Nelson Vieira Da Silva
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Nelson Vieira Da Silva Email & Phone Number

Contracts and Costs Manager at NOS SGPS
Location: Porto, Porto, Portugal 9 work roles 8 schools
1 work email found @sonae.com LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

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Current company
NOS SGPS
Role
Contracts and Costs Manager
Location
Porto, Porto, Portugal
Company size
4026 employees

Who is Nelson Vieira Da Silva? Overview

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Nelson Vieira Da Silva is listed as Contracts and Costs Manager at NOS SGPS, a company with 4026 employees, based in Porto, Porto, Portugal. AeroLeads shows a work email signal at sonae.com and a matched LinkedIn profile for Nelson Vieira Da Silva.

Nelson Vieira Da Silva previously worked as Energy, HVAC and Field Operations Manager at Nos Sgps and Field Service Manager at Nos Sgps. Nelson Vieira Da Silva holds Msc from Universidade Do Porto.

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*@sonae.com
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Profile bio

About Nelson Vieira Da Silva

Experienced telecommunication engineer with extensive work on project management, team management, network operations, contract governance, performance metrics, procurement and negotiation. Main focus in - Managed Services and Field Operations management (set-up and operations)- Contract Management (procurement, negotiation & contract administration)- Network Operations (for both, mobile and fixed networks including TV) - Access & Transmission technologies (roll-out and operations) More than 20 years of experience on telecom area, and more than 10 years within management of field service operations for telecommunications, with full responsibility from procurement phase until contract administration, including all operations activities and measurement of performance.Acknowledged track record on project management including fixed wireless network roll-out, national xDSL network roll-out, FTTx operations setup, team building and management, environmental (ISO 14001) and quality (ISO 9001) managements, change management during companies merge phases, tools for supporting operations (ex: ITIL, SAP BI/BO, OBIEE/ODS, Power BI, BMC ITSM, BMC Remedy, Cramer) and mastering of IT tools (ex: Excel, Word, Visio, Sharepoint, Powerpoint, MS Project). Extensive experience on managing Field Service operations for mobile (GSM, 3G. 4G, LTE), transmission (SDH. DWDM, IP, dark fiber networks) and fixed networks (xDSL, FTTx, HFC), coordination several contracts for Operation, Maintenance and Roll-Out activities.Specialties: Engineering, Implementation, Operations Mobile and Fixed TelecommunicationsAccess Networks, Transmission NetworksContract Management, SLA monitoring, negotiation, performance evaluationKey Performance Indicators: definition, implementation and control Budget controlField Service ManagementQuality ManagementEnvironmental ManagementProject ManagementChange Management

Listed skills include Telecommunications, Project Management, Ip, Sdh, and 38 others.

Current workplace

Nelson Vieira Da Silva's current company

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NOS SGPS
Nos Sgps
Contracts and Costs Manager
Porto, PT
Website
nos.pt
Employees
4026
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9 roles

Nelson Vieira Da Silva work experience

A career timeline built from the work history available for this profile.

Contracts And Costs Manager

Nos Sgps

Porto, PT

Energy, Hvac And Field Operations Manager

Current
Nos Sgps

Leading the Power and HVAC infrastructures operations team: including operation, maintenance, implementation and support of NOS technical sites (from small cabinets to large datacenters for both fixed and mobile networks), energy efficiency, sustainability and energy budget control. Design and implement analytics solutions for energy optimization.Follow-up.

Jan 2021 - Present

Field Service Manager

Nos Sgps

Portugal

Managing Field Service O&M Contracts (managing several outsourced contracts with more than 300 field technicians): drafting, procurement, negotiation, preparations and setup procedures, management governance, monitoring SLA metrics, KPI measuring, budget control, improving performance, claims and dispute resolution.Interface with Operations and Roll-Out.

May 2014 - Jan 2021

Contract Manager

Optimus - Comunicações S.A.

Introduced the function of Field Service contract administration role, including drafting, procurement, negotiation, setup procedures, management governance, monitoring performance and budget control.Designed and implemented IT tools for monitoring contractual SLA and KPI metrics. Evaluated operational and financial synergies in technical contracts within.

Sep 2006 - May 2014

Transmission Manager

Sonaecom

Implemented a change process after the merge between Novis and Optimus: organized productively the team, established a budget control, improved processes and introduced new IT tools. Coordinated Transmission Operations: upgraded the cellular backhaul (GSM, 3G, UMTS), upgraded backbone network, established provisioning processes for TDM and IP.

Jan 2006 - Sep 2006

Access And Transmission Manager

Novis

Established Access and Transmission team with 25 technicians/engineers. Implemented SLA and KPI metrics for performance monitoring. Designed, customize and coordinated the implementation of IT tools for supporting the team activity. Managed roll-out and operations of DWDM, SDH, SDH and PDH Microwave, fibre optic networks; access TDM technologies: WLL and.

