Join ZenithAI and be part of a team redefining what is possible in engineering. We are well-funded with the resources of a scale-up and the speed of a startup. As a Principal Security Engineer, you will have real ownership, meaningful impact, and the flexibility to work how you work best.

What You'll Do:
- Design, build, and maintain scalable backend services and APIs
- Lead code reviews and mentor engineers across the team
- Improve system reliability, performance, and observability
- Write clean, well-tested, and well-documented code
- Collaborate with product and design teams to define technical requirements
- Identify and address technical debt to keep the codebase healthy

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

What We Offer:
- Company-wide team retreats twice per year
- Unlimited PTO and company-wide recharge days
- Fully remote — work from anywhere in the world
- Health, dental, and vision insurance (or stipend for international hires)
- Annual learning and development budget ($1,500+)

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.