MARCELO TERSIGNI
MARCELO TERSIGNI

Senior Optical & Microwave Engineer

Actively looking · Member since 14 Aug 2026
Message
Location
Sorocaba, Brazil
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Part Time, Contract, Freelance, Temporary
Experience level
Senior

About

Professional summary

I am a senior telecommunications and network engineer with 25 years of experience in optical transport, microwave, IP, and carrier network deployment across Brazil and Latin America.

I specialize in the installation, integration, commissioning, operation, and technical support of DWDM, OTN, SDH, PTN, IP/MPLS, Metro Ethernet, GPON, and microwave networks.

I have extensive experience providing L2 technical support in carrier-grade environments, managing incidents, performing root cause analysis, maintaining SLA and KPI targets, and improving service reliability.

I have led network deployments, technical audits, software upgrades, operational rectifications, and 24/7 crisis response activities for major telecommunications customers.

I am comfortable working directly with customers, field teams, project organizations, and R&D stakeholders in demanding operational environments. I also have experience delivering technical training and knowledge transfer programs across Latin America.

I bring a practical, customer-focused approach to resolving complex network issues, improving support efficiency, and ensuring stable and standards-compliant service activations.

Skills

14 capabilities

Experience

Career history

Technical Support Engineer Huawei Brazil

Delivered L2 technical support for DWDM, OTN, SDH, microwave, IP, and GPON solutions at Huawei TAC Brazil while maintaining SLA and KPI targets. Managed complex troubleshooting, rectification, software upgrades, and customer-facing support activities.

Led biannual optical and microwave network audits, presenting findings and recommendations to customers. Reduced network downtime by 20% through software upgrades and rectification work, and reduced ticket resolution time by 40% through collaborative process improvements.

Managed a Huawei network team for two years across IP, GPON, and transmission operations. Directed 24/7 operations and coordinated crisis and critical incident responses for P1/P2 events.

Optical Network Engineer - Implementation Phase Huawei Brazil

Deployed and commissioned DWDM, SDH, PTN, and microwave transmission equipment for Vivo, Oi, and GVT carrier networks. Performed installation, configuration, integration, acceptance testing, troubleshooting, and service activation.

Led the deployment of more than 150 Huawei devices across Latin America, improving network stability by 30% and supporting on-time service activation. Provided on-site and remote support to maintain network availability and meet project delivery timelines.

Technical Support Engineer Huawei Brazil

Provided L2 TAC support for DWDM, SDH, PTN, and microwave solutions to carrier clients throughout Brazil and Latin America, consistently meeting SLA and KPI targets.

Supported the deployment and expansion of Oi's transport network, including installation, integration, commissioning, and service activation. Performed root cause analysis and resolved complex issues with field, project, and R&D teams to help maintain 99.9% network availability.

Training Engineer Huawei Brazil

Delivered technical training programs on Huawei DWDM, PTN, SDH, and microwave solutions for customers, partners, and field engineers across Brazil and Latin America. Increased technical training completion rates by 25%.

Conducted theoretical and hands-on training covering installation, configuration, commissioning, operation, maintenance, and troubleshooting of carrier-grade transmission networks. Delivered knowledge-transfer programs in Venezuela, Chile, Peru, and Colombia, adapting content to local customer requirements.

Telecommunications Technician Lucent Technologies

Worked on operations and maintenance projects for the Telemar network, providing corrective and preventive maintenance for backbone and access-network infrastructure.

Performed troubleshooting, fault diagnosis, and maintenance on DWDM, SDH, routers, and central-office equipment. Supported high network availability, service continuity, and compliance with operational performance standards.

Education

Learning history
No education data available.

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