Senior Java Microservices Engineer | Kafka & Cloud

ALTEN Polska; Katowice; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Medicover care

Medicover benefits platform

Medicover sport card

Referral program

Newborn allowance

Group life insurance

Flexible contract options

Job summary

ALTEN Polska is seeking a Senior Software Developer with strong expertise in microservices, Kafka-based systems, and cloud-ready solutions. You will design, develop, and maintain scalable services, collaborating with architects and cross-functional teams.

The ideal candidate has 6–8 years of experience, advanced English, Java 11+/21, Spring Boot, Kafka, and modern tools (Git, Jira, Confluence, Docker). Hybrid work in Poland with opportunities to grow and relocate within ALTEN branches.

Qualifications

• 6–8 years of experience in software development, with a focus on microservices and Kafka.
• Strong analytical skills for decomposing requirements and designing solutions.
• Proficiency in Java (preferably version 21, minimum 11), Spring Boot 3.4+, Spring Data JPA, and Spring Cloud Stream.
• Experience with Kafka, Avro, REST, Git, Jira, Confluence, Docker, Liquibase, and Hibernate.
• Advanced English proficiency.
• Higher education in a relevant field.
• Experience in the banking sector (2–5 years) is a plus.

Responsibilities

• Diagnose and resolve system issues, including root cause analysis and documentation review.
• Support the development and maintenance of production systems.
• Plan team tasks and monitor system performance.
• Communicate effectively with business stakeholders, maintenance teams, and development teams.
• Proactively identifying areas for improvement and driving innovation.
• Defining metrics and alerts for technical and business monitoring.
• Automating processes, including test creation and optimization.
• Conducting code reviews and updating technical and business documentation.
• Overseeing vulnerability management and security compliance.
• Onboarding and mentoring team members.
• Developing new functionalities and enhancing existing ones in alignment with business requirements.
• Participating in the full Agile lifecycle of user stories.

Skills

Java

Spring Boot

Spring Data JPA

Spring Cloud Stream

Kafka

Advanced English

Education

Higher education in a relevant field

Tools

Jira

Confluence

Git

Docker

Liquibase

Hibernate

Job description

ALTEN Polska is seeking a Senior Software Developer with strong expertise in microservices, Kafka-based systems, and cloud-ready solutions. You will design, develop, and maintain scalable services, collaborating with architects and cross-functional teams.

The ideal candidate has 6–8 years of experience, advanced English, Java 11+/21, Spring Boot, Kafka, and modern tools (Git, Jira, Confluence, Docker). Hybrid work in Poland with opportunities to grow and relocate within ALTEN branches.