Skip to content

AT&T International Careers My Job Application

Join a network that helps you succeed

At AT&T, our talents work together to make a difference. Think you’d like to help us connect more people than ever before? Check out our latest opportunities below, or browse for other recent postings.


Senior Network Engineer


Sofia, Bulgaria

Ref #:


Date published:

Apply now
AT&T is recognized as one of the leading worldwide providers of IP-based communications services to businesses. We are the largest communication holding company in the world by revenue and we serve millions of enterprises and multinational business corporations on six continents.

Our Network team in Bulgaria has grown to more than 120 professionals and has proven to be a trusted partner to more than 100 clients for more than 10 years, making us proud of the high levels of customer satisfaction we achieve and maintain. As we are currently growing and take new customers under our support, we offer a various range of opportunities for Network specialists to grow their expertise and apply their skills in a variety of long-term projects for some of the most high-potential industries worldwide.

Roles and Responsibilities:

• Strictly following HP ITSM/ITIL processes and procedures.
• Analyzing and solving complex issues in close collaboration with other technical and account teams.
• Preparing and implementing complex normal, standard or emergency changes network changes and project related tasks.
• Consulting and mentoring other network engineers from your team.
• Participating in Root Cause Analysis and lifecycle activities as a process owner.
• Deep technical troubleshooting in conjunction with vendor and third-parties for various technologies.
• Ongoing support activities, performed according to agreed SLA’s
• Participating in Change Advisory Board (CAB) / Technical Advisory Board (TAB) meetings to determine potential impact of changes in the customer’s environment and providing feedback for various projects.
• Maintaining of the Configuration Management Database (CMDB) and Configuration Items (CI’s) in conjunction with environment changes.
• Responsibility for particular account and/or platform in technical terms.
• Subject Matter Expertise; Consultation and Project Implementation

Key Competencies and Skills:

• Bachelor degree in Computer Science, Telecommunication or equivalent.
• At least 5 years relevant network experience.
• Previous experience with support of Enterprise customers is a must.
• Cisco CCNP, CCDP, CCNA Security, HP AIS and/or other equivalent network certification.
• Extensive experience with Cisco, Juniper, H3C and Huawei network technologies.
• Extensive experience with Cisco Nexus and other datacenter equipment.
• Experience with HP, Aruba and Cisco Wireless Equipment.
• Expert knowledge in TCP/IP, routing (OSPF, BGP, EIGRP), switching (Ethernet, STP, LACP, VTP) and other network technologies and protocols, such as ICMP, ARP, Port-security, etc.
• Expert knowledge in network security technologies – Firewalls, Proxies, VPN’s
• Excellent coordination and communication skills.
• Mentorship skills.
• Ability to work under pressure and following tight schedules.
• Fluent in English.
• Very good team player.

• Cisco CCIE, CCNP Security, Juniper JNCIE-ENT, JNCIP-ENT certification will be considered an advantage
• Understanding of IT Service Management (ITSM) and IT Infrastructure Libraries (ITIL) processes
• Experience with F5 BigIP Load Balancers (including LTM, ASM, APM, GTM modules)
• Experience with Riverbed WAN Accelerators

Additional Information:

We offer a challenging role including:
• Competitive remuneration package
• Challenging and exciting work with the latest cutting-edge technologies
• Great working atmosphere within a team of successful, talented and motivated professionals
• Continuous learning and training opportunities including certification
• Excellent social benefit package including:
- 4 days additional paid leave (total: 24 days)
- Food vouchers
- Medical and Life insurance