Grind culture is bad management, but startups reject 9-5 workers

Key Takeaways

• Grind culture often masks poor planning, unclear priorities, and hiring mistakes rather than genuine necessity
• 51% of failed startups cite founder burnout as a major contributing factor
• The sustainable alternative isn't fewer hours but relentless focus with proper rest cycles

Gigaton, an AI startup building emissions-reduction systems for cement plants, just admitted something unusual: grind culture is a management failure. Then, in the same breath, they explained why they still reject candidates who want a normal 9-5 job. This contradiction sits at the heart of a debate that's splitting the startup world.

The argument started when Nico Laqua, founder of Corgi Insurance, declared in an interview: "If you're not working seven days per week, you'll lose." Karri Saarinen, founder of Linear, fired back on X with the opposite view: "Grinding is never good for any creative problem. Mastery is achieving the outcome with the least necessary effort."

Two founders. Two philosophies. One uncomfortable question: Which is right?

Why does a climate startup reject 9-5 candidates?

Gigaton's leadership, CEO Josh Vernon and CTO Bob Gregory, wrote candidly about their internal debate. The company builds AI control systems to optimize cement production, an industry responsible for roughly 8% of global CO₂ emissions. A single successful deployment can save kilotonnes of carbon annually.

The stakes, they argue, justify intensity. Like many startups, Gigaton is "default dead." Without ambitious growth to attract more capital, the mission dies. Climate doesn't wait for comfortable schedules.

But here's where it gets interesting. Vernon and Gregory openly admit their current intensity isn't purely mission-driven. It's partly self-inflicted damage. They failed to define their ideal customer profile early. They worked with anyone who'd pay. They weren't firm enough about who their product was actually for.

“If we had been smart enough and ruthless enough as the leaders of Gigaton, we could have set the business on the right strategic path earlier. Leaders have to own that before asking the organisation to raise the level of intensity.”

— Josh Vernon and Bob Gregory, Gigaton

This is a rare admission. Most founders who demand long hours frame it as unavoidable. Gigaton's leadership says: some of this is our fault, and we're asking people to pay for our mistakes. That honesty matters.

What does sustainable intensity actually look like?

Gigaton's solution isn't weekend mandates. Instead of asking for more hours, they cut incoming revenue by 50% to focus on fewer, higher-value outcomes. The entire company aligned around two objectives for the year: make the product work repeatedly, and prepare for scale.

Gregory, the CTO, often works evenings and builds side projects on weekends. But call him at 11am on a Wednesday and he might be walking his dog. The requirement isn't "work every hour." It's "bring ownership that matches the mission, in a way you can personally sustain."

Gregory spent 25 years in "extreme programming" culture, which prioritizes sustainable pace through fast feedback loops, technical excellence, and ruthless prioritization. Done right, it doesn't feel fast. Each step is mindful. But progress is relentless.

The goal at Gigaton: work hard enough to feel exhausted by Friday. Then rest, reset, and repeat. Week after week. Like clockwork.

The data behind the burnout debate

The costs of getting this wrong are substantial. Burnout-related productivity loss and disengagement cost the global economy an estimated $322 billion annually. For startups specifically, the numbers are grimmer.

Teams experiencing chronic burnout see a 40% drop in innovation-driven output. For companies like Gigaton, where the product is fundamentally creative engineering, that productivity collapse could be fatal. You can't solve climate-scale problems with exhausted minds.

Community reaction to this debate has been heated. On Hacker News and Reddit, developers and startup employees lean heavily toward Saarinen's sustainable view. Many point out that companies demanding seven-day weeks often do so to mask inefficient processes or poor product-market fit. Exactly what Gigaton's founders admitted.

Can startups actually have it both ways?

Gigaton wants flexibility and intensity simultaneously. They support employees with families. They reject clock-watching. But they've also turned away candidates who want normal hours, setting "extremely high" performance bars.

This isn't hypocrisy so much as a tension that can't be fully resolved. Early-stage startups operate with genuine constraints. They can't hire twice as many people to halve the workload. Capital is finite. Competition moves fast. Climate deadlines don't negotiate.

The honest version of startup intensity looks something like this: we need people who will work very hard for finite periods, who can judge for themselves what sustainable effort means, and who believe enough in the mission to accept that tradeoff. The dishonest version pretends this is all noble sacrifice rather than partly management failure and structural constraints.

Gigaton at least chose honesty. Whether candidates should accept the deal is another question.

The real divide isn't hours. It's ownership.

Both philosophies, Laqua's grind gospel and Saarinen's sustainable mastery, miss something. The argument isn't really about how many hours you work. It's about whether those hours produce compounding value or just burn runway.

A founder working seven days on the wrong problem destroys the company faster than someone working four days on the right one. Intensity without direction is just expensive motion.

What Gigaton's leaders describe, ownership-driven work with sustainable rhythms, is harder to achieve than either extreme. It requires leaders who can admit mistakes, prioritize ruthlessly, and hire people mature enough to manage their own intensity. Most startups claiming a "high-performance culture" actually have none of those things.

Frequently Asked Questions

Is grind culture necessary for startup success?

Research suggests no. 51% of failed startups cite founder burnout as a major factor, and chronically burned-out teams see 40% drops in innovation output. Sustainable intensity, focused effort with proper rest, tends to outperform unsustainable grinding.

Why do startups reject candidates who want 9-5 hours?

Early-stage startups face genuine resource constraints. They can't hire enough people to distribute work across normal schedules while moving fast enough to survive. The tradeoff is real, even if the framing as noble sacrifice is often dishonest.

What is extreme programming's approach to work pace?

Extreme programming practitioners value sustainable pace achieved through fast feedback loops, technical excellence, and ruthless prioritization. Progress feels relentless but mindful, avoiding the boom-bust cycles of crunch culture.

How much does burnout cost businesses globally?

Burnout-related productivity loss and disengagement cost the global economy an estimated $322 billion annually, affecting both individual companies and broader economic output.

Source: Sifted