Degemar Pereira
@degemarpereira
I build scalable test automation and quality gates for high-volume platforms.
BrazilWhat I'm looking for
At Pyyne, I architect CI/CD test automation pipelines in GitHub Actions, build Playwright API suites for backend contracts, and drive Shift-Left collaboration across development and product teams.
Previously, at TODOS Empreendimentos, I increased automated test coverage by 30% for a platform serving more than 6 million active users and validated 30+ API endpoints, cloud logs, and data integrity. At SenseData, I built Selenium and Python automation frameworks, achieved 100% business-rule coverage on critical features, and co-led a Jenkins migration that reduced infrastructure costs by 15%.
I combine Playwright, Selenium, WebdriverIO, JavaScript, TypeScript, Python, API testing, and CI/CD practices to make quality measurable and actionable throughout the SDLC.
Experience
Work history, roles, and key accomplishments
- Architected CI/CD test automation pipelines using GitHub Actions, establishing continuous quality gates for pull request validation and deployment cycles.
- Designed and maintained automated API test suites using Playwright, validating backend integration contracts and microservices reliability.
- Led SDLC process optimization initiatives, driving Shift-Left testing practices
- Designed and executed manual and exploratory tests, ensuring comprehensive coverage of functional and non-functional requirements
- Ensured software quality and system stability for a high-volume platform actively serving over 6 Million active users.
- Increased automated test coverage by 30% using Playwright (JavaScript), reducing manual regression effort and accelerating releases
- Conducted manual and exploratory tests across web features, identifying critical defects prior to production releases
- Delivered end-to-end quality assurance for the ZCC customer communications platform, ensuring high performance for over 10,000 active enterprise clients.
- Developed and maintained automated test scripts using WebdriverIO (JavaScript), expanding automated regression coverage
- Engineered maintainable test automation frameworks using Selenium with Python, substantially reducing manual regression execution time.
- Achieved 100% business rule coverage on critical core features, guaranteeing zero critical defect leakage to production environments.
- Co-led CI/CD pipeline migration to Jenkins, achieving a 15% reduction in infrastructure costs while enhancing pipeline ex
Substitute Teacher
Feb 2020 - Jul 2021 (1 year 5 months)
- Delivered 5 technical courses to 60+ students per semester: Operating Systems, Computer Network Infrastructure, Distributed Systems, Introduction to Computing, and Network Environment Programming
- Developed strong skills in technical documentation, structured communication, and knowledge transfer
- Strengthened ability to review technical designs and explain complex systems clearly
Education
Degrees, certifications, and relevant coursework
Universidade Federal do Rio Grande do Norte
Master's degree, Information Technology
2020 - 2023
Advanced research in IoT security, developed a authentication module for MQTT protocol
Trybe
Web Development, Web Development
2021 - 2022
Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte
Technologist, Computer Systems Networking and Telecommunications
2017 - 2020
Foundation in networking, distributed systems, operating systems, and software development
Universidade Federal do Rio Grande do Norte
Technical, Electronic
2017 - 2019
PUC Minas
Postgraduate Degree, quality engineer and software testing
2026 -
Activities and societies: QA Engineering best practices
Software testing methodologies, quality processes, and engineering best practices
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Job categories
Skills
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