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Senior Software Development Engineer in Test - C#

Freelanceonsite5+ yrs📍 Dallas, Texas, 🇺🇸 United States🗣 English

Senior test automation engineer for SaaS platforms using C# and modern frameworks.

Design and build automated testing frameworks for cloud-based SaaS products in .NET/C# environments. You'll work hands-on with Selenium and Appium, embed quality practices into development cycles, and explore AI-driven testing improvements. This role suits experienced engineers who blend software development rigor with testing expertise and collaborate closely with distributed teams.

Tech stack
C#.NETSeleniumAppiumJava
Rate
$75-85/hr
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Found at a specialist agency · listed 17 October 2026 · InsideJobs links you to the original posting.