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Avenga

Principal Java Engineer

Avenga
Ukraine · Full-time · Mid-Senior

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 UI design, managed services, product development, and software development.

This is the job

We are looking for a Principal Engineer to develop and implement functional software solutions, working with teams to enhance our technology. This role covers the full software development lifecycle—from requirement analysis and secure software development to post-launch support. The ideal candidate has strong problem-solving skills, hands-on experience in software development, and proficiency in agile methodologies. Independence and knowledge-sharing within the team are essential.

Our client is a global leader in digital gaming solutions for lotteries, empowering organizations to engage new players, expand their brands, and achieve sustainable growth.

This is you

  • 7+ years of proven experience with Java, including Java 17 or Java 21, and at least one Java framework (preferably Spring Boot 3.2 — 3.4) along with an ORM framework (Hibernate);
  • Strong RDBMS skills, including PostgreSQL—design, implementation, and migration, working with large-scale production data;
  • Experience in implementing REST APIs for microservices architecture;
  • Excellent understanding of concurrency in Java and multi-threading principles;
  • Understanding of distributed computing principles and challenges;
  • Experience with OAuth for authentication and authorization.
  • English level — Upper-intermediate.

Nice-to-have skills:

  • Experience with K8S;
  • Experience with at least one of the major cloud providers (e.g., AWS, GCE, Azure);
  • Experience in Automated testing (functional tests and integration tests) and CI/CD;
  • Experience with JVM languages other than Java;
  • Demonstrated ability to write Unit tests using JUnit or Spock;
  • Good understanding of front-end technologies and frameworks;
  • Event-driven architecture.

This is your role

  • Develop high-quality software design;
  • Identify, prioritize, and execute tasks in the software development life cycle;
  • Develop tools and applications with clean, maintainable, and secure code and guide the rest of the team in doing so;
  • Demonstrate excellent RDBMS skills (design, implementation, migration) working with large amounts of data in production systems;
  • Conduct code reviews and provide feedback to help the team keep the code quality high;
  • Review and debug code;
  • Implement REST APIs;
  • Deploy and maintain development & production systems.

What awaits you at Avenga?

Through our values, Better Minds, Bolder Ideas, and Bigger Hearts, we strive to provide you with the tools, autonomy, trust, and assistance you need to excel. Enjoy benefits like private health insurance, well-being programs, flexible and hybrid work models, laptops and gear, training, language classes, social events, great offices, and more.

We take pride in the diverse skills and character of our teams, welcoming everyone to apply and contribute to our collective strength.

Key Skills

Ranked by relevance

java distributed computing microservices spring boot oauth cloud excel junit aws jvm ui ux
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Posted
Jul 26, 2025
Type
Full-time
Level
Mid-Senior
Location
Ukraine
Company
Avenga

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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