Software Engineer

Jason Lima.

I build software that's precise, performant, and actually pleasant to use — from distributed back-ends to polished product interfaces.

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// 01 — selected work

Selected Work

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Education2026

Design Thinking Course

An interactive, self-paced course through the Stanford d.school × IDEO design thinking framework. Six phases, 36 exercises, 15+ frameworks — built to help founders and builders validate ideas with evidence, not assumption.

DesignEducationInteractiveWeb
Mobile App2026

Teaser

The curriculum architect for fitness professionals. Build exercise libraries, design structured workouts, and manage class schedules — all from one command center built for instructors who take their craft seriously.

React NativeMobileSaaSiOSAndroid
AI / SaaS2025

Idea Mill

AI-powered business opportunity detection from real-time news. Paste any article and get structured market analysis, identified problems, and validated business ideas — instantly.

AISaaSNext.jsWeb App
Mobile App2025

Project Kinesis

A mobile experiment on psychic intuition. Can humans train themselves to predict Zener cards beyond chance? A clean, minimal app that tracks your accuracy over time and lets you find out.

React NativeMobileiOSAndroidExperiment
// 02 — writing

From the Blog

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Feb 10, 20266 min read
engineeringarchitecturesystems

The Hidden Cost of 'Simple' Architecture Decisions

Every architecture decision you make in the first six months will still be there in year three. Here's how to think about the ones that compound.

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Jan 22, 20268 min read
engineeringdatabaseperformance

The Database Is Not Your Enemy

Most performance problems I've debugged trace back to application code — not the database. Here's how to stop blaming Postgres and start reading query plans.

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Jan 22, 20264 min read
craftreadabilityengineering

On Writing Code That Explains Itself

Self-documenting code is not about avoiding comments — it's about making the code itself tell the story clearly enough that comments become optional.

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// 03 — about

Engineer by trade, builder by instinct.

Background in CS and Business Information Systems. I ship things that work — APIs, platforms, product features — and care about the craft behind them: clean architecture, readable code, systems that don't fall apart under pressure.

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5+Years shipping
20+Projects built
∞Still learning