Strength. Care. Growth
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.
Your daily routine would include:
- Implement, configure, and maintain IP/MPLS Internet backbone and edge network infrastructures.
- Participate in complex, international ISP and Internet service delivery projects.
- Conduct fault isolation, troubleshooting, and performance analysis across IP/MPLS and Internet transit/peering environments.
- Perform software and hardware upgrades on Cisco and Nokia equipment.
- Coordinate operational tasks with cross-functional teams, field engineers, and customers.
- Plan and execute network migrations, capacity upgrades, and routing optimizations.
- Monitor and analyze traffic using NetFlow/cFlow/IPFIX and other telemetry sources.
- Assist in managing and maintaining Internet routing resources (RIPE database objects, route objects, ROAs, IRR entries, etc.).
- Support the operation of DDoS detection and mitigation systems (Arbor, Radware, or similar).
We’ll know you can make it if you have:
- Minimum 1 year of experience working with IP/MPLS or ISP networks.
- Hands-on experience with Cisco, Nokia, and/or Juniper service provider platforms.
- Certifications or equivalent knowledge level: CCNA, CCNP, Nokia NRS, or similar.
- Practical experience with key service provider protocols/technologies: ( Layer 2/3 switching ; OSPF, IS-IS, BGP ; MPLS, MPLS-TE; L3VPN, VPLS, EoMPLS; EVPN )
- Experience with traffic analysis tools: NetFlow, cFlow, sFlow, IPFIX.
- Familiarity with Internet ecosystem components such as: (RIPE NCC resources (ASN, IPv4/IPv6 allocations, RPKI/ROA management) ; Internet Exchange Points (IXPs) ; Peering IRR databases and routing security and transit fundamentals ;
- Fluent written and spoken English.
Nice to Have:
- Understanding of service provider network architecture, Internet routing, and global Internet operations.
- Experience with DDoS detection and mitigation platforms (Arbor APS/TMS, Radware DefensePro, etc.).
- Scripting and automation (Python, Bash, Ansible, Perl).
- Network documentation using Microsoft Visio or Dia.
- German language proficiency (B1 or higher).
Apply now!
Every internal candidate will be invited for an interview.
Every colleague, who has changed their position in the company, will receive an individual bonus of 1000 euro for an educational course of their choice.
Refer a friend for this position and get a bonus of 250 euro under the Employee referral program!
