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Senior Software Development Engineer In Test information

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$22.2K

$123.9K

$161.4K

How much do senior software development engineer in test jobs pay per year?

As of Jun 18, 2026, the average yearly pay for senior software development engineer in test in California is $123,916.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,100.00 and $141,600.00 per year, depending on experience, location, and employer.

How does a Senior Software Development Engineer In Test typically collaborate with development and product teams to ensure software quality?

As a Senior Software Development Engineer In Test (SDET), you will work closely with both development and product teams throughout the software development lifecycle. This includes participating in design and requirements discussions to identify potential test cases early, contributing to test automation strategies, and providing feedback on testability and quality risks. SDETs often pair with developers to review code, co-create test plans, and triage bugs together, ensuring that testing is fully integrated into the CI/CD pipeline. Effective communication and cross-team collaboration are essential for proactively identifying issues and maintaining high software quality standards.

What is the difference between Senior Software Development Engineer In Test vs Software Development Engineer In Test?

AspectSenior Software Development Engineer In TestSoftware Development Engineer In Test
ExperienceTypically 5+ years in testing and developmentEntry to mid-level, 1-3 years experience
ResponsibilitiesDesigns complex test frameworks, mentors juniors, leads testing initiativesDevelops test cases, automates tests, executes testing tasks
Skills & CertificationsAdvanced coding, automation, testing tools, leadership skillsProgramming, automation, testing tools
Work EnvironmentCollaborates with cross-functional teams, often in Agile settingsWorks closely with developers, focuses on automation and manual testing

In summary, a Senior Software Development Engineer In Test has more experience, leadership responsibilities, and strategic testing roles compared to a Software Development Engineer In Test, who primarily focuses on developing and executing tests.

What are the key skills and qualifications needed to thrive as a Senior Software Development Engineer In Test, and why are they important?

To thrive as a Senior Software Development Engineer In Test, you need advanced programming skills, deep knowledge of software testing methodologies, and a bachelor's degree in computer science or a related field. Expertise with automation frameworks (such as Selenium, Cypress, or Appium), CI/CD tools, and scripting languages is typically required, along with relevant certifications like ISTQB. Strong analytical thinking, problem-solving, and effective communication are crucial soft skills for collaborating with cross-functional teams and driving quality initiatives. These capabilities ensure rigorous test coverage, faster release cycles, and high-quality software products.

What does a Senior Software Development Engineer in Test (SDET) do?

A Senior Software Development Engineer in Test (SDET) is responsible for designing, developing, and maintaining automated test frameworks and tools to ensure the quality and reliability of software products. They work closely with development and QA teams to identify test requirements, create robust test cases, and integrate automated tests into the CI/CD pipeline. In addition to coding and scripting, Senior SDETs mentor junior team members, analyze test results, and help troubleshoot complex issues to continuously improve software quality. Their expertise bridges the gap between development and testing, ensuring both speed and quality in software releases.
What are the most commonly searched types of Software Development Engineer In Test jobs in California? The most popular types of Software Development Engineer In Test jobs in California are:
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Senior Software Development Engineer In Test jobs near you
Senior Software Development Engineer in Test

Senior Software Development Engineer in Test

cosm

Dallas, TX • On-site

$120K - $150K/yr

Other

Posted 26 days ago

Job description

Summary:

The Cosm Engineering team develops technology to deliver best-in-class experiences in our digital and live-streaming products. We are looking for a talented Senior Software Development Engineer in Test to help ensure quality and user experience across various platforms. We expect our engineers to be versatile, display leadership qualities, and be enthusiastic when taking on new problems across the full stack as we continue to push technology forward.

Responsibilities:

  • Architect, build, and maintain scalable automation frameworks for consumer-facing apps, internal tools, and immersive streaming platforms.
  • Develop automated tests for APIs, mobile, web, and emerging immersive applications, emphasizing performance, security, and user experience.
  • Collaborate with product managers and QA teams to prioritize and integrate high-impact tests into development cycles.
  • Lead code reviews on pull requests, mentor peers, and enforce quality standards.
  • Partner cross-functionally with design, product, and engineering teams to identify risks and enhance overall UX.
  • Proactively spot quality issues, optimize testing pipelines, and leverage CI/CD for faster, reliable deliveries.

Experience:

  • Bachelor’s degree in Computer Science, Engineering, or equivalent.
  • 6-8 years of hands-on experience coding and building automation frameworks, ideally in high-traffic digital, streaming, or entertainment environments
  • Strong proficiency in TypeScript, JavaScript, or similar languages for robust test scripting.
  • Proven track record with frameworks like WebdriverIO, Appium, Cypress, or equivalents.
  • Expertise in testing libraries such as Mocha.js, Jest, or similar.
  • Familiarity with cloud testing services like BrowserStack, LambdaTest, or Sauce Labs.
  • Demonstrated experience automating tests for APIs, web, and mobile apps with comprehensive coverage.
  • Proficiency with test management tools like Xray or TestRail.
  • Analytical eye for risks to quality and UX; strong communicator in cross-functional settings; enthusiastic about mentoring and innovation.
  • Knowledge of immersive tech (e.g., VR/AR), streaming protocols, or performance testing in media/entertainment is a huge plus.

The annualized base salary range for this position in California is $120,000- $150,000. The base salary offered will factor in internal equity and may also vary depending on the candidate's geographic region, job-related knowledge, skills, and relevant experience, among other factors.

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