Backend Engineer (Europe)

About the role:

Salary range: $80k – $105k USD*

We are looking for smart engineers who love to code, seek challenging problems, and appreciate recognition for excellent work.

As a core engineer at Kalepa, you'll work on real product and R&D systems at the intersection of software engineering and applied AI. You will own backend services, data and ML pipelines, and the infrastructure behind our product used by commercial insurance underwriters.

You'll build and improve systems that ingest, process, and reason over large volumes of structured and unstructured data, including documents, third-party sources, and model outputs. This is hands-on engineering work on problems that matter to the business, with ownership of systems end to end.

You'll collaborate closely with experienced full-stack, backend, ML, and platform engineers, and you'll be expected to shape how production systems are designed, built, tested, and operated at scale. We're a small team where individual contributions have an outsized impact on both our technology and our business.

You'll Be a Good Fit If You:

• Have 3+ years of professional software engineering experience building and shipping production systems
• Have excellent development skills including design, debugging, and problem solving
• Are strong in Python, with solid fundamentals in at least one other language
• Have worked with relational databases, with a preference for PostgreSQL
• Have experience with AWS and asynchronous or serverless workflows (EC2, Lambda, etc.)
• Can design and build data-driven microservices leveraging RESTful APIs
• Have a degree in computer science, mathematics, engineering, or a related field, or equivalent practical experience
• Enjoy writing code and solving non-trivial technical problems
• Are curious about AI, data, and real-world applications of machine learning
• Take ownership and are comfortable working with ambiguity
• Move fast, learn quickly, and value high standards
• Appreciate direct feedback, meritocracy, and transparency

What We Offer:

• Competitive salary based on experience level*
• Significant equity options package
• Direct work on core systems at a fast-growing AI startup
• Fully remote work from Europe
• Onsite team events in Warsaw and global team offsites
• Real responsibility and production impact from day one
• 20 days of PTO a year
• Gym, phone, and learning stipend reimbursement

**The salary range listed is an estimate and will vary based on a variety of factors. Final compensation will be determined during the offer stage based on relevant experience, performance during the interview process, and geographic location, and may therefore differ from the posted range. *