Middle Java Engineer (Kotlin)
Your journey matters – start it with us
This is us
At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development.
This is the job
We are looking for Middle Java Engineer with strong knowledge in Java and Kotlin, available for minimum 50%. The goal is to build a unified, scalable ads platform. We are transforming a long-standing business application into a modern technology stack. Our goal is to build a modular monolith designed for scalability and future microservices separation. We follow hexagonal architecture and Domain-Driven Design (DDD) principles to ensure clean, maintainable solutions.
This is you
A Middle Java Engineer with 3–5 years of professional experience
Strong knowledge of JVM technologies, including modern Java and modern Kotlin
Experience in AdTech, ideally with DSP (Demand-Side Platform) development
Good communication skills and a proactive approach English level: Upper-Intermediate
Nice-to-have skills:
Previous experience working with high-load systems
Understanding of system design principles
Familiarity with cloud platforms
Experience collaborating with Senior, Principal Engineers, or Architects Ability to work in fast-paced and dynamic environments
This is your role
Contribute to the development and optimization of AdTech solutions
Work with modern Java/Kotlin within JVM-based architectures
Collaborate closely with senior engineers, tech leads, and architects
Participate in technical discussions, propose solutions, and improve system performance
Ensure high-quality code delivery and follow best engineering practices
At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others.
- Locations
- Valencia
- Remote status
- Fully Remote
- Profile
- Engineering
- Seniority
- Mid-level
- Technology
- Java
Your way in starts here
APPLICATION
Send us your application, we are ready to hear your story and explore how we can grow together.
REVIEW
Our team carefully reviews every application with curiosity and care. If your profile isn’t the right fit today, we will keep it in mind for future opportunities that match your skills and ambitions.
TALENT ACQUISITION INTERVIEW
You will meet our Talent team to talk about your goals and learn more about who we are, what we offer, and how we support our people.
TECHNICAL INTERVIEW
Our tech interview is all about diving deeper into your expertise and understanding your strengths, how you solve problems, and how you think – no trick questions, just a meaningful conversation.
CUSTOMER INTERVIEW
For some roles, especially when our clients are closely involved, you might also have a conversation with them – it’s a chance for everyone to align and get to know each other better.
JOB OFFER
If we both feel it’s the right match, we will send you an offer to join us. And even if it’s not the time just yet, you’ll always hear back from us.
WELCOME!
Your new team is excited to meet you, support you, and build something great together. Let’s make your first day the start of a journey that shapes a career that matters.
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