T-Systems reviews

3.7

74% would recommend to a friend

(2,260 total reviews)
avatar

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
5.0
Mar 20, 2026

Great place to work

Recommend
CEO approval
Business Outlook

Pros

Career growth Work life balance

Cons

Politics Management rewards those closer to them

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T-Systems Response
3mo
Hi, Thank you for taking the time to share your feedback and for your contribution during your time at T-Systems. We’re very pleased to hear that you experienced strong career growth opportunities and a good work-life balance. At the same time, we take your comments regarding internal dynamics and recognition seriously. Feedback like yours is valuable as we continue working to ensure a fair and transparent working environment. If you’d like to share more about your experience, please feel free to reach out to us at support_career@telekom.de. Thank you again for your contribution! Best regards, Your Telekom Career Team
2.0
Mar 13, 2026

Management becomes poor

Recommend
CEO approval
Business Outlook

Pros

Good Salary Work-life balance is good

Cons

Poor management Earlier, management was good, as soon as higher management changed, the company became service-based and all service-based policies imposed. No on-site opportunities

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T-Systems Response
3mo
Hi, Thank you for your feedback. We’re sorry to hear that your experience with Deutsche Telekom has been negative. Feedback like yours is essential in helping us identify areas where we can improve and create a better work environment. feel free to email us at support_career@telekom.de We appreciate having you on the team! Kind regards, Your Telekom Career Team
1.0
Feb 18, 2026

Not resourceful and dumb

Recommend
CEO approval
Business Outlook

Pros

Most projects have good work balance. But it's decreasing slowly due to infosys similar mindset.

Cons

1.) No annual bonus or worthy hike for the efforts. 2.) Most of the developers are too dumb (dont even know how to use a map in java), unresourceful employees, speaking about 7-9 years experienced. 3.)Management thinks that adding a name in excel would resolve everything(Too much hype although did not resolve security incidents) 4.)The connected-mobility and software factory is full of dumb managers/people who can't even understand simple examples. 5.) If you are someone coming from good tech background or company (mid product based), you will be irritated on how unworthy the people and things are eventually. 6.) Recent new HR management started micromanaging with >= 6 hrs in office policy. 7.) Infosys Mindset excel based managers exist and to deal with a lot of politics. 8.) There is a dumb quarterly recognition award which goes to people who dont know basic git. (Just keep circulating, such a joke of the award, stupid policies like need more than 1 year for award and 3 years for promotion) Overall not worthy.

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T-Systems Response
4mo
Hi, Thank you for your feedback. We’re sorry to hear that your experience with Deutsche Telekom has been negative. Feedback like yours is essential in helping us identify areas where we can improve and create a better work environment. feel free to email us at support_career@telekom.de We appreciate having you on the team! Kind regards, Your Telekom Career Team
Viewing 34 - 36 of 2,260 Reviews

Glassdoor has 4,324 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.