Cosm · 19 hours ago
Senior Software Development Engineer in Test
Los Angeles, CA
Full-time
Onsite
Mid, Senior Level
$120K/yr - $150K/yr
6+ years expCosm is a global technology company that brings experiences to life in immersive environments. The Senior Software Development Engineer in Test will ensure quality and user experience across various platforms, developing automation frameworks and collaborating with cross-functional teams.
ContentInformation TechnologyMedia and EntertainmentSoftwareVideo
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
Qualification
Required
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
Preferred
Knowledge of immersive tech (e.g., VR/AR), streaming protocols, or performance testing in media/entertainment is a huge plus
Company
Cosm
Cosm is a media and entertainment company that builds end-to-end experience solutions for the technology and entertainment sectors.
501-1000 employees
H1B Sponsorship
Cosm has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (3)
2023 (1)
2022 (1)
2021 (3)
Funding
Current Stage
Late StageTotal Funding
$250M2024-07-31Series Unknown· $250M
Leadership Team
Jeb Terry
President/Co-founder and CEO
Neil S. Carty
Vice President, Head of Brand & Community
Recent News
Sports Business Journal
2026-01-23
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2026-01-22
Company data provided by crunchbase