Senior QA Engineer (Hybrid)
Nitro
| Company | Nitro |
| Category | Engineering |
| Location | Porto |
| Remote | Hybrid |
| Employment | Not stated |
| Level | Senior |
| Salary | Not stated by the employer |
| Posted | 11 May 2026 |
| Last verified | 5 Aug 2026 |
| Source | Employer ATS (greenhouse) |
Description
About Us:
A global SaaS leader for seamless digital document workflows, Nitro offers a suite of solutions for PDF, eSigning, identity verification and analytics supported by a best-in-class customer success and change management team. With more than 3 million licensed users and 13,000+ business customers across 157 countries, we serve 67% of the Fortune 500.
How We Work:
We aim to create an environment where talented individuals are empowered to excel. How we collaborate, innovate, and engage with one another is important to us. Our work is driven by 5 key principles:
One team, One mission Our collective dedication to Nitro's mission defines us. Together, we are building an environment where everyone feels like a valued part of something bigger than themselves.
Own it We take full ownership of our actions and decisions. We empower one another to lead with confidence, creativity, and a solutions-focused mindset.
Accountable to our customers We are dedicated to our customers and take our commitments seriously. We do what we say we are going to do.
Excellence in execution Driven by passion and precision, we exemplify excellence in our delivery with innovative, top-quality results.
Be bold, fail fast, learn faster We learn as we grow, dare to try, and bravely question. We are not chasing perfection but forever iterating towards it.
These guiding values shape our approach to work, fostering a culture where everyone is inspired to contribute their best.
What you'll do
Work with the team from the beginning : Be involved in work from its inception.
Help define and iterate on requirements : Bring the QA perspective to the early phases of development, iterating on plans with the team before work begins.
Expand platform coverage : Ensure tests accurately reproduce customer environments across multiple operating systems and configurations
Optimize execution : Maximize test suite performance through parallelization, intelligent test selection, caching, and efficient resource utilization
Drive reliability : Implement monitoring, alerting, and self-healing capabilities to maintain high availability
Surface actionable insights : Enhance error diagnostics so engineers can resolve issues quickly and move with confidence
Set technical direction : Evaluate and adopt modern tools, frameworks, and practices that advance our testing capabilities
What we're looking for
5+ years as a QA engineer with at least 2 years in a senior role, with expertise delivering and growing large-scale test frameworks
Strong programming skills , able to read, debug, and refactor test code and infrastructure
Performance and resource optimization : Proven ability to profile, analyse, and optimize test execution through parallelization, distributed testing, and resource management
Framework expertise : Experience with test automation tools (JUnit, TestNG, Google Test, Selenium) and evaluating new technologies
Problem-solving mindset : Strong ability to diagnose complex issues, identify root causes, and implement durable solutions
Project leadership : Autonomy to drive initiatives from conception through delivery, with accurate estimation and timeline management
Collaboration skills : Excellent communication with cross-functional teams including engineering, infrastructure, and QA
Agile experience, comfortable with Git, GitHub, JIRA, and Confluence
Fluent in English
Nice to have
CI/CD proficiency : experience with CI/CD platforms (Jenkins, GitHub Actions, GitLab CI), containerization, and infrastructure as code
Performance testing, load testing, and benchmarking experience
Test observability and monitoring tools
Why Nitro? Along with our regular benefits and programs (including health, dental, vision, and retirement as standard), we are also very proud to offer a few additional initiatives to fut