Senior Java Fullstack Developer

ALTEN Polska; Kraków; Hybrid; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Hybrid work from Kraków

Medical care (Medicover)

Career development opportunities

Group life insurance

Employee referral program

Job summary

ALTEN Polska is seeking an experienced Java developer to design, build, and maintain scalable microservices using Java 17/21 and Spring Boot 3.5. You will contribute across the full SDLC, adopt Agile and DevOps practices, and work on automated testing within a hybrid setup in Kraków.

The role requires 6+ years of Java development, DevSecOps knowledge, TDD expertise, and experience with PostgreSQL, Angular, and cloud platforms.

Qualifications

• 6+ years of hands-on Java development (Java 17/21) and Spring Boot 3.5.
• DevSecOps knowledge, including pipeline setup and maintenance.
• TDD expertise (JUnit, Cucumber) and CI/CD implementation.
• PostgreSQL proficiency; familiarity with Oracle is a plus.
• Frontend skills (Angular 17, TypeScript, HTML5) for full-stack candidates.
• Cloud experience (GCP/AWS) for deployment and management.
• Messaging systems (REST APIs, MQ/Solace).
• In-memory data stores (Redis, Hazelcast).
• Automation tools (Ansible, scripting).

Responsibilities

• Design, develop, and maintain scalable microservices using Java 17/21 and Spring Boot 3.5.
• Contribute across the full SDLC—analysis, coding, testing, and deployment.
• Adopt Agile and DevOps practices, including TDD, CI/CD, and automated testing.
• Collaborate with QA to ensure high code quality and development velocity.
• Resolve incidents, monitor systems, and manage problems as part of on-call support (Level 3).
• Develop automated tools to improve support and operational efficiency.
• Mentor junior team members and drive innovative solutions for complex business challenges.
• Leverage AI-assisted coding tools (e.g., GitHub Copilot) to accelerate development.
• Translate functional requirements into technical solutions.

Skills

Java development

Spring Boot

DevSecOps

TDD

CI/CD

PostgreSQL

Angular

TypeScript

Cloud

REST APIs

Redis

Ansible

Tools

JUnit

Cucumber

Job description

ALTEN – A Global Leader in Engineering and IT Services

Founded in France in 1988, the ALTEN Group is a leading technological partner serving the world’s largest clients. In 2023, it achieved revenues exceeding 4.07 billion euros and employs over 57,000 people, 88% of whom are engineers and IT experts.

ALTEN Polska has been operating for 13 years, supporting its clients' innovation, research and development, and IT systems. It has offices in Kraków, Warsaw, Wrocław, Gdańsk, and Poznań.

It serves key industries such as aerospace, space, industrial solutions, automotive, railway, energy, finance, telecommunications, and retail.

Areas of expertise: business analysis, cybersecurity, artificial intelligence, data analysis and cloud solutions, application development, software testing, project management, embedded software, quality management, industrialization, digital transformation, and industrial engineering.

What You’ll Do

• Design, develop, and maintain scalable microservices using Java 17/21 and Spring Boot 3.5.
• Contribute across the full SDLC—analysis, coding, testing, and deployment.
• Adopt Agile and DevOps practices, including TDD, CI/CD, and automated testing (JUnit, Cucumber).
• Collaborate with QA to ensure high code quality and development velocity.
• Resolve incidents, monitor systems, and manage problems as part of on-call support (Level 3).
• Develop automated tools to improve support and operational efficiency.
• Mentor junior team members and drive innovative solutions for complex business challenges.
• Leverage AI-assisted coding tools (e.g., GitHub Copilot) to accelerate development.
• Translate functional requirements into technical solutions.

Requirements

• 6+ years of hands-on Java development (Java 17/21, Spring Boot 3.5).
• DevSecOps knowledge, including pipeline setup and maintenance.
• TDD expertise (JUnit, Cucumber) and CI/CD implementation.
• PostgreSQL proficiency; familiarity with Oracle is a plus.
• Frontend skills (Angular 17, TypeScript, HTML5) for full-stack candidates.
• Cloud experience (GCP/AWS) for deployment and management.
• Messaging systems (REST APIs, MQ/Solace).
• In-memory data stores (Redis, Hazelcast, or similar).
• Automation tools (Ansible, scripting).

We offer:

• Hybrid work from Kraków
• A full-time contract with possibility to choose the form of employment (UoP/B2B)
• Stable and long-term cooperation
• Support of a dedicated manager and Career Managment team
• A clearly defined career path and the possibility of development in four areas as: Project Manager, Business Manager, Technical Leader and a specialist in their field.
• Participation in company conferences, trainings, workshops, integration meetings, etc.
• Certification and training opportunities
• Opportunity to relocate and work in different ALTEN Polska branches
• Medicover medical care
• Medicover Benefits platform / Medicover Sport card
• Employee referral program
• Layette for a newborn employee’s child
• Group life insurance

NOTICE: We kindly inform you that we will contact the selected candidates.