Backend Engineer - Performance and Scale

At Homekey, we are changing how homes are bought, sold, and lived in. 

We are fundamentally rewiring the economics of a trillion-dollar market using AI agents. To achieve this, we are building an AI-native platform that encompasses the full lifecycle of a real estate transaction: property valuation, auction and matching, conversational search, workflow management, documentation, and a voice-based copilot.

Check out our team at Homekey here: homekey.casa/meet-our-team

The role:

We’re looking for a backend engineer with deep expertise in system architecture and a proven track record of solving complex scaling bottlenecks.

In this role, you will

• Architect for scale: You will optimize latency, throughput, and inefficiencies across our data layer and backend services.
• Build the foundation: You will architect and implement the robust infrastructure required to power high-stakes transactions and multi-agent workflows.
• Drive technical architecture: You will influence the product roadmap and help define our technical vision as we scale.
• Ship career-defining work: You will build foundational systems from scratch, leaving your fingerprints on a product that fundamentally changes a massive industry.

Components of our tech stack: 

Flask, Redis, MongoDB, React, LangChain, MCP, A2A Protocol, AWS

Who you are:

• You have a Bachelor's degree in Computer Science or a related field. 
• You have battle scars from scaling: You have experienced architectural bottlenecks firsthand as a company grows, and you have successfully engineered the solutions to overcome them.
• You have strong opinions about system design, database architecture, and performance tradeoffs, and can defend them.
• You are an expert in the data layer: You have deep experience building distributed systems and optimizing databases for high-frequency operations.
• You are located within a commutable distance to Palo Alto, CA.

If you’re excited about shaping the future of real estate, we’d love to chat.