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I’m Adebiyi Johnson Olanrewaju, a Quality Assurance Engineer with 7+ years of hands-on experience building and executing strong test strategies and automation across web, mobile, APIs, and Web3/blockchain systems. I take full ownership of QA quality from planning through execution—covering UI, backend services, and critical blockchain/Cross-chain integrations—while continuously improving reliability, coverage, and test resilience. I enjoy modernizing QA by integrating automation frameworks into CI/CD pipelines (Jenkins and GitHub Actions) and, more recently, using agentic/LLM-driven testing approaches (including self-healing and multi-agent regression) to reduce maintenance effort and speed up feedback. I also bring performance and security awareness to my work, having supported OWASP-aligned checks and performance validation to help teams deliver stable, high-quality products.…I’m Adebiyi Johnson Olanrewaju, a Quality Assurance Engineer with 7+ years of hands-on experience building and executing strong test strategies and automation across web, mobile, APIs, and Web3/blockchain systems. I take full ownership of QA quality from planning through execution—covering UI, backend services, and critical blockchain/Cross-chain integrations—while continuously improving reliability, coverage, and test resilience. I enjoy modernizing QA by integrating automation frameworks into CI/CD pipelines (Jenkins and GitHub Actions) and, more recently, using agentic/LLM-driven testing approaches (including self-healing and multi-agent regression) to reduce maintenance effort and speed up feedback. I also bring performance and security awareness to my work, having supported OWASP-aligned checks and performance validation to help teams deliver stable, high-quality products.

Adebiyi Johnson Olanrewaju

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I’m Adebiyi Johnson Olanrewaju, a Quality Assurance Engineer with 7+ years of hands-on experience building and executing strong test strategies and automation across web, mobile, APIs, and Web3/blockchain systems. I take full ownership of QA quality from planning through execution—covering UI, backend services, and critical blockchain/Cross-chain integrations—while continuously improving reliability, coverage, and test resilience. I enjoy modernizing QA by integrating automation frameworks into CI/CD pipelines (Jenkins and GitHub Actions) and, more recently, using agentic/LLM-driven testing approaches (including self-healing and multi-agent regression) to reduce maintenance effort and speed up feedback. I also bring performance and security awareness to my work, having supported OWASP-aligned checks and performance validation to help teams deliver stable, high-quality products.…I’m Adebiyi Johnson Olanrewaju, a Quality Assurance Engineer with 7+ years of hands-on experience building and executing strong test strategies and automation across web, mobile, APIs, and Web3/blockchain systems. I take full ownership of QA quality from planning through execution—covering UI, backend services, and critical blockchain/Cross-chain integrations—while continuously improving reliability, coverage, and test resilience. I enjoy modernizing QA by integrating automation frameworks into CI/CD pipelines (Jenkins and GitHub Actions) and, more recently, using agentic/LLM-driven testing approaches (including self-healing and multi-agent regression) to reduce maintenance effort and speed up feedback. I also bring performance and security awareness to my work, having supported OWASP-aligned checks and performance validation to help teams deliver stable, high-quality products.

Available to hire

I’m Adebiyi Johnson Olanrewaju, a Quality Assurance Engineer with 7+ years of hands-on experience building and executing strong test strategies and automation across web, mobile, APIs, and Web3/blockchain systems. I take full ownership of QA quality from planning through execution—covering UI, backend services, and critical blockchain/Cross-chain integrations—while continuously improving reliability, coverage, and test resilience.

I enjoy modernizing QA by integrating automation frameworks into CI/CD pipelines (Jenkins and GitHub Actions) and, more recently, using agentic/LLM-driven testing approaches (including self-healing and multi-agent regression) to reduce maintenance effort and speed up feedback. I also bring performance and security awareness to my work, having supported OWASP-aligned checks and performance validation to help teams deliver stable, high-quality products.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Agentic AI QA Tester at Upivotal

June 1, 2025 - December 1, 2025

Spearheaded the shift from scripted automation to autonomous AI testing, deploying self-healing AI agents to plan and execute end-to-end regression suites for complex Salesforce environments. Engineered contextual datasets from Salesforce user journeys to improve autonomous decision-making and implemented agents that adapt automatically to Salesforce metadata changes without manual intervention. Monitored and optimized agent behavior to prioritize critical test paths and accelerate time-to-market. Built automation across Salesforce, web, and API modules using Testsigma, then rolled out agentic testing incrementally from smoke tests to broader module coverage based on performance benchmarks. Collaborated with DevOps to integrate autonomous AI test agents into CI/CD pipelines for real-time quality feedback.

