AI Engineer (Superhuman Mail) - US

About this role

Build the AI platform and agentic experiences behind Superhuman Mail, spanning tool integrations, personalization, and model selection. Develop production AI features and evaluation systems that help teams ship reliable AI capabilities.

About the company

Superhuman is an email productivity tool designed to enhance users' efficiency and workflow. The company serves professionals looking to optimize their email management through innovative features and streamlined processes.

The team

Superhuman Mail team

Stack

What you'll do

• Build and evolve the Mail MCP layer, tools, and agent standards
• Design and ship agentic workflows and personalization features at scale
• Build evaluation systems to measure quality and catch regressions
• Select and explore models for different tasks
• Provide AI building blocks for teams across Superhuman
• For the ML-leaning variant, shape modeling approaches and data generation

What we're looking for

• 4–6+ years of software engineering experience with a strong backend foundation
• Production experience building and shipping LLM-powered features, such as agents or agentic loops
• Experience building evaluations to measure and improve LLM quality
• Working knowledge of ML concepts and model tradeoffs
• Comfort with ambiguity and changing direction
• Strong ownership, bias to action, and growth mindset

Nice to have

• Go experience
• Familiarity with MCP servers or tools

Benefits

• Equity
• 20 days of paid time off, 12 paid holidays, two floating holidays, and flexible sick time
• Paid parental leave
• 401(k) and RRSP matching
• Health, dental, vision, mental health, and fertility benefits
• Stipends for caregiving, pet care, wellness, and home office
• Annual professional development budget