Freelancer profile translated to English.
Back to original languageAbout Mariano
Telecommunications Engineer with over 25 years of experience in the design, implementation, and management of complex network infrastructures in high-availability environments. Expert in network performance optimization, implementation of robust security solutions, and efficient project management.
Over 15 years developing software for various projects and technologies including C/C++, UNIX, Linux, Embedded Systems, Databases, etc...
Spanish
Native or bilingual
English
Conversational
Italian
Conversational
Remote only
Primarily works remotely
Experience
- FreelanceC/C++ Embedded Software Development EngineerJanuary 2018 - Today (8 years and 5 months)Madrid, SpainSince 2018, I have been exploring various system prototypes using different 8/32-bit MCUs (PICs, AVR, ESP8266, ESP32, STM32) with their respective development tools (Arduino IDE, MPLAB with XC8, AVR-GCC, ESP-IDF, SDCC, STM32CubeIDE, STRM32CubeMX) on various development boards. Always using C language, and where possible (ESP32 and STM32) using freeRTOS as a Real-Time Operating System. Communication protocols UART, Rs485, ISP, I2C, CAN, Ethernet.
- Telefónica SolucionesSENIOR NETWORK ENGINEERSeptember 2009 - December 2017 (8 years and 3 months)Torrejón de Ardoz, SpainDesign and implementation of IP network architectures and IP telephony networks in mission-critical environments (Military Emergencies Unit - UME). IP addressing planning, network topology design, routing with OSPF, BGP protocols over DMVPN technologies. Integration of multiservice networks over satellite, UHF/VHF radio, and cellular networks (GSM/UMTS). Implementation of Cisco PIX Firewalls and advanced management of Call Manager Express.Responsible for integrating the UME's IP Telephony Network with Personal and Vehicular Tactical Radios (UHF) Spearnet. Providing corresponding training.Responsible for the implementation of the SERVCOM System developed by Indra (integrated management of satellite, cellular, and military-specific communications) in all deployable UME units, automatic generation of work databases (Linux), and installation on dedicated CISCO hardware.
- Telefónica SistemasNETWORK ENGINEER / ICT CONSULTANTDEFENSE AND MILITARYSeptember 1995 - December 2008 (13 years and 3 months)Madrid, SpainConsultant at Telefónica de España, S.A.U. (Defense and Security Department) performing the following tasks:
- Engineering and implementation of the IP LAN/WAN network for the SCTM program. IP, PPP, X.25, and OSPF protocols. CISCO switching and routing equipment.
- Specification and integration of gateway software with the SST SCADA (Telettra/ALCATEL).
- Design, Engineering, and implementation of the Data Network for the Synchronous Equipment Management System (SDH). CLNS, PPP, X.25, and IS-IS protocols.
- Design and implementation of the Multiservice IP Network to support IP communications for various systems, including the Military Messaging System X.400 (SICOMEDE), and the SCTM Network Management and Supervision Systems. IP, PPP, X.25, CLNS, OSPF, CDP, ODR, ISIS protocols.
- Implementation of an SNMP Management System, based on HP OpenView and CISCO Work2000 tools, for the SCTM Multiservice IP Network. SNMP, RMON protocols.
- Working group for secure communications of the Defense Staff (EMAD). Evaluation and characterization of traffic from various military communication encryptors for subsequent use in projects, voice encryptors, fax, V24, V35 data encryptors, and IP encryptors.
- Design and implementation of the Voice and IP Data communications gateway (primary and backup) to serve operational zones (Kabul, Lebanon, etc.). This Gateway integrates Voice and Data (encrypted) communications via satellite (SECOMSAT) into the Ministry of Defense's SCTM Multiservice IP Network.
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Education
- CCNA Courses, CCNP Courses (Routing and Switching), CISCO Call Manager Course, CISCO IP Telephony CourseSATEC, Global Knoledge2000Certificación CCNA Cursos CCNP (Routing y Switching) Curso CISCO Call Manager Curso CISCO Telefonía IP
- Technical Telecommunications EngineerEUITT of UPM1988Ingeniero Técnico de Telecomunicación (Equipos Electrónicos)
Certifications
- CISCO CCNACISCO2000