Pablo Sebastián Sánchez, VoIP Developer in Córdoba, Cordoba, Argentina
Pablo Sebastián Sánchez

VoIP Developer in Córdoba, Cordoba, Argentina

Member since August 21, 2015
Pablo is a software/telecommunications engineer with a strong background in SW development, project management (agile and traditional), networking/VoIP, and electronics. He has experience leading SW development/IT/Testing teams in multi-cultural environments, and is a proactive fast learner. He also has experience designing and implementing software (Java, C/C++, Android, Assembler, VBA, Perl, Shell Scripting).
Pablo is now available for hire




Córdoba, Cordoba, Argentina



Preferred Environment

Git, Linux, Windows, QTcreator, MS VS, Eclipse.

The most amazing...

...framework I've built is an interworking framework to make SIP apps, like a RFC 3428 to TS 24.011 bridge. It allows non-RFC-compliant interconnecting stacks.


  • Android Architect/Developer

    2015 - 2015
    Startup (Social location app)
    • Architected and developed a social location app prototype.
    Technologies: Android, Android SDK, Java, Eclipse, Android Studio
  • Trainer

    2015 - 2015
    Foundation Nativos Digitales (Mercadolibre)
    • Trained developers in Java and Android.
    Technologies: Android, Android SDK, Java, Eclipse, Android Studio
  • Senior Telecommunications Engineer/Project Manager

    2013 - 2015
    Claro (AMX)
    • Managed projects for VAS development projects.
    • Evaluated and selected VAS platforms (Starhome, Tecnotree, Emblacom, Gemalto, etc).
    • Engineered new VAS.
    • Coordinated VAS deployment.
    • Coordinated and/or executed acceptance tests.
    • Troubleshot VAS-related issues.
    • Created budgets, documentation, and presentations.
    Technologies: Project Management, Value-added Services for Mobile Networks
  • Senior Software Engineer

    2012 - 2012
    • Developed a compiler for a WDL (Work Definition Language) used to convert the WDL into JMeter's XML configuration files to improve the time to develop test cases.
    Technologies: ANTLR, Java, XML, JSON, JavaScript, Perl, Shell Scripting, Web Services, Domain-specific Language, QA Automation, Performance Testing, JMeter
  • Senior Software/Telecommunications Engineer/Project Leader

    2004 - 2012
    • Led several technical teams (software testing/equipment interoperability certification/software development).
    • Designed and developed a performance test tool for SIP servers.
    • Designed and developed a SIP interworking framework to create SIP services, like a RFC 3428 to TS 24.011 bridge, a SIP registrar, and a SIP stacks interworking service.
    • Designed and implemented data and voice networks.
    • Integrated SIP equipment.
    • Trained development/integration teams.
    • Evaluated and purchased IP-PBXes, APs, AP controllers, routers, and switches.
    • Managed projects.
    • Tested software in a VoIP system project.
    • Developed new features and maintained a wireless communication system used by the EEUU police department.
    • Developed technical documentation for many projects.
    • Worked as a Java developer/tester in an RFID assets tracking project.
    • Designed and executed Linux embedded performance tests in an RFID assets tracking project.
    • Performed software production process related tasks (CMMI 5).
    • Worked as a requirements engineer for a set-top box project.
    Technologies: C, C++, Perl, Java, MySQL, Linux, Linux Embedded, Windows, Shell Scripting, VoIP PBXes/Proxies, SIP, RTP, RTCP, SDP, Routing, Switching, Security, TCP/IP, PSTN, Mobile Telephony, LAN/WAN/Wireless Networks


  • RS232-OBDII Interface (Development)

    The hardware and software for a RS232 to OBDII (ISO 9141-2) interface. It is based on a PIC 16F628 and developed in C and Assembler.

  • Home Automation System Using Power Line Communication (Development)

    The hardware and software of a home automation system using Power Line Communication (compliance with EN50065-1). It is based on the TDA5051 modem, PIC 16F628 (slaves) and PIC16F877 (controller). It was developed in C and Assembler.

  • Automatic Acid Battery Charger/Equalizer (Development)

    Hardware and software for an automatic acid battery charger/equalizer. It is based on a PIC 16F877 and developed in C and Assembler.

  • SIP Voice Echo Server (Development)

    A SIP voice echo server which can be used to test SIP phones. Developed using PJSUA2 and QT.


  • Languages

    Perl, C, XML, Java, Visual Basic for Applications (VBA), C++, Assembler, UML
  • Frameworks

    Core Telephony, OpenSIPs, Android SDK, Qt, Selenium
  • Tools

    Kamailio, Microsoft Office, Wireshark, Rational ClearQuest, Git, Microsoft Project, Android Studio, Eclipse IDE, Apache JMeter, FreeSWITCH, Microsoft Visual Studio, Cisco Unified Communications Management Suite, ANTLR
  • Platforms

    Windows, Linux, Android, NetBeans
  • Industry Expertise

    Project Management
  • Other

    Routing, Ethernet, Proteus VSM, Microcontroller Programming, CCNA, TCP/IP, VoIP, SDP, SIP, Network Programming, Requirements & Specifications, Wireless Protocols, Performance Analysis, SSL, RESTful Web Services, RTCP, RTP, Unix Shell Scripting, NAT, MPLAB
  • Libraries/APIs

  • Paradigms

    Scrum, Load Testing, Test Automation, CMMI, Object-oriented Programming (OOP)
  • Storage



  • Master's degree in Data Networks
    2007 - 2011
    UNLP (Universidad de la Plata) - La Plata, Argentina
  • Associate's degree in Project Management
    2009 - 2010
    PMValue - Buenos Aires, Argentina
  • Associate's degree in Data Networks
    2000 - 2001
    Cisco Networking Academy - Córdoba, Argentina
  • Bachelor's degree in Telecommunications Engineering
    1997 - 2001
    Universidad Blas Pascal - Córdoba, Argentina

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