Horizon Stack is a fast-growing technology company building engineering tools for modern teams. We are fully distributed and passionate about solving hard problems at scale. As a Principal Software Engineer, you will play a key role in shaping our culture from anywhere in the world.

What You'll Do:
- Build and maintain CI/CD pipelines and deployment infrastructure
- Collaborate with product and design teams to define technical requirements
- Identify and address technical debt to keep the codebase healthy
- Lead code reviews and mentor engineers across the team
- Write clean, well-tested, and well-documented code
- Participate in on-call rotations and lead incident response efforts
- Design, build, and maintain scalable backend services and APIs

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
- Strong external presence through publications, talks, or open source

What We Offer:
- Annual learning and development budget ($1,500+)
- Health, dental, and vision insurance (or stipend for international hires)
- Competitive salary with equity or performance bonuses
- Unlimited PTO and company-wide recharge days
- 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.