RES reviews

3.4

57% would recommend to a friend

(339 total reviews)

Eduardo Medina

84% approve of CEO

37% positive business outlook

RES has an employee rating of 3.4 out of 5 stars, based on 339 company reviews on Glassdoor which indicates that most employees have a good working experience there. The RES employee rating is in line with the average (within 1 standard deviation) for employers within the Energy, Mining & Utilities industry (3.7 stars).

Reviews by job title

339 reviews
5.0
Oct 24, 2025

5 stars

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Purpose, values and commitment are aligned

Cons

Long hours and demanding tasks

avatar
RES Response
8mo
Thank you for taking the time to share a review on Glassdoor.
2.0
Oct 20, 2025

Aweful Culture & Bad leadership

Recommend
CEO approval
Business Outlook

Pros

Intiatilly started off a great place to work with genuine care in its culture. 5 weeks leave is also pretty sweet

Cons

Where do i start, this place has gone downhill significantly since I joined. The culture of care is gone, I've seen about 6 people in the business not make probation, instead of supporting them in their deficiencies the business eliminates them. I've also watched a good friend of mine who is a brilliant engineer get managed out by a manager who I would classify as a bully. I've watched two rounds of redundancies happen and some fantastic talent depart because of mismanagement. My advice do not work here and if you do either get out. The grass is greener elsewhere.

avatar
RES Response
7mo
Thank you for sharing your feedback with us. We truly value your perspective and would like to understand your concerns better. If you’re open to it, we’d be happy to arrange a confidential discussion with our HR team to address your experience and explore possible solutions. Please let us know a convenient time for you.
3.0
Oct 12, 2025
Recommend
CEO approval
Business Outlook

Pros

Good working enviroment Speak up culture Flex time

Cons

Low reward system compared to the other companies

avatar
RES Response
8mo
Thank you for your review. Many companies in Türkiye, including RES Türkiye, follow a variety of indicators on a monthly basis to make informed decisions about salary adjustments. Among these indicators are the average inflation rate (consumer price index), benchmark reports from global companies and exchange rate fluctuations. We understand the importance of providing financial stability for our employees and our management is committed to staying in tune with these economic factors to ensure that we can keep up with inflation and maintain the purchasing power of our team members.
Viewing 16 - 18 of 339 Reviews

Glassdoor has 394 RES reviews submitted anonymously by RES employees. Read employee reviews and ratings on Glassdoor to decide if RES is right for you.