You're hiring an engineer in Austin. The candidate has three jobs on their resume in the past three years. You want to ask: "Are you going to leave us in six months too?" Instead you say: "Tell me about your career goals."

They respond: "I want to learn as much as possible and keep growing my skills."

You hire them. Eight months later, they leave for Google.

Most founders think: "We should screen out job hoppers and people who'll use us as stepping stones." What they don't realize: everyone is using everyone as stepping stones, and that's how modern careers work. Your job isn't to prevent turnover; it's to find people whose next step aligns with what you're building right now.

Founders who try to hire "lifers" in a startup environment set unrealistic expectations and miss great candidates. Founders who ask the wrong commitment questions face discrimination claims. Founders who don't understand what actually predicts retention make hiring decisions based on useless signals.

Here's how to assess commitment realistically, what you can legally ask, and why the whole question might be wrong.

No one stays forever. Especially at startups.

Average tenure at startups:

Example - 12-person AI startup, San Francisco, California:

Founder obsesses over hiring people who'll "be here for the long haul." Rejects candidates with 18-month average tenure as "job hoppers."

Result: Hires only people with 5+ year tenures at previous jobs. Those people came from stable big companies, struggle with startup chaos, don't perform well, some leave within a year anyway.

Better approach: Hire people whose average 18-month tenure matches your expected growth stage. If you'll be a 50-person Series B company in 18 months, you need different people then anyway.

❌ "Are you planning to have kids soon?" - Gender discrimination (and it's asking about family plans, which is illegal in many contexts)

❌ "How many more years do you plan to work before retiring?" - Age discrimination

❌ "Is your spouse's job stable, or might you need to relocate?" - Marital status discrimination

❌ "Are you just looking for a stepping stone to a bigger company?" - Not illegal, but reveals you don't understand how careers work

❌ "Will you commit to staying at least 2 years?" - Unenforceable and suggests you're trying to trap people

Why these are problematic:

The first three directly ask about protected characteristics. The last two won't tell you anything useful because people don't know their own future, and trying to extract commitments creates resentment.

Focus on past behavior, motivations, and what they're trying to learn.

What you're listening for:

✅ Green flags:

❌ Red flags:

Example - 15-person fintech startup, New York:

Candidate A: "I left my last three jobs because none of them gave me enough ownership fast enough. I kept expecting to be promoted within six months and was disappointed every time."

Assessment: Unrealistic expectations. Will leave your startup too when reality hits.

Candidate B: "I left my Series B company because I realized I wanted to build 0-to-1 products, not optimize existing ones. That's why I'm talking to early-stage companies now. I know the next 18 months will be chaos, but that's exactly the experience I need."

Assessment: Clear on what they want, realistic about what startups offer. Good fit for current stage.

What you're listening for:

✅ Green flags:

❌ Red flags:

Example - 8-person healthtech startup, Denver, Colorado:

Candidate A: "I want better work-life balance and a clear promotion path."

Assessment: Wrong fit. Startups don't offer either.

Candidate B: "I want to own a product end-to-end, from idea to launch. At my current company, I only work on one piece. I know that means wearing multiple hats and working on things I'm not expert at yet, but that's the point."

Assessment: Right fit. Wants what startups actually offer.

What you're listening for:

✅ Green flags:

❌ Red flags:

Example - 10-person SaaS startup, Miami, Florida:

Candidate A: "I usually know within a few months if something's not working and I move on quickly. No point staying in the wrong situation."

Assessment: Will leave at first sign of difficulty (which happens constantly in startups).

Candidate B: "I spent 18 months on a project that almost got canceled twice. It was painful, but I believed in it. We finally launched and it became our top revenue driver. Looking back, most people would've quit, but I don't start things I'm not going to finish."

Assessment: Demonstrates grit. Good startup signal.

What you're listening for:

✅ Green flags:

❌ Red flags:

Example - 20-person marketplace startup, Austin, Texas:

Candidate A: "I've moved every 10-12 months for the past four years. I get bored easily and like trying new things."

Assessment: Will definitely leave soon. Not necessarily bad, but know what you're getting.

Candidate B: "My first job I stayed 4 years—loved it but no growth path. Second job I stayed 18 months until we got acquired and mission changed. Third job was a mismatch—wrong stage, left after 6 months. Now I'm being selective about early-stage startups because that's where I want to build expertise."

Assessment: Pattern makes sense. Self-aware about what works.

❌ Stated commitment: "I'm looking for a long-term home" (meaningless)

❌ Tenure at stable companies: Past stability doesn't predict future startup retention

❌ "Dream job" language: "This is my dream company!" (Everyone says this)

❌ Enthusiasm in interviews: High energy ≠ staying power

✅ Past tenure pattern: Someone who averaged 2-3 years at previous roles will likely do the same

✅ Clear learning goals that match your stage: They want to learn what you can teach

✅ Realistic expectations: They know what startups offer and don't offer

✅ Stage alignment: They've chosen your stage intentionally

✅ Equity meaningful to them: They understand and care about ownership

Stop asking: "Will they stay forever?"

Start asking: "Will they be effective for the 12-24 months we need them?"

Example - 18-person edtech startup, San Francisco, California:

Old thinking: "We need someone who'll be here for 5 years."

Reality: In 5 years you'll be 200 people or dead. Either way, needs are completely different.

New thinking: "We need someone who can take us from 18 to 50 people (12-18 months). They need to build systems that work for that scale. If they leave after that and we hire someone who can scale to 200, that's perfect."

You can't trap people. But you can make leaving harder than staying.

✅ Continuous learning: They're growing skills they care about

✅ Meaningful equity: They believe in the upside

✅ Clear impact: They see their work mattering

✅ Mission alignment: They care about what you're building

✅ Growth path: Not ladder, but increasing scope/complexity

✅ Great team: They like who they work with

❌ Stagnation: Not learning anymore

❌ Misalignment: No longer believe in mission

❌ Better offer: Competitor offers significantly more

❌ Life changes: Moving, family, personal reasons (you can't control these)

❌ Burnout: Unsustainable pace with no end in sight

Example - 25-person fintech startup, New York:

High retention approach:

Result: Average tenure 2.5 years vs industry average 1.8 years.

Not everyone needs to stay forever.

Example - 12-person AI startup, Austin, Texas:

Hire: Recent grad, wants to learn ML engineering. Transparent: "I want 18-24 months of intense learning, then I'll probably go to grad school or a bigger company."

Founder's reaction options:

Bad: "Not interested in job hoppers."

Good: "Perfect. We need someone for next 18 months to build our ML pipeline. After that, we'll need different skillset anyway. If this turns into their dream job and they stay, great. If they leave on good terms after delivering what we needed, also great."

You can't predict long-term retention. You can predict short-term fit.

Best practices:

On assessing commitment:

On legal questions:

On retention strategy:

Three actions this week:

The goal isn't preventing people from leaving. It's creating a place where leaving is hard because they're learning, growing, and making real impact.

Some people will leave anyway. That's fine. Better to hire someone great who leaves in 18 months than someone mediocre who stays because they have no other options.

This content is provided for informational purposes only and does not constitute legal advice; for guidance on your specific situation, please consult with an employment attorney licensed in your state.