Lead Engineer, Systems Engineer

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Compensation: Competitive salary + early-stage equity

About Cassi

Cassi is building the AI-powered home manager: an intelligent agent that helps homeowners stay ahead of everything their home needs. Today, bills, maintenance, and documents are fragmented across apps and inboxes. Cassi turns that chaos into structured intelligence, which serves as the bedrock for end-to-end workflow automation.

Our mobile-first product acts like a quiet, brilliant chief of staff for your home, anticipating what’s needed, flagging risks, and enabling actions like bill pay or service booking. Every interaction feeds a growing knowledge model that compounds across homes. Think Mint + Notion + an agentic copilot, purpose-built for property.

This is not a GenAI wrapper. We’re pushing the boundaries of agentic infrastructure, building long-term memory and reasoning layers specific to homes, and tying them to real-world systems like bills, service providers, legal records, maintenance, etc. .. showcasing AI that is grounded in real consumer utility, and designed to be used by everyone.

We’re an early-stage team backed by operators who’ve built and sold category-defining companies. We’re in Alpha with a group of homeowners and moving fast toward a public launch. This is a ground-floor opportunity to architect the systems behind a new AI-native category.

The Role

We’re hiring an Engineering Lead to architect and ship the core Cassi experience. This is a hybrid role: part senior IC, part engineering manager. You’ll write code, lead execution, and define technical processes from the ground up. You’ll work directly with the CEO and design/product to bring the vision to life: a GenAI-native interface that ingests unstructured chaos and turns it into structured, actionable control.

We are not looking for a theoretical architect. We are looking for someone who builds fast, ships weekly, leads by example, and installs process and systems that lift team velocity and accountability.

Key Responsibilities

• Write production-grade code alongside a small engineering team, focusing on both backend and mobile
• Own architectural decisions, code quality, and development standards across the stack
• Drive execution across weekly sprints, instilling engineering rhythm, accountability, and review practices
• Define and implement core infrastructure around document parsing, memory systems, async UX, notifications, and agentic workflows
• Partner with product to translate specs into reality and debug product unknowns in real time
• Build the engineering hiring foundation: recruiting, interviewing, and mentoring early engineers

You Are

• A senior IC who has owned end-to-end systems at a startup or high-growth company
• Fluent in modern backend infrastructure (e.g., Python, Node.js, Postgre
  
  SQL, cloud infra) and mobile app development (e.g., React Native)
• Experienced (or deeply curious) in AI infrastructure: prompt engineering, embeddings, memory graphs, retrieval, chaining
• Obsessed with quality, fast execution, and high leverage … your instincts are architectural but your habits are shipping
• Comfortable being the first one in the room and building systems and teams from zero
• Process-minded: you know how to balance speed with reliability, and you’ve run agile or sprint rituals in small teams

What You’ll Get

• A seat at the founding table: ownership, voice, and influence
• Real user feedback weekly from homeowners relying on Cassi
• Opportunity to define the future of AI-native consumer tools
• Mentorship from experienced operators and investors backing Cassi

• Seniority level
  
  Mid-Senior level

• Employment type
  
  Full-time

• Job function
  
  Engineering and Information Technology
• Industries Technology, Information and Internet

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