In tech, most people lean one way or the other: building or investing. A few love both, but there aren’t many roles that let you fully do both.
The Scale Partner role is one of them. You shape the investment thesis and the deal and then step inside the company to help fix what’s broken. For the right person, it’s a dream job: big-picture judgement with hands-on impact, week by week.
Augustin Celier has been shaping the role for the last 18 months. Now we’re looking for a second to help founders turn years of hard work into the outcomes they deserve.
Here’s our breakdown of what the role actually is - and why it’s so uniquely suited to people who want to both be high level, and in the weeds, every day.
What is Hexa Scale?
Hexa Scale is an investment partner for SaaS companies that are solid but stuck. These are businesses with real products, real revenue, and loyal customers, but they’ve hit a ceiling. Too slow for VC, too small for PE, they’re often overlooked.
What holds them back isn’t demand, but operations. Many are still running on structures built years ago, long before today’s scale. Product decisions, leadership, and GTM strategies need an upgrade. Most investors shy away because that takes work.
For us, it’s our bread and butter. We join as a late cofounder, combining €5–20M in capital with daily, hands-on expertise to unlock growth and help founders turn years of effort into the outcome they deserve.
What makes the role unique?
Scale across several companies
One of the unique aspects of this role is range. You don’t join one company for years, you work across several. You get to apply your judgement to different companies, see what patterns hold up, and keep learning through real operational experience. It’s still entrepreneurial - you’re inside the business, shaping what happens next - but you’re not tied to a single story. For people who are energized by building and curious about how companies grow in different environments, that range is what keeps the role stimulating.
Get in the weeds with founders
You're not an investor sitting on the edge of the table giving advice. You sit next to the founder and share the responsibility for where the company goes next. The founder knows the product, the customers, and the history inside out. You bring a fresh view and tested patterns from other companies, having a hands on role in things like rebranding, pricing strategy review, new product positioning, etc. The founder isn’t replaced, but supported. You’re the partner who helps them turn years of hard work into a company that finally grows the way it should.
Keep your investor hat on
Some people love the craft of investing: finding overlooked companies, building conviction, running diligence, negotiating and structuring the deal. In most firms, that’s where the role ends - someone else takes over once the deal is signed. At Scale, it doesn’t stop there. The same person who writes the thesis is the one who carries it through, turning the investment case into the operating plan. That means faster decisions, clearer alignment, and real accountability.
For the right person, it’s the best of both worlds: the thrill of the deal and the satisfaction of building.
“The role brings together everything I’ve done before. I’ve founded and scaled companies myself, so I know how it feels when you’ve built something solid, but you’re not sure how to break through to the next level. At Hexa Scale, I get to work with founders in exactly that moment - helping them make the leap from good to great, from linear to exponential. It’s still entrepreneurial, but with the variety that comes with doing it across several companies”
—Augustin Celier, Partner at Hexa Scale
What you get with Hexa
The key point is, you’re not on your own - and you leverage tried-and-tested methodologies that have built tens of companies.
The Hexa engine. Our studio team is part of the package - operators in GTM, product, brand, talent, legal. You can pull them in when the company needs it, instead of trying to do everything yourself. Plus, the Hexa brand makes it much easier to reach customers and candidates.
A model you can shape. Hexa Scale is still young. Augustin set the blueprint and you’ll help evolve it. How we invest, how we operate, how we build momentum… the playbook is still being written.
Network. And there’s the extended Hexa network: founders and operators across dozens of companies, who’ve already been through the problems you’ll face. It makes the job faster, and less lonely.
What we’re looking for
We’re not looking for financiers on one side or operators on the other. The role suits people who want to do both, and are comfortable switching gears. You might have been a serial founder, an operator-investor, or an investor who’s had multiple side projects. Titles matter less than the way you work.
You need to enjoy the craft of deals and the discipline of execution. That means being able to form a thesis and close a partnership, then turn around and run the weekly cadence that gets results.
You need focus. Companies at this stage often have too many priorities. Your job is to help cut them back to the few that really move the needle.
And you need to work well with founders. That requires trust, low ego, and a willingness to share the pressure. You’re not coming in to replace them, you’re there to be the partner who helps turn years of work into lasting success.
Ready to explore?
If you enjoy both the craft of investing and the reality of building, the Scale Partner role may be the fit you’ve been looking for. It’s a chance to help overlooked SaaS companies realise their potential, while shaping a model that doesn’t exist anywhere else.
Apply to become our next Hexa Scale Partner.