Founding Engineer - Backend & Data Platform ($175,000 - $225,000 + Equity) at Greenline

About this role

Join Greenline, a fast-growing fintech startup, as a Founding Engineer to build the core data platform enabling mortgage lending for self-employed Americans. You'll architect data pipelines, design scalable backend systems, and integrate ML-driven insights to automate complex underwriting processes.

What you'll do

• Design and implement data ingestion pipelines from financial sources like Plaid, IRS, and accounting platforms
• Architect backend systems for asset serving, authentication, and relational data modeling using Postgres and GraphQL
• Productionize ML-driven signals through feature extraction and model integration into core workflows
• Own greenfield data platform development with significant architectural influence
• Build event-driven systems handling complex financial data with auditability and correctness

What they're looking for

• Event-driven data systems design
• Relational database design and Postgres expertise
• API architecture and GraphQL
• ML fundamentals including feature engineering and model evaluation
• Backend system architecture at early-stage startups
• Data pipeline development
• Data correctness and auditability practices

Benefits

• Competitive salary: $175,000 - $225,000
• Aggressive equity package
• Founding team title with high architectural influence
• Flexible locations: San Francisco, Austin, NYC, or Remote
• High-agency startup environment with experienced leadership team
• Direct impact on underserved borrower population