Java Developer (with German and English)

NATEK; Poland; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Internal Mobility

Referral Bonus

NATEK Club

CSR Events

Education & IT events

Multisport

Technical and Personal training

Language courses

Job summary

NATEK is seeking a Senior Java Developer to support a client in the energy sector in Poland. You will develop and maintain Java applications with Spring Boot, Docker, and Kubernetes, and work with Kafka, Spark/Flink, and CI/CD in cloud environments.

The role requires 8+ years of Java experience, strong design patterns, English C1 and German B2, and readiness to start on short notice. You will collaborate in an Agile team and contribute to secure, high-performing software.

Qualifications

• Minimum 8 years of professional Java development experience.
• Strong expertise in Spring Boot or similar frameworks (Quarkus/Jakarta EE).
• Solid experience with Docker and Kubernetes; extensive Kafka/Kafka Streams knowledge.
• Experience with Apache Spark and/or Flink; practical CI/CD and security know-how.

Responsibilities

• Develop and maintain Java applications and services.
• Implement new features based on business and technical requirements.
• Troubleshoot and improve existing solutions.
• Work with Kubernetes, CI/CD, and cloud environments.
• Ensure software quality, security, performance, and reliability.
• Support releases and production systems.
• Collaborate with technical teams in an Agile environment.

Skills

Java

Spring Boot

Docker

Kubernetes

Kafka

Spark/Flink

CI/CD

Security

SQL/NoSQL

German (B2)

English (C1)

Tools

Docker

Kubernetes

Kafka

Spark

Flink

CI/CD

SQL

NoSQL

Job description

Job Description

Join NATEK as a Java Developer and support a project for a client in the energy sector.

Job Description

Join NATEK as a Java Developer and support a project for a client in the energy sector.

Your Responsibilities

• Develop and maintain Java applications and services.
• Implement new features based on business and technical requirements.
• Troubleshoot and improve existing solutions.
• Work with Kubernetes, CI/CD, and cloud environments.
• Ensure software quality, security, performance, and reliability.
• Support releases and production systems.
• Collaborate with technical teams in an Agile environment.

Our Requirements

• Minimum 8 years of professional experience in Java development.
• Strong expertise in Spring Boot or similar frameworks such as Quarkus or Jakarta EE.
• Solid experience with Docker and Kubernetes.
• Extensive knowledge of Apache Kafka and Kafka Streams.
• Practical experience with Apache Spark and/or Apache Flink.
• Knowledge of design patterns, CI/CD, and security.
• Familiarity with SQL and NoSQL databases.
• German at B2 level and English at C1 level.
• Proven senior-level experience with relevant recent project experience.
• Availability to start on short notice.

Benefits

• Internal Mobility Program – enjoy many opportunities for career growth, job rotations, diversity of projects & technologies
• Referral Program – enjoy cooperation with your colleagues and get a bonus!
• 5/10 Years NATEK Club – we offer long-term cooperation and celebrate each fifth-year cooperation anniversary with gifts
• NATEK CSR Events & team buildings – enjoy our values: accountability, partnership and expertise and #workITwithus
• Education – benefit from our know-how, learning courses and certificates and IT events – be part of the community of leaders of the industry and take part as a speaker or a visitor
• Multisport
• Technical and Personal training
• Language courses

Additionally only for COW:

• Life insurance
• Bonuses for Personal Events
• Day off for volunteering