T-Mobile
Senior Java Developer (m/f/d) - project Atlas
Skills
4 days ago
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Important information
Location:
Košice, Czechia
Work mode:
Onsite
Published on:
16 October 2026
What they need
Job ID: 744000129113659
Senior Java Developer (m/f/d) - project Atlas
Košice
Professional
Regular
Deutsche Telekom IT and Telecommunications Slovakia
Your Task
As a Backend Developer, you will be responsible for creating high-quality business-oriented applications, which focus on orchestration and automation of radio network planning and building processes. The project involves developing and maintaining microservice applications using the Java, Spring framework and its deployment to AWS environment. You will closely cooperate with solution designer and business owners of solution. This role demands a comprehensive understanding of Java, Spring framework, REST practices and requires a proactive approach to problem-solving, a keen eye for detail, and a commitment to staying updated with the latest industry trends and best practices.
Responsibilities
- Design, develop, and maintain complex microservices using one of above mentioned frameworks
- Ensure code quality and maintainability by conducting code reviews and writing unit and integration tests
- Participate in daily stand-ups, sprint planning, and retrospective meetings
- Identify and resolve performance bottlenecks to ensure the application runs efficiently
- Provide technical guidance and mentorship
- Lead code reviews and ensure adherence to best practices and coding standards
- Create and maintain technical documentation for reference and reporting purposes
- Update technical documentation
- Share regular progress reports and updates
Your Profile
We are looking for a Backend Developer with strong proficiency in Java and Spring Boot, experience with RESTful APIs, database management, and excellent problem-solving abilities to develop and maintain microservice applications in an AWS environment.
Must Have Skills
- Proficiency in Java
- Proficiency in Spring Boot
- Strong understanding of RESTful APIs and integration
- Experience with SQL databases (MySQL, H2)
- Experience with version control systems (Git)
- Excellent problem-solving skills
- Excellent attention to detail
- Strong communication abilities
- Strong teamwork abilities
- At least a basic understanding of Camunda
About Us
Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and ever since has been inextricably linked with the region when became one of the founding members of Košice IT Valley. We have managed to grow from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into the type of company providing innovative information and communication technology services.
Benefits
The company offers over 25 different benefits to improve employees' personal and professional life in the following areas:
- Financial benefits
- Benefits with focus on learning and development
- Benefits with focus on health and sport
- Benefits with focus on family and work-life balance
- Other benefits
For more information about benefits: Benefits
Salary: 3,100 - 3,700 EUR / brutto
Base salary is offered depending on seniority level and previous experience of candidate. In addition to base salary, the company provides variable part and other financial benefits. Base salary will not be lower than 3,100 EUR /brutto.
Company Policies
- Remote working possibility is only available within Slovakia due to European taxation regulation
Job Benefits
Lifestyle & Wellness
Benefits with focus on health and sport (over 25 different benefits available)
Professional Development
Benefits with focus on learning and development (over 25 different benefits available)
Financial
- Salary 3100 - 3700 EUR/brutto (base salary depending on seniority level and previous experience)
- Variable part in addition to base salary
- Other financial benefits
Work-Life Balance
- Attractive and extensive work-life balance portfolio
- More freedom in reconciling work, career growth, private life and individual lifestyle
- Remote working possibility (available within Slovakia)
Family & Personal
Benefits with focus on family and work-life balance (over 25 different benefits available)
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