Staff Software Engineer
Location
montreal (administrative region), qc
Job Type
Full-time
Category
Other-General
Posted
June 05, 2026
About Zeffy
Zeffy is the fastest-growing nonprofit platform in North America, helping organizations raise funds, run events, and engage donors.
About The Role
As a Staff Software Engineer at Zeffy, you’ll work on key product features while playing a central role in elevating the engineering team. You’ll bring experience that helps others make better technical decisions, navigate complexity with confidence, and maintain our focus on building simple, high-quality solutions as we grow.
Development Principles at Zeffy
- We always optimize the ratio impact / effort, calling it Zeffy perfectionism.
- We build the simplest solution first to validate ideas quickly, keeping the codebase clean without solving problems that don’t exist yet.
- We are organized in 2‑month cycles to prioritize radically, setting targets on efficiency, security, stability, and performance.
- Trust and ownership: every target is clear and ...