Spring Boot Jobs in Madrid.
All active Spring Boot roles based in Madrid.
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• Diseñar, desarrollar y mantener APIs REST y microservicios backend en entornos de pagos digitales.
• Implementar nuevas funcionalidades y evolucionar servicios existentes relacionados con tokenización, autenticación en e-commerce y lectura de códigos QR.
• Analizar requerimientos técnicos y funcionales, proponiendo soluciones viables junto al equipo de desarrollo y arquitectura.
• Colaborar de forma activa con equipos de frontend, arquitectura y otros sistemas del entorno bancario.
• Escribir, mantener y ejecutar pruebas automatizadas (unitarias, integración y end-to-end) asegurando la calidad del software.
• Participar en revisiones de código y en procesos de certificación de soluciones con marcas de pago.
• Experiencia mínima de 4 años como Backend Developer.
• Experiencia sólida en desarrollo con Java y Spring Boot.
• Experiencia en diseño y construcción de APIs REST y servicios backend.
• Conocimiento práctico de arquitecturas de microservicios.
• Experiencia con Git y control de versiones.
• Experiencia en proyectos gestionados con Maven.
• Conocimientos en testing automatizado: unitarios, integración y E2E (JUnit, Mockito u otros).
• Experiencia trabajando con metodologías ágiles (Scrum, Agile, Kanban).
• Experiencia desarrollando con Kotlin.
• Experiencia trabajando en entornos cloud, preferiblemente AWS.
• Conocimiento de entornos bancarios o plataformas internas.
• Conocimientos en bases de datos, preferentemente Oracle.
• Experiencia en sistemas de pagos o procesos de certificación con marcas.
• Conocimientos en Python.
• Experiencia en el uso de herramientas basadas en IA para el desarrollo de software.
• Modalidad flexible y posibilidad de trabajo remoto.
• Plan de carrera personalizado y formación continua
• Participación en proyectos estables con alto componente técnico.
• Flexibilidad horaria y enfoque en la conciliación.
• Beneficios sociales adaptados a tus necesidades
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Ready to apply?
Apply to NEORIS
Join Vonage and help us innovate cloud communications for businesses worldwide!
Why this role matters:
We’re seeking a Java Software Engineer to join our Cloud Engineering team and help drive innovation across the Vonage Video Platform. This role will focus on enhancing our PaaS backend systems, improving cloud resource control and provisioning, and contributing to scalable architecture design and distributed computing solutions.
As part of the team, you’ll contribute to both new feature development and backend system improvements, with a strong focus on quality, fault tolerance, and performance. You’ll gain hands-on experience with real-time communications, and use data to help improve how we build and scale our services.
This is a great opportunity to grow your skills by working on large-scale, highly available systems alongside a team of experienced engineers who are passionate about cloud infrastructure, media technologies, and real-time communication.
Your key responsibilities:
- Hands-on software development and system design.
- Implement new features for the cloud based API Gateway, Media Control and Signaling systems for the Vonage Video Platform.
- Contribute to software architectures for a highly distributed network application, resource optimization strategies, and real-time stream/message processing.
- Design and develop approaches to measure, evaluate and improve service quality.
- Collaborate on projects involving signalling fabric and coordinate with other teams.
- Embed AI assisted engineering into daily practice to accelerate delivery and enhance outcomes
- Proactively adopt emerging AI capabilities to improve workflows and shares best practices with the team
What you'll bring:
- Strong Java 17 coding skills, and willingness to learn more languages.
- JavaScript, and experience with HTML5 APIs all across different browser engine APIs in general.
- Understanding regarding memory management, garbage collection, concurrency.
- Excellent debugging and problem solving skills.
- Good understanding of algorithms, data structures.
- Track record of delivering high quality code in a fast-paced environment.
Experience we consider a plus:
- Proficiency in the Netty framework for high-performance network programming.
- Strong experience with Spring Boot for building scalable and robust APIs.
- Hands-on expertise with message brokers such as Apache Kafka, ZeroMQ, RabbitMQ, or similar queueing systems.
- Working knowledge of Redis, Kubernetes, Helm, Docker, AWS, and ElastiCache for cloud-native and distributed systems.
- Experience with CI/CD pipelines using Jenkins or equivalent tools.
- Familiarity with Go programming language.
- Understanding of communication technologies, protocols, and standards such as VoIP, SIP, H.323, XMPP, etc.
#LI-JM1
There’s no perfect candidate. You don't need all the preferred qualifications to make a valuable impact on our team. Our employees and customers come from diverse backgrounds, so if you're passionate about what you could achieve at Vonage, we'd love to hear from you.
To learn how we process your personal data during the recruitment process, please refer to our Privacy Notice.
Who we are:
Vonage is a global cloud communications leader. And your talent will further help brands - such as Airbnb, Viber, WhatsApp, and Snapchat - accelerate their digital transformation through our fully programmable-based unified communications, contact center solutions, and communications APIs. Ready to innovate? Then join us today.
Note: The purpose of this profile is to provide a general summary of essential responsibilities for the position and is not meant as an exhaustive list. Assignments may differ for individuals within the same role based on business conditions, departmental need or geographic location.
Ready to apply?
Apply to Vonage
We are not just looking to fill positions. We aim to bring in talent that strives to improve, continuously learn, and leave a mark on every project. We are a diverse, inclusive team in constant evolution. We promote ideas, not hierarchies. We are committed to the real development of each individual. If you want to work in a place where your growth matters as much as results, we are looking for you.
Backed by more than 60,000 professionals in over 55 countries and a robust Nearshore model, we connect global capabilities with local trust to deliver real impact, sustainable growth, and high‑value results for our clients.
We are currently looking for a: Java SR Developer
Job role:
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Design, develop, and maintain backend solutions based on Java and microservices architectures.
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Build and evolve RESTful APIs with a focus on scalability, performance, and reliability.
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Collaborate with product owners, architects, and other developers to define technical solutions.
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Apply clean code principles, best practices, and design patterns in daily development.
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Participate in code reviews to ensure high-quality standards.
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Troubleshoot, debug, and optimize backend services in production environments.
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Contribute to technical decisions and continuous improvement initiatives.
Requirements:
- Solid experience as a Senior Java Backend Developer.
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Strong knowledge of Java and Spring Boot with microservices architectures.
- Strong ability to quickly grasp new concepts and adapt to changing situations.
- Dependable individual, who takes ownership of tasks and responsibilities.
- Analytical and solutions-focused mindset
- Advanced English
- Availability for weekend and holiday shifts
What we offer:
- Permanent contract with competitive salary.
- Personalized career path and continuous training (certifications, English courses, etc.).
- Participation in stable projects with a strong technical focus.
- Flexible schedule with an emphasis on work–life balance.
- Benefits package tailored to your needs.
Learn more about us at http://www.neoris.com, Facebook, LinkedIn, Twitter o Instagram: @NEORIS.
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Ready to apply?
Apply to NEORIS