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Senior Software Engineer

Kraków, małopolskie💼 Full-time🗓 2026-04-03 → 2026-08-04

Core

Building a next-generation Commerce and Retail Media platform with AI-driven real-time shopping intent matching and cleanroom data integrations.

Role type

Senior backend software engineer (JVM ecosystem)

Builds

Scalable, lightweight architecture for publishers, advertisers, and retailers

Domain

Ad-tech / Commerce and Retail Media

Deliverable

production ML models | product features | infrastructure

Required skills

Distributed systems design, AWS cloud services, JVM ecosystem (Java/Kotlin), Event streaming (Kafka), Testing (unit/integration), AI coding tools usage, Frontend adaptability

Preferred skills

Kotlin, Apache Spark, Terraform, Docker, GitHub Actions

Technologies

AWS (ECS, Fargate, Lambda, Cognito, Route53, DynamoDB, Aurora, ClickHouse, Redshift, S3), Spring Boot, Kafka, TypeScript, Angular, Vue, Gradle, DataDog, PagerDuty

Responsibilities

Build new features using AWS services at scale, Design architecture with focus on scalability and maintainability, Work closely with Product and Business teams, On-call rotation

Seniority

Senior, hands-on IC

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