Lead Engineer

Cassi; New York (NY); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Ownership and influence

Weekly user feedback

Mentorship from experienced operators

Job summary

Cassi is seeking an Engineering Lead to shape their AI-powered home management product. This hybrid role involves coding and leading a small team to create innovative solutions, while directly collaborating with the CEO. Join an early-stage company making significant changes in home tech with real user feedback and opportunities for influence.

Qualifications

• A senior IC who has owned end-to-end systems at a startup or high-growth company.
• Fluent in Python, Node.js, PostgreSQL, cloud infrastructure, and React Native.
• Experienced in prompt engineering and memory systems.

Responsibilities

• Write production-grade code alongside a small engineering team.
• Own architectural decisions and code quality across the stack.
• Define and implement core infrastructure around document parsing and workflows.

Skills

Fluent in modern backend infrastructure

Mobile app development

AI infrastructure

Quality and execution

Job description

Get AI-powered advice on this job and more exclusive features.

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, PostgreSQL, 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

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Technology, Information and Internet

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