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Core Network Solutions Engineer - part time (f/​m)

T-Mobile Czech Republic a.s. · Telecom

Summary

This part-time role involves supporting the development of an automated testing environment for telecommunications core network solutions (4G/5G). Responsibilities include developing and maintaining tools, designing and executing tests, analyzing network logs, and automating regression test suites.

Key facts

Status
Available
Location
Praha 4
Contract
Part-time
Working time
50%
Work arrangement
Hybrid
Start date
Immediately
Level
Entry
Education
Secondary school
Languages (required)
  • EnglishB2
Required skills
  • Python
  • 4G/5G
  • Core network
  • Linux
  • IP networking
  • GitLab CI
  • Jenkins
  • Wireshark
Benefits
  • Flexible working hours
  • Equal employment and career development opportunities
Estimated salary (not official)
~35k–45k Kč/moRough estimate for a full-time role — not provided by the employer How is this calculated?

Full description

We are looking for a motivated student to join our team on a part-time basis and support the development of automated testing environment for telecommunications core network solutions (4G/5G).

Responsibilities

Support the development and maintenance of internal tools and environments Design, development and execute tests for core network (4G/5G) functionalities Analyze 4G/5G core network call flows and logs to design and maintain functional test cases.

Support automation of regression test suites and integration into CI/CD pipelines. Work with network logs, test scenarios, and automation frameworks Collaborate with an international team on ongoing projects Contribute to continuous improvement of testing processes and environments

Requirements

  • Student status (preferred fields: Telecommunications, IT, Computer Science, or similar)

Good programming skills and ability to read and understand Python code (hands‑on experience) is a strong plus, AI‑assisted coding tools are used in the team. Willingness to learn and use Python‑based test automation frameworks and tools.

Good communication skills and openness to new challenges Ability to work in a team and communicate in English (B2 or higher) Basic understanding of mobile network architecture, especially Core network, is an advantage Basic experience with Linux (working in terminal, handling log files) is an advantage.

Basic understanding of IP networking (TCP/UDP, ports, routing) is an advantage. Interest in test automation and Continuous Integration (e.g., GitLab CI, Jenkins) is a plus. Any experience with tools like Wireshark or similar test tools is a plus.

We Offer A great working atmosphere in a friendly and supportive team Opportunity to start your career in a well-established international company Hands‑on experience in 4G/5G core network technologies Personal and professional development opportunities Flexible working hours adapted to your studies Everyone is welcome to join us Our employees feel that they have equal employment and career development opportunities with us, regardless of age, gender and gender identity, sexual orientation, physical and mental ability, nationality, social and ethnic origin, political views, religion and world view.

This makes us very happy. We are committed to continuous improvement and to creating a safe working environment for all.

Apply on the company site