Senior Backend Engineer – Kafka & Cloud (Remote)

Winged IT; Polska; Hybrid; PLN 220,000 - 248,000; Full time

Benefits offered by this job

Fully remote cooperation

Occasional business trips to Germany

International project experience

Job summary

Leading Global Consulting Company in Poland is seeking a Senior Backend / Fullstack Developer to join an international product team in Customer Data Management. You will design, develop and operate scalable services built with Java/Kotlin and Spring, and work with Apache Kafka to enable real-time data exchange across CRM and enterprise systems.

The role emphasizes end-to-end ownership, cloud-native development on AWS, and a DevOps mindset, with occasional business trips to Germany.

Qualifications

• Several years of professional software development experience with Java and/or Kotlin.
• Strong hands-on experience with Spring.
• Strong practical experience with Apache Kafka in production environments.
• Experience designing and implementing APIs and system integrations.
• Solid experience with software architecture and system design.
• Good understanding of event-driven architectures, asynchronous communication and distributed systems.
• Practical experience with AWS and cloud-native application development.
• Knowledge of cloud engineering best practices, including Infrastructure as Code and cloud security.
• Strong DevOps mindset and experience taking responsibility for applications after deployment.
• English communication skills in an international environment.

Responsibilities

• Design, develop and maintain scalable backend services using Java and/or Kotlin with Spring .
• Build and maintain APIs and integrations between customer-facing applications, CRM platforms and other enterprise systems .
• Work extensively with Apache Kafka to support event-driven communication and real-time data exchange .
• Design and develop solutions based on distributed and event-driven architectures .
• Contribute to software architecture, system design and technical decision-making .
• Develop and operate cloud-native solutions running on AWS .
• Apply cloud engineering best practices, including Infrastructure as Code, cloud security, automation and observability .
• Take end-to-end ownership of developed services, including deployment, monitoring, troubleshooting and production support .
• Work according to a DevOps-oriented "you build it, you run it" approach .
• Collaborate closely with developers, architects, product teams and other technical stakeholders in an international environment .
• Ensure solutions are scalable, maintainable, secure and reliable throughout their lifecycle .

Skills

Java

Kotlin

Spring

Apache Kafka

APIs

Cloud AWS

Distributed systems

CI/CD

English

Salesforce API (nice to have)

Job description

Leading Global Consulting Company in Poland is seeking a Senior Backend / Fullstack Developer to join an international product team in Customer Data Management. You will design, develop and operate scalable services built with Java/Kotlin and Spring, and work with Apache Kafka to enable real-time data exchange across CRM and enterprise systems.

The role emphasizes end-to-end ownership, cloud-native development on AWS, and a DevOps mindset, with occasional business trips to Germany.