Mauricio Lopez, B.S.E.E.

US Citizen Fluent in Spanish adt6qq@r.postjobfree.com (240) 478- 4687

AREAS OF EXPERTISE

Internal and External Communication and Collaboration Systems Network Engineering Site Reliability Engineering System Architecting SatCom / Cellular Engineering Quality Assurance Data Analytics / Mining Project Management Project Team Lead Product Management Contract Negotiation Technical Supervision and Mentoring Sales and Technical Management Support Training and Mentoring Pre- and Post-Sales Sales and Customer Support Technical Presentations

CERTIFICATIONS AND PROFESSIONAL DEVELOPMENT

Lean Six Sigma Green Belt Certified

Corporate training for Microwave Design, CCNA/CCNP, AI/ML, VoIP/Streaming, RedHat/Ansible/KVM, vSphere/vCenter, Docker, Cisco/Fortinet, HPE/ARUBA/Poly, IoT, Selenium, C, Python, Bash, R, Tableau/PowerBI, SQL, SATCOM, DevOps, RoHS, ITIL, ISO 9001 Standards.

Certified training by Nokia-Alcatel-Lucent on Wireless standards like NR/LTE, WCDMA/HSPA, GSM, CDMA, EVDO, Wi-Fi, Antenna Design, Configuration-Operational-Planning of Cellular Base stations/NodeB/eNodeB/GNodeB.

TECHNICAL SKILLS

Antennas, Switches, Routers, Firewalls, Optical, vCenter/ESXi, KVM, NFV/SDN/SD-WAN

TCP/IP model Protocols: BGP, DHCP, DNS, HTTPS, SIP/RTP/RTCP, SSH, TCP/UDP/QUIC, DiffServ/DSCP, IPv4/6, ICMP, SNMP/Syslog/NMS, TLS/SSL, IPSEC, ARP, VXLAN, 802.11(Wi-Fi 4/5/6)

Routing protocols such as EIGRP, BGP, OSPF, MPLS, VPLS and VPN

Programing/scripting languages like C, Python, Shell/Bash, SQL

REST-APIs and formats such as JSON,YAML, XML

Traffic Engineering tools like Sandvine

Network L1-L7 Traffic Generators such as Ixia-Load, Ixia-PRO, Ixia-HawkEye, Spirent-Avalanche, Spirent-Landslide, SamKnows, Malden-MDSLA, ThousandEyes, Iperf

Data Analytics platforms like Splunk, PyCharm, Git/GitHub, Jupyter-Notebook, Tableau, Minitab, MATLAB, Power BI, and Advance Excel

Cloud platforms like GCP-BigQuery, Oracle Cloud Infrastructure

VoIP-SBC call monitoring systems like OCOM-Palladion, SolarWinds

VSAT and RF Terminal Antenna Subsystems for satellite bands (V, Q, Ka, Ku, L, C) and Circular Polarizations.

Satellite modulation and coding schemes for DVB-S, DVB-S2, DVB-S2x, SCMA

Packet sniffers like Wireshark, GL-VQT, GL-PacketScan

Mobile Standards such as GSM, WCDMA/HSPA, CDMA, EVDO, Wi-Fi, MIMO, WiMAX, TD-FDD LTE, 5G NR.

LTE interfaces and protocols: S1, X2,Gn,Gi, Iu,Uu, S5

LTE End-to-End IP network Troubleshooting and L1/L2 for RLC, MAC, PHY, MME, S-PGW, Mobile IP, WLAN

Cellular Planning tools like Cell Plan, Atoll, EDX, Planet EV, DBPlanner

Cellular Optimization tools like TEMS, Invex3g, QXDM, Nemo-Outdoor, Rhode&Swartz-ROMES -, Agilent-JDSU, X-CAL, Willtech-Blue-Rose, Comarco, Clarify, Wider, Actix, Windcatcher, Swissqual-NQDI,QCAT, eDAT, X-CAP, MapInfo

Signal Generator, Signal Analyzer, Spectrum Analysis, Protocol Analyzer, Oscilloscope (Agilent E4432B, E4438C Signal Generators, Agilent 8960 Wireless Communication Test Set, Tektronix TDS684B Oscilloscope), Base Station Tester, LabVIEW.

Salesforce, Jira, Confluence, SAP, OneDrive, MS-SQL, Visio, Excel, Power Point, Word, and MS- Projects.

SELECTED PROFESSIONAL EXPERIENCE

Hughes Network Systems

Systems Engineer

January 2017 to November 2022

Support for planning, integration, and implementation to launch Network Gateways and VSATs in North Central and South America markets and to comply Zero-Touch-Provisioning policies and maximize field deployment initiatives.

Support, monitor and resolve End-to-End network performance for Broadband Internet Services covering North, Central, and South America.

Provide improvements of service quality assurance on network monitoring techniques, optimization, performance, troubleshooting network problems/outages, and scheduling upgrade times.

