Executive Assistant to Founder

Location: Lisbon / Cascais / Oeiras area, Portugal

Role type: Part-time, 20 hours/week

Working style: Hybrid - mostly remote with 1 day per week of co-working

Who we are

ENDURE is a sports supplement brand built in Portugal, founded in 2025, for athletes who don't stop. The ones who sign up for Hyrox on a whim. Who run 80km on a Sunday. Who skip the parties to outwork everyone else.

We make ENDURE Recover, Europe's first hybrid supplement for athletes who train across disciplines and refuse to slow down. We're 3 people, 1 product, and we're growing fast. Now we're looking for our right hand.

What this role is

This is the role that takes things off the founders' plates and hands them back done better than we'd have done them ourselves.

Two things sit at the core: keeping our world running (admin, inbox, calendar, the operational glue) and owning how we talk to our customers (replies, follow-ups, making the people who buy ENDURE feel important). Around that, you'll build the systems, SOPs and spreadsheets that mean the same fire never has to be put out twice.

But here's the honest part: your job description will shift. We don't have a playbook. Some weeks you're deep in customer messages, some weeks you're figuring out something none of us have done before. If a fixed, predictable role is what you want, we're genuinely not the right fit, and there's no shame in that.

What you'll do each week

• Run the founders' world (5–6 hrs). Inbox, calendar, scheduling, admin, and personal task for Mia & Nikita. You keep the machine & our lives moving so we can build. You should bring a level of pride & joy to being our lifestyle manager behind the scenes.
• Own customer communication (~5 hrs). Answer, follow up, and make ENDURE customers feel like there's a real person who cares on the other end. Because there is: you.
• Build the systems (3–4 hrs). Turn recurring chaos into SOPs, trackers, and processes that run without us.
• Take on whatever the week needs (4–5 hrs). Research, ops, "can you figure out X by Friday." You take the ball and run three steps further than we asked.

You are the right person if...

• You want real ownership. From the day you join, you're making up a quarter of this company. You'll represent a serious chunk of everything ENDURE does, with real, tangible impact on where it goes. That also means you think like an owner: When you get a task, you find a way to get it done, plus the three things around it we didn't think to ask for. You don't wait to be told the next step. You find it.
• You take real pride in taking care of people. Part of this role is looking after the founders as people, not just tasks: ordering the team's food, booking the doctor's appointment before it slips, catching the small thing before it becomes a problem. You notice those details and get genuine satisfaction from having them handled.
• You love startup pace. No rigid structure. The plan can change on a Tuesday afternoon and that energizes you instead of stressing you out.
• You're a productivity freak. You love a clean system, a good spreadsheet, a repeatable process. Building order out of mess is genuinely satisfying to you.
• You use AI to raise the bar. This one matters. We expect you to use AI, and to use it well: to make your output genuinely sharper, not to quietly hand off the thinking.
• You respond fast. Not because we ping you at midnight, but because fast communication is how a small team trusts each other.
• You get sports & fitness . You don't have to be an athlete. But if someone training for an Ironman or a backyard ultra makes you go "that's incredible" instead of "that's insane," you'll understand our customers.

Hard requirements

• Based within ~1 hour of Lisbon, and able to co-work in person once a week
• Fluent in English and Portuguese (our team runs in English; our customers are in Portugal and across Europe)
• Available during business hours, with some weekend flexibility around big moments (hello, Black Friday)
• Comfortable and genuinely good with AI tools as part of how you work

What we offer

• The chance to help build a brand that's already used by some of the best athletes in Portugal.
• Work directly with the founders Mia & Nikita from day one, no middlemen, full context. You are team member #4. If you have entrepreneurial aspirations, this can be your place to grow, without the risk.
• A role that grows as the brand grows. This starts part-time and is built to become full-time for the right person, who'll shape what it (& ENDURE) looks like a year from now.
• Free supplements (obviously)
• A team of people that is just as obsessed and growth-focused as you are.

How you stand out

Send us a short video of yourself (3-5 mins max) to "[email protected]" answering this:

1. A quick intro: who you are and why you are interested in the role
2. Then answer this: Imagine your first week; the founders are drowning, everything's on fire, and no one has told you yet what to prioritize. Walk us through how you'd figure out what actually matters and where you would start!

Our promise: We speak with every person that submits a video.

We can't wait to hear from you!