LEONARDO DOS SANTOS FREITAS

Brazilian • married • 35 anos

Rua Retiro dos Artistas 1676

Tijuca - CEP 22770-105

Rio de Janeiro, RJ

Fone: +55-21-979**-****

e-mail: ac1kya@r.postjobfree.com

PROFESSIONAL PROFILE

15 years of experience in IT / Telecom, working in the areas of infrastructure, planning and support for large multinationals. Share personal and professional goal-oriented and results, good knowledge of ITIL. Ease of interpersonal relationships, teamwork, results orientation, are characteristics that make up my personal profile.

AREAS OF INTEREST

Technical Lead

Solution Architect

Manager Technical Support/Sales

Education

Degree of Technology in Computer Networking

Estácio de Sá University - Done

Degree Electrical Engineering (Telecom)

EXPERIENCE

Cisco Systems – Network Consulting Engineer at Cisco Systems – PCRF and Mobile Broadband Technologies.

3GPP Spec (Mobile Broadband and PCRF policies in VoLTE/IMS/4G/3G), Convergent Charging (online and offline), Diameter Protocol Specialist, Intelligent Networks.

Activities:

- Assisting in the translation of requirements into a solution vision, putting together different products to build solutions as per customer requirement, raising enhancement requests to Product team as per incoming requests.

- Creating Vendor Specification (diameter), working on product documentation and IoT's.

- Presentations and Demos to Senior Management, Sales and Pre-Sales, Customers.

Specialties:

- In depth knowledge on IN protocol ( especially Diameter)

- Excellent ownership skills.

- Good debugging and Problem solving skills.

- Enjoys working as part of a team with a define goal. Knowledge sharing.

- Enjoys understanding and developing highly technical documentation.

- Enjoys learning and working on unexplored technical areas.

- Execution and enablement of Best Practices in team.

Performs analysis and diagnosis of highly complex network.

- Generates standard project documentation including detailed test plan for highly complex networks.

- Generates network configurations: Low Level Design for highly complex networks.

- Supports pre-sales activity for highly complex networks

- Plans and executes highly complex Network Upgrade and Network Migration activity

- Assists customer with deployment and strategy of highly complex tools and related Network Management Systems

- Acts as a focal point for highly complex network problem resolution.

- Act as an interface between the BU developers and implementers to verify we are recommending/designing workable call flows using best practice implementation strategies.

Cisco Systems – High Touch Technical Support ENGINEER at Cisco Systems – Mobile Tecnologies LATAM and US Team

Activities:

The Cisco Technical Assistance Center (Cisco HTTS) provides around-the-world, award-winning technical support services for Cisco products and technologies. The Latin America TAC (LATAM and US) is the team responsible to cover all critical customers in the region as ATT, Verizon and T-Mobie, providing a localized and differentiated support. As 2G, 3G, and LTE Networks - SGSN, GGSN, MME, S-GW, P-GW, HNBG. PCRF, IPSG, VPC-SI on ASR5000, ASR5500. Working together LATAM Sales and Account Team.

Project - Olympic Games 2016 Rio de Janeiro

Working as Customer Support Engineer coming from Mobility CISCO LATAM with great experience in Wireless network and now designated to attend as Technical Leader the Rio2016 Olympic Games Wireless Project Providing support to 3G and LTE for all Venues

NOKIA Networks – LTE On-site Support May 2013 Set Feb 2014.

Activities:

Working on-site of the Mobile Operator, Claro, at the O&M department, to assist and support the customer staff. Transfer Knowledge on how to operate and manage the Nokia GPRS equipment in all levels (MME and SGSN, GGSN)

Key Contributions:

Trained the customer’s staff about LTE networks and Nokia GPRS core network elements;(SGSNs ATCA and DX-200) Passed Knowledge on how to operate and maintain the Nokia GPRS network elements; Have Supported the customer to solve GPRS issues and specific node problems;

Developed periodic operating procedures and processes to be used by the Customer in the maintenance and operation of GPRS core network. Advised the customer to buy Nokia features and functionalities, to optimize and improve the network’s performance

Nokia Siemens Networks – Tim / Oi Customers – IP and GPRS Core Planner

GPRS 2012 Set / May 2013

Activities:

PS Core network design services for rollout and modernization projects

Design Documentation - Master Plan, HLD and LLD Packet Core KPI's Analysis

PS/IP optimization services to achieve committed targets Technical consulting to Pre-Sales, Implementation, Care and Customer teams Deliver customer presentations, workshops and reports - Consultive Approach Represent the PS/IP planning team in projects Sales to Delivery Process Check Work with Project Manager, Technical Managers and Care Managers supporting in Timelines, Scope, Efforts and Risks Calculation

Packet Core Dimensioning - NSN and Huawei

Nokia Siemens Networks - Oi Project Brazil - Performance Optimization & GPRS

03/2009 to 22/09/2012

Main responsibility is to accompany growth GPRS Network, developing KPIs, Fundamental Elements of PS on Nokia solution (SGSN (ATCA), Flexi NS, GGSN, CGW, DNS, and BGW), PS Optimization and signaling in the network core, defining KPIs support and interpretation troubleshooting and network support and doing a proposal with you to changes in your network

Nokia Siemens Networks – Team Lead 3G Project - Full GSM GRPS / UMTS / CISCO 2008 Sep – Feb 2009

