Senior Application Developer (m/f/d) Java Spring Boot

Job ID: 744000129942075

Senior Application Developer (m/f/d) Java Spring Boot

Košice

Professional

Regular

Deutsche Telekom IT and Telecommunications Slovakia

Your Task

This position involves developing new and maintaining existing applications in Java Spring Boot based on requirements of internal or external customers. You will be part of a B2B IT organization operating within an agile release train "Voice & Partner Products Provisioning". The final product enables the decomposition of product orders into service orders and the allocation and provisioning of underlying resources.

Your work will involve developing solutions such as virtual cloud-based Private Branch Exchanges (PBXs) and provisioning Over-The-Top (OTT) services like WebEx, Microsoft Teams, Zoom, and more. Additionally, you will contribute to integrating these platforms into the comprehensive Deutsche Telekom products for business customers in Germany.

You will join a newly established, cross-functional Scrum team based in Košice. The team is committed to fostering a strong DevOps culture under the motto: "We build it, we run it." In this team, you will enjoy broad access to modern technology stack with freedom to choose, empowering you to make independent decisions while expecting a high level of ownership and commitment to delivery.

The team primarily works remotely, with in-person meetings required for sprint demos, planning, and retrospectives (typically every two weeks for 1 day in the offices in Košice), as well as Program Increment (PI) planning sessions held approximately every 3–4 months for 3 days locally or abroad.

Responsibilities

• Analyze customer's requirements and propose overall application architecture including interfaces (e.g. REST API OAS), relation/document database structure, use of native cloud development approach
• Perform complex business analysis in order to build application functionality easy for maintenance and future extension according to customer needs as business intelligent solution that implements business processes in automated form
• Develop backend applications or microservices according to stories definition in chosen programming language (primarily Java Spring Boot or another Java application development framework)
• Participate in application modernization, refactoring and decomposing of application from monolith to microservice architecture according to enterprise architecture guidelines
• Develop and run automated tests on various application levels, provide testing of programmed functionality before deployment in order to avoid bugs and ensure quality of code
• Write and update complex technical system documentation and business logic documentation (e.g. UML)
• Maintain application and support bug fixing
• Prepare GitLab CI/CD pipelines with DevOps engineers cooperation
• Perform deployments on cloud infrastructure and handle release management in order to provide regular upgrades of software
• Prepare and perform data migrations
• Contribute to knowledge base of developers
• Make proposals for optimization of processes
• Proactively manage problem solving and root cause analysis
• Mentor junior/medior developers

Your Profile

We are seeking a Senior Java Developer with expert-level Java Spring Boot experience, strong knowledge of complex application landscapes, cloud technologies, and modern development practices. The ideal candidate should have extensive experience with microservices architecture, database technologies, and DevOps practices, along with excellent communication and analytical skills.

Must Have Skills

• 5 years of experience with complex application landscape
• Expert-level programming experience with Java Spring Boot
• Experience with MapStruct
• Experience with Lombok
• Experience with Liquibase
• Experience with Open API generator
• Experience with WireMock
• Experience with GIT
• Experience with Maven build tools
• Experience with Gradle build tools
• Experience with UML
• Experience with SQL databases (PostgreSQL)
• Experience with NoSQL databases (MongoDB, FireStore)
• Experience with one of the following clouds: AWS, GCP, or Open Telekom Cloud
• Experience with REST API communication
• Experience with message based communication
• Experience with API first approach
• Experience with SCRUM software development methodology
• Experience with JIRA
• Strong communication skills
• Team player
• Analytical thinking
• Upper intermediate (B2) level English proficiency

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

• Salary: 3,100-3,700€ /brutto
• Variable compensation component in addition to base salary
• Additional financial benefits
• Extra 2 days off
• Various discounts on products and services (Internet, mobile services, etc.)
• Home office/Telework – from the territory of the Slovak Republic and selected EU countries
• Over 25 different benefits across multiple categories:
  • 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

Company Policies

• Remote working possibility is only available within Slovakia due to European taxation regulation

Job Benefits

Financial

• Salary 3100-3700€ /brutto (base salary depending on seniority level and previous experience)
• Variable part in addition to base salary

Work-Life Balance

• Extra 2 days off
• Home office/Telework from the territory of the Slovak Republic and selected EU countries

Lifestyle & Wellness

Various discounts on products and services (Internet, mobile services, etc.)

Professional Development

Over 25 different benefits with focus on learning and development