Roman Herrera
Senior Full‑Stack Engineer — React | Data Pipelines
About
Full‑stack engineer specializing in React/Typescript (8 yrs) & Python‑driven data pipelines. Co‑led Deepblocks’ AI‑powered real‑estate platforms that cut city‑wide zoning analysis and scanning from 6–8 weeks to less than 2 hours and secured a $540 K enterprise pilot. 2,178 GitHub contributions in the last 12 months underscore a daily shipping mindset. Trusted strategic partner to CEO & CRO—directly influenced $4.3 M in seed funding decisions.
Core Skills
Professional Experience
- Co-developed Python + Supabase pipeline that processes 497,000 parcels to ≈4,000 AI‑ranked leads in less than 2 hours; runs daily market checks & weekly zoning diff jobs. Data feeds a Next.js platform where users refine leads in real time, driving a $540 K enterprise pilot, architected to scale across 4,000+ zip codes in the next 12 months.
- Co‑led zoning ETL with PostGIS, digitising 250 cities; slashed analyst effort from 26 months to ≈5 minutes and enabled instant geospatial filters in UI.
- Partnered with CEO/CRO on pricing, investor decks, and product roadmap; tech insights helped raise $4.3 M to date.
- Mentored four engineers; reviewed ≈180 PRs/yr with < 2% rollback rate. Made 2,178 GitHub contributions across 10 private Typescript & Python repos (’24‑’25).
- Co‑created Deepblocks Pro: React (Webpack) + custom WebGL 3D modeller letting developers adjust floor heights, setbacks, and FAR live in browser.
- Co-led development of the Financial Model of Deepblocks PRO, a tool that allows users to model and forecast the financial viability of a real estate development project.
- Built multi‑tenant subscription engine that grew platform to 160 customers across 200 cities, reaching $290K ARR in 2020.
- Co‑developed ChatDB, a chat‑based interface for querying and visualising market and demographic data at a national level.
- Co‑engineered map‑rendering to TileServer‑GL (vs. Mapbox REST); cut geo‑tile load time by 20% and halved API costs.
- Developed React dashboard optimising import/export routes; tech led to five‑figure acquisition within 18 months.
Certifications
XFM110 - Technical Fundamentals of Generative AI
Stanford - Feb 2025
Credential ID 0x7332eA1229c11C627C10eB24c1A6F77BceD1D5c1
Gen AI 360 Foundational Model Certification
Activeloop + Intel - Jul 2023
Credential ID fb9rlebhi8
Education
JAE Higher Polytechnic Institute
Recent Projects
AIM Engine
A platform to deliver off-market leads for commercial and residential real estate.
Deepblocks Pro
A platform that provides a comprehensive market overview for real estate development planning across 200+ cities.
ChatDB
A chat interface that provides on-demand graphs, ranking tables, and maps using historical data for market selection decisions.
Cryptongo
An engaging educational game designed to teach you about cryptocurrencies and blockchain technology.