Dec 18, 2025 · 42m · product-market-fit
He killed a $100K ARR product & pivoted—then raised $375M. | Viraj Parekh, Co-Founder of Astronomer · PMF Show
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Viraj Parekh, Co-Founder of Astronomer, shares how his team pivoted from an early clickstream product to building a $350M+ enterprise platform around Apache Airflow. He breaks down the strategic choices, guerilla sales tactics, pricing models, and crisis management that propelled Astronomer to product-market fit.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Pablo holds 25.6% of the talking time here. How this is scored →
Pablo as informed peer 4.3 Guest teaching 3.2 Guest disagreement 1.1 Pablo pushing back 2.1
speaking balance: gold is Pablo, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 33:38 Challenging the premise of early brand value
Viraj directly pushes back on Pablo's statement that early startups have no brand, arguing founders build their brand through distinctive personal gestures.
Hardest push from Pablo ▶ 6:15 Refusing high-level glossing overPablo stops Viraj from skipping over the startup's origin story, insisting that depth and granular zero-to-one details are the purpose of the interview.
Biggest teaching moment ▶ 25:30 Analytics versus operational value inflectionViraj details how value and pricing dramatically transform when a product shifts from generating dashboard metrics to handling mission-critical, revenue-generating operations.
Pablo holds their own ▶ 23:55 Contextualizing enterprise budget yardsticksPablo demonstrates sharp SaaS expertise by unpacking why founders should measure contract size against engineering headcount costs rather than absolute dollars.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Pablo as informed peer | Guest teaching | Guest disagreement | Pablo pushing back | Why |
|---|---|---|---|---|---|---|
| Navigating Viral Press and Company Culture | 3 | 2 | 1 | 2 | Pablo delicately brings up the viral press incident involving the company's former CEO and Coldplay. Viraj handles the question smoothly, emphasizing internal team unity and customer retention without friction. | |
| Astronomer's Early Clickstream Product | 4 | 3 | 1 | 3 | Pablo pushes Viraj not to gloss over the origin story and questions why they built a competitor in a crowded clickstream analytics space. Viraj explains their initial seasonal business niche and backend architecture. | |
| Uncovering Market Demand for Airflow | 4 | 4 | 1 | 2 | Viraj describes the organic customer pull towards Apache Airflow, educating the host on how code-centric orchestration transformed data engineering workflows. Pablo probes on the specific before-and-after business value. | |
| The Decision to Pivot to Airflow | 5 | 3 | 1 | 3 | Pablo drills into the ARR numbers at the pivot point, noting the psychological difficulty of abandoning an existing revenue stream. Viraj shares the internal decision-making that validated the pivot. | |
| Building a Commercial Open Source Business | 5 | 4 | 1 | 2 | Pablo asks how a company monetizes an open-source tool it does not exclusively own. Viraj illustrates commercial open source through analogies and precedent companies like Databricks and Confluent. | |
| Early Customer Discovery and Pricing Yardsticks | 6 | 3 | 1 | 2 | Pablo and Viraj engage in an insightful discussion on early customer discovery and pricing yardsticks. Pablo demonstrates strong domain expertise regarding enterprise procurement and engineer-salary pricing benchmarks. | |
| Evolving from Analytics to Operational Workloads | 3 | 5 | 1 | 1 | Viraj gives a masterclass on how Astronomer moved from low-stakes analytics workloads to high-stakes operational workflows, shifting their pricing power and enterprise value. | |
| Securing the First Customer and Overcoming Location Bias | 4 | 3 | 1 | 2 | Viraj recounts landing their first customer in Ireland and overcoming the bias against non-Silicon Valley startups. Pablo clarifies the logistical separation of the legacy clickstream business. | |
| Sales Tactics and Creative Guerilla Marketing | 5 | 3 | 3 | 3 | Viraj describes scrappy sales tactics, including buying used books on customer college majors instead of swag. Viraj politely challenges Pablo's premise that early startups possess zero brand equity. | |
| Fundraising, Rapid Growth, and Achieving PMF | 5 | 3 | 1 | 2 | The conversation covers raising seed/Series A rounds and recruiting core open-source contributors. Pablo adds perspective that post-$1M ARR velocity matters far more than time-to-$1M. | |
| Startup Advice and Founder Mindset | 3 | 2 | 0 | 1 | Pablo asks reflective closing questions about managing founder psychology and early-stage advice. Viraj offers encouraging guidance on embracing the inherent difficulty of startup building. |
Statements from this episode (19)
Astronomer lost zero customers and zero employees after CEO viral controversy
“You know, I think the most exciting part for me from all that is throughout all of that, right? We do not lose a single customer or a single employee.”
