T-Systems reviews

3.7

74% would recommend to a friend

(2,260 total reviews)
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Dr. Ferri Abolhassan

72% approve of CEO

59% positive business outlook

T-Systems has an employee rating of 3.7 out of 5 stars, based on 2,260 company reviews on Glassdoor which indicates that most employees have a good working experience there. The T-Systems employee rating is in line with the average (within 1 standard deviation) for employers within the Tecnologías de la información industry (3.9 stars).

Reviews by job title

2K reviews
4.0
Jan 20, 2026

Good

Recommend
CEO approval
Business Outlook

Pros

Good to work, good environment

Cons

Good to work, DC service providers

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T-Systems Response
5mo
Hello, Thank you very much for your positive feedback! We are delighted to hear that you are happy with us as an employer. Your kind words motivate us to continue creating a supportive and inspiring work environment. We would love to welcome more talented individuals to our team, so we truly appreciate any recommendations! support_career@telekom.de Best regards, Your Telekom Career Team
5.0
Jan 17, 2026
Recommend
CEO approval
Business Outlook

Pros

Love to work at this company, very cool people and projects. Also fully remote opportunities.

Cons

Too big of a corporation.

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T-Systems Response
5mo
Hello, Thank you for taking the time to share your feedback. We're glad to hear that your experience with Deutsche Telekom has been largely positive. Your input is invaluable in helping us grow and maintain a workplace that supports and inspires our employees. If you have any further thoughts or suggestions, feel free to reach out to us at support_career@telekom.de. Best regards, Your Telekom Career Team
4.0
Jan 17, 2026
Recommend
CEO approval
Business Outlook

Pros

Great place, nice work environment, hybrid working

Cons

Senior or old people who have been here more than 5 years plays politics and it's difficult for new comer even he/she is experienced.

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T-Systems Response
5mo
Hello, Thank you for taking the time to share your feedback. We're glad to hear that your experience with Deutsche Telekom has been largely positive. Your input is invaluable in helping us grow and maintain a workplace that supports and inspires our employees. If you have any further thoughts or suggestions, feel free to reach out to us at support_career@telekom.de. Best regards, Your Telekom Career Team
Viewing 43 - 45 of 2,260 Reviews

Glassdoor has 4,325 T-Systems reviews submitted anonymously by T-Systems employees. Read employee reviews and ratings on Glassdoor to decide if T-Systems is right for you.