Senior Software Engineer, Java

Zartis

Senior Software Engineer developing cloud-native microservices for the travel technology industry at Zartis. Involved in modernising a complex travel technology platform with a focus on AI-driven tools.

Posted 6/24/2026full-time🇪🇺 Anywhere in EuropeSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudDockerGradleJavaJenkinsKafkaMicroservicesSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Develop and modernise backend services, helping migrate functionality from a legacy JBoss monolith to microservices.
Build event-driven integrations using Kafka and Spring Cloud Stream.
Design and maintain REST APIs and integration layers between legacy and modern systems.
Deploy and manage containerised applications using Docker and AWS ECS.
Contribute to CI/CD improvements using Jenkins and Gradle to accelerate delivery.
Participate in code reviews and promote engineering best practices.
Collaborate with distributed teams to deliver scalable, high-quality solutions.
Act as an AI champion, supporting the adoption of AI-assisted development tools and best practices.

Requirements

What you’ll need

6+ years of experience in backend Java development.
Experience with Spring Boot, microservices, and event-driven architectures.
Knowledge of Kafka or similar messaging technologies.
Familiarity with Docker, AWS ECS, and cloud-native environments.
Experience with CI/CD pipelines, Jenkins, and Gradle.
Proven experience working with legacy systems and modernisation initiatives.
Strong communication skills and experience collaborating in distributed teams.
Experience using AI-assisted development tools such as GitHub Copilot, Claude, or similar.

Benefits

Comp & perks

100%Remote Work
WFH allowance: Monthly payment as financial support for remote working.
Career Growth: We have established a career development program accessible for all employees with a 360º feedback that will help us to guide you in your career progression.
Training: For Tech training at Zartis, you have time allocated during the week at your disposal. You can request from a variety of options, such as online courses (from Pluralsight and Educative.io, for example), English classes, books, conferences, and events.
Mentoring Program: You can become a mentor in Zartis or you can receive mentorship, or both.
Zartis Wellbeing Hub (Kara Connect): A platform that provides sessions with a range of specialists, including mental health professionals, nutritionists, physiotherapists, fitness coaches, and webinars with such professionals as well.
Multicultural working environment: We organize tech events, webinars, parties, and activities to do online team-building games and contests.

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Hard Skills & Tools

JavaSpring Bootmicroservicesevent-driven architectureREST APIsDockerAWS ECSCI/CDJenkinsGradle

Soft Skills

communicationcollaborationengineering best practices