Senior Software Engineer (Java)

Java

Lubicz 23a, Kraków

ALTEN Polska

Full-time

Any

Senior

Hybrid

Tech stack

English

B2

Java

advanced

Spring

advanced

Spring Boot

regular

RESTful API

regular

Unit Testing

regular

CI/CD

regular

Cloud

regular

Job description

Your daily tasks will include:

• Design, develop, and maintain high-quality Java applications for Android

• Collaborate with cross-functional teams to deliver new features and enhancements

• Ensure code quality through code reviews, unit testing, and best practices

• Optimize application performance and troubleshoot issues

• Participate in architectural discussions and technical decision-making

• Contribute to continuous integration and delivery pipelines

• Mentor junior engineers and share knowledge within the team

• Stay up-to-date with industry trends and emerging technologies

• Write clear technical documentation

• Support the deployment and monitoring of applications in production

Required Skills and Experience:

• Strong analytical and problem-solving skills

• Ability to work effectively in a fast-paced, agile environment

• Excellent communication and teamwork abilities

• Proactive attitude and willingness to take ownership

• Attention to detail and commitment to delivering high-quality solutions

• Adaptability to changing priorities and requirements

• Passion for learning and continuous improvement

• Customer-focused mindset

• Fluency in English (written and spoken)

• Experience working in international teams is a plus

Technical Requirements:

• 5+ years of professional Java development experience (Java 8 or above)

• Solid understanding of object-oriented programming and design patterns

• Hands-on experience with Spring, Spring Boot, and RESTful APIs.

• Proficiency in version control systems (e.g., Git)

• Knowledge of unit testing frameworks (e.g., JUnit, Mockito)

• Experience with CI/CD tools and processes

• Understanding of messaging systems (Kafka, IBM MQ).

• Exposure to cloud platforms (AWS (EKS, Lambda), GCP, or Azure).

• Experience with ORM frameworks (Hibernate, MyBatis).

• Understanding of secure coding practices is a must

• Experience in the banking or fintech sector is an advantage

Published: 09.08.2025

Meet the company

ALTEN Polska

Jesteśmy częścią ALTEN Group, utworzonej w 1988 roku we Francji i mającej siedziby w 30 krajach. Grupa ALTEN przez 35 lat ugruntowała swoją pozycję światowego lidera w dziedzinie inżynierii i usług IT.Wspieramy kluczowych graczy w branżach: lotniczej, kosmicznej, obronnej, morskiej, motoryzacyjnej, kolejowej, energetycznej, finansowej, telekomunikacyjnej, sprzedażowej i biomedycznej.Przy obrotach finansowych przekraczających 4 miliardy euro w 2024 roku, ALTEN zatrudnia obecnie ponad 57 700 pracowników na całym świecie.

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