I build products by getting close to the work.

I'm Rareș, an engineer and founder in New York. After studying mechatronics at Waterloo, I spent much of the next decade in the Bay Area, working across Model 3 firmware, payments at Uber, FDA-cleared blood testing, healthcare operations, and AI products. Most recently, I co-founded Contour and built its products through its acquisition by Commure. I'm at my best with customers and operators: understanding what needs to be done, finding the cleanest way to do it, and staying technical enough to ship an answer I'm proud of.

Ship the Ugly Personal Site

Waiting until my personal site was “good enough” meant I never built one. A template I made for a mentee is why I’d now tell you to ship the plain version first.

What I paste into a fresh Claude or Codex session

Behavior rules, a Claude-plus-Codex review loop, a generate-and-cut method, and a rubric for good UI: four short files with one-click copy, so you can skip the token tax of gstack.

A better way to move files over MCP

MCP calls make the model recite the whole payload token by token. A small CLI lets code move it, so it never enters context in the first place. Fewer tokens, less time.

Work

  1. Contour logo
    Company
    Contour
    Role
    Co-Founder & CTO
    Date
    Description
    Co-founded Contour and led engineering through both product chapters, up to the company’s acquisition by Commure.
  2. Assort Health logo
    Company
    Assort Health
    Role
    Founding Engineer
    Date
    Description
    Built backend core and Epic EHR integrations for AI healthcare platform (now valued at $1.2B).
  3. Athelas logo
    Company
    Athelas
    Role
    Sr. Software Engineer
    Date
    Description
    Led development of the first FDA-cleared at-home CBC, plus RPM tools and billing/reconciliation.
  4. Uber logo
    Company
    Uber
    Role
    Software Engineer II
    Date
    Description
    Built real-time fraud detection and payment systems processing millions of transactions daily.
  5. Level Home logo
    Company
    Level Home
    Role
    Firmware Engineer
    Date
    Description
    Achieved 1+ year battery life for smart deadbolt through ultra-low power optimization.
  6. Tesla logo
    Company
    Tesla
    Role
    Systems Integration
    Date
    Description
    Developed firmware for Model 3 security systems. Built testing infrastructure for production ramp.
  7. FleetCarma (Geotab) logo
    Company
    FleetCarma (Geotab)
    Role
    Embedded Developer
    Date
    Description
    Reduced GPS fix time from 27s to <4s for EV fleet telemetry devices.
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