Job Description:

As a Senior Specialist, Network Technology Support / Mobility Ethernet Reliability – Tier 2 Technician, you play a critical role in maintaining and troubleshooting the RAN Transport network that supports AT&T’s wireless infrastructure, including 4G and 5G services.

What you’ll do (support and use)

Network maintenance & repair

Support transport/network elements and site equipment such as MSNs, SIADs, DaFi, Small Cells, microwave systems, and NTEs.

Remote troubleshooting & restoration

Diagnose and resolve network incidents remotely by connection to live devices in the network in CLI and GUI and by using internal tooling, trouble tickets, calls, and email.

Perform detailed technical analysis, determine root cause where possible, and define/drive next steps to restore service.

Collaboration & coordination

Coordinate with internal teams, Local Exchange Carriers (LECs), field technicians, and vendors to execute repairs and service restorations.

Escalation & outage management

Own/participate in escalation management and respond to major incidents (e.g., SEV1/1E, SEV2/SEV3), including tracking, communication, and driving resolution.

Technologies you’ll work with

Devices / platforms

Cisco, Nokia, Ciena, Juniper, Vyatta

Routing & resiliency protocols

OSPF, BGP, HSRP, VRRP, BFD

Static routing (IPv4/IPv6)

Troubleshooting focus areas

Layer 1: cabling, optics/SFPs, interface cards/modules

Layer 2: VLAN down/misconfig, ARP issues

Layer 3: packet loss, multicast/broadcast/unicast forwarding issues

Qualifications & skills

Strong spoken and written English

Strong collaboration skills for cross-team cooperation

CCNA/CCNP or equivalent hands-on knowledge

Basic UNIX/Linux understanding

Training/mentoring/lecturing experience

3–4 years of telecommunications network experience preferred

Degree in Telecommunications, Computer Science, Engineering, or related field preferred

Work environment

Hours: 05:00–16:00 local time (EMEA), with weekend rotation

Location: Flex worker (typically 1–3 days/week onsite in Brno)

Salary Range: from 94 600 - 140 000 CZK gross a month. The actual salary is based on your skills, experience and knowledge.

Weekly Hours:

40

Time Type:

Regular

Location:

Brno, Czechia

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Job ID R-99997 Date posted 02/04/2026