CareerPlan

Senior Scala Engineer

Kraków, małopolskieRemoteFull-time2026-10-30 → 2026-11-02
Hybrid

Core

Design, build, and evolve the backend for a high-scale event processing and analytics platform that ingests customer behavior events and powers AI-driven customer experiences.

Role type

Senior Scala Engineer (Backend)

Builds

Event ingestion, processing, and storage systems; analytics modules; microservices on Kubernetes.

Domain

Fintech / Retail / eCommerce / AI-driven behavioral analytics

Deliverable

production ML models

Required skills

Scala (effect systems: Cats Effect, ZIO, Akka/Pekko), Apache Kafka, Kubernetes, SQL, NoSQL, microservices architecture, distributed systems design, debugging in distributed environments

Preferred skills

JVM internals (GC, profiling), observability (OpenTelemetry, Jaeger, structured logging), cloud environments (Azure, GCP)

Technologies

Scala, Apache Kafka, SQL, ElasticSearch, ScyllaDB, Kubernetes, Azure, GCP, OpenTelemetry, Jaeger

Responsibilities

Design architecture and patterns for processing and storing high-volume datasets; build software with a strong focus on performance and optimization; translate complex functional and technical requirements into detailed designs; analyze large data stores and surface meaningful insights

Seniority

Senior, hands-on IC