Senior Java/Kotlin Engineer — Data Pipelines (Hybrid)

zooplus; Kraków; Hybrid; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Hybrid work

60% office / 40% home

20 days abroad in approved countries

Career development and training

Wellbeing offers

Subsidised transport or bike leasing

20% discount across all products

Job summary

zooplus is hiring a Senior Software Engineer for the Customer Targeting team in Kraków. You will design, develop, and maintain data pipelines and applications enabling marketing campaigns across channels, collaborating with engineers across Poland, Spain, Austria, and India.

You’ll work on microservices, event‑driven architectures, AWS, Docker and Kubernetes, with a focus on scalable, reliable systems and a strong ownership culture.

Qualifications

• 8+ years of software development experience.
• Strong expertise in Java and/or Kotlin.
• Experience with Spring Framework and Hibernate.
• Strong experience with PostgreSQL and/or Oracle.
• Experience designing and operating microservices and event‑driven architectures.
• Hands‑on experience with AWS, including S3, SNS, SQS, RDS, and IAM.
• Experience with Docker, Kubernetes, and CI/CD pipelines.
• Strong understanding of software engineering best practices, including automated testing, clean code, and SOLID principles.
• Experience applying Domain‑Driven Design (DDD).
• Comfortable working in an Agile, cross‑functional environment with ownership

Responsibilities

• Design, develop, and maintain scalable data‑driven applications.
• Build new features and improve existing products and infrastructure.
• Design and operate microservices and event‑driven architectures.
• Contribute to technical and architectural discussions and decisions.
• Take ownership of software quality, reliability, and performance.
• Work across the full software development lifecycle with a "you build it, you run it" mindset.
• Collaborate with colleagues across teams and locations, sharing knowledge through code reviews and pair programming.

Skills

Java / Kotlin

Spring Framework

Hibernate

PostgreSQL / Oracle

Microservices

AWS

Docker

Kubernetes

CI/CD

DDD

SOLID Principles

Education

Bachelor's degree in Computer Science or related field

Tools

Terraform

Helm

Job description

zooplus is hiring a Senior Software Engineer for the Customer Targeting team in Kraków. You will design, develop, and maintain data pipelines and applications enabling marketing campaigns across channels, collaborating with engineers across Poland, Spain, Austria, and India.

You’ll work on microservices, event‑driven architectures, AWS, Docker and Kubernetes, with a focus on scalable, reliable systems and a strong ownership culture.