Startup Job / Mitgründer / Praktika: Co-Founder, Commercial - #2756205

(m/w/d) -

Who we are

Traitwise has been around for almost a year. We are three founders, fully bootstrapped.

You will join as the fourth Co-Founder with a Commercial focus, stepping into a product that is already in the market.

Traitwise is an assessment platform for hiring and development decisions.

We deliver scientifically validated signals on cognitive ability, intrinsic motivation, and culture fit so companies can avoid costly mis-hires and identify 10× talent.

Our mission

Our drive: match people with the roles where they can do their best work.

We've all seen it: great people stuck in the wrong roles, while the work that would light them up sits empty somewhere else. That mis-match quietly drains teams, careers, and whole companies.

In 2025, the labour market still works far worse than it should. Companies skim a tiny slice of the available talent; candidates apply to a handful of roles; both sides decide based on incomplete, often misleading signals. The result is wasted potential, stalled growth, and a lot of "this isn't quite it" on Monday mornings.

Underneath that are two structural problems:

- Fragmentation: candidates and companies only ever see a fraction of the options that would actually fit.
- Incomplete information: we rely on CVs, gut feel, and interviews that are bad at predicting real fit.

In other markets (e.g. housing, travel, dating, …), technology has already turned fragmented, opaque systems into fluid, global ones. The labour market is still lagging behind.

Traitwise starts with problem (ii): information. Instead of buzzwords and intuition, we surface clear, scientifically valid signals on ability, motivation, and culture fit. Who can actually do the work? Who will enjoy it? Who will make the team better, not just fill a seat?

Our assessment is the first step towards a broader solution: it makes the right signals visible, prevents mis-hires, and helps uncover 10× talent. We want that rare "this is the right person for this exact role" moment to become normal, and to turn HR from a box-ticking exercise into a real competitive edge.

Step by step, the goal is simple: give every person and every company a fair shot at their best possible match, and make the way we allocate human potential far less wasteful.
Role & Profile
Own customer acquisition and build our first scalable growth engine.

We're looking for a Commercial Co-Founder to take end-to-end ownership of go-to-market, with a clear focus on customer acquisition across channels: your network, cold calling, events, and building partnerships.

In parallel, you shape our ICP, messaging, pricing, geographic focus, and the first scalable plays. You're not doing it all alone, but you're in the lead, and strong in execution.

What you bring

Must

- Strong network at decision-maker level (CEOs, MDs, Heads of HR, PE/VC).
- Hands-on sales operator: cold calling, meetups, conferences. High-volume outreach energises you.
- Proven success in hands-on sales (from cold outreach to closing) and in building a sales organisation; your next step is to make a real dent in the universe.
- Clear focus: for at least 12 months, this role is purely operational, and that's exactly your thing.
- Your start-up capital is your mind and your body. You hit the ground running. No bullshit.
- Idea engine for ICPs, partnerships, and creative access to decision-makers, yet structured, resilient, and conscientious in execution.
- Reputation: natural charisma and reliability.
- Fluent English (ideally C2, or C1).

Plus

- Passion for personality psychology.
- Experience in SaaS / software sales, ideally in international markets.
- Native German speaker.

What you can expect

- Real co-founder status & equity: After a clear mutual trial phase you join as a full co-founder with meaningful equity. The Commercial track and its evolution sit largely in your hands - we're looking for a long-term partner.
- High-level sparring & fast execution: Three ambitious founders with deep technical and psychological-science expertise, plus a strong scientific advisory board. When commercial signals show up, we move fast.
- Deep psychological assessment & self-insight: You'll complete our most comprehensive psychological assessment battery, and our scientific advisory board will get to know your profile in depth – with a clear view on your strengths, risks, and fit as a co-founder.

Setup

- Remote-first. We're based in Berlin and Mallorca, and get together in person when it makes sense.
- Start ASAP, with a proper, clearly defined trial phase – co-founding is basically a marriage.

If this sounds like you, reach out directly to

[email protected]