Senior Software Development Engineer in Test

Senior Software Development Engineer in Test Job Description

Posted Thursday, January 22, 2026 at 7:00 AM

Cosm is a global technology company that brings experiences to life in immersive environments. We help our partners create spaces and content that blur the lines of real and virtual across three primary markets:
Sports and Entertainment, Science and Education, and Parks and Attractions. Cosm was born from the fusion of some of the greatest innovators in the history of technology. Evans & Sutherland, Spitz, Inc., and Cosm Immersive combined forces to power the immersive experiences of the future as Cosm. Innovation is in our DNA.

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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
• Proven track record with frameworks like Webdriver
  
  IO, Appium, Cypress, or equivalents.
• Expertise in testing libraries such as Mocha.js, Jest, or similar.
• Demonstrated experience automating tests for APIs, web, and mobile apps with comprehensive coverage.
• Proficiency with test management tools like Xray or Test Rail.
• 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.

All applicants must be at least 18 years of age at the time of employment. This requirement is in accordance with applicable federal, state, and local labor laws. Cosm is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.