Should I go all in or keep building on the side?

Tobias Boecker Maciej GalkiewiczVas DaskalakisCraig ZingerlineEmil WagensteinSaachi PoleAggelos MouzakitisDenis Balitskiy Oz MerchantZev Asch

10 answers from 10 mentors. Each one was said to a founder on a call.

Updated 8 October 2026

It depends on where you are

Every answer here was said to one founder. Find the one closest to you, then read what that founder was told.

You have a job and an idea you want to test

Keep the job, test demand outside work, and leave once people want what you build.

Tobias Boecker,Vas Daskalakis,Zev Asch,Saachi Pole

You keep waiting until you feel ready

Save some money, set a point where you would stop, and take the risk.

Maciej Galkiewicz, Oz Merchant

Your own thing is not paying the bills

A job for a while is fine. Weigh how much pay you give up to keep going on your own.

Craig Zingerline,Emil Wagenstein

You are job hunting while you test ideas

Keep something of your own going: an offer, or a partnership that pays after results.

Aggelos Mouzakitis,Denis Balitskiy

Tell us about your case

Answer a few questions, then meet your mentor matches.

Build on the side

Keep pay coming in while you test

Said to a well-paid employee with a young child weighing going independent

Test the waters while still having the job

What I always recommend is: test the waters while still having the job. I wish my wife would have done it, but she didn't. You might have some contractual limitations there. It might make sense to read your employment contract.

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Said to a salaried professional weighing a promotion against a side startup

When I quit, everything happened light years faster

When you're working on your startup in your personal time, it's really hard to feel momentum. Your personal time is by definition time that you need to unwind after work.

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Said to a new consultant asking about startup work on the side

Go all in where you are in your career

If you wanted to, you could scout for ideas on weekends. Start with who's actively seeking a solution. If you find that sweet spot, you can launch a prototype to test it. Once it clicks and people love it, you can decide, OK, maybe it's time to leave.

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Said to a founder splitting time between a startup and job search

While you polish your resume, also build an offer

Also find something that gives you a reason to speak with people, so that you start creating a network. Back then, I doubly invested in resumes instead. It was a huge mistake.

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Said to someone weighing a side business against a comfortable job

Problem plus a better solution? Don't leave your job

You should never start a company because you want to be rich or don't want to work for anybody else. On your own, with no company to give you a paycheck, an office and benefits, it's not easy.

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Know your numbers first

Income, savings and a point to stop

Said to a second-time founder weighing how long before taking a job

Question for you: how are you paying the bills

Six months from now you might need to take a job for stability and keep it as a side hustle. That's perfectly OK.

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Said to an agency founder weighing a return to a job

It's always an economic decision

Otherwise you can wake up in 15 years with a wife and two kids and zero savings. That happens because you were always doing your own thing and not taking the opportunities you had.

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Said to an employee running a side business, unsure about quitting

A clear line: continue, persevere, or wrap it up

If you quit, what's the downside risk for you? Can you be OK with that? Is there any excuse worth using not to do it? Doing it on weekends for a while is another option too.

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Skip the job

Put your time into your own thing

Said to an employee thinking of staying a couple more years first

You're never gonna be ready, just do it

Quite often I had conversations with people in their mid 30s who wanted to raise money so they could leave their jobs. They did something on the side, but something on the side is always limited because it's on the side.

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Said to a founder weighing a job while testing different things

Maybe something in between: a partnership, not a job

Maybe you could go to some business and say: I noticed you have this pipeline, I can help you improve it. Just as a test, say: don't pay me, pay me after. Even if you don't make money, you can say you helped XYZ people improve by XYZ percent. That can be your social proof to position yourself further.

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What would a mentor tell you?

Each answer here fits one founder. Tell us where you are.

Answer a few questions, then meet your mentor matches.

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How this page is made

These answers come from real conversations between founders and GrowthMentor mentors, edited for clarity and with personal details removed. Mentors can update or remove their answers at any time.