Role Description

We are still looking for the very Top Talent…and we would be delighted if you were to join our team

More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35,000 employees all over the world and presence in more than 35 countries. We are leaders in digital technology services, providing large-scale technological solutions to leading general organizations.

What we look for?

We are currently looking for a Senior Developer (Java & Kafka) to join an exciting international project within a highly collaborative Agile environment.

A passionate and experienced software engineer with strong expertise in Java microservices architectures and Apache Kafka, eager to contribute to high-impact projects while working with modern technologies and best development practices.

Key Responsibilities

Design, develop, and maintain scalable microservices-based applications.
Develop and optimize event-driven architectures using Apache Kafka.




Apply software design principles and best practices to ensure high-quality solutions.
Implement and maintain applications using Java 8+ and Spring Boot.
Participate in code reviews, testing strategies, and continuous improvement initiatives.
Collaborate closely with cross-functional Agile teams.
Contribute to software architecture decisions and technical designs.
Participate in the team's rotational 24/7 on-call support schedule (approximately one week every 3-4 months).

Mandatory Requirements

Minimum 4 years of experience in a similar role.
Minimum 4 years of professional experience working with Apache Kafka.
Strong experience with:
Java 8+
Spring Boot
Spring Framework
Microservices architecture
Functional Programming
JPA
Software Design
Testing methodologies (TDD and/or BDD)
Experience with relational and NoSQL databases such as:
PostgreSQL
Oracle
MongoDB
Knowledge of Agile methodologies, especially Scrum.
English level B2 or higher.
Availabi

📌 Java Developer (Madrid)
🏢 Ust
📍 Madrid