Ackshaey Singh

Founder · Growth Engineering Lead at Opendoor

San Francisco, California

I have founded two profitable companies. Founding teaches what a large company cannot: when you own the P&L, every engineering decision is a distribution decision. I think in funnels, feedback loops, and compounding systems, and I write here about how those systems get built.

Today I lead growth engineering at Opendoor: conversion optimization, organic and SEO/AEO inbound, lifecycle, martech, and AI-driven experimentation across the funnel. Increasingly that means designing AI systems and agents that accelerate entire teams, turning manual growth and engineering work into compounding, automated loops.

For 15+ years I have built the systems that move acquisition, monetization, and retention, including ad-serving and monetization infrastructure at Twitter, and Opendoor's first customer data, experimentation, and attribution platforms standing behind $200M+ in annual paid marketing.

Focus areas

Growth EngineeringAd-Tech & Ad MonetizationMarTech, CDPs & AttributionExperimentation (A/B testing, multi-armed bandits)Performance & Lifecycle MarketingSEO / AEOAI Agents & LLM SystemsDistributed Systems & Backend

Selected experience

Opendoor
2025-present
Growth Engineering Lead
Leads growth engineering: conversion optimization, organic inbound, SEO/AEO, lifecycle, martech, and AI-driven experimentation across the funnel. Previously Staff Engineer and Engineering Manager (2021-2023), architecting Opendoor's first CDP, experimentation, and attribution platform, and re-architecting the marketing instrumentation behind $200M+ in annual paid spend.
Firecode
2023-2025
Co-Founder & CEO
Coding interview prep - done right. Grew to 50,000+ engineers via product led growth and organic distribution. Profitable.
Designer Discount Club
2023-2025
Co-Founder & CTO
AI and agents first from the start - never pay retail for furniture again with Designer Discount Club. Over $5M in sales. Profitable.
Twitter
2016-2020
Tech Lead, Ads
Built ad-serving and monetization infrastructure, including mobile app promotion, brand and live-stream ads, and Promoted Trends, and scaled the DMs backend to hundreds of millions of conversations.
Oracle
2013-2016
Senior Software Engineer
Cloud infrastructure, real-time team collaboration and project management applications.

Building

Firecode

Co-Founder & CEO

Coding-interview prep grown to 50,000+ engineers through PLG and organic distribution. Profitable.

Designer Discount Club

Co-Founder & CTO

AI-first commerce: members-only trade discounts on premium furniture brands. Built from zero. Profitable.

Education · Georgia Institute of Technology, B.S. Computer Engineering