Principal Engineer

Stack

Responsibilities

• ▹Evolve the ad decision pipeline: balancing, pacing, indexing, filtering, selection, and budgeting
• ▹Improve the platform's architectural qualities for scalability, reliability, security, and performance
• ▹Work closely with product management to design and build new features
• ▹Provide operational oversight to keep the platform running 24/7
• ▹Work closely with customer success teams to deliver value and drive growth

Requirements

• ▹Experience building and operating distributed systems in a cloud environment
• ▹Strong programming experience in at least one production backend language, ideally Clojure, Rust, Node.js, Java, Kotlin, Scala, or another JVM language
• ▹Experience designing or maintaining latency-sensitive systems with tight response-time requirements
• ▹Experience with HTTP-based APIs and production service integrations
• ▹Experience working with databases, including transactional data models
• ▹Comfortable participating in an on-call rotation with clear escalation paths

Nice to have

• ▹Strong AWS and/or GCP experience across compute and storage

What we offer

• ▹100% remote work within Hungary
• ▹Transparent, no-negotiation "Total Rewards" compensation philosophy based on market data

About the company

Kevel is transforming the retail media space with AI-driven ad tech infrastructure APIs that power the Retail Media Cloud™, enabling multi-brand retailers to build dynamic, customizable ad platforms while maintaining full control of their first-party data.