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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Design Tools2025

Canvas

A collaborative whiteboard tool with real-time multiplayer, infinite canvas, and an extensible plugin architecture. Built to be fast at any zoom level.

TypeScriptReactWebSocketsCanvas API
Infrastructure2025

Dispatch

A lightweight real-time event dispatching service built on Go and Redis Streams. Handles 50k+ events/sec with sub-10ms p99 latency.

GoRedisAWSDistributed Systems
Developer Tools2024

Lumen

An open-source CLI tool for automated performance regression detection. Integrates with CI pipelines to flag threshold violations before they ship.

Node.jsCLIOSSDevTools
Analytics2024

Meridian

A developer analytics platform that surfaces bottlenecks in CI/CD pipelines. Tracks build times, test suite health, and deployment frequency across multiple repos.

TypeScriptNode.jsPostgreSQLReactGitHub API
// 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