19h ago

Junior Back End Engineer

Krakow

$60k-$90k / yearest.

full-timejunior Remotesoftware

🛠 Tech Stack

💼 About This Role

You'll build APIs and backend services for a real-world, large-scale data platform used by thousands of customers. You'll contribute to meaningful features from day one, working closely with experienced engineers on fast, reliable systems.

🎯 What You'll Do

  • Contribute to features across the full development lifecycle.
  • Build APIs and backend services that power customer-facing products.
  • Work with large datasets and high-performance databases.
  • Improve code quality through testing, refactoring, and code reviews.

📋 Requirements

  • Knowledge of Ruby on Rails or proficiency in Python or similar languages.
  • Strong grasp of algorithms, RESTful systems, and API design.
  • Portfolio of meaningful Github contributions or personal projects.
  • Interest in backend systems and working with data.

✨ Nice to Have

  • Experience with Clickhouse or other OLAP databases.
  • Experience with MongoDB or other document stores.
  • Experience with Sidekiq or other asynchronous task runners.

🎁 Benefits & Perks

  • 🧑‍🏫 Mentorship from senior engineers.
  • 🔧 Real ownership of features (not just small tasks).
  • 🌐 Exposure to large-scale production systems.
  • 🤝 Collaborative culture.
  • 📈 Opportunities to grow and learn new things.
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