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Scheduling infrastructure for absolutely everyone
30K+
GitHub Stars
10M+
Users
20+
Countries
1.8 yrs
Avg Tenure
Cal.com is building the open-source Calendly alternative. With over 10 million users, they have proven that open-source scheduling can compete with — and beat — closed-source incumbents. Their API-first approach makes them the scheduling backbone for thousands of businesses.
Cal.com is radically transparent. Code, roadmap, finances — everything is public. The team collaborates across 20+ countries using async communication. They value shipping speed and believe in small, empowered teams that own entire product areas end to end.
$130K-$170K
per year
$100K-$135K
per year
$120K-$150K
per year
+ 5 more positions available. View all jobs →
“Being part of an open-source company that actually makes money is rare. Cal.com nails the balance between community and business.”
Marcus L.
Full-Stack Engineer
“The team is incredibly talented yet humble. There is zero ego and maximum collaboration.”
Yuki T.
Product Manager