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Hi, I'm Mustapha Olalekan, a detail-oriented Quality Assurance Engineer with strong expertise in API testing, backend validation, and end-to-end quality processes across Agile environments. I design test plans, execute manual and automated tests, and collaborate with developers and DevOps teams to ensure stable, secure, and high-performing releases. I bring a solid backend understanding that enables deeper root-cause analysis and early defect detection, contributing to reliable CI/CD-driven development cycles.…Hi, I'm Mustapha Olalekan, a detail-oriented Quality Assurance Engineer with strong expertise in API testing, backend validation, and end-to-end quality processes across Agile environments. I design test plans, execute manual and automated tests, and collaborate with developers and DevOps teams to ensure stable, secure, and high-performing releases. I bring a solid backend understanding that enables deeper root-cause analysis and early defect detection, contributing to reliable CI/CD-driven development cycles.

Mustapha Olalekan

QA Engineer, Full Stack Developer, Back-End Developer, +2

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Hi, I'm Mustapha Olalekan, a detail-oriented Quality Assurance Engineer with strong expertise in API testing, backend validation, and end-to-end quality processes across Agile environments. I design test plans, execute manual and automated tests, and collaborate with developers and DevOps teams to ensure stable, secure, and high-performing releases. I bring a solid backend understanding that enables deeper root-cause analysis and early defect detection, contributing to reliable CI/CD-driven development cycles.…Hi, I'm Mustapha Olalekan, a detail-oriented Quality Assurance Engineer with strong expertise in API testing, backend validation, and end-to-end quality processes across Agile environments. I design test plans, execute manual and automated tests, and collaborate with developers and DevOps teams to ensure stable, secure, and high-performing releases. I bring a solid backend understanding that enables deeper root-cause analysis and early defect detection, contributing to reliable CI/CD-driven development cycles.

Available to hire

Hi, I’m Mustapha Olalekan, a detail-oriented Quality Assurance Engineer with strong expertise in API testing, backend validation, and end-to-end quality processes across Agile environments. I design test plans, execute manual and automated tests, and collaborate with developers and DevOps teams to ensure stable, secure, and high-performing releases.

I bring a solid backend understanding that enables deeper root-cause analysis and early defect detection, contributing to reliable CI/CD-driven development cycles.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Work Experience

Quality Assurance Engineer / Backend Testing at 8medical

January 1, 2023 - Present

Led API and backend test planning and execution using Postman and Swagger; performed regression, integration, and system testing to ensure product stability. Validated wallet and payment workflows with Flutterwave integrations, collaborated with backend developers to debug issues and verify fixes, and participated in Agile ceremonies to ensure release quality and sprint readiness.

QA Engineer (API & Web Testing) at OverdoseTheLabel

March 1, 2022 - July 1, 2023

Led end-to-end testing of e-commerce REST APIs and admin portals; verified Paystack financial flows, transaction logs, and error handling. Documented test steps, defects, and release validations; performed post-deployment smoke tests and monitored production stability.

QA / Backend Support at Ikeja Electric

April 1, 2021 - March 1, 2022

Tested customer service and payment management systems within an Agile team; executed backend service test cases for Node.js-based applications. Logged, tracked, and validated defects to prevent recurrence, and supported UAT while improving internal testing processes.

Backend Developer with QA Responsibilities at Zacrac

January 1, 2020 - April 1, 2021

Authored unit, integration, and functional tests for backend services; assisted in CI workflow setup for automated builds and test runs. Streamlined admin testing using Retool to reduce manual workload.