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John L
@jlesmesforero
Senior Telecommunications Engineer
Colombia
Spaans, Engels
Over mij
I am a Systems Engineer with over 20 years of experience in the design, implementation, and optimization of telecommunications networks. I specialize in managing mobile network infrastructure, RAN, and IP security. I am a technical team leader focused on process automation and operational analytics to drive strategic decision-making.
Skills
John L
offline •
Gemiddelde reactietijd: 1 uur
Bekijk mijn diensten
Technische ondersteuning
I will troubleshoot and design your network infrastructure
Technische teksten
I will professionally translate, proofread, or rewrite your technical documents
Werkervaring
Regional Field Engineer
Telefonica Moviles España SA • Fulltime
Dec 2020 - Jun 2026 • 5 yrs 6 mos
• Led a team of over 30 Tier 1 engineers, consistently meeting 100% of established SLAs for corrective and preventive maintenance. • Designed and implemented contingency plans for the transmission network (DSLAM, DWDM), achieving a 30% reduction in critical fault analysis times through automated dashboards in Power BI and Grafana. • Audited and performed troubleshooting, configuration, and ongoing maintenance of mobile and fixed networks involving DSLAM, DWDM, HL3, HL4, and HL5 equipment. • Coordinated and validated Tier 1 contracts as well as contracts for the deployment and implementation of new equipment and technologies in the assigned region. • Supervised contractors during the receipt, technical testing, and final acceptance of new sites entering production. • Ensured comprehensive support for all critical power components, managing everything from AC infrastructure (transformers and switchboards) to DC systems (battery banks and backup inverters).
Huawei
Fulltime • 5 yrs 3 mos
Wireless Network Engineer
Sep 2018 - Dec 2020 • 2 yrs 3 mos
• Led the implementation and startup of the Huawei NetEco centralized management system, successfully integrating the first 120 pilot sites into the client's network. • Managed the integration of over 1,500 new sites nationwide, covering sector expansion, carrier integration, and direct support for Movistar's mobile network. • Planned and coordinated the deployment and integration of cutting-edge Radio Access Network (RAN) technologies, including IoT, Narrowband, eMTC, Pico BTS, and Micro BTS. • Designed and implemented mobile access (RAN) network solutions tailored to various Internet Service Providers (ISPs) in Colombia. • Executed hardware and software testing and validation for Huawei, operating advanced testing platforms and live production environments.
Quality Leader | Huawei Technologies Co. Ltda
Sep 2015 - Sep 2018 • 3 yrs
• Coordinated the Quality Assurance (QA) group for the FLM project with client Telefónica, overseeing the proper execution of preventive and corrective maintenance. • Verified and ensured quality in technical reports and the final delivery of critical tasks and emergency field repairs. • Led and evaluated the performance of technical professionals within the quality team, ensuring strict adherence to operational standards and client KPIs. • Trained field personnel in fault diagnosis and verification methodologies, reducing error margins in deliverables.
