Senior Network Engineer (Maturity L4+)
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Job Summary
We are seeking a highly qualified professional to join our team as a Senior Network Operations Engineer (Tier 3/4 – MS NOC). This role leads complex troubleshooting and operational decision-making, acting as the final escalation layer and ensuring strong alignment with stakeholders. The position drives innovation and continuous optimization of network and security services, while supporting execution coordination and overall team effectiveness within the MS-NOC Services framework.
Qualifications
Minimum of 10+ years of experience in enterprise network operations or engineering
Demonstrated autonomy at operational maturity level 4 or higher (expert / proactive)
Proven experience overseeing multi-region operations (e.g., Europe, APAC, North and South America) with end-to-end visibility
Strong exposure to ITIL-aligned operations (incident, problem, change management)
Solid background in stakeholder management and leading continuous improvement or automation initiatives
Ability to operate as a senior escalation point in high-impact, business-critical environments
Responsibilities
Own Tier 3 and Tier 4 escalations, including root cause analysis, problem elimination, and operational decision-making during major incidents
Lead and govern changes such as upgrades, patching, and planned works, ensuring documentation quality and CMDB alignment
Continuously improve and maintain operational runbooks and procedures
Coordinate closely with Service Desk, SOC, EDP network teams, and external vendors or operators to restore services and prevent recurrence
Drive continuous improvement initiatives, including automation, API usage, scripted diagnostics, and intent-based changes
Provide technical leadership and guidance to ensure operational stability across global network domains
Technical Skills (Must-Have)
Deep engineering expertise across MS NOC domains: WAN / SD-WAN, LAN / Wi‑Fi, perimeter security, cloud interconnects, and data centers
Advanced routing and traffic engineering skills, including BGP concepts such as inbound/outbound influence, stability monitoring, and route anomaly analysis
Strong experience with SD-WAN operations and orchestration, including controller and control-plane troubleshooting, policy and QoS tuning, and ZTP troubleshooting
Solid understanding of hybrid cloud networking, including ExpressRoute, Direct Connect, Transit Gateway, Virtual WAN, and cloud routing and security constructs
Advanced proficiency with operational tooling, monitoring, and observability platforms such as ServiceNow, Zabbix, SolarWinds, Grafana, Splunk or Elasticsearch
Experience with knowledge and network management tools including Confluence, Cisco Catalyst Center, and phpIPAM
Certifications (Expected)
CCNP Enterprise or equivalent certification
ITIL Foundation or ITIL Practitioner
Aruba Certified Switching Professional (ACSP)
Cloud networking certification or equivalent cloud networking track
Nice to Have
Experience working in large-scale, regulated, or tender-based service environments
Strong scripting or automation skills (e.g., Python, REST APIs)
Exposure to intent-based networking and advanced telemetry
Experience mentoring senior engineers or acting as a technical authority
Additional Information
Work Model: Hybrid
Location: Lisbon or Porto
Lisbon
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