Staff / Principal Software Engineer [Los Angeles/Bay Area]

The role

You will own the architecture direction for your area, directing a fleet of agents to build and deploy AI systems. You will work across frontier and open-weight models for discovery, prototyping, building, evals, and deployment.

What you will do

• Own the architecture direction for your area
• Decide what gets built, in what order, and why
• Manage release cadence
• Direct a fleet of agents
• Remain accountable for every line that ships
• Set technical direction for product areas
• Ship code every week

Required qualifications

• Held Staff or Principal scope
• Set technical direction across multiple systems or teams
• Depth in digital production (video editing, media processing, or generative media pipelines) or media effectiveness (advertising, media, or performance-data systems)
• Built a platform from zero
• Put AI into production beyond chat using vendor APIs, agents, tool calling, evaluation, permissions, and cost control
• Worked with at least one systems-level language like C, C++, Rust or Zig
• Used Python and TypeScript in production
• Shipped to real customers

Nice to have

• Experience with FFmpeg, CDNs, ingestion or editing tools
• Dealt with model routing at scale
• Spent time inside an adtech company, agency or production studio

Before you apply

• Tell us which area your experience fits best
• Three conversations and a short piece of practical work
• Recruiter screen, then an engineer from the team, then a practical assignment and a walkthrough with the hiring manager

About the company

TubeScience Labs creates trusted, scalable, and self-improving AI systems to power a performance-based paid social creative video company. They are Meta's largest creative partner and AppLovin's #1 creative partner.