From environments to custom evaluations, we partner with over 90% of leading AI labs in the US and the innovators defining the next frontier of AI. Backed by Kleiner Perkins, a16z and SoftBank VF.
About the role
Labelbox is the RL data factory for advancing frontier agent capabilities. We build the data, evaluations, and infrastructure that frontier labs use to train and judge their agents. We're looking for talented, experienced engineers to join us. The bar is high: engineers who have strong judgment and set technical direction, quickly build prototypes that scale into the reliable systems, and are at the frontier of agent-first engineering practices and innovating to accelerate the speed of the business.
What they're looking for
- 4+ year track record of shipping systems customers and other engineers rely on
- You build full stack prototypes fast and they hold up. The v1 you ship becomes the foundation the rest of the team builds on
- Strong system and API design judgement
- Hard architecture and product calls land with you. You make them, defend them under pressure, and update fast when someone else is right
- You ship production code with coding agents daily. You know where they break and what it takes to make them reliable to further accelerate the team's velocity
- You set direction by being the example. Other engineers reach for your designs and your code as the reference
More about this role
At Labelbox, we're building the critical infrastructure that powers breakthrough AI models at leading research labs and enterprises. Since 2018, we've been pioneering data-centric approaches that are fundamental to AI development, and our work becomes even more essential as AI capabilities expand exponentially.
We're the only company offering three integrated solutions for frontier AI development:
- Enterprise Platform & Tools : Advanced annotation tools, workflow automation, and quality control systems that enable teams to produce high-quality training data at scale
- Frontier Data Labeling Service : Specialized data labeling through Alignerr, leveraging subject matter experts for next-generation AI models
- Expert Marketplace : Connecting AI teams with highly skilled annotators and domain experts for flexible scaling
- High-Impact Environment : We operate like an early-stage startup, focusing on impact over process. You'll take on expanded responsibilities quickly, with career growth directly tied to your contributions.
- Technical Excellence : Work at the cutting edge of AI development, collaborating with industry leaders and shaping the future of artificial intelligence.
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