Job offer

T-Mobile Poland


Job-ID: 110517_PL_2

Mobile Core DevOps

T-Mobile Polska S.A.
Warsaw, Poland
Job level:
Employment type:
Full Time - Regular
Application Deadline:
Functional Area:
Technology and Networks
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As a member of the DevOps team you will be located in Poland (Warsaw) with some travel abroad (5-25%). You will participate in projects spread all around the globe. You will be part of the team responsible for 2nd line Core Network operations – on call support is required (well planned).

Since the team is now being established you will have a unique opportunity to influence its future shape and your role within.

We need experts experienced with PBR of such network nodes as (one area or more): P-GW/GGSN/CSGN, HLR/HSS, STP/DRA, SMSC, PCRF, SCEF.

IoT business has been exploding for the last quarters and will continue to dramatically grow for years ahead, so there is no better place to be right now!

The time for change is now!

Start thinking big, be part of something big - our customers live all around the globe, from Far East, to Europe, to both Americas and it is us to make sure they are provided with the expected level of quality throughout the full lifecycle of platforms in IoT Core. So it’s no longer about just a few millions SIMs in just a single region.

  • You will integrate and maintain mobile network core nodes dedicated for IoT traffic (CSGN, P-GW, PCRF, HLR/HSS, DEA, STP, SCEF, SMSC, etc.);
  • You will be responsible for the design & implementation of requested changes by product owners;
  • You will be responsible for administration, engineering and operation of Mobile Core Network;
  • You will be responsible for troubleshooting issues in the Core Network, providing technical support for internal customers
  • You will be responsible for capacity engineering of the Core Network based on provided forecasts;
  • You will be part of the DevOps team, where you are responsible for the change from the start to the end of implementation – design it, plan it (capacity, etc.), implement in live network, troubleshoot and fix in case something goes wrong;
  • You will drive the improvement of the operational / testing aspects (automation) for the Core Network.
  • Deep understanding of mobile core network (packet core, HSS/HLR, IMS/R4);
  • Good understanding of virtualization principles and cloud concept;
  • Practical experience with integration and configuration of the main EPC nodes;
  • Practical knowledge of the main mobile core vendors’ nodes will be an advantage;
  • Specialized knowledge of Networking – IP, IP/MPLS, Telco Cloud;
  • Experience to work with standardization documentation (ITU-T, 3GPP, IETF);
  • Practical (testing, troubleshooting) knowledge of the mentioned above technologies;
  • Experience: 2 years on engineering position in one or more following areas: Mobile Networks – 2G/3G/4G, IP;
  • Basic scripting/programing;
  • Automation tools knowhow or willingness to possess such knowledge;
  • Willingness to take over organizational work;
  • High degree of commitment and responsible work;
  • Team orientation, good communication skills and creativity;
  • Analytical and structural thinking;
  • Self-initiative in the acquisition of expertise;
  • Ability to work under pressure, including night hours and overtimes;
  • Self learner - proven ability of self learning;
  • Technical & communicative English;
  • On Call support (24/7) required.
  • Home office/mobile working possible

  • Connection to public transport

  • Flexible working hours

  • Training offers and allowances

  • Employee discounts

  • Health offers and insurance

  • International activity

  • Parking available

  • Onboarding programme

We are one of the largest mobile operators in Poland, serving nearly 10,251 million customers. As an integrated operator, we provide a full range of telecommunications services, ICT services, customers also have the option to take advantage of a full range of financial services as part of T Mobile banking services.

Thanks to the most modern, completely upgraded network infrastructure, T Mobile Polska covers nearly 100% of Poland’s population with its 3G network and more than 99,8% of the population with the LTE network. We are a part of Deutsche Telekom Group, a global telecommunications concern, that has 225 thousand employees and is present in 50 countries around the world, serving over 200 million customers.

T-Mobile is a unique place for great experiences. A place where answers to great challenges come from true team spirit.

A place where change means opportunity for progress and innovation and where people with the ambition for peak performance can go beyond what is today and create what is tomorrow. Join us!


Katarzyna Czechowska

Further career information

Your application - quick and easy in just 5 minutes! Found your new job? Then simply click on 'Apply now' to register for our online job tool. Do you have your application documents (CV, cover letter, certificates) available? You can upload them as pdf-; word- (docx); ppt-; xls-; csv- oder txt-file with a maximum upload size of 10 MB each. As soon as we receive your application, you will get a confirmation via e-mail. The first thing we do is check whether your profile matches the job. Depending on the position, this first selection round can take up to four weeks. If you are successful in the pre-selection round, we will contact you to arrange an interview. You can check the status of your application in your applicant profile at any time.

Looking for tips for your application? Then take a look at the section called >Application Tips on our career website. Here you will find all manner of tips on 'The Right Way to Apply' and all the answers to the online application process.

By the way: Once you have set up your digital application, you can use it to apply for any position at Deutsche Telekom Group - quickly and easily with just a few clicks.

You need technical help? Our Career Team can be reached via e-mail or via phone: +49 800 3306700 and is looking forward to help you with any request.

Master exciting challenges without overextending yourself, be dedicated to your job while also enjoying a well-balanced private life – this is admittedly not always easy.

Take charge of your life. With work-life@telekom, Telekom is expressly integrating the reconciliation of work and private life into the corporate culture. Diverse measures in the focal areas “Working time and location”, “Health and fitness”, “Family” and “Social aspects” ensure improved reconciliation of work and private life – for all of our employees: Singles and families, young and old employees, men and women. With us you can unfold your full potential while also making your individual life plan a reality.

We can offer you development opportunities that are lifelong. After all, the challenges in our industry are constantly changing - and we know, that we can best meet them with outstandingly qualified colleagues.

We offer a broad spectrum of personal training and development possibilities. Whether you're a newcomer, an expert or a manager - we can offer you exciting prospects and individual career paths. For example, there are various development programs to support expert and executive careers, international exchanges, or part-time studying while you work. Our employees have the choice. Detailed information can be found in the category Career Center on our career website.

Money might not bring happiness, but it does make life easier. Because we want you to be able to focus fully on the projects at hand, we support you with an attractive salary and numerous benefits. Because money can't get you everything, we offer a number of benefits to make life easier on top of that. You can further benefit from individual location-specific offers and support services.

You want to know more about our compensations and benefits? Then take a look at the section called Our Services on our career site.

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