Staff Software Engineer

Zeffy

Full-time Other-General
Apply Now
Location
montreal (administrative region), qc, Canada
Posted
June 26, 2026

Job Description

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, youโ€™ll work on key product features while playing a central role in elevating the engineering team. Youโ€™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 donโ€™t exist yet.
  • We are organized in 2โ€‘month cycles to prioritize radically, setting targets on efficiency, security, stability, and performance.
  • Trust and ownership: every target is clear and ...