Senior Java Microservices Engineer | Kafka, Cloud, Hybrid

ALTEN Polska; Warszawa; Hybrid; PLN 210,000 - 320,000; Full time

Benefits offered by this job

Medicover medical care

Medicover Benefits platform

Medicover Sport card

Referral Program

Layette for a newborn employee’s child

Group life insurance

B2B or Contract of Mandate options

Job summary

ALTEN Polska is seeking a Senior Software Developer to design and maintain microservices-based systems with Kafka in a hybrid Poland team.

The ideal candidate has 6-8 years in software development, strong Java/Spring expertise, and experience with cloud-friendly architectures. Advanced English and banking-sector exposure are a plus. We offer a stable, long-term role with career growth and relocation options.

Qualifications

• 6-8 years of software development experience with 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

• Diagnosing and resolving system issues, including root cause analysis and documentation review.
• Supporting the development and maintenance of production systems.
• Planning team tasks and monitoring system performance.
• Communicating 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

Microservices

Kafka

Java

Spring Boot

Cloud

English

Education

Higher education

Tools

Git

Jira

Confluence

Docker

Liquibase

Hibernate

Avro

Job description

ALTEN Polska is seeking a Senior Software Developer to design and maintain microservices-based systems with Kafka in a hybrid Poland team.

The ideal candidate has 6-8 years in software development, strong Java/Spring expertise, and experience with cloud-friendly architectures. Advanced English and banking-sector exposure are a plus. We offer a stable, long-term role with career growth and relocation options.