Web3 Blockchain QA Tester (Lead) at Scrums.com

June 1, 2024 - January 1, 2026

Led QA planning and execution for a complex Web3 platform spanning web, mobile, and core blockchain transactions. Authored and executed comprehensive test plans focusing on blockchain concepts: smart contract testing, block testing, and fork testing. Developed API automation using Python and RestAssured for high-value blockchain transactions and wallet functionalities, ensuring reliability across cross-chain operations. Leveraged Web3 testing frameworks including Solidity to validate cross-chain transaction integrity. Contributed to CI/CD by integrating automated regression suites and conducting performance testing. Executed performance tests across all blockchain transactions to optimize system throughput and latency. Focused automation: scaled API automation using Python for complex blockchain operations and utilized Cypress and Playwright for web and mobile UI testing. Trained junior QA engineers in software methodologies and testing logic. Maintained and enhanced the Test Automatio

Web3 Blockchain QA Tester at Scrums.com

June 1, 2024 - May 1, 2025

Led QA planning and execution for a complex Web3 platform, ensuring quality across Web, Mobile, and core blockchain transactions. Authored and executed test plans for Smart Contract testing, Block testing, and Fork testing. Developed API automation using Python and RestAssured for blockchain transactions, wallet functionality, and Web3 optimization. Ensured cross-chain transaction integrity through targeted test strategies and contributed to CI/CD by integrating automated regression suites and conducting performance testing.

Senior Software QA at Atos - MTN (Remote)

May 1, 2023 - June 1, 2024

Reviewed requirements, specifications, and technical designs and provided actionable QA feedback. Managed the full QA lifecycle for a large-scale native mobile application (iOS and Android), including functional, regression, performance, and UI/UX testing. Integrated mobile automation tests into the Jenkins CI/CD pipeline, improving critical mobile build feedback loops and reducing response time by 60%. Performed security validation aligned with OWASP Mobile Top 10 principles across mobile access control and data handling. Produced detailed test plans/cases, estimated and coordinated testing activities, designed and executed automation scripts, and tracked quality metrics using TestRail/Reqtest. Ran load/performance testing with JMeter and HP LoadRunner and supported GUI and API testing with Postman and RestAssured.

Senior Software QA (Lead) at Atos - MTN

May 1, 2023 - June 1, 2024

Reviewed requirements, specifications, and technical design documents to provide timely and meaningful feedback. Native App Ownership: Managed the full QA lifecycle for a large-scale mobile application, encompassing functional, regression, performance, and UI/UX testing for both iOS and Android native components. CI/CD Integration: Integrated mobile automation tests into the Jenkins CI/CD pipeline to support continuous delivery, providing rapid feedback on critical mobile builds. Security & Compliance: Performed security validation (aligned with OWASP Mobile Top 10 principles) across mobile access control and data handling to ensure compliance standards. Create detailed, comprehensive, and well-structured test plans and test cases. Estimate, prioritize, plan, and coordinate testing activities. Design, develop and execute automation scripts using automation tools. Identify, meticulously document, and track bugs thereby reducing production bugs by 40%. Perform thorough regression testing

Senior Software QA at Atos MTN

May 1, 2023 - June 1, 2024

Managed the full QA lifecycle for a large-scale mobile application, encompassing functional, regression, performance, and UI/UX testing for both iOS and Android native components. Integrated mobile automation tests into the Jenkins CI/CD pipeline to support continuous delivery and rapid feedback on critical mobile builds. Performed security validation aligned with OWASP Mobile Top 10 principles and created comprehensive test plans and test cases.

