Application developer 


Location: Košice, Slovakia

Company: Deutsche Telekom Group


General description

  • Develops new and maintains existing source code of applications
  • Works in SCRUM team on developing and building midsize and complex applications for customer usage
  • Serves as professional mentor for junior developers

For our projects, we are hiring developers within preferred technology stacks (Front end, Back end, Full stack):

  • Tech. stack 1: Java, Spring Boot
  • Tech. stack 2: Angular, React, VueJS
  • Tech. stack 3: .NET, C#

Additional preferred knowledge/experience (as an advantage): any testing tool/framework, Kubernetes, Docker, Microservices, Git, cloud technologies (AWS, Azure..), DB…


  • Listen to user requests, consult with customers, project managers, assist in gathering requirements for preparation of application detailed feature specification as necessary basis of quality and functional application
  • Analyze customer’s requirements and propose overall application / framework design of midsize application architecture (incl. interfaces, relation database structure), provide 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
  • Provide project estimates, timeline for total development effort and bug fixing and report it to customer for budget planning in advance
  • Implement customer’s requirements based on specification in selected object oriented programming language into functional and user friendly application to meet customer’s needs
  • Provide testing of programmed functionality before deployment in order to avoid bugs and ensure quality of code
  • Write and update regularly complex technical / system documentation for official handover to operation process, also create analytical documentation incl. UML for other programmers and customer
  • Communicate project status and deliverables to managers, customer with efficiency and accuracy of any progress or delays to keep them informed and let them be ready for managerial decision and project’s adjustment in advance
  • Maintain application on 2nd, 3rd level support by fixing bugs and regular check, programming updates of features on customer’s change request to satisfy customer needs and to ensure smooth running of the application with added value
  • Perform deploy on infrastructure, backup and restore procedures, handle release management in order to provide regular upgrades of software to have up to date features implemented according to agreement with customer


  • University degree (minimum Bachelor)
  • Experience within the field of application programming in object oriented programming languages, experience with agile software development methodology (e.g. Scrum)
  • English B2
  • German language is advantage


  • Possibility of Teleworking or Home office
  • Cafeteria - individual financial benefit
  • Trainings and development opportunities (Coursera, Percipio full access for free)
  • Pension savings contribution
  • Extra vacation days
  • Referral bonus /financial/
  • Discounts at various providers in Košice
  • Team buildings online
  • Work-life Program and Coaching
  • Health Weeks
  • Sport Activities
  • Weekend Events
  • Doctors at workplace
  • Credit card
  • Rotations possibilities



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 2000 € /brutto.

Open position:  Application developer 

Position announcer: Deutsche Telekom IT & Telecommunications Slovakia s.r.o.

If you have any questions or would like to know more about this position, please contact us.