Level 3 Support for Mobile platform PACKET Core-based solution NOKIA (DNS, LIG, Firewall, Border Gateway, Charging Gateway, FlexISN, SGSN, Nokia Traffica). UMTS / HSDPA interfaces Gn, Gi, Ga, Gb and IUPS. Administration, the OSS environment based on the proprietary NetAct CD Set 1 for integration and management elements BSS and NSS for 2G/3G networks. O&M NGN EDGE Cisco 7609 IP interconnection of all 2G/3G plan for management of alarms, signaling SS7/IP via SIGTRAN / UTRAN between BSS / NSS / Packet Core. Checkpoint FW / IPSO 3.9 and 3.6 for Internet access via APN WAP / GPRS / MMS, Cisco Access Server (TACACS + and RADIUS), MPLS, BGP and OSFP.

Nokia Siemens Networks - IPTV Project - Systems Analyst Jr Feb 2008 – Out 2008

O & M platform Siemens Home Entertainment 3.2 (CMS, Total Manager, NableHQ, Java-based application server in Solaris 10 and Oracle DB 9/10G. Proprietary solution to managing the service to User Unicast / Multicast VoD and Broadcast TV, FM Radio for DSL clients. Troubleshooting network on RME in Cisco equipment EDGE (7600 and 6500) and protocols IGMP, OSPF, BGP, Checkpoint FW / IPSO 4.2 on Nokia IP1220 equipment, LB F5 BigIP. O&M server NableHQ content ingestion, CMS, TMS and server VoD CCOR. My SQL, Verimatrix and Analyzer Protocol Probe to solve problems with image. DLA who is responsible for providing content to US.

EXPERTISE

• Knowledge of Infrastructure IP Network

Cisco Systems - PPP, Frame Relay, ATM, Ethernet. Expansion topology LAN / WAN, routing protocols (BGP, OSPF) protocol Lan switching MPLS, VLANs, IP multicast protocols (IGMP, SYNC, VLANs), addressing the design of networks (LAN Standardization), HSRP, XConnect, DSLAM, VTP, IPv6, Signaling and Network Security. Network Multivendor Juniper, Alcatel, Datacom, Huawei

• Knowledge in Infrastructure of Mobile Networks:

Network Entities

PCRF, OCS, GGSN, MME, SGW, PGW, HSGW, AAA, HSS, HLR, SPR, DNS, GGSN (Multi Vendors)

Protocols Familiarity

Diameter (Base, Gx, Gy, Sy), Radius, TCAP, MAP, CAP, ISUP, TCP, SNMP,NTP, SS7,SIP, IPTV etc

Documentation Familiarity

-RFC, RFQ, SoW,HLD,LLD,ATP/DTP, TOL, IOT test specification, Product Specification, 3GPP Specification, ETSI and TISPAN specification, Functional Specification, Configuration Guide, OAM Guide, Troubleshooting Guide etc.

CERTIFICATION

Microsoft

Microsoft Windows 2000 June 7, 2006

Microsoft Certified Professional

NCSA – LTE Solutions

Radio Access

Evolved Packet Core

CCNA – Cisco Certified Network Associate

Mobile Internet Technology for System Engineers (MITSE)

Mobile Internet Technology for Account Managers (MITAM)

Mobile Internet Technology for Field Engineer (MITFE)

EXAMS

Microsoft

070-210 • Installing, Configuring, and Administering Microsoft ® Windows 2000 Professional

NCSA – Nokia Siemens Certified Solution Associate – NCSA#0079492

CCNA/CCNP Routing & Switching – CSCO11554966

COURSES

• Nokia Siemens Networks Academy

EPC Signalling

MME/SGSN (ATCA) Operation & Maintenance

Specialties: Flexi NG 10 SAE-GW Commissioning and Operation & Maintenance

E2e Qos in Packet Switching

Packet Core Planning, FlexiNS-SG8 ATCA and FlexiNG- HC GGSN

CN3342-32N Flexi ISN 3.2 operation and maintenance (FIOM 3.2)

CN3341-32N Flexi ISN 3.2 Fees Awareness (FISA 3.2)

PF1002-01N Switching Platform and Administration Essentials

Oracle 10G

the SWPLAT - Equipment DX200/IPA2800

4Linux – Linux Fundamentals in Cloud

• Dual Top Consulting and Training

Course of interconnecting LANs and WANs

ITIL Foundation V3

Cisco Systems

Programming for Everybody (Python)

Interact closely with Technical Support inside of Boxborough Team, MA, and worked with Antonios Dakopoulos (TeamLeader), and all other guys from BXB-Team (Also I had the opportunity to meet his Managers Joe Falcone, Antony Soares to discuss about it strategies and all). I learned about the way in which they use to work, how they like to Solved your issues and etc. however, I could understand better their situation, and also avoid several situations in which could cause some mistake among the LATAM Team. My manager prepared me to give some Role to close and define process and procedures as being done in World Wide TAC and get the best practices Meet several people that are present in our daily routine but didn't know about their job roles and the criticality of their job. I could see the difference between and how handle our worse cases, chalk talks (war room) and others activities that we could improve my knowledge

IOT – Internet of Things - Jasper Wireless Experience in San Francisco – CA – May 2016

LANGUAGES

Native Portuguese

Fluent English

Advanced Spanish

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