Senior Fullstack Developer (m/f/d) Java and JavaScript

Job ID: 744000130042910

Senior Fullstack Developer (m/f/d) Java and JavaScript

Juh

Professional

Regular

Deutsche Telekom IT and Telecommunications Slovakia

Your Task

The Senior Application Developer (Agile) is responsible for developing new and maintaining existing source code of applications in programming languages like Java, ASP.Net or C# based on requirements of internal or external customers. These applications support automation of business processes. The role focuses on the continuous development and enhancement of the internal Telekom application VIS-Tool (Vertragsbestands-Informations-System), with emphasis on modular expansion and automation of order request processes within the CVS/CPS environment, replacing manual Excel-based workflows with a modern, web-server-based architecture to enable faster, more efficient, and error-free contract and product processing.

Team / Project Description

The VIS-Tool is a business-critical internal application supporting multiple Telekom business units in managing framework contracts and product orders. The development team works in an agile, cross-functional setup, collaborating closely with business stakeholders, system interfaces, and internal microservices to deliver reliable and scalable process automation solutions.

Responsibilities

• Continuously develop and enhance the VIS-Tool application in an agile environment
• Design and implement modular extensions to automate order request processes (Abrufaufträge) in the CVS/CPS landscape
• Replace manual, Excel-based workflows with scalable, web-based solutions
• Implement functional changes across multiple application modules
• Develop backend and frontend components using Java, JavaScript, and SQL with Oracle databases
• Design technical solutions at module and component level within existing system architectures
• Integrate VIS-Tool with internal microservices, contract systems, and master data sources
• Provide technical consulting and advisory support to business stakeholders
• Collaborate closely with developers, analysts, and business teams in cross-functional agile setups
• Contribute to technical documentation and overall system transparency
• Support the stability, maintainability, and continuous improvement of the application

Your Profile

We are looking for a Senior Application Developer (Agile) with strong software engineering experience in enterprise application environments, advanced proficiency in Java, JavaScript, and SQL/Oracle DB, and proven experience working in agile development environments with a focus on business process automation.

Must Have Skills

• Strong software engineering experience in enterprise application environments
• Advanced hands-on development experience with Java
• Advanced hands-on development experience with JavaScript
• Advanced hands-on development experience with SQL/Oracle DB
• Experience working in agile development environments
• Solid understanding of business process automation
• Solid understanding of software modularization
• Ability to analyze, design, and implement solutions within existing architectures
• Comfortable implementing small to medium functional changes across multiple modules
• Structured, solution-oriented, and analytical working style
• Clear communication skills with both technical and business stakeholders
• Ability to work in cross-functional teams and collaborative environments

Nice to Have Skills

• Experience with telecom systems or contract-based process environments
• Exposure to project management methods or coordination roles
• Experience with workflow-driven applications integrating multiple interfaces
• Business-facing consulting or advisory experience

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

We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees and thus a better quality of life, promotes physical and mental well-being and contributes to a positive work environment. All this with the aim of providing more freedom in reconciling work, career growth, private life and individual lifestyle. Therefore we offer to our employees over 25 different benefits to improve their personal and professional life in these 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 our benefits

Salary:

Final salary is negotiable.

We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than €3,100 gross.

Company Policies

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

Job Benefits

Work-Life Balance

• Remote work (within Slovakia)
• Attractive and extensive work-life balance portfolio

Professional Development

Benefits with focus on learning and development

Family Support

Benefits with focus on family and work-life balance

Lifestyle & Wellness

• Benefits with focus on health and sport
• Over 25 different benefits available

Financial

• Base salary not lower than €3,100 gross
• Variable compensation component
• Additional financial benefits