Embedded Software Developer

Main Projects:

a. Fiscal Memory
Description: Architect/design and develop an encrypted memory device placed on
thermal receipt printers to store transactions in shops. This information is used by
government for tax audit.
Technologies: Microprocessor based hardware design, PCB, firmware developed on C
language and assembly, Avr processors from Microchip. Communication busses:
RS232/UART, SPI. Communication protocol definition to communicate memory device
and PC point of sale software. DLL implementation to support designed protocol on
Windows OS (C++). Thermal receipt printers: NCR 7197 and NCR7197sII. XTEA and
AES128 encryption algorithm, Whirlpool digital signature.
Milestones: Sales volume of +4000 units

b. Keypad for fleet management user interface
Description: Architect, design and develop a truck driver interface to store events
during goods transportation routes (accidents, stops, merchandise loading, unloading).
It is also used to collect truck telemetry like temperature of goods. The interface is
constantly in contact with fleet management device for data transmission.
Technologies: Hardware design, PCB, firmware in C language and assembly, Avr
processor from Microchip, FreeRTOS. Communication interfaces: UART, 1-Wire,
SAE/CAN protocol, LCD-4bit. Protocol definition to communicate with data analytic
system that stores events in real time. DLL developed for integration on data analytics
servers using (C#). Support configuration software application developed in VBNET to
configure keypads on the field. Integration of keypad with common market fleet
management units: Efora, Queclink, MixTelematics.
Milestones: Sales volume of 600 units (main customer Shell in Brazil)

c. Barcode system implementation for production control in CASTFILM, BOPP lines
Description: Architect, design and develop a barcode system that register production
of plastic film bobbins. Main control parameters were bobbin weight, size, operator,
thickness, timestamp, unique barcode assigned.
Technologies: Visual basic 6 application running over windows that provides user
interface to operator to automatically register plastic bobbins produced, with




automatic weight collection and transmission to company AS400 database servers.
Integration of barcode printers (Zebra). Balances integration by deploying Zigbee low
power network devices, built based on xbee modules. Communication interfaces:
TCP/IP, Ethernet, Zigbee.
Milestones: Customer achieved 8% production increase impact by implementing
this control system.
d. Hmi implementation for operation and monitoring of BOPP bobbin production line
Description: Architect design and develop an HMI scada system to replace obsolete
Telemecanique system. This system interfaced with Telemecanique PLC by means of
etherway protocol (kind of Modbus over coaxial ethernet network)
Technologies: Hardware design of a protocol conversion gateway from etherway to
Modbus Rtu, PCB and firmware. Processor Avr from Microchip. Development of Scada
using Azeotech package (www.azeotech.com)
Milestones: Customer achieved 8% production increase impact by implementing
these controsl system.
e. Design of HVAC system for operation optimization of cinema
Description: Architect, design and develop a specialized gateway hardware and
sensors to collect cinema ambient variables (temperature, humidity), and main
projection equipment variables (power consumption) and send the information via
TCP/IP network to SNMP monitoring system
Technologies: Hardware design of gateway node, PCB and firmware. Avr processor
from Microchip. Communication interfaces: TCP/IP, Ethernet, RS232

Projects: Technical sales lead for the following accounts: Movilnet-Verizon/Venezuela,
Setar/Aruba, Centenial/Puerto Rico
Main responsibilities:
- Technical closure of offers
- Help account manager with customer relationship management
- Technical strategy definition
- Technical support to project managers with the proposals awarded
- Relationship with internal product houses for features requirements, material
forecasting, sales forecasting.
Competence areas and Technologies
- Wireless network architecture (3GPP standard, CDMA y GSM)
- Backhaul networks (PDH/SDH, microwave links)
- Backbone networks (Core routers IP/MPLS)

Milestones: Three years consecutive recognition in the "achievers club" for exceeding
sales expectation. First sale in CALA region of Lucent SDHLR (distributed home
location register database for cellular communication networks) with a value of 10M$.

Project: Acquisition card for electrical measurement in rock cores taken from oil wells
Main responsibilities:
- Card design and development
- Measurement setup definition




Technologies:
- Hardware design
- PCB design
Milestones: The work methodology proposed: measure rock cores in parallel
electrodes by using voltages pulses sets a new research path for the lab team, by
looking for correlation between electrical and geophysical properties of the cores.