Senior Java Software Developer

Strength. Care. Growth

A1 Competence Delivery Center is a vital component of A1’s telecommunications business. Acting as an expertise hub, CDC is dedicated to delivering a full range of high-quality IT, network, financial and other services to support A1’s operations across all OpCos, independent of location.

Using the power of being OneGroup and leveraging synergies, CDC enables transparency of resources, key skills and knowledge expansion and personal career growth opportunities’ enhancement, paired with job stability.

You will know we are the right place for you, if you are driven by:

• Opportunities to learn and build your career.
• Meaningful work in a stable and fast-paced company.
• Diversity of people, projects, and platforms.
• A supportive, fun, and inspiring place to work.

Role Overview

We’re looking for a Senior Java Engineer to build and optimize customer-facing software. You’ll design and implement REST APIs, ensure code quality, contribute to Agile processes, and drive improvements through code reviews, estimations, and new technology adoption.

Role Insights:

• Discovering, evaluating, and implementing new technologies to maximize development efficiency.
• Preparing estimates for new features.
• Participating in the development of customer-facing software products.
• Taking responsibility for code quality and on-time completion of tasks.
• Initiating improvements and following the adopted Agile development methodology.
• Participating in peer code reviews and SCRUM meetings.

What Makes You Unique:

• Solid technical background in Java (5+ years).
• Deep understanding of REST APIs with Spring and Hibernate.
• Strong knowledge of algorithms, complexity, design, and architectural patterns.
• Experience with Jira and version control systems (e.g., Git).
• Good understanding of Maven, Gradle, JUnit.
• Knowledge of Docker and Kubernetes.
• Extended database expertise (Oracle, MongoDB, Redis).
• Advantage: experience with Go, Node.js, Quarkus, Struts, JSP.
• Fluent English, written and spoken.

Our gratitude for the job done will be eternal, but we’ll also offer you:

• Innovative technologies and platforms to work with.
• Modern working environment for your comfort.
• Friendly, ambitious, and motivated teammates to support each other.
• Thousands of online and in-person learning opportunities for you to grow.
• Challenging assignments and career development opportunities in multinational environment.
• Attractive compensation package.
• Hybrid working model.
• Numerous additional benefits, including, but not limited to free A1 services.

Sounds good? Apply now!

Deadline for application: 23.10.2025

Only shortlisted candidates will be contacted.