Senior Backend Engineer - Cloud-Native Java/Kubernetes

Seargin; Polska; On-site; PLN 180,000 - 260,000; Full time

Job summary

Seargin is an international technology transformation and delivery partner seeking a Senior Backend Engineer with strong cloud-native and backend development experience. You’ll work on Kubernetes-based deployments using Java and PostgreSQL in distributed systems.

Ideal candidates have hands-on Kubernetes, Java and PostgreSQL, and familiarity with Spring Boot. English is required; German language skills are a strong advantage as you collaborate with international teams across Europe and beyond.

Qualifications

• Strong hands-on experience with Kubernetes and containerized backends.
• Proficiency in Java and PostgreSQL for backend services.
• Knowledge of Spring Boot is a plus.
• Solid understanding of distributed systems and cloud-native patterns.
• Good command of English; German is a strong advantage.
• Practical experience with n8n is a plus.

Responsibilities

• Develop and maintain backend services using Java and PostgreSQL.
• Work with Kubernetes and containerized environments.
• Support cloud-native platforms' development and operation.
• Design and maintain solutions within distributed systems.
• Ensure reliability, scalability, and performance of backend apps.
• Collaborate with engineering teams to deliver robust solutions.

Skills

Kubernetes

Java

PostgreSQL

Spring Boot

Distributed systems

Containerization

English

German language skills

n8n

Job description

Seargin is an international technology transformation and delivery partner seeking a Senior Backend Engineer with strong cloud-native and backend development experience. You’ll work on Kubernetes-based deployments using Java and PostgreSQL in distributed systems.

Ideal candidates have hands-on Kubernetes, Java and PostgreSQL, and familiarity with Spring Boot. English is required; German language skills are a strong advantage as you collaborate with international teams across Europe and beyond.