DO

Dolapo Oguntoyinbo

Senior Quality Assurance Engineer

Lagos, Nigeria

ABOUT

I am a results-driven QA Engineer with 7+ years of experience across mobile (Android/iOS), web, API, and core banking applications. Currently a Lead QA Analyst managing end-to-end quality assurance across multiple digital products. Skilled in testing applications with staggered release cycles, validating third-party integrations (Paystack, Hydrogen, Walls&Queen, SmileID, Mono), and collaborating across firmware, software, and networking layers. Strong experience in ecommerce and financial systems, compliance verification, and implementing automation frameworks including Selenium, CI/CD, Cypress, Playwright, and Appium. Known for improving product reliability, advancing QA processes, and ensuring consistent delivery of high-quality software.

SKILLS

AndroidiOSAppiumCypressPlaywrightManual Testing
PaystackHydrogenFlutterwaveStripeSmileIDMono
VPNsCloudflareFirewallsLoad Testing
Regression planning for staggered deployments
SeleniumCypressAppiumJavaJavaScript
Azure DevOpsGitHub ActionsJenkins
Auth validationData validationAPI securitySession securityInput validationNetwork security3rd party integrationsLog validation

EXPERIENCE

Senior Quality Assurance Engineer

2022-08 - Present

Klemweb Integrated Business Ltd • Lagos, Nigeria

Managing end-to-end quality assurance across multiple digital products with focus on improving release stability, validating third-party integrations, and implementing automation frameworks. • Improved release stability by designing and implementing end-to-end test strategies that reduced post-deployment defects by an estimated 35%. • Strengthened QA capability by mentoring junior testers and standardizing test documentation, increasing team efficiency and reducing test cycle time. • Ensured secure and seamless transactions by validating third-party payment integrations (Stripe, Paystack, Flutterwave) across multiple environments. • Enhanced app resilience by executing tests under varied network conditions (Cloudflare, VPNs, firewalls), identifying configuration-related issues early. • Supported successful multi-product rollouts through rigorous regression planning and coordination for staggered release cycles. • Improved delivery speed by integrating automation into CI/CD pipelines using Jenkins and GitHub Actions. • Established measurable quality baselines by tracking KPIs, coverage metrics, and compliance standards.

Senior Quality Assurance Engineer

2024-03 - 2025-09

Sterling bank • Lagos, Nigeria

Led quality assurance for multiple high-traffic financial applications including the bank's first core banking app SEABASS, ensuring performance, accuracy, and regulatory compliance. • Played a key QA role in launching SEABASS, the bank's first core banking app processing ₦2B+ transactions, ensuring performance, accuracy, and regulatory compliance. • Delivered end-to-end quality validation for 12+ high-traffic financial applications (AltInvest, AltPro, OneBank, AltMall, AltConnect, Activ8, etc.) across iOS, Android, and web. • Reduced production issues by implementing structured regression cycles for staggered releases on mission-critical banking apps. • Improved operational reliability by performing network and firmware-level testing on banking infrastructure supporting inward/outward transactions. • Enhanced automation culture by writing scripts and integrating test workflows into Azure DevOps pipelines. • Strengthened internal controls by validating admin platforms and transaction modules used by multiple business units.

Quality Assurance Engineer

2023-02 - 2024-04

Oxygen X • Lagos, Nigeria

Validated complex financial workflows and improved compliance through KYC/identity integrations, while supporting reliable mobile deployments across Android and iOS platforms. • Ensured seamless user experience by validating complex financial workflows across loans, repayments, card payments, and eligibility checks. • Improved compliance and fraud prevention by validating KYC/identity integrations such as SmileID for biometric verification. • Supported reliable mobile deployments by executing regression cycles for staggered releases across Android and iOS. • Improved delivery efficiency by collaborating with DevOps to implement CI/CD pipelines for mobile builds. • Strengthened platform stability by identifying defects across microservices and ensuring coordinated fixes with engineering teams.

Quality Assurance Engineer

2019-05 - 2022-08

Sproxil Nigeria Limited • Lagos, Nigeria

Executed manual and automation tests on enterprise health and supply chain platforms, ensuring compliance with ISO standards and improving product reliability. • Improved product reliability by executing manual and automation tests on enterprise health and supply chain platforms. • Ensured compliance with ISO standards by applying structured documentation and testing methodologies. • Enhanced cross-functional communication by reporting defects clearly and collaborating closely with developers to accelerate resolution times. • Contributed to continuous team effectiveness by participating in Agile ceremonies and facilitating knowledge-sharing sessions. • Supported multiple stable releases by improving test coverage and refining test workflows.

EDUCATION

Henley Business School, University of Reading

2023-04 - 2017-11

Henley Business Management in Business Management

Ekiti State University

2012-01 - 2016-09

Bachelor of Science