IC4 Senior Full-Stack Engineer
Brazil (Remote) | In-person team gatherings in the U.S.
About Cal.com
Cal.com is the open scheduling infrastructure for everyone. Trusted by developers and enterprises alike, it is open-source, privacy-first, and built to be deeply customizable. From startups to governments, it powers scheduling for millions with speed, flexibility, and transparency. It’s remote-first, async-first, and building the future of time.
Engineering at Cal.com
Engineering at Cal.com is fast, open, and foundational. They build core internet infrastructure for scheduling that is open-source, scalable, and reliable. Engineers own projects end-to-end, move with urgency, and think long-term. The team values transparency, autonomy, and honest collaboration over process-heavy workflows. You’ll thrive in the environment if you care about clean systems, sustainable growth, and building tools that connect the world.
About You
- Ability to speak and write fluently in English (B2+)
- Known for being the wizard behind the code, bringing complex ideas to life through clean, thoughtful solutions
- Ample knowledge of UI/UX and basic prototype design principles
- Comfortable working asynchronously and across time zones, without needing full specs or step-by-step instructions
- Excited about contributing to the product’s long-term growth and success
- Motivated by solving complex technical challenges and building high-quality software used by millions
- Able to work independently and collaboratively, thriving in a remote, self-managed environment
Core Stack
- Next.js (Vercel runtime) — used for both backend logic and frontend rendering
- tRPC — end-to-end type-safe API communication
- Tailwind CSS — utility-first styling for consistent UI
- Prisma — type-safe database ORM
- FlightControl + AWS — infrastructure orchestration and cloud deployment
- Docker — containerized development and open-source packaging
- Checkly, Grafana, Axiom, Sentry — observability, monitoring, and alerting stack
What You’ll Do
- Work in a role that’s 90% backend and 10% frontend, focused on building robust, scalable systems and thoughtful integrations.
- Ensure smooth daily releases and deployments.
- Review complex and high-risk pull requests from internal teams and the open-source community.
- Investigate and resolve complex issues (e.g., round-robin logic that operates across global time zones with varied configurations)
- Take ownership of bringing the community-owned Docker repository under our official support.
- Build and maintain observability tools such as alerts, dashboards, and metrics to proactively identify performance or usage issues.
- Push the team forward in terms of code design and quality. Must have experience with clean coding principles, DDD, and event-driven systems
- Mentor and guide team members across all seniority levels.
- Contribute to documentation and internal knowledge sharing.
Bonus Points
- Prisma (ORM for typed database access)
- FlightControl (for deploying and managing infra)
- AWS (hands-on, not just EC2 basics)
- Checkly, Grafana, Axiom, Sentry (for reliability and observability)
- Docker (especially in CI/CD or open-source infra contexts)
Compensation & Benefits
- Salary range: $100,000 to $132,000 USD
- 30 days minimum PTO per year
- Company retreats in stunning destinations
- Small, high-impact team
- Work on one of the fastest-growing commercial open-source projects
- Async-first, remote-first, flexible work schedule
- WIP (work in pajamas)
- Personal trainer guidance for physical health
- Paid parental leave
- Global relocation support
- Learning stipend
- MacBook Pro & Accessories
- Direct deposit into your bank account 2x per month
- Accounting and company setup advisory (for BR-based CNPJ)
- Team Success Manager for ongoing career support
- Grammarly Premium subscription
Next Steps
- Apply
- First Interview with Keepers (60 min)
- Interview with the Hiring Manager (60 min)
- Technical Interview (60 min)
- Optional: Bounty (paid open-source contribution to the platform)
- Interview with Product Team (60 min)
- Final Interview (60 min)
