Sergio Martinez work email
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Sergio Martinez personal email
Telecommunications engineer with 12 years of experience in design, deployment, monitoring, and delivery of 3G/4G/5G core network elements.My main experience is with packet core network elements: SGSN/MME/AMF, DNS,SGW/PGW/GGNS/UPF. The last two years I have been working in the design, implementation and testing of 4G/5G Private Core, KVM virtualization, HeNB-GW, SeGW and PKI. My responsibilities have included the design and integration of the platforms to the network, IP Planning and configuration. I have worked in the configuration and troubleshooting of the RAN interfaces towards de core (S1, NGAP), securing the transport between HeNBs to the Core through IP Sec using PKI infrastructure. Also I worked in the 3G/4G Packet core, coordinating and validating layer 4 configurations to external network elements (RNCs,eNBs, gNBs, STPs,DRAs), interfaces(Diameter, SS7, SCTP, UDP, TCP, S1AP,GTP, Gy, Ga, Gx, S6a, S11,) and implementation of DNS records, APNs, RAC/LAC/TAC, roaming configurations, platform upgrades, traffic migrations, network monitoring (SNMP, Syslog, Grafana)I am interested in working in technical roles in telecommunication companies related to the design,implementation and/or support of packet core network elements for 3G/4G/5G technologies
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Mcx EngineerSamsung ElectronicsReading, Gb
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Core Verification EngineerDense AirReading, Gb -
Core Verification EngineerDense Air Aug 2022 - PresentMarlow, England, United KingdomDeployment of virtual core for 4G/5G SA private networks4G SeGW and HeNB GW.Commissioning and server virtualization to deploy KVM VMsHomologate lab environment to the production platform to test new features and software upgradesCreate different environments in the lab following the product and company requirements -
Iot Core CoordinatorAt&T México Jun 2018 - Oct 2020Mexico City Metropolitan Area• Responsible for all core elements that provide IoT data and SMS services. Also responsible for the interconnection of our solution with all existing and new elements in AT&T network.• Coordinate traffic migrations for all elements in IoT Core network including VPC-DI, Core DNS, STP, DRA and SMS-C. Ensure that Network element capacity is enough to support the network grow forecast. Validate through ATP testing that all elements meet AT&T requirements to be put in production. Deliver the network elements to operation teams.• Propose new projects to be implemented, work with requirements, quotations and feasibility. For approved projects follow up the technical and financial progress. -
Ps Core EngineerAt&T México Jul 2015 - Jun 2018Ciudad De México Y Alrededores, México- Work with telecom vendors and internal areas in the integration of PS Core elements to the network. Work in architecture, HLD and LLD definition and coordinate the commissioning and integration to the network- Work with vendors in the definition of the optimal method to integrate new elements in the network. Validate that the network elements are successfully integrated to the network making ATPs, validating KPIs and creating test matrix to be executed- Ensure the network capacity is in optimal levels and work in expansion projects with vendors and internal areas- Make troubleshooting and provide solutions for issues that impact the end user and related to interoperability between vendors
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Ps Core Performance & Capacity SpecialistNextel De México Aug 2013 - Jun 2015Tlalnepantla Y Alrededores, México- Generate reports for Huawei PS Core elements (USN 9810, UGW 9811, CG 9812, and PCRF) to optimize and detect service interruptions in the network and measure license and hardware capacity. - Identify failures based on the performance statistics, analyze the scenario of failure, make traces and report the case to Operation team and Huawei Support team.- Create performance reports after a major change or upgrade in the PS Core elements to warrant uninterrupted service.- Work with Core performance tools to generate automatic reports using SQL queries for PS Core and HPPTT elements. -
Ps Core Performance And OptimizationNokia Siemens Networks Oct 2012 - Jul 2013Tlalnepantla Area, Mexico- Responsible for defining KPIs, and execute corrective actions to improve KPIs in PS Network elements. - Prepare daily and weekly reports and explain to client the top offenders of the network.- APN configuration audit and improvement.- IP routing in SGNSs and GGSNs improvement.- Review and propose design improvements, perform alarm and performance troubleshooting with Access, transmission and VAS departments. - Report directly to the client and ensure that the issues and problems are solved inside the different departments of the company. -
Core Network EngineerHuawei Dec 2011 - Oct 2012BogotaInstallation and configuration of the first LTE network in Colombia for UNE EPM Telecomunicaciones. Responsible for doing the EPC deployment and configuration. The equipment’s installed included the MME, SGW, PGW and HSS. The configuration included the improvement of the reliability of the network with geographical redundancy, implementing security measures and roaming implementation with 3G networks. The job included the support for the commercial launch of the network and KPI analysis to guaranty the quality of the network.Installation and configuration of a new 3G PS Core, which includes a SGSN, GGSN, Charging gateway and router aggregation. The task included the integration of the new core to Colombia Movil network, boards and equipment redundancy design, elements configuration and acceptance test protocol with the customer. -
Ingeniero AuxiliarIngetec S.A Apr 2011 - Dec 2011BogotáDesign of technical specifications of telecommunication, control and fire detection systems for the energy sector. Supply and commissioning revision of the control and communication systems for El Quimbo hydroelectric Project. -
Ingeniero De ProyectosEnergia Inteligente Jul 2010 - Apr 2011:The goal of my work was to coordinate the commissioning of wireless sensor networks projects by acquiring a new platform for data acquisition and presentation, so the engineers would have better tools to improve the administration of the industrial processes. The new platform allowed to reduce the costs by half and it had better performance than the previous platform. In order to implement this platform with success we made test installations in different companies to show the perfect performance of the equipment, resulting in the sale of the first project.
Sergio Martinez Education Details
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Communication Networks And Signal Processing -
Electronics
Frequently Asked Questions about Sergio Martinez
What company does Sergio Martinez work for?
Sergio Martinez works for Samsung Electronics
What is Sergio Martinez's role at the current company?
Sergio Martinez's current role is MCX Engineer.
What is Sergio Martinez's email address?
Sergio Martinez's email address is sm****@****air.net
What schools did Sergio Martinez attend?
Sergio Martinez attended University Of Bristol, Universidad De Los Andes.
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2telefonica.net, rndcore.com -
Sergio A. Martinez
London -
Sergio Martinez
Experienced Customer Service Representative Transitioning Into The It Field.Lakenheath
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