Who we are

At CLER, we're redefining clean air. CLER is a deep-tech start-up that is revolutionising global air purification. Our cutting-edge, filter-free purification technology delivers ultra-clean air while requiring no maintenance, consuming less energy, and delivering a much more sustainable solution.

Why this matters:

99% of the world’s population breathes air that fails to meet WHO guidelines, causing more than seven million deaths each year.

Indoor air quality is often 2–5x worse than outdoor air, even though we spend 90% of our lives indoors.

CLER's technology is backed by smart Swedish engineering and rigorous innovation. We believe in creating effortless, reliable air quality solutions that work for everyone, without compromise.

We aim to become the new global standard in air filtration. Our ambition is to redefine how the world cleans its air - by cutting waste, reducing CO₂ emissions and protecting public health.

What You’ll Do

• Own and amplify the full spectrum of our marketing and content efforts—from strategy to execution.

• Shape brand narrative and storytelling across channels: website, thought leadership, social, email, events, and press.

• Create compelling content that educates, excites, and converts—blog posts, case studies, videos, pitch decks, and beyond.

• Collaborate with our product, sales, and design teams to deliver cohesive messaging that drives growth.

• Roll up your sleeves, test new tactics, optimize, iterate—and do whatever it takes to get impact.

• Build the foundation of our global marketing machine—establish processes, systems, KPIs, and hire for scale.

• Set the stage for the next level—evolve into a future CMO role as we grow.

Who You Are

• A few years of hands‑on marketing and content experience, agency, startup, or corporate, where you’ve owned end‑to‑end initiatives from scratch.

• A fearless builder: you’re ok getting your hands dirty, trying things that might fail, and learning fast.

• Strategic, creative, and results‑driven, you craft compelling stories and back them with data.

• Comfortable with basic design tools (e.g. Figma, Canva, Adobe Creative Suite) -enough to ideate, tweak, or guide designers.

• Hunger for ownership, you're excited about building and owning a function, not just executing tasks.

• High-growth mindset: this isn’t your final role, you’re aiming for CMO one day.

What We Offer

• Come in early stage in a high ambition startup. Grow with the role and take more responsibility, also over European- and Global markets

• A pioneering role on a global stage, no playbook, real ownership, real impact.

• Collaborate with exceptional, mission‑driven teammates, and help define our brand legacy.

• Competitive salary plus a transparent, high-upside equity program

• Most importantly - Making a true impact for the world - contribute to cutting waste, reducing CO₂ emissions and increasing public health.

Recruitment process

We’re reviewing applications continuously, so don’t wait to apply. This is a full-time position based in Stockholm, Sweden. Swedish work permit is required.