At Helios Dev, we are reimagining how teams approach data. Our remote-first culture lets talented people do their best work without the limits of location. We are looking for a Principal AI Engineer who shares our values and is excited to grow with us.

What You'll Do:
- Develop ML models and deploy them to production environments
- Drive experimentation frameworks and A/B testing infrastructure
- Design and optimize data warehouse schemas for performance
- Build and maintain robust data pipelines and ETL workflows
- Partner with engineering to integrate data products into the platform
- Collaborate with analysts and engineers to define data models

What We're Looking For:
- Strong external presence through publications, talks, or open source
- Experience shaping long-term technical vision and strategy
- Exceptional ability to communicate complex ideas to all audiences
- 10+ years of deep expertise in your domain
- Demonstrated impact at the company or industry level

What We Offer:
- Unlimited PTO and company-wide recharge days
- Parental leave and family-friendly policies
- Company-wide team retreats twice per year
- Annual learning and development budget ($1,500+)
- Flexible hours — we trust you to manage your time

To apply, send your resume and a short note about why you are excited about this role. We review every application and respond within 5 business days.