Principal Engineer (AI)

Location: United States; fully remote, working Eastern Time (EST) hours

Base salary: $235,000–$285,000 plus equity, depending on level and experience.

Company

Build an autonomous AI marketing platform for ecommerce brands that identifies revenue opportunities, creates campaigns, and runs them after brand approval.

What you will do

• Design, build, and operate reliable systems for sending high volumes of email across multiple brands.
• Develop AI agents that plan, create, and run campaigns from prototype through production.
• Own systems throughout their lifecycle, including production health and reliability.
• Break ambiguous problems into small, shippable steps and use implementation to validate the next direction.
• Collaborate with non-engineering teammates and brands, explaining technical trade-offs clearly.
• Review code, share knowledge, and improve engineering practices and systems.

Requirements

• Experience building distributed systems that handle high throughput, partial failures, retries, and recovery.
• Ability to understand system failure modes and improve existing code and infrastructure.
• Ability to make practical trade-offs, break down complex problems, and choose appropriately sized solutions.
• Clear communication with both engineers and non-engineers.
• Interest in deep technical discussions, continuous growth, and helping other engineers level up.
• Curiosity about the business domain and customer problems, not only the code.
• Willingness to design solutions, understand AI-assisted code, and own the resulting systems.

Nice to have

• Startup experience and comfort with the pace and breadth of startup work.
• Experience with email or marketing technology, including deliverability, sending infrastructure, or campaign tooling.
• Deep ecommerce knowledge; Shopify experience is an additional plus.
• Experience developing data pipelines and using ML.
• Experience with a modern technology stack and willingness to learn; the primary stack includes TypeScript, Docker, AWS, and Mastra for agentic flows.

Culture & Benefits

• Fully remote work with required Eastern Time (EST) working hours.
• Full-time role reporting to the CTO and working directly with a small, hands-on engineering team.
• AI-assisted development with human ownership of solution design, code understanding, and results.
• Sustainable pace, low-ego collaboration, and emphasis on clear technical discussions and continuous improvement.
• Base salary of $235,000–$285,000 plus equity, depending on level and experience.