Mobile Private Networks Support Engineer

Challenge mastered.
#MakeITHappen
Did you know that A1 Bulgaria is working on international projects as well?
Our wide portfolio has long past the telecom services, and we are now offering digital solutions to millions of corporate, public, and private customers.
State-of-the-art technology, the latest innovations, and extremely talented professionals in various areas help us deliver the best-in-class products, services, and customer experience.

You’ll know A1 Bulgaria is the right place for you if you are driven by:

Opportunities to learn and build your career;
Meaningful work in a stable and fast-paced company;
Diversity of people, projects, and platforms;
A supportive, fun, and inspiring place to work.

Would you like to join us?

Petar Deliiliev is looking for a new team member.

The telecommunications industry is one of the most high-tech industries in the modern world and offers an exciting field for individuals with technical skills.

Your daily routine would include:

Ensure high available, efficient operation and continuous enhancement of A1 Mobile Private Network (MPN) core network installations across multiple customers located in A1 footprint;
Monitoring the performance of A1 MPN services, infrastructure components, and applications, including collection, analysis, and reporting of performance data, identifying areas for improvement, potential anomalies, performance issues or bottlenecks. Root cause analysis to determine the underlying causes of performance issues;
Capacity management ensuring that MPN resources, such as hardware, software, bandwidth, storage etc., are effectively and efficiently utilized to meet current and future demand, including capacity planning/forecast, monitoring, and optimization activities to ensure that adequate capacity is available to support business needs and prevent performance degradation;
Utilize modern virtualized and cloud-based technologies for MPN Core networks to achieve highly scalable and efficient network functions;
Perform operations, configurations, system administration, testing, and maintenance activities, ensuring reliability and performance;
Work closely with departments such as: NOC, RAN, Core, IP Transport and Security to ensure services alignment with overall business needs.

We’ll know you can make it if you have:

University degree in the field of IT/Telecommunications;
Experience with operation and configuration management, system health checks, analyzing statistics and end-2-end traces for any of the listed network functions is a plus: SDM (HLR, HSS, UDM), IMS Core (P/S/I/E-CSCF, TAS, BGCF) , PS Core (MME, AMF, SMF, SGW, UPF, PCF)
Very good knowledge of all basic 3GPP message flow in a Mobile Network of different generations: 2G/3G/4G/5G (minimum is 4G), e.g. MAP, Diameter, SOAP;
IP Networking and Routing Protocols, TCP/IP, Diameter, http/2;
Self-motivated with a proactive approach to problem-solving;
Excellent analytical and communication skills.
Working level user Linux experience, VNF/CNF;
Possibility for 7×24 call-out responsibility;
Good written and spoken English skills.

Our gratitude for the job done will be eternal, but we’ll also offer you:

Innovative technologies and platforms to “play” with;
Modern working environment for your comfort;
Friendly, ambitious, and motivated teammates to support each other;
Thousands of online and in-person learning opportunities to grow;
Challenging assignments and career development opportunities in multinational environment;
Attractive remuneration package;
Flexible working schedule and opportunity for home office;
Numerous additional goodies, including, but not limited to free A1 services, discounts, health insurance and services, sports center, childcare, team and family events, etc.

Not sure yet? See us in action in our A1 Blog.

Sounds good? Apply now!

Deadline for application: 6 February 2025

Only shortlisted candidates will be contacted.