About

I’m Simon Pacheco — a software engineer based in Boston, Massachusetts. I work across iOS, the web, and backend systems, with AI tooling threaded through more of it every month. Most days I’m in Swift or TypeScript; some days I’m in Python, Go, or whatever the problem in front of me wants to be written in.
I’ve been writing software professionally for over a decade. My work has ranged from consumer iOS apps to backend infrastructure to AI tooling that helps small teams move faster than their headcount should allow. I like building real things — products that other people actually use, preferably with a small enough team that one person can hold the whole picture in their head.
What I’m into
Building.Most of my side projects start as “I’d use this” or “this should exist.” Some turn into products. Some stay tools. A few never leave a Friday afternoon. The throwaway ones often teach me the most.
iOS & Swift.I love building software people hold in the palm of their hand. There’s something about an app you can pick up on the train, use for thirty seconds, put back in your pocket — and have it feel obvious, fast, native — that I haven’t found anywhere else in software.
AI tooling. I work in Claude Code most days now. I write about how to use it well — the workflow, the prompting, the parts that change what an individual engineer can ship. The AI moment is real and I think most of the productive uses of it are still being invented.
Web & infrastructure.Next.js, React, Node, Postgres, Docker. The boring stack, used carefully, is still the right answer for almost everything that isn’t a mobile app or an ML pipeline.
Aviation. I fly small planes around New England — weekend hops out of the general-aviation fields north and west of Boston, the occasional trip up the coast, the occasional sit-in-the-pattern hour just to stay current. I read incident reports for fun and I have opinions about seat maps.
Travel.Places I keep going back to, places I’ve only been to once, and the unglamorous logistics of doing it without making it a whole production.

Boston
I live in the Boston area. The MBTA gets a lot of grief and most of it is earned, but it’s still the city I’d rather walk in than drive in. I run along the Charles when the weather cooperates and complain about potholes when it doesn’t.
This site
I write here when I have something to say that’s longer than a tweet and shorter than a book. The categories are tech, aviation, travel, and projects— though they overlap more than they don’t.
Read the latest posts or check what I work in.