Execute configuration, administration and troubleshooting tasks on physical and virtualized networks within the NFVi environment, including L2/L3 switches, virtual switches, SDN controllers and overlay/underlay networks.
Perform acceptance tests and functional validation of new elements and systems.
Work with monitoring and inventory teams to validate integrations, adjust metrics and ensure full visibility of the environment.
Document operational routines and troubleshooting procedures and propose continuous improvements to increase operational efficiency.
Monitor network KPIs and metrics, applying tuning, load balancing and preventive adjustments to avoid congestion, packet loss and bottlenecks.
Troubleshoot connectivity issues involving VLANs, VXLAN, BGP/EVPN, OSPF; port-channels, VLT/MLAG, STP/ERPS and overlay/underlay architectures.
Provide technical support for NFVi infrastructure evolution projects, such as upgrades, migrations and integrations.
Collaborate with technical teams to resolve issues and continuously improve the environments.

Requirements

Experience operating and troubleshooting medium- to large-scale virtualized or NFVi environments.
Hands-on experience with multivendor L2/L3 switches (Huawei, Dell, Cisco, HPE, Nokia).
Knowledge of virtualized networking and related technologies such as OpenDaylight, SDN controllers, virtual switches (OVS, proprietary vSwitches), overlay systems like VXLAN and EVPN, and SD‑WAN.
Advantage: Experience troubleshooting networking in mainstream operating environments (bare metal and VMware virtualized environments).
Advantage: Knowledge of automation and scripting, such as Shell, Ansible, PowerCLI, Perl and Python.
Advantage: Knowledge of Infrastructure as Code (IaC) using tools such as Terraform and Ansible.
Advantage: Familiarity with telemetry and observability tools such as Prometheus, Grafana and ELK/EFK.
Advantage: Knowledge of security best practices applied to virtualized environments, including hardening of switches and routers, logical access management, network segregation and microsegmentation.
Advantage: Knowledge of security best practices applied to virtualized environments, including hypervisor hardening and access management.
Advantage: Basic knowledge of container and orchestration technologies such as Docker and Kubernetes.
Intermediate English (reading, speaking and writing).
Bachelor's degree preferred, ideally in Telecommunications Engineering, Information Technology, Computer Systems, or Network Engineering.
Availability to work in a shift model, 5x2 schedule with weekend on-call.

Benefits

Flexible Benefits Program
Health and Dental Insurance *
Medication Benefit *
Wellhub (formerly Gympass) *
Meal and/or Food Allowance
Financial Well‑being Program
Private Pension Plan
Company mobile device with unlimited internet and voice allowance
Partnerships and agreements with over 3,000 companies and institutions, including discounts on electricity bills and broadband internet
Online English course extendable to one family member or friend
Internal Training and Development Program
Profit Sharing
"My First Benefit" — assistance for children up to 2 years old
Daycare reimbursement (for parents)
Flexible work models and schedules
Happy Day — a day off during your birthday month
Extended leave for maternity, paternity, marriage and adoption
Transportation allowance
And more!

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

network troubleshootingvirtualized networkingL2 switchesL3 switchesSDN controllersVLANsVXLANBGPOSPFInfrastructure as Code

Soft Skills

collaborationdocumentationproblem-solvingcontinuous improvementcommunication