We are looking for a Mid-Level Java Developer to join an innovative project focused on Intent-Based Networking (IBN) for industrial telecommunications.

You will work closely with the Software Architect, contributing to the design, development, and evolution of a next-generation networking platform operating in converged OT/IT environments. This is an excellent opportunity to join an international R&D; environment and be involved in the development of cutting-edge technology solutions.

? Your day-to-day

- Develop and maintain backend services and applications using Java.
- Collaborate closely with the Software Architect in implementing architectural decisions and technical solutions.
- Participate in the design and evolution of a scalable and robust networking platform.
- Translate functional and technical requirements into high-quality software solutions.
- Contribute to software design discussions and technical problem-solving activities.
- Develop clean, maintainable, and well-documented code following best practices.
- Participate in code reviews and contribute to continuous improvement initiatives.
- Work within agile and multidisciplinary teams in an international environment.
- Support the integration of networking and industrial communication functionalities.

? What does our recruitment process look like?
- Initial conversation with the Talent Acquisition team.
- Technical interview focused on Java development experience.
- Technical discussion with the Architect and Engineering team.
- Final offer and onboarding.

​ ✨ What are we looking for?





- 3+ years of experience in Java development.
- Strong knowledge of Java and Spring Boot.
- Experience developing REST APIs and backend applications.
- Understanding of software architecture principles and distributed systems.
- Ability to work autonomously while collaborating with senior technical stakeholders.
- Experience working in Agile environments.
- Strong problem-solving and analytical skills.
- Good communication skills and willingness to participate in technical discussions.
- English professional level (mandatory).

​ ? What do we offer?? Permanent contract with Abylsen.

? Hybrid work model within Madrid or Barcelona.

⏰ Adaptable working hours.

? Private health insurance.

? Access to training and certification platforms.

? Professional growth within innovative international R&D; projects.

? Collaborative, multicultural, and technology-driven environment.

​ HOUSE OF ABY : a unique playground for our talents !

The HOUSE OF ABY Group brings together 10 complementary brands within a single ecosystem, covering a variety of sectors such as aeronautics, digital, nuclear, pharmaceuticals and railways. This diversity makes HOUSE OF ABY a true professional playground,



offering our consultants and Business Partners the opportunity to evolve in environments, professions and projects with multiple challenges.

Thanks to this multi-brand organisation, everyone can build a tailor-made career path, develop their expertise, explore new areas and work on high value-added projects, while benefiting from the strength and synergies of a structured Group.

Joining HOUSE OF ABY means becoming part of a dynamic Group that trusts its teams and gives them the means to perform, grow and succeed.

✅ ABYLSEN is an engineering consulting company that supports its clients in delivering technological projects through expert consultants. Its mission: to bring expertise, innovation and execution capability.

For over 20 years, Abylsen has established itself as a major engineering consulting player in Europe. It supports more than 660 clients in their industrial, digital and operational projects.

Area of expertise :

- R&D;
- Production & operations
- Digital & IT
- Industrialisation
- Validation & testing
- Maintenance & safety

Sectors: ⚡ Energy ✈️ Aerospace, Space & Defence ? Automotive ? Life Sciences ?️ Construction & Infrastructure ? Heavy Industry ? IT & Telecommunications ? Banking, Finance & Insurance Equal opportunities

- No barrier should hold back talent ! Dedicated to equal opportunities, our Group embraces an inclusive approach: every position is open to all, and we actively support the integration of people with disabilities.

📌 Backend Java Developer (Barcelona)
🏢 House of ABY
📍 Barcelona