Software Development Engineer, OpenX

• We’re seeking a driven and experienced Software Development Engineer in Test (SDET) with strong full-stack testing expertise to help launch a new product within our platform
• Open-minded – Welcomes feedback, learns from failure, and adapts quickly to change
• Proactive – Takes initiative to identify problems and drive thoughtful, effective solutions
• Self-motivated & Organized – Manages priorities independently and follows through with clarity and accountability
• 5+ years of experience in software test automation, with a strong track record of building and maintaining scalable test frameworks for backend APIs and user-facing applications
• Proficiency in Python and JavaScript/TypeScript, with the ability to write clean, modular, and testable code
• Hands-on experience with CI/CD tools such as Google Cloud Build, Spinnaker, or equivalent, including maintaining and improving test pipelines
• Deep understanding of modern testing strategies, including integration, end-to-end, and regression testing in distributed systems
• Strong debugging and root cause analysis skills, with the ability to triage and resolve issues across complex service and interface boundaries
• Hands-on experience with modern test frameworks such as pytest, Cypress, Playwright, or Go-based tools
• Familiarity with TestOps and DevOps practices, including test observability, parallel execution, and test data strategy
• Excellent collaboration and communication skills, with a focus on engineering excellence and continuous improvement

Desirable

• You’ll join a talented, remote-first US team and play a key role in delivering self-service tools that simplify and automate complex workflows for media activation
• Our team is responsible for delivering a new product within OpenX’s next-generation platform to help users plan, manage, and optimize campaign outcomes more effectively
• We focus on building scalable APIs and intuitive interfaces that give users access to our rapidly growing suite of AI-driven decisioning and optimization tools
• Build and maintain scalable test automation frameworks that ensure reliability across APIs and user interfaces in a 0→1 product environment
• Develop comprehensive automation strategies to validate AI-driven media activation
• Own end-to-end validation for key features, driving test strategy, implementation, execution, and deployment readiness
• Work closely with backend, frontend, and data science teams to align on testability, coverage gaps, and quality goals throughout the development cycle
• Investigate failures, perform root cause analysis, and continuously improve coverage, test data strategies, and test suite performance
• Promote engineering excellence through constructive code reviews, mentoring, and driving improvements in code quality, architecture, and platform best practices