Infatica.io is a integral provider of proxy and DaaS solutions. We're looking for a hands-on Senior QA Engineer to work across two product lines: our web/SaaS product and our technology platform for scraping, data, and AI. The role combines manual testing, automation, and the development of engineering quality practices.

Key Responsibilities:

Product Testing

- Conduct functional, integration, regression, and smoke testing of web products.
- Test APIs, integrations, and microservice interactions.
- Create and maintain test cases, checklists, and regression suites.
- Write and maintain automated tests in Python and TypeScript/JavaScript.
- Integrate automated checks into the CI/CD pipeline.
- Collaborate with product managers, developers, and designers on implementation quality.

Data, Scraping & AI Product Testing

- Test scraping processes, data pipelines, and distributed services in live environments.
- Test retries, rate limits, partial failures, degradation of external sources, and process recovery.
- Perform load and performance testing of critical services.
- Contribute to automated quality gates and quality metrics.
- Apply AI tools for test generation, log analysis, edge-case discovery, and regression automation.

Requirements

-
6+ years of experience in QA / Quality Engineering.
- Strong hands-on manual testing experience with complex web and SaaS products.
- Test automation experience in Python and TypeScript/JavaScript.
- Solid understanding of API testing, microservices,



and distributed systems.
- Experience with CI/CD and Docker.
- Experience with Grafana, Jaeger, OpenTelemetry, or similar observability tools.
- Performance testing experience.
- Comfort working with logs, metrics, and production incidents.

Nice to Have

- Understanding of HTTP, DNS, TLS, proxy networks, caching, queues, retries, and rate limiting.
- Experience testing scraping, data platform, or high-load API products.
- Experience with Kubernetes.
- Experience integrating automated tests into CI/CD pipelines.
- Practical experience using AI in test automation.
- Experience with SLI/SLO.
- Experience testing AI functionality, eval pipelines, or golden datasets.

What Matters for This Role

We're looking for a self-driven engineer who's equally comfortable testing a product by hand, writing automated tests, digging into architecture, logs, and pipelines, and systematically improving product quality — without moving into people management.

Benefits

-
Remote work flexibility
- High autonomy in shaping testing processes and quality practices
- Work on both a SaaS product and a cutting-edge scraping/data/AI platform
- Competitive compensation package

Join Us

If you enjoy owning quality end-to-end — from manual exploratory testing to automation and production diagnostics — and want to work across both a web/SaaS product and a high-load data platform, we'd love to hear from you.

📌 Senior QA Automation Engineer (España)
🏢 Infatica.io
📍 España