Technical co-founder looking for idea/traction partner — I build, you sell

Strong post. The best technical co-founders are not just builders, they’re leverage — so I like how clearly you’re drawing the line between “build with” and “build for.” The focus on market insight and real problem ownership also makes a lot of sense. Hope you find someone with real distribution and founder energy.

Hey Christian

I am looking for a technical co-founder to help build an autonomous marketing platform that combines Bayesian marketing mix modelling with agentic media buyers.

What I am building

The goal is to move beyond static MMM towards a continuous decision engine that:

Continuously ingests spend and performance data
Runs automated Bayesian MMM with hierarchical and time varying effects
Quantifies uncertainty and marginal returns
Uses agents to recommend and execute media allocation decisions
Learns continuously as new data arrives

In short, a closed loop system for measurement, decision making, and execution.

Why this matters

Most MMM today is slow, manual, and retrospective.
I believe MMM should be continuous and directly connected to execution.

That means:

Models that update continuously
Decisions driven by uncertainty
Agents that act on model outputs
A platform designed for ongoing optimisation

Where I am today

Early stage
Data scientist already onboard with Bayesian experience
Initial design partner conversations underway
Strong domain experience in media and performance marketing

Who I am looking for

Someone interested in:

Probabilistic modelling and Bayesian methods
ML systems and production infrastructure
Agent based systems
Building from first principles
Early stage startups

You do not need to tick every box. Curiosity and willingness to build something ambitious matter most.

If this sounds interesting, I would love to connect and share more.

Happy to chat here or via DM.

Just reading all these comments, and personal experience, one thing about finding a co-founder I have noticed is that it’s not that there aren’t enough people, it’s that early on, it’s really hard to tell who actually has real insight/skin in the game vs who’s just exploring, so a lot of conversations either stall or never even start properly.

Feels like that’s where most of the friction is.

Have you found that to be the case so far, or is it more about not enough of the right people showing up?

Hi Christian,
I’m currently building Juno, a fintech ecosystem for the 4M+ freelancers in Italy. We’re solving a massive pain point: 'Tax Anxiety.' Most freelancers have no idea how much of their bank balance is actually theirs vs. what they owe the State.
Where we are:
• Validated the need with 90+ early adopters (8/10 interest rating).
• Just applied to PoliHub (the startup incubator of Politecnico di Milano) and Bocconi’s start Up accelerator

I’m looking for a technical co-founder to lead the build of our MVP, specifically focusing on PSD2/Open Banking integration to reconcile invoices and bank feeds in real-time.
I’d love to show you the prototype and see if our visions align for a potential partnership. Are you open to a quick 15-min chat ?

See you soon
Mary

Hi Christian, your post stood out, especially your focus on building real products and not just executing ideas.

I’m currently building VozParking, a voice-first parking product, and I’ve developed a working prototype focused on reducing driver friction and distraction.

I agree with your point on not looking for someone to “just build an idea.” I’m looking for a technical co-founder to shape and build the product properly.

Still early on validation, but the problem is very real and I’m committed to pushing this forward. Would be great to connect and exchange perspectives.

Hi Christian,

I saw your post and I think we align on the most important rule: I’m not looking for a developer-for-hire, I’m looking for a Partner A to co-build a legacy.

I am the founder of ArtTower Design Group. I’ve been obsessed with solving the lack of real liquidity in indie gaming assets. My project, Styx: Echoes of Gold, isn't just a game; it's a fintech ecosystem with a hard-capped scalability model (10k user gates) and an internal ledger anchored to real-world yields.

Why I’m reaching out to YOU specifically: Your experience in Mastercard-level transaction processing is exactly what the 'Styx Vault' needs. I have the market validation, the visual assets, and a documented technical roadmap, but I need a partner who can build a high-consistency, atomic backend that mirrors your experience with large-scale financial systems.

I have plenty of 'skin in the game' (pre-designed assets, legal strategy, and economic architecture). I’m not asking for an NDA or a call yet—I’d prefer a brief technical dialogue to see if my standards for the 'Styx Vault' meet your expertise.

Best,

Miguel

Hey, this sounds very aligned with what I’m looking for. I already have a rough MVP and I’m much more interested in building with the right technical co-founder than treating someone like a developer-for-hire. My focus would be on distribution, management, strategy, and funding, while building something real together as actual co-founders. I already have a direction and a product foundation, but I’m also very open to discussing other ideas or evolving and expanding the product if there’s a stronger opportunity. Happy to connect if that sounds interesting.

Building is easy with AI models, selling is tough part

honest take from the other side of this: we have the technical side covered (21 products, working API, automated trading engine) but zero traction because we have nobody doing the selling. the "i build you sell" split sounds clean in theory but in practice the seller needs to deeply understand the product to pitch it well, and the builder needs to understand distribution to build what actually sells. weve learned the hard way that building without distribution input creates products nobody asked for. if you find your partner, make sure theyre involved in product decisions from day 1, not just handed a finished thing to sell.