Certify, qualify and manage the service release of Data, Video and Voice across all VSAT types and RF and Virtualize Gateways.

Support the configuration of Linux servers, VMware hosts, NetApp, PDU, GPS Receivers, NTP servers, SD-WAN Gateways, Cisco/Fortinet devices to optimize and implement new networking technologies across Data Centers.

Provide network requirements to System Developers, Infrastructure Vendors and Manufacturing to qualify network defect corrections, software upgrades, and security vulnerabilities.

Provide Engineering Level IT Support to Network Infrastructure, Network Operation Centers and Customer Support Centers to resolve network outages and service degradations.

Optimize and shape Consumer Internet Traffic like Browsing, Video-Streaming, VoIP and other services to maximize and guarantee QoS service level agreements.

Support for the implementation of system improvements and new services like Multi-transport solutions, virtualization gateway, cloud-connectivity.

Generate and deliver executive status reports to provide network anomaly analysis and its resolutions.

Integrate and manage advance Hughes Innovated Transport technologies to be functional portion of the Network Services supported.

Support the launch of international networks, coordinating and advising highly demanded integration and roll out deadlines.

Champion the launch of major QoS/QoE metrics for Internet Real Time Services - and led the improvement of the algorithm to measure Voice Quality for Consumer and Enterprise services.

Proposed and implemented Industry Standards, E-Model (G107), as the model to be used to measure Quality of Experienced QoE across Enterprise and Consumer Voice/Data services.

Hughes Network Systems

System Engineer - Product & QA

October 2012 to January 2017

Support a concurrent engineering team member working with the Product Line Manager, Design Engineers, Manufacturing Engineers and Field Engineers as part of the systems & product develop process.

Develop Comprehensive Test Plan, design and execute UAT/Quality Acceptance Tests in a laboratory environment for the entire Hughes product line and systems such as ARUBA, Poly, Cisco, Fortinet, SD-WAN Gateways, Mobile Satellite Terminals, Areo, Maritime and Satellite Ground Stations.

Complete HW and SW reliability, maintainability and serviceability analysis using industry tools such as Sherlock.

Assess emerging technology’s capability to be reliably integrated into high volume designs of VSAT terminals & network operation equipment. This work includes the development of zero-defect strategies/techniques and training for the design of circuits, test modes or processes to quantify design margin, product and systems quality gates.

Design and implement an in-line manufacturing Zero Defect Gate & sampled Product Assurance Test (PAT). The zero-defect gate and PAT shall verify system level features/requirements and results summarized with a Quality Metric that includes software performance/stability.

Provide in-house training to the Concurrent Engineering Team and implement the Hughes Quality Management System as it relates to the Concurrent Engineering development processes.

Hands on experience in voice and data network engineering using industry test tools such as Spirent or IXIA, for cellular, satellite, cable, DSL, Wi-Fi, WLAN and WAN/LANs.

Work with the System Release and Launch Alpha/Beta teams, develop service oriented quality metrics (i.e. customer call rate, truck roll rate, advanced warranty replacements) to serve as quality gates to service launch. Includes post launch analyses of service quality metrics for fast feedback and corrective/preventive actions.

Develop database queries using Crystal Report, BigQuery, MiniTab and Excel to data mine and correlate service interruption events to customer call rate, truck roll rate, etc. and drill down to root reasons and calculate normalized failure rates.

Work in a Concurrent Engineering team, develop “zero defect models" to predict probability of shipping zero defects (ppm) based upon defects injected by design, parts, process, test and develop comprehensive end-to-end test coverage strategies commensurate to meet the zero defect goal.

Work in a cross-functional team to extract the model inputs from Manufacturing, Contract Manufacturer, Engineering, Test and Supplier Quality is essential.

Work with manufacturing and contract manufacturer to verify and correct if in-process defect control and outgoing quality after sample burn-in and product audit testing will not achieve end customer desired ppm goal.

PCTEL

Engineering Support Services –Technical Member

January 2006 to January 2012

Assist Infrastructure Developers and Cellular Network Operators to debug network features, interoperability analysis, acceptance testing, and network performance optimization.

Support product development teams by providing product technical evaluations concerning functionality of new features and overall performance of pre/post-release products.

Perform time and resource management in conjunction with assigned projects.

Frequently communicate and interact with Internal groups:

oSales team – Support product sales and address technical questions; expressing complex technical issues in clear, business-oriented terms.

oMarketing team – Provide feedback regarding product performance and recommend enhancements. Translating customer-driven or user-centric needs into well-articulated product development requirements.

oEngineering team – Share cellular systems engineering expertise with product development engineers. Explaining the use-cases and applications for products such that the hardware and software engineers can better understand the requirements and can design products with the user-experience in mind.

Communicate extensively with customers and vendors (e.g., sub-contractors) including decision-makers and technical contributors.

Administer training and other technical presentations, answer technical questions, give direction to project

Other Professional experience upon request.

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