A job board built for the planet.
What is C22 Jobs?
C22 Jobs is a free, open source job board dedicated to the sustainability ecosystem: clean energy, climate tech, ESG & reporting, environmental science, green finance, circular economy, and more.
No recruiters. No paywalls. No noise. Just meaningful work, posted directly by the organisations doing it.
Employers post for free. Job seekers apply for free. That will never change.
Why we built it
The sustainability talent market is growing fast, but it's fragmented. Professionals looking for climate-aligned roles have to wade through generic job boards full of irrelevant listings. Companies doing real work struggle to reach candidates who care.
We built C22 Jobs to fix that. A focused, niche-first board where every listing is relevant by definition. Search by category, filter by skills, apply in minutes.
Open source
C22 Jobs is fully open source. The entire codebase (Astro front end, Cloudflare Pages Functions, D1 database schema) is available on GitHub. Fork it, run your own niche job board, adapt it for your community.
C22 is a boutique deep tech agency obsessed with responsible AI and sustainability. We build AI systems, strategy tools, and open products for organisations working on the hardest problems, from net zero infrastructure to climate risk modeling.
Responsible AI and sustainability is in our core DNA: the lens through which every system we design, evaluate, and deploy. C22 Jobs is one expression of that: infrastructure for the ecosystem we're trying to build.
Visit c22.space →