Senior Back End Engineer

At Catawiki, every day brings the extraordinary! Whether it’s Daniel Ricciardo’s Formula 1 Car, a Woolly Mammoth’s Skeleton, Lady Gaga's Jumpsuit or Usain Bolt’s running shoe, we encounter exceptional objects every day.

We're a one-of-a-kind marketplace for buying and selling special objects! Each week we offer over 75,000 unique items in auction, carefully curated by our passionate in-house experts.

Having Sold Over 20 Million Unique Objects To Date, We’re On a Mission To Become The World’s Most Popular Destination For Special Objects. As a Growing, Diverse And Sustainable Scale-up, We Proudly Live By Our Core Values

• Taking ownership and driving impact
• Being open to change and feedback
• Being passionate about our mission and our customers.

If these values resonate with you, we’d love to explore how you can join us on this exciting journey!

How We Work

At Catawiki, Europe’s biggest marketplace for special objects, we tackle unique technical challenges at scale. Our platform handles millions of daily requests through scalable microservices in Ruby, built with Infrastructure as Code, Continuous Delivery, peer reviews, and strong observability. We learn fast, experiment often, and focus on quick recovery and iteration.

What You’ll Do

You’ll develop and improve backend services that power the Catawiki platform. Together with a cross-functional team, you’ll build scalable microservices, monitor performance, and use data-driven experimentation to deliver product innovations and an outstanding user experience.

What You’ll Bring

• 7+ years in software development, strong OOP background
• Experience with high-availability, low-latency backend services
• Collaboration skills in autonomous teams & mentoring juniors
• Ability to document, evaluate and communicate solutions
• Passion for learning, shipping features, and tackling challenges
• Ruby experience is a plus, but not required

Why Catawiki

• Visible impact in a global marketplace used by millions
• Career growth with clear development plans & mentorship
• Inclusive, diverse, and collaborative culture (60+ nationalities)
• Hybrid work model, offices in Amsterdam, Paris, and Lisbon
• Perks: Catavouchers, extra days off for personal milestones, and recognition for anniversaries

Location

Based in Amsterdam, open to candidates already living in the Netherlands.