Machine Learning Engineer

Responsibilities

• Own the design, implementation, and evolution of core pricing services
• Design data models and write high-performance SQL over large PostgreSQL datasets
• Architect and improve APIs and integrations with Opendoor’s core marketplace platform
• Partner with data science to productionize pricing models and build robust model-serving pipelines
• Drive reliability, latency, and scalability improvements across pricing systems
• Lead technical design reviews and mentor other engineers to grow team capabilities

Requirements

• 5+ years of professional backend software engineering experience
• Significant experience building and operating production systems in Go or Python
• Deep proficiency with SQL and relational databases (PostgreSQL preferred)
• Strong track record designing, building, and evolving APIs in a microservices environment
• Experience with distributed systems concepts such as scalability, consistency, and resiliency
• Ability to communicate complex technical decisions clearly to both technical and non-technical stakeholders

Preferred Qualifications

• Experience with Kafka or similar event-streaming technologies
• Experience using AI-assisted development tools (e.g., Claude Code, Cursor AI, GitHub Copilot)
• Experience with Redis or other caching and storage optimization technologies
• Experience with gRPC and service-to-service communication patterns at scale
• Prior experience in pricing, marketplaces, or other data-intensive domains

About the Company

Opendoor is building the modern system of homeownership, giving people the freedom to buy and sell homes on their own terms. Our mission is to tilt the world in favor of homeowners by providing an end-to-end online experience that simplifies the real estate marketplace.