Thomas
Schiavone.

Courier sits in San Francisco at 140 2nd Street, a small team punching above its headcount in a category most people only notice when it breaks. Notifications are the software equivalent of a power grid. Invisible when they work. A crisis when they don't. That is exactly the kind of problem Schiavone likes, because the reward for doing it right is silence.

He took the CEO seat at Courier in 2024, and the appointment reads less like a career pivot than a homecoming. Multi-channel messaging, API-first design, bottoms-up adoption where developers find you before sales ever calls — this is the same melody he has been playing since his twenties, just in a new key.

The throughline is a conviction about who software is really for. Schiavone treats developers as the customer, not the cost center. He treats end users as adults who can figure out a good tool without a manual. It sounds obvious. In practice, most enterprise software is built on the opposite assumption.

What he is building at Courier is a wager that the messy sprawl of product communication can be tamed by one opinionated layer. Not a Swiss Army knife for every industry on earth. A sharp tool for the companies that live and die by their product.

Before the iPhone, before the App Store, before any of it was obvious, Schiavone was hunched over a phone squinting at the mobile web through WAP. The year was 2006. The verdict was instant. "I was addicted to my mobile phone, browsing on WAP in 2006," he has said. "I thought, 'This is going to be huge.' And guess what? The iPhone came out."

That instinct for catching a trend a beat early became a pattern. He landed at Twilio as its first product manager when the company was around its fifteenth employee and pulling in twenty-five to thirty thousand dollars of monthly revenue. He calls it his formative experience. It was where he watched, up close, what happens when you hand developers a clean API and step back.

The lesson stuck so hard it became a worldview. Twilio did not win by out-marketing anyone. It won because engineers tried it on a Saturday and shipped it on Monday. Schiavone absorbed that and never let go of it.

From Twilio the resume reads like a tour of the API economy. A stint at AdMob. Chief Operating Officer at EasyPost, wrestling the gnarly logistics of a shipping API. VP of Product at Sift, the machine-learning fraud platform co-founded by the person who would later become his own co-founder. An advisor seat at Netlify, helping a developer darling find its footing.

Each stop was a variation on the same theme: technical products sold to technical people, adopted from the bottom up. By the time he was ready to found his own company, he was not guessing at a thesis. He had spent more than a decade living inside it.

Then came Calixa — his turn to be the one holding the pen.

Calixa was Schiavone's argument with the entire CRM industry, made in software. The complaint was specific. Legacy CRMs try to serve everyone, which means they serve a fast-moving SaaS company about as well as they serve an oil and gas conglomerate. His fix was heresy: build a CRM that openly does not care about most of the market.

"CRMs today have to handle oil and gas companies as well as they handle a SaaS company," he said. "What if we just said, 'Fuck, I don't care about oil and gas.'" The point was focus. An opinionated tool built for product-led software companies, and nobody else.

He bristled at the buzzword that kept getting stapled to the work. "There's no instant PLG button," he said, calling the term overhyped. He preferred "SaaS CRM" — the CRM that is opinionated for software companies.

An early internal tool at Calixa carried the unceremonious nickname "Monkey." Its real significance was what it revealed: developers were signing up before the team had said a single word to them. The bottoms-up motion he had learned at Twilio was reproducing itself in his own company, in real time.

His method for sizing a market was refreshingly free of spreadsheets. "I'm not the type of founder who says, 'Let me do some TAM calculations,'" he said. "I'm just convinced these markets are huge." The conviction came from two trends he saw converging: every company embracing bottoms-up adoption, and the rise of the modern data stack.

Leadership, he admitted, was the part he wrestled with most. "Something I still struggle with is how to let go and let other people make decisions," he said. "The first time you're a manager, it's scary."