Astronomer posted its biggest quarter in company history following CEO controversy
“When you look at kind of what we did for the rest of that quarter and coming into the next quarter, not only did we have our biggest quarter in company history after that, we also made major strides from a business perspective in terms of the product and servi…”
Astronomer Originally Launched as a Segment Competitor Before Pivoting to Airflow
“So astronomer focused on the airflow company started in 2018, and it kind of grew out of previously astronomer. The company had started before, and we were focused on something else. We were building a clickstream product. So if you know, like the company segm…”
Astronomer First Used Airflow as Hidden Backend Infrastructure
“The first version we built of that product, we built that backend orchestration piece. We used a cloud native service for that, something called SWF, Simple Workflows. And that was good, but what we found was we needed something a lot more dynamic, and we need…”
Parekh: Prospects Were More Interested in Astronomer's Airflow Backend Than Its Product
“And this funny thing started to happen where we tell customers what our product was powered by, and they'd be more interested in that than the product itself.”
Parekh: Astronomer had $100K to $400K ARR before Airflow pivot
“Somewhere in the hundred to 400 range.”
Parekh: Playing catch-up to Segment left Astronomer no room to innovate
“Segment was very good at what they did. And we were always playing catch up. And when your job is to play catch up, you know, that's not something that makes it feel very sustainable. It doesn't really give you that much room to innovate.”
Parekh: Customer willingness to pay beats market size studies
“Like you could have every internal conversation that you want. You can kind of debate things to no end. You can look at studies about market size and so on and so forth. But when people who are willing to pay say, I will pay you if you can give me an easy butt…”
Parekh: Running open-source software is like adopting a puppy
“Running open source technology is like adopting a puppy. Right. Like it's free to get, but it's a lot of work once you got a puppy. Right. And that's kind of where this idea of commercial open source comes in. It's like doing all of the things that you don't w…”
Parekh: Suppressing confirmation bias in early discovery yields better willingness-to-pay insights
“In the early days, it's really about going into conversations with your biases turned off. It's like, hey, I want to focus on the problem this customer is bringing to me. I don't want to focus on trying to find some sort of Confirmation bias for preconceived i…”
Parekh: Founders need 5 to 20 discovery calls daily to build resilience
“Unfortunately, the only way I found to get myself be able to do it and other founders I've talked to be able to do it is Just to do it nonstop. You really have to get yourself to get like five, 10, 15, 20 calls a day. Most of which you're getting bad news on a…”
Parekh: Anchor enterprise tech pricing against engineer salary multiples
“In the tech landscape, a really good guidance point for that is to do it with a, based on the salary of an engineer, right? You can say, hey, is this going to be worth half an engineer's salary to you? And you kind of put a number on that, or is this going to …”
Airflow shifted from analytics dashboards to mission-critical operational workloads
“In the early days, Airflow was used for very, what I call analytics workloads, as in the sense that it would move data around, and ultimately, the end result would be a number in a dashboard... What ended up happening is Airflow still does those analytics work…”
Parekh: Value pricing shifts from labor cost to business risk
“And in that stage for us, the way you think about price and value is completely different because you're not thinking about, hey, what is the cost of an engineer doing it, right? You're thinking about what is that problem worth to a business and how would a bu…”
Parekh: Non-SF startups face higher traction bar than Silicon Valley peers
“We needed to show traction in a way that was set at a higher bar than if we were based in San Francisco, or if we had had the creator of the open source project on our team.”
Astronomer: Most successful cold email targeted Apache Airflow users directly
“In fact, now that you're saying it, I think our most successful email campaign was the subject client was Don't open this email unless you use Apache Airflow. Like, that was the subject line we used.”
Astronomer gifted used college-major books to sales prospects instead of swag
“Because we didn't have a bunch of astronomer t-shirts we could give them, one of the things we'd do is like, we'd look up who we're visiting, find out what they majored in college, and we'd go to like the used bookstore and get a book about that topic. Because…”
Parekh: Astronomer took over 18 months to reach $1M ARR
“Getting to the first million definitely took over 18 months. After we got to that, it definitely went faster, but it was a slog to get there.”
Parekh: Airflow Logged 300M+ Downloads and 80K+ Company Users Including OpenAI
“Airflow has downloaded over three hundred million times last year, and there's 80,000 plus companies using it. And that includes everyone from Siege State Startups to The biggest banks in the world to companies like OpenAI and Anthropic that are building incre…”