Summary
Overview
Work History
Education
Skills
Languages
Technical Skills
References
Timeline
Generic

Sergio Martínez Rojas

Mexico City

Summary

Dynamic project leader with extensive experience at Telcel, excelling in network testing and hardware integration. Proven track record in strategic planning and resource coordination, driving successful project outcomes. Adept at performance analysis and fostering team collaboration, ensuring project milestones are met while enhancing customer service excellence.

Overview

23
23
years of professional experience

Work History

Head of Project Engineering

Telcel
Mexico City
09.2017 - Current
  • Led planning and coordination for new Internet firewall and router implementation.
  • Coordinate replacing HRAN and switches with minifabric technology (spine and leaf).
  • Coordinated testing and commissioning of Volte Core in virtual technology.
  • Executed rollout to upgrade all VoLTE network nodes with latest software version.
  • Managed issues swiftly, demonstrating strong problem-solving skills.
  • Guided team members on task assignments to enhance productivity.
  • Developed processes ensuring successful project completion.
  • Coordinated resources across departments for project success.
  • Conducted regular status meetings with internal teams and external partners to ensure alignment.
  • Identified project risks and developed mitigation strategies to address potential issues.
  • Maintained comprehensive records of all project-related documents for reference.
  • Managed multiple projects simultaneously, prioritizing competing deadlines effectively.
  • Drafted progress reports for executive leadership team to facilitate informed decision-making.

Head of Acceptance Software

Telcel
Mexico City
01.2010 - 08.2017
  • Conducted acceptance hardware testing and integration of packet network equipment for 3G and 4G technologies.
  • Performed performance tests on SGSN, MME, and GGSN devices from Ericsson, Nokia, and Huawei.
  • Migrated Gb interface from frame relay to IP to enhance data transmission efficiency.
  • Validated software upgrades for core network equipment including MSC, BC, RNC, BSC, and MGw.
  • Integrated RNC and BSC into SGSN pool to improve network reliability.
  • Executed acceptance tests for Cisco and Juniper routers and switches to validate performance.
  • Generated comprehensive reports summarizing key performance indicators on a weekly, monthly, and quarterly basis.
  • Collaborated with senior leadership on strategic planning initiatives for future projects.
  • Developed project plans, established timelines, tracked progress, and ensured compliance with deadlines.

Analist of Acceptance Switches

Telcel
Mexico City
09.2005 - 12.2008
  • Executed acceptance hardware tests and integration of core network equipment for GSM and WCDMA technologies.
  • Conducted performance tests on I/O devices including APG40, APZ 212 50, APZ 212 40, and APZ 212 33.
  • Performed hardware expansions for MSC, MSC Server, MGw, BSC, and BSC/TRC systems.
  • Validated expansions in voicemail equipment through rigorous testing procedures.
  • Integrated RPMO functionality to enhance system capabilities.
  • Completed acceptance tests for RNCs from Ericsson and Nokia.
  • Managed deployment of MSC Server utilizing Blade Cluster architecture.

Analist of Data Services and Add Values

Telcel
Mexico City
06.2002 - 08.2005
  • Generated network performance analysis with recommendations for enhancing data network services (GPRS and EDGE).
  • Produced performance reports of data services using switch statistics to monitor network failures.
  • Standardized formulas for evaluating data service across all América Móvil companies in a comprehensive document.
  • Developed GPRS/EDGE coverage maps utilizing MapInfo software for strategic planning.
  • Presented to Telcel regional offices on effective use of SMART Tool for evaluating data services and added value performance.
  • Compiled documentation to size data network requirements across various regions.
  • Created statistics module within SMART Tool to assess prepaid network performance.

Education

Communications And Electronic - Engineering

National Polytechnic Institute
Mexico City
01-2001

MBA - Economics

National Polytechnic Institute
Mexico City

Skills

  • Project management and strategic planning
  • Network testing and hardware integration
  • Performance analysis and risk mitigation
  • Team leadership and building
  • Resource coordination and problem solving
  • Adaptability and flexibility
  • Customer service excellence

Languages

Spanish
First Language
English
Advanced (C1)
C1

Technical Skills

Software Applications: MS Office, Alex, UNIX / Linux (Basic), Project, Power Bi (Basic) 

GIS Applications: MapInfo

Statistical Analysis Applications: Brio Query, SMART, Tems Visualization, SMMICS

References

References available upon request.

Timeline

Head of Project Engineering

Telcel
09.2017 - Current

Head of Acceptance Software

Telcel
01.2010 - 08.2017

Analist of Acceptance Switches

Telcel
09.2005 - 12.2008

Analist of Data Services and Add Values

Telcel
06.2002 - 08.2005

Communications And Electronic - Engineering

National Polytechnic Institute

MBA - Economics

National Polytechnic Institute

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Sergio Martínez Rojas