Senior QA Engineer

Sur

📍 Buenos Aires, Buenos Aires C.F., Argentina 💼 Full-time 🕒 Posted March 01, 2026

Apply Now Similar Jobs

Job Description

Our Client is a US based security company looking for a Senior QA Engineer who thrives in complex, highly technical environments.  
You will own end-to-end manual and automated testing, ensuring the distributed services and endpoint applications (built in .NET, C++, and React) are secure, reliable, and compatible. This is not a button-clicking QA role — they need someone who can reverse-engineer bugs, write integration test harnesses, validate stateful client/server behavior, and think like an attacker or power user. 
What You Will Do: Define, own, and execute comprehensive test strategies across backend services, web frontends, and desktop apps on both Windows and macOS. 
Validate distributed system behaviors, including state synchronization, persistence, fault tolerance, and security guarantees. 
Create detailed, well-researched test plans and cases based on low-level system behavior, API contracts, and desktop workflows. 
Design and impleme...
            

Ready to Apply?

Submit your application today and join our talented team at Sur.

Submit Application

Job Details

Location Buenos Aires, Buenos Aires C.F.
Job Type Full-time
Category Other-General
Posted Date March 01, 2026
Application Deadline April 10, 2026