Senior Quality Engineer

About the role

As a Senior Quality Engineer, you’ll join the Core Software Quality Engineering organization and help ensure every Five9 release is reliable. You’ll work in a delivery team that owns an end-to-end, complex backend solution. You’ll build and maintain automated tests for our web frontend and REST APIs, and help modernize the Python-based framework behind them.

What you’ll do

• Design, write, and maintain end-to-end automated tests for the Five9 Virtual Contact Center application as part of a delivery team.
• Analyze test results using framework and product logs, and investigate failures down to root cause.
• Extend and support the Python automation framework, and build internal tools that make testing faster and more reliable.
• Modernize the framework by improving CI/CD integration, parallel execution, and stability, and by reducing flaky tests.
• Identify weak points in existing automated flows, fix them, and track their efficiency over time.
• Partner with Development, DevOps, and TechOps to align automation priorities with company strategy.
• Take part in Agile ceremonies (stand-ups, sprint planning, Increment planning) and contribute ideas that improve our tools and processes.

What you bring

• 5+ years of experience in test automation roles, with a track record of owning framework design or technical decisions.
• Hands-on experience with Python 3 (other OOP languages are a plus).
• Solid knowledge of programming techniques and algorithms, including OOP and multithreading.
• Experience automating REST APIs and/or SDK-type interfaces (Python, Java, C++, etc.).
• Strong Linux skills.
• Solid understanding of the software development lifecycle and testing methodologies.
• Experience with version control and issue tracking (Git, JIRA).
• Strong analytical and troubleshooting skills, and a collaborative approach to working across teams.

Nice to have

• Experience with Selenium.
• Experience designing or extending test automation frameworks (pytest, Robot Framework, or custom).
• Familiarity with CI/CD tools (Jenkins, GitLab CI, GitHub Actions).
• Experience with Docker, Kubernetes, or cloud environments (AWS/GCP).
• Knowledge of contact center, telephony, or CCaaS technologies (WebRTC, SIP, CTI).
• Experience mentoring other engineers.

Workplace location: This role is fully remote for candidates who reside outside Porto, Maia, Matosinhos, Gondomar, Valongo e Vila Nova de Gaia. Candidates who reside within those municipalities would be required to work in-office 3 days a week.

Benefits:

• Five9 Shares
• Bonus Scheme
• 10% Flex Benefit
• Meal Allowance
• Medical Insurance
• Life Insurance
• 25 day Annual Leave + Public Holidays