Photopia

Experience deploying/rollout of complex VAS systems in China, Ireland, Madrid Spain, Mexico, Guatemala,Peru, etc.. with big Telecommunications carrier operators.

more than 15 years of experience on roles like , support engineer, fraud and revenue assurance as manager, implementation specialist,  java programmer.

languages: 

A strong experience programming in JAVA technology, has been using solidity to programming Blockchain smart contracts applications.

Frameworks:

I have been working with Frameworks like ganache, Hibernate, Struts and the Model View Controller (MVC)

Scripting tools:

 AWK , BASH, have the ability to create bash scripts e.g :  to find out root cause to problems related to bad perfomance system within  Unix systems, send the same command and admin many servers at the same time, parse and analyze log files, etc.

Operating Systems:  

Solaris, HP Open –VMS, Linux

Cable Standards: 

Knowledge about DOCSIS 3.3, DHCP, IP and Lease Fraud detection specialist using programming skills

Databases:

Mongo, basic knowledge of oracle and SQL

Telecommunications applications: 

good knowledge about SS7, GSM networks, Prepaid Systems, handle of SMSC (Short Message Service Central), payment systems for telecommunications. VAS applications for telecommunications. TCP/IP, SMPP, signaling application layer TCAP and SCCP, VPN, CISCO ITP, IP applications, SS7 network elements as HLR, VLR, Broadcaster, smslink, Basic handle and troubleshooting Starent Packet core SGSN,GGSN, DNS , Sim applications like Gemalto’s simbrowsing, simchronize (a SIM application for contact Backup), OTA handling , M-Banking, basic knowledge about WAP Gateway, Huawei’s RBT.

Incognito Software,  Implementation Specialist , Jul 2018 to Present

Country : Mexico

Supporting a tier 1 carrier in Mexico for broadcasting Voice, Video and Internet, supporting their solution of DOCSIS and IP deliver system through CMTS.

In charge (but not limited to ) of the following tasks onsite on customer premises:

• Display a high level of technical knowledge and consistent service throughout all interactions -Drive onsite project workshops and consultation with the customer
• Provide customer-facing technical documentation, including Acceptance Test Plans
• Maintain detailed issue tracking, action items, and troubleshoot customer issues throughout the projec
• Deliver onsite and/or remote product training to customer
• Conduct knowledge transfer to handoff project to technical suppor
• Act as a liaison between the customer, sales, other professional services colleagues, engineering, and technical support
• Develop best practices for the services’ team
• Work closely with customer and project team to ensure all deliverables are executed successfully, with quality, on time and on budget-Rapidly generate customer trust and confidence
• Provide post-sales services for software implementation, upgrades and migrations

Tango Telecom, Operations Engineer, Dec 2012 - May 2018

Country: Mexico

working  in Mexico city, providing support to Telcel Mexico, Zain Africa Group, Airtel Group, Open Mobile, Claro (America Mobile), Zain Irak, LT Indonesia, Dubai.......

I'm was in Charge the following Duties :

• Participation in installation and commissioning project planning-System installation and commissioning work on customer’s sites
• Participation in customer training
• System acceptance testing and handover to customers
• Provision of hardware and software technical support
• Optimisation and troubleshooting of GSM/GPRS/CDMA networks
• Internal reporting and provision of feedback to customer
• Creation and maintenance of Customer Support documentation
• Participation in pre-shipping installation and system testing work

Telefonica, Fraud Prevention Manager, Jul 2011 - Nov 2012

Country: Guatemala

Working for Fraud prevention, analyzing call details, heavy load usage on GPRS, VOICE, SMS, checking alarms of high consumption, development of scripts in order to detect bypass (ITX Fraud), support RAO in order to detect revenue leakage and the commercial department to develop better marketing and commercial strategies, support of fraud analysts that works on 24/7 basis, develop reports and logs of economic activity about Bypass, Subscriptions Fraud, ITX , LDI, revenue of SMS , research analytics about revenue in order to detect leakages in the company services , coordinate meetings about new fraud strategies by means of Bypass and ITX and present economic results about the evolution of the many services that Telefonica serves to costumers, coordinate with managers and directors better strategies in order to stop revenue leakages made by fraud.

Claro, Value Added Services Engineer, Feb 2009 - Jul 2011

Country: Guatemala

working for several projects within companies in Central America . my job is based on admin and handle of the SMSC (Short Message service Center).
troubleshooting over GSM network, provide interconnection services to providers in order to permit traffic of SMS to our mobile subscribers or cell phone users, check links from MSC (switch equipment) to SMSC because each of the countries in central America handle SMS traffic to SMSC, obtain statistics about the use of SMS from our clients , creation of SMS reports to the manager and handle other Values added services that Costumer offers to clients also I was in charge of developing java based applications for testing SMS network or prepaid systems, getting reports from AWK parsing CDRS (one of my daily tasks), getting reports about SMS network (KPI’s, MDA, FDA) , experience on duty engineer 24x24, handling systems emergency, giving support to final users and clients as well, training to VAS commercial executives, planning network and VAS projects , coordinating with providers about the implementation on new VAS services and systems, getting reports over GPRS core (PDP, APN’s, average traffic, load traffic), planning IP traffic over new APN’s for VIP customers, basic troubleshooting on GPRS, planning maintenances window over critical VAS and networks systems, development of business tools for analyzing traffic (I have mounted oracle database in order to manage LOGS and CDRS for several VAS systems)

TATA Services, Java Developer, nov 2008 - Feb 2009

Country: Guatemala

In charge of analysis and development of JAVA aplications and web services as well, development of batch process and UNIX scripts, development and mapping of data to oracle tables from To Do’s documents and costumer cases, development of store procedures on PL/SQL

Sand Company , Java  Developer, Mar 2006- Nov 2008, 

Country: China

 I used to be in shanghai China working as QA analyst and JAVA developer, i was in charge of QA of electronic equipment and testing electronics devices such boards and products before release to market , progaming POS aplications, and some other computer languages as C++.

Programming and set up of POS Units SKB21 model, giving training to final users and writing How to of many applications running on the POS SKB21, Programming an application of remote download in Shanghai China, in charge of giving support of the Magtek Transaction devices to Trinidad Tobago, in Charge of getting Activation codes from Magtek in USA about registering devices that the company has sold to clients. Java programmer.

Universidad Francisco Marroquin, Guatemala, Electronic Engineer,  2000- 2005

Fudan University, Shanghai China, Master Computer Science, 2006

CCNA Cisco, 2003

Linux administrator LPIC-1 certification, 2021

Mongo Database Administration 2022

SMSC (Short message service center) advance administrator , 2019

References available upon request.