Senior Software Quality Assurance Engineer at Indicina (Lagos, Remote)

October 1, 2021 - May 1, 2023

Performed requirement and design reviews and created structured test plans and test cases. Built and executed automation scripts using TypeScript/JavaScript/Node.js-based frameworks. Identified, documented, and tracked defects, and performed regression after fixes. Coordinated testing activities (estimation, prioritization, planning) and collaborated with developers and product managers to define testable requirements. Ran performance testing using k6 and HP LoadRunner. Conducted API testing with Postman and RestAssured and supported testing for both web services and mobile applications, ensuring coverage for GUI and API flows while tracking QA metrics such as defect density and open defect counts via TestRail/Reqtest.

Senior Software Quality Assurance Engineer at Indicina

October 1, 2021 - May 1, 2023

API Automation and Manual testing; reviewed requirements, specifications, and design documents; created detailed test plans and cases; designed, developed and executed automation scripts; tracked defects and performed thorough regression testing. Led testing for web and mobile applications, maintained testing processes, and collaborated with developers and product managers to ensure quality. Worked with TypeScript/JavaScript/Node-based automation, TestRail/Reqtest for test management, and performed load testing with K6 and HP LoadRunner.

Quality Assurance Engineer at Fincode (United Kingdom)

July 1, 2020 - September 1, 2021

Implemented and executed Cypress UI automation with reporting. Delivered API testing using RestAssured and Postman, leveraging TypeScript/JavaScript/Node.js automation frameworks. Conducted performance testing with k6. Developed test plans, test scripts, and reporting documents. Supported web application testing and Android/iOS application testing, ran application test case scenarios, and worked within Agile ceremonies (sprint planning and daily implementation). Produced test plan/test case/bug report documentation, tracked and managed defects, executed regression, and contributed to test automation processes for multiple application types.

Quality Assurance Engineer at Fincode

July 1, 2020 - September 1, 2021

Implemented Cypress UI automation and reporting; delivered API testing using REST Assured and Postman; leveraged TypeScript, JavaScript, and Node-based automation frameworks. Conducted performance testing with K6 and developed test plans, scripts, and bug reports. Performed manual testing across web and mobile platforms, participated in sprint planning, and managed regression testing and ISO/compliance-aligned practices.

Software Tester / Tech Support at 3line POS Management (Fintech V.I Lagos)

December 1, 2018 - June 1, 2020

Prepared and documented audit artifacts including application test cases and user experience documents. Performed manual testing for mobile and web platform features and designed automation testing processes. Tested web applications with Selenium and Katalon Studio and supported Point of Sale (POS) applications. Investigated and documented defects, collaborated with project managers and developers to implement fixes, and supported Agile practices. Conducted API tests with Postman/RestAssured and participated in daily scrum meetings. Helped deploy ISO practices, supported customers/agents via calls and emails, and reviewed product performance and functionality. Worked on end-to-end customer/application support (bank support) including regression testing (manual/automated) and Swagger/Postman-based API testing.

Software Tester/Tech Support at Fintech V.I

December 1, 2018 - June 1, 2020

Manual testing of the mobile and web-based platform. Designing automation test process and design. Web application testing using open-source tools (Selenium, Katalon Studio). Testing/Support of POS Applications. Analyzing and reporting defects; Investigate bugs reported, document and work with the project manager and development team to implement fixes. Agile methodologies practices. API tests using postman and RestAssured. Daily scrum meetings. Deployment of ISO practices. SQL. Clients/agents relationship through calling, emailing and providing solutions to technical issues. Reviews on products performance and function. End to end Customer/application support (Bank support). Software Testing, Regression Testing (manual/automated). API Testing (postman/swagger).

Software Tester/Tech Support at Fintech V.I Lagos

December 1, 2018 - June 1, 2020

Manual testing of mobile and web-based platforms; design and implementation of automation test processes; web-based testing using Selenium and Katalon; testing/Support of POS applications; defect analysis and coordination with project teams; agile practices; API testing with Postman/RestAssured; end-to-end customer support and ISO practices.

Education

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