Mac Tichner / macbuildsthings.dev

I build the operating system for modern engineering.

Teams, tools, rituals, taste. The parts that make shipping repeatable.

Meet with me ->
SalesloftMedidataPerksyBar & Club StatsTradeweb

Things I've built

01 / 2009-2012

Systems Under Pressure

Schonfeld Securities / Tradeweb

Low-latency markets, legacy code, and the habit of leaving things better.

Before the founder years, I learned how to make progress inside systems that were already moving.

Low-latency trading, legacy refactors, production health checks, release trains, undocumented components - not glamorous work, but the kind that teaches respect for reality.

The pattern stuck: understand the system, find the leverage point, make the next change easier for the next person.

02 / 2012-2017

Three Bets From Zero

3x Founder CTO

Three founder chapters. Three markets. One acquired.

I became a founder before I had much romance about what founders were supposed to be.

Bar & Club Stats, AskDiagnostic, and Office Dispensing Solutions were different markets with the same lesson underneath: the product is never just the software.

You build the thing, then the operating model around the thing. The culture shows up early. So do the cracks.

03 / 2017-2020

From Builder to Multiplier

Perksy, SVP Engineering

The work got bigger than what I could build with my own hands.

At Perksy, the work got bigger than what I could build myself.

The job became judgment: which systems deserved polish, which rituals created speed, which decisions needed to be owned in public.

That is where I started caring less about individual heroics and more about the conditions that make high-agency people inevitable.

04 / 2020-2024

Architecture at Human Scale

Medidata Solutions, Principal Software Architect

Scale does not excuse speed. It demands more craft.

Enterprise software punishes shortcuts slowly, then all at once.

At Medidata, architecture meant more than clean diagrams. It meant making tradeoffs visible across teams, timelines, and constraints that were bigger than any one codebase.

The best architecture work changed how people made decisions when I was not in the room.

05 / 2024-2025

The AI Turn

Salesloft, Engineering Lead

When the tools changed, the engineering system had to change too.

AI did not make engineering easier. It made the old bottlenecks obvious.

The teams that move fastest are not the teams with the most tools. They are the teams willing to change their habits, review loops, taste, and expectations around what one engineer can own.

That is the work now: not prompt tricks, but operating model change.

06 / 2025-present

The Operating System

Something new and exciting

AI-native engineering is an operating model, not a tool rollout.

I am spending this chapter with the teams, tools, and workflows that make software feel different.

The interesting part is not that AI writes code. The interesting part is what a team becomes when every engineer gets more leverage and the culture knows how to absorb it.

The workflow is the product. Culture decides what tools can do. Shipping keeps the story honest.

Operating notes

The stuff I keep relearning.

Small teams need sharper loops.

Most teams do not need more ceremony. They need clearer ownership, faster feedback, and fewer places for decisions to hide.

AI changes review before it changes code.

The teams that benefit first are the ones willing to raise the bar on taste, context, verification, and what one person can responsibly own.

Architecture is a social system.

The best technical decisions keep working after the meeting ends, because people understand the tradeoff and can keep making the next one.

Three ways in

Set you up with AI.

Free, 30 minutes.

There is a whole tier of tooling above ChatGPT - Cursor, Claude Code, the agentic stuff - and most people have not crossed into it yet. If you want me to walk you through what I actually use and get you running, ping me. It is just fun to share.

Podcasts.

I love talking tech.

If you run one and want a guest - engineering leadership, AI-native workflows, the founder chapters, shipping at scale - let's do it. Ping me with your show.

Meet with me.

My calendar, 30 min, anything.

Advice, intros, what would you do in my seat, or just to say hi.

Meet with me ->

The workflow is the product.

Culture decides what tools can do.

Shipping keeps the story honest.