Senior Backend Engineer — Java & Spring | Hybrid, Warsaw

Aristocrat; Warszawa; Hybrid; PLN 180,000 - 320,000; Full time

Job summary

Aristocrat in Warsaw is seeking a seasoned Back End Developer to join our R&D team. You will design and implement scalable, asynchronous, cloud-based back-end systems and collaborate with cross-functional teams.

This hybrid role requires a bachelor’s degree in computer science and 6+ years of experience, with strong Java and Spring Boot expertise, MongoDB and Postgres knowledge, and familiarity with Kafka, Redis, and microservices.

Qualifications

• Bachelor's degree in computer science or a related field.
• 6+ years of experience as a software developer.
• Proficiency in Java and Spring Boot.
• Experience with NoSQL databases (MongoDB) and SQL databases (Postgres).
• Experience with Kafka and Redis is a plus.
• Familiarity with microservices, reactive programming, and big data insights.
• Open to using AI tools.

Responsibilities

• Engineer backend systems with scalable, cloud-based architectures.
• Implement back-end features to improve performance and scalability.
• Collaborate with R&D teams to refine SDLC processes.
• Advance Agile practices with Front-End and QA teams.
• Ensure code quality through thorough reviews.
• Leverage AI-powered tools to improve efficiency and data-driven decisions.

Skills

Java

Spring Boot

NoSQL MongoDB

PostgreSQL

Kafka

Redis

Microservices

Reactive programming

Big data insights

Kubernetes

AI tools openness

Education

Bachelor's degree in computer science

Tools

MongoDB

PostgreSQL

Kafka

Redis

Kubernetes

Job description

Aristocrat in Warsaw is seeking a seasoned Back End Developer to join our R&D team. You will design and implement scalable, asynchronous, cloud-based back-end systems and collaborate with cross-functional teams.

This hybrid role requires a bachelor’s degree in computer science and 6+ years of experience, with strong Java and Spring Boot expertise, MongoDB and Postgres knowledge, and familiarity with Kafka, Redis, and microservices.