Senior Java Developer (Kafka) - Remote

Ust España & Latam; Barcelona; Híbrido; EUR 65.000 - 95.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health Care Plan

Internet Connectivity

Life and Accident Insurances

Flexible Compensation Program

Descripción de la vacante

UST es una empresa multinacional que busca un Senior Developer (Java & Kafka) para un proyecto internacional en un entorno Agile colaborativo. El candidato ideal diseña, desarrolla y mantiene microservicios basados en Java y Kafka, aplicando buenas prácticas y participando en revisiones y pruebas para garantizar soluciones de alta calidad.

Se requiere mínimo 4 años de experiencia en Java, Spring Boot y Kafka, experiencia en bases de datos relacionales y NoSQL, y nivel de inglés B2 o superior.

Formación

• Mínimo 4 años de experiencia en un rol similar.
• Experiencia mínima de 4 años trabajando con Apache Kafka.

Responsabilidades

• Diseñar, desarrollar y mantener aplicaciones escalables basadas en microservicios.
• Desarrollar y optimizar arquitecturas orientadas a eventos con Apache Kafka.
• Aplicar principios de diseño de software y buenas prácticas para soluciones de alta calidad.
• Implementar y mantener aplicaciones con Java 8+ y Spring Boot.
• Participar en revisiones de código, pruebas y mejoras continuas.
• Colaborar estrechamente con equipos ágiles multifuncionales.
• Contribuir a decisiones de arquitectura y diseño técnico.
• Participar en el calendario rotativo de soporte 24/7 (aprox. una semana cada 3-4 meses).

Conocimientos

Java 8+

Spring Boot

Spring Framework

Microservices

Functional Programming

JPA

Software Design

Testing (TDD/BDD)

Descripción del empleo

Descripción del trabajo

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 global 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 .
• Availability to participate in a rotational 24/7 on-call support schedule .

Nice to Have:

• Knowledge of Reactive Programming.
• Experience with API design and specification standards (OAS3/OpenAPI).
• Additional technical skills or experience that can bring value to the project.
• Experience working in complex enterprise environments.

What can we offer?

• 23 days of Annual Leave plus the 24th and 31st of December as discretionary days!
• Numerous benefits (Health Care Plan, Internet Connectivity, Life and Accident Insurances).
• Flexible Compensation Program (Meals, Kindergarten, Transport, Online English Lessons, Health Care Plan, and more).
• Free access to several training platforms.
• Professional stability and career development plans.
• Referral Program with attractive rewards for successful referrals.
• The option to choose between 12 or 14 salary payments per year.
• Real Work-Life Balance measures (flexibility, remote work options, summer hours, and more).
• UST Club Platform discounts and gym access discounts.

At UST, we are committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation, or nationality. We have a special commitment to Disability & Inclusion and actively encourage applications from candidates with disability certificates