Your CharterBuild platform APIs for high-quality training data for our new world model. This will involve APIs for data validation, auto-captioning/annotation, and validation. You'll operate at high scale, support a wide variety of developers, and work closely with our internal World Model team to pretrain a new world model. You will also find opportunities to integrate AI in other systems elsewhere in the stack.
Key Outcomes- Design, build, and ship production features for AI world models, from data collection through inference
- Build rigorous evaluation, data pipelines, and captioning APIs tightly integrated into simulators and robot hardware
- Optimize systems for latency, cost, and quality
- Work closely with world model researchers, product engineers, and customers to build systems that are reliable and easy to use
- Stay current with new developments in AI and bring recommendations to the platform and research teams.
Key Competencies- Deep expertise building developer tooling, simulation platforms, or game engine infrastructure.
- Strong systems thinking with experience designing scalable content pipelines and engineering workflows.
- Experience creating easy to use tools that empowers developers, designers, or technical artists.
- Excellent software engineering skills with a focus on performance, maintainability, and automation.
- Comfortable driving technical direction across multidisciplinary teams in a fast-moving startup environment.
Minimum Requirements- 5+ years of software engineering experience, with a meaningful portion spent building and shipping ML- or AI-powered systems in production.
- Strong programming skills in Python and JavaScript/TypeScript and proved experience building expandable, testable, and reliable software.
- Hands-on experience with modern AI/ML, AI frameworks, and cloud deployment
- Clear communication and collaboration to lead projects independently
Preferred Skills- Experience with shipping AI/ML systems at high scale.
- Contributions to open-source AI/ML projects or publications
- Domain experience in robotics
What does a successful 1X Team Member look like:Team members at 1X who thrive here are builders. They move fast, own their work completely, and treat time like it's the one thing you can't get back - because it is. They say what they mean, finish what they start, and hold themselves to a standard before anyone has to ask. We push each other to be better, and we do it with honesty and respect.
Benefits- Comprehensive medical, dental, and vision coverage
- Generous paid time off, company holidays, and parental leave
- 401(k) plan with company match (100% on the first 3% of contributions, 50% on the next 2%)
- Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA) options
- Commuter benefits (transit and parking)
- Short-term and long-term disability, and life insurance
- Employee Assistance Program (EAP) for mental health, financial, and personal support
- Onsite snacks and catered lunches
