Job Url: https://wellfound.com/jobs/3742669-founding-software-engineer-head-of-brokerage-engineering Job Description: Kupa.ai Actively Hiring AI native, retail first, global investing super app Top 1% of responders Responds within a day Save Apply Now Founding Software Engineer / Head of Brokerage Engineering $60k – $80k • 1.0% – 2.0% | Remote ( Everywhere )  •  New York City +1 |5 years of exp |Full Time Posted: yesterday• Recruiter recently active Job Location New York City •  Seoul Remote Work Policy Onsite or remote Hires remotely in Everywhere Visa Sponsorship Not Available Relocation Not Allowed Skills Python C++ Financial Services Stock Market Github Brokerage About the job Location: NYC, Seoul, or Remote (overlap with US & Asia) Stage: Pre-scale, founder-level Comp: Cash-light, equity-heavy We’re building an AI-native, retail-first global investing super app — starting with brokerage and expanding into copy trading, prediction markets, and eventually hedge-fund-like access for retail. This is a core founding role. You will own the technical backbone of what could become the next Robinhood. What You’ll Do Architect and build the core brokerage platform end-to-end (front, middle, back office) Design and implement order management systems (OMS) and execution workflows Build and scale real-time market data infrastructure Work directly with founders on abstract ideas and turn them into shippable, regulator-safe systems Lead and mentor a small, elite engineering team Make foundational technical decisions that will last for years What We’re Looking For Deep expertise in financial markets (at least one: stocks, bonds, options, commodities) Strong understanding of OMS, clearing, settlement, custody, and broker-dealer architecture Solid knowledge of stock exchanges, market structure, and low-latency data systems Prior experience leading a small group of engineers Proven ability to ship fast and build from ambiguity to detail Extreme ownership mentality and ambition to build a world-class financial platform Why This Role True founding-engineer ownership Massive equity upside Build the technical core of a global financial institution from day one