How to find a technical co-founder in Poland, a practical guide

How do you find a developer who becomes a co-founder, not a freelancer?

A technical co-founder is not a "cheaper way to get code", they're a partner who co-owns the product and technology. In Poland, the best approach combines: an intent-first platform (Foundersi), hackathons, open source, and precise LinkedIn outreach.

A good tech co-founder gets dozens of pitches per month. You'll stand out if you come with a prototype, customer data, and clear equity, not just a "brilliant idea."

Why don't developers respond to generic ads?

Where to find a tech co-founder in Poland?

1. Foundersi, filter executors with building intent; see stack and experience on profile.
2. Hackathons, HackYeah, HackNation, local events, 48h of joint work is the best test.
3. GitHub / open source, find projects in your niche, see who commits, write with a specific reason.
4. Discord / Slack communities, Polish dev groups (e.g., Polska Społeczność IT, framework groups).
5. YC Co-Founder Matching, global pool, but requires filtering by location.

What to do before messaging a developer?

Minimum viable founder, before looking for a CTO:

• 10+ conversations with potential customers (notes, not just "I talked to people")
• No-code prototype (Bubble, Webflow, Figma) or simple landing with waitlist
• Clear 2-sentence problem description
• Equity proposal (e.g., 35% CTO, 4-year vesting, 1-year cliff)
• 90-day plan (what you build, when, why)

A developer who sees preparation treats the conversation differently than another "looking for someone to build an app."

How to run a technical interview without being a dev?

You don't need to write code, you need to ask the right questions:

1. "What stack do you propose and why?" (listen for reasoning, not buzzwords)
2. "How long for MVP and what's in scope?"
3. "What did your last zero-to-production project look like?"
4. "What if we need to pivot in 3 months?"
5. "How do you want to resolve technical vs business conflicts?"

Then: a joint sprint, build a landing + one feature in a week. That says more than an hour of talk.

How much equity to give a technical co-founder?

Always: 4-year vesting, 1-year cliff. Without it, you risk someone leaving with full shares.

Summary

A tech co-founder is a partner, not a contractor. Come with data, a prototype, and clear equity, and searching on Foundersi, hackathons, and dev communities will deliver real results.

Foundersi connects originators with executors who want to build, not just "do projects."