Dec 2004 - Dec 2005

Access Network Manager

Novis

Managed Access networks engineering, roll-out and operations of access networks. Introduced IT tools for supporting operations (ex: Business Objects, Remedy, Cramer, in-house tools).Head a project of design, plan and implement a national wide Wireless Local Loop network for corporate services and cellular backhaul and related operational processes.Designed.

Jan 2000 - Nov 2004

Project Manager

Sonae Redes De Dados

Started a technical pre-sales team for technical design advisory to sales. Involved in procurement and negotiation of customer solutions for telecommunications.Coordinated the technical team with France Telecom in preparations of the launch of Novis (colaboration between Sonae and France Telecom) on wireless access networks. Personal involvement in.

Mar 1999 - Dec 1999

R&D Engineer

Inesc Porto

Researcher, Software Engineer and Developer on several Network Areas: V5.x, TCP/IP, QoS, ATM, Internet, Linux, C, C++, Perl.Presented a paper “TCP/IP Over ATM -- Performance Evaluation And Optimisation” in ATMTU’99 conference in Kosice, Slovakia (Technical University of Košice, February 1999).

Aug 1996 - Feb 1999
Team & coworkers

Colleagues at NOS SGPS

Other employees you can reach at nos.pt. View company contacts for 4026 employees →

HJ Hugo Jesus Aegn Hugo Jesus Aegn Colleague at Nos SgpsVila Nova De Gaia, Porto, Portugal, Portugal View → MV Margarida Valente Rodrigues Margarida Valente Rodrigues Colleague at Nos SgpsLisbon, Lisbon, Portugal, Portugal View → VF Vasco Fernandes Vasco Fernandes Colleague at Nos SgpsLisboa, Lisbon, Portugal, Portugal View → SG Solange Gomes Solange Gomes Colleague at Nos SgpsSintra, Lisbon, Portugal, Portugal View → MC Melissa Cunha Melissa Cunha Colleague at Nos SgpsBraga, Braga, Portugal, Portugal View → RF Ricardo Ferreira Ricardo Ferreira Colleague at Nos SgpsPortugal, Portugal View → MA Mayara Azevedo Mayara Azevedo Colleague at Nos SgpsLisbon, Lisbon, Portugal, Portugal View → RV Ricardo Viçoso Ricardo Viçoso Colleague at Nos SgpsLisbon Metropolitan Area, Portugal View → AS Ana Sousa Ana Sousa Colleague at Nos SgpsGondomar, Porto, Portugal, Portugal View → LT Luís Tunes Luís Tunes Colleague at Nos SgpsMaia, Porto, Portugal, Portugal View →
8 education records

Nelson Vieira Da Silva education

Sap Businessobjects Web Intelligence: Report Design

Sap Portugal

Education record

Aese

Education record

Laboratório Da Formação

Education record

Nova Forum / Sonaecom
FAQ

Frequently asked questions about Nelson Vieira Da Silva

Quick answers generated from the profile data available on this page.

What company does Nelson Vieira Da Silva work for?

Nelson Vieira Da Silva works for NOS SGPS.

What is Nelson Vieira Da Silva's role at NOS SGPS?

Nelson Vieira Da Silva is listed as Contracts and Costs Manager at NOS SGPS.

What is Nelson Vieira Da Silva's email address?

AeroLeads has found 1 work email signal at @sonae.com for Nelson Vieira Da Silva at NOS SGPS.

Where is Nelson Vieira Da Silva based?

Nelson Vieira Da Silva is based in Porto, Porto, Portugal while working with NOS SGPS.

What companies has Nelson Vieira Da Silva worked for?

Nelson Vieira Da Silva has worked for Nos Sgps, Optimus - Comunicações S.A., Sonaecom, Novis, and Sonae Redes De Dados.

Who are Nelson Vieira Da Silva's colleagues at NOS SGPS?

Nelson Vieira Da Silva's colleagues at NOS SGPS include Hugo Jesus Aegn, Margarida Valente Rodrigues, Vasco Fernandes, Solange Gomes, and Melissa Cunha.

How can I contact Nelson Vieira Da Silva?

You can use AeroLeads to view verified contact signals for Nelson Vieira Da Silva at NOS SGPS, including work email, phone, and LinkedIn data when available.

What schools did Nelson Vieira Da Silva attend?

Nelson Vieira Da Silva holds Msc from Universidade Do Porto.

What skills is Nelson Vieira Da Silva known for?

Nelson Vieira Da Silva is listed with skills including Telecommunications, Project Management, Ip, Sdh, Transmission, Umts, Contract Management, and Gsm.

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