Ronald Petit
ELECTRICAL ENGINEER
SOFTWARE DEVELOPER
Nicasio Retamales 115, Estación Central, Santiago, Chile
Email:-https://www.linkedin.com/in/ronald-petit-647008a4/
R.U.T:-
Mobile: - / - years old
Experience
Software Developer
Upwork ~ Oct. 2018 – Today (5 months)
Freelancer jobs developing a bunch of different kind of software that vary from websites (doing both,
front-end and back-end), mobile applications for Android and iOS, desktop applications for Windows,
Linux, and Mac, game programming and animation using Unity3D, virtual reality, augmented reality
programming using Unity3D, and Iot applications using Arduino and Raspberry pi, working with
programming laguages like HTML5, CCS3, JavaScript, Java, Python, C, C# and Dart.
Electrical engineer and Software Developer
M