Senior Java and Kotlin Engineer
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 Senior/Principal 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
Strong experience with modern Java & Kotlin
Expertise in REST APIs and various authentication workflows (key-based, OAuth)
Knowledge of relational (PostgreSQL preferred) and non-relational databases (MongoDB preferred)
Cloud development skills (GCP preferred)
Experience with Docker, Kubernetes (nice to have)
Familiarity with ETL processes, large data volumes, and streaming (Kafka or similar)
Ability to build scalable, high-performance services in a cloud environment
Experience integrating with Meta and TikTok (nice to have)
AdTech experience is a strong asset
English on C1 level
This is your role
Work with modern Java (17+) and Kotlin
Collaborate on refactoring legacy code with a focus on quality and maintainability
Write clean, testable code following SOLID and Clean Code principles
Create and maintain unit and integration tests
Cooperate with the front-end team to define API contracts
Share knowledge within a team of 4 back-end developers and take ownership of your work
What awaits you at Avenga?
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
- Multiple locations
- Remote status
- Hybrid
- Profile
- Engineering
- Seniority
- Senior-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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