Principal Engineer

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Kevel is hiring a mid-level full-time remote engineer to work on the Delivery team responsible for maintaining and enhancing Kevel’s ad serving platform. The role involves evolving the ad decision pipeline, improving platform architecture for scalability and reliability, collaborating with product management to build new features, ensuring 24/7 operational oversight, and working with customer success teams. Candidates must have experience building and operating distributed systems in cloud environments, strong backend programming skills in languages such as Clojure, Rust, Node.js, Java, Kotlin, Scala, or other JVM languages, experience with latency-sensitive systems, HTTP APIs, databases, and be comfortable with on-call rotations. Preferred skills include AWS/GCP, infrastructure as code tools, event streaming, observability, testing, and refactoring distributed systems. The position is 100% remote for applicants legally eligible to work in Hungary, Spain, or Portugal. Benefits include comprehensive health coverage, retirement plans, unlimited PTO, paid holidays, annual company retreat, home office stipend, parental leave support, and a $300 annual news subscription allowance.