Careers at Zeffy

Use Your Talent for Good.

Our fundraising platform already empowers 50,000 nonprofits to maximize their impact, and we’re just getting started. Your career spans about 100,000 hours—if you’re looking to use that time to change the world, join us!

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Our mission

François and Thibaut, the co-founders of Zeffy, didn't start out as entrepreneurs driven by AI or blockchain. 7 years ago, while volunteering, they noticed that nonprofits often couldn't afford the best technologies to fuel their fundraising operations. And that makes sense - nonprofits put their funds into their missions - not tech or admin fees.

They launched Zeffy to change this by offering state-of-the-art technology through a business model that makes sense to nonprofits. Zeffy’s mission remains unchanged: creating technologies that empower nonprofits to solve the worlds’ biggest problems.

Our impact

Nonprofits no longer have to choose between paying high fees or settling for subpar technology. Our first product—a fundraising platform powered entirely by voluntary contributions from donors—has already been adopted by over 50,000 nonprofits, helping them raise nearly $1 billion.

The best part? Nonprofits haven’t spent a single cent to use it, saving them $40 million in fees. And this is just the beginning—there’s so much more to come as we continue developing solutions to amplify the global impact of nonprofits.

Working at Zeffy

We're a dedicated team with ambitious goals. We're here to make a difference, building technology that empowers nonprofits to tackle the world's toughest challenges—climate change, inequality, poverty, human rights, and health. Every line of code, every feature we develop, pushes us closer to a better world.We like challenging each other, knowing that out of disagreement comes innovation. There's no room for ego here—just trust, collaboration, and a shared commitment to the causes that matter. For our team, this is more than just work; it’s the most meaningful project we’ve had the chance to work on.

Our mission

François and Thibaut, the co-founders of Zeffy, didn't start out as entrepreneurs driven by AI or blockchain. 7 years ago, while volunteering, they noticed that nonprofits often couldn't afford the best technologies to fuel their fundraising operations. And that makes sense - nonprofits put their funds into their missions - not tech or admin fees.

They launched Zeffy to change this by offering state-of-the-art technology through a business model that makes sense to nonprofits. Zeffy’s mission remains unchanged: creating technologies that empower nonprofits to solve the worlds’ biggest problems.

Our impact

Nonprofits no longer have to choose between paying high fees or settling for subpar technology. Our first product—a fundraising platform powered entirely by voluntary contributions from donors—has already been adopted by over 50,000 nonprofits, helping them raise nearly $1 billion.

The best part? Nonprofits haven’t spent a single cent to use it, saving them $40 million in fees. And this is just the beginning—there’s so much more to come as we continue developing solutions to amplify the global impact of nonprofits.

Working at Zeffy

We're a dedicated team with ambitious goals. We're here to make a difference, building technology that empowers nonprofits to tackle the world's toughest challenges—climate change, inequality, poverty, human rights, and health. Every line of code, every feature we develop, pushes us closer to a better world.We like challenging each other, knowing that out of disagreement comes innovation.

There's no room for ego here—just trust, collaboration, and a shared commitment to the causes that matter. For our team, this is more than just work; it’s the most meaningful project we’ve had the chance to work on.

Our values

Millions to help.

Humanity faces significant challenges ahead, and nonprofits have a crucial role in addressing them. We're dedicated to giving them the best tools to solve the largest problems in the world.

Zeffy is simple.

We believe in simplicity—whether it's in our product, processes, or communication style. High growth doesn't have to equal complexity.

Be there for each other.

We believe that building a better society begins with us. We collaborate as a team, supporting one another along the way. We communicate with honesty and kindness, always taking the time to express our gratitude for one another.

Explore open positions

Open positions

Full Stack Data Scientist
Full-time
Hybrid
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DATA
Intermediate
Paris
Senior Product Designer
Full-time
Hybrid
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PRODUCT
Senior
Paris
Principal Product Designer
Full-time
Hybrid
VIEW JOB
PRODUCT
Senior
Paris
Customer Success Manager
Full-time
Hybrid
VIEW JOB
CUSTOMER SUCCESS
Junior
Montréal
Lead Developer Fullstack
Full-time
Hybrid
VIEW JOB
ENGINEERING
Senior
Montréal