business analysts to resolve defects and improve system performance.

Full-time Quality Assurance Engineer at Tanta Innovatives (2025-04 – 2025-07)

Tested Application

• Created and maintained comprehensive test plans, detailed test cases, and robust defect tracking systems using Jira to ensure high product quality.
• Contributed to QA for LMS platform.
• Designed and executed test plans, cases, and defect tracking processes.
• Participated in Agile ceremonies and ensured full test coverage.
• Executed thorough regression testing after major system updates to validate integrity and minimize post-release defects.
• Improved user experience through usability feedback and defect prevention, resulting in a better overall user experience.

Full-time Quality Assurance Engineer at Coronation Technology (2023-01 – 2025-04)

Tested Applications:,,, Coronation Wealth Mobile App,,

• Contributed to the quality assurance of multiple platforms, including corporate websites, wealth management mobile applications, mediated portals, brand portals, and insurance platforms.
• Led end-to-end testing across key systems such as the Coronation Website, Wealth Mobile App, Mediated Portal, Brand Portal, and Insurance Websites.
• Designed and executed comprehensive test strategies, achieving 95%+ test coverage across critical user flows.
• Identified and resolved 150+ defects, reducing post-release issues by approximately 40%.
• Verified role-based access controls across multiple user roles, reducing authorization-related defects by 30%.
• Performed API testing on critical services, ensuring 100% validation of request/response structures and authentication flows.
• Conducted cross-browser and cross-device testing, improving user experience consistency across platforms by 35%.
• Executed regression testing across multiple releases, preventing major production defects in 90% of deployments.
• Performed performance testing using JMeter, identifying bottlenecks and improving system response time by 25%.
• Validated data accuracy across frontend and backend systems, ensuring near-zero data inconsistency in production.
• Reviewed and streamlined policy documentation, improving process clarity and reducing operational ambiguity by 30%.
• Collaborated with cross-functional teams to accelerate bug resolution, reducing average defect turnaround time by 35%.
• Developed and maintained automated test scripts using Cypress, Selenium, and Postman, improving test execution efficiency by 60%.
• Monitored production systems and conducted post-release validation, contributing to 99% system stability uptime.
• Measured and reported key quality metrics such as defect density, test coverage, and pass/fail rates to stakeholders.

Full-time Software Quality Assurance Analyst at Hazon Holdings (2021-12 – 2023-01)

Tested Applications:,,,,

• Successfully tested and navigated a diverse technological landscape across multiple domains including E-commerce (flexdeals), Agency Banking (flexmonie), Hospitality (wellness), Telecommunication (flexmobile), and Ecosystem/Startup (startup Lagos).
• Delivered projects to target specifications with high accuracy and efficiency.
• Performed comprehensive end-to-end testing on various websites and mobile applications to ensure seamless user workflows.
• Improved team processes through continuous feedback and analysis.
• Developed test plans, detailed test cases, and robust bug tracking and reporting processes.
• Promoted continuous improvement by actively problem-solving and sharing suggestions to optimize team operations.
• Applied critical and analytical thinking to analyze problems, evaluate solutions and select best decisions.
• Engaged with stakeholders to build relationships and brand awareness.

Full-time Software Quality Assurance Analyst at Coxena Ltd (2019-12 – 2021-12)

• Performed QA on cryptocurrency platforms (web & mobile).
• Executed API, UI, regression, performance, and UAT testing.
• Developed test strategies and automated testing frameworks.
• Collaborated with developers to enhance system quality and performance.
• Liaised with the product managers and developers to implement controls, develop protocols and conceptualize improvements.
• Analyzed complex problems to develop reproducible defect cases and created detailed documentation for the development team.

Bachelor of Arts in Political Science – University of Ibadan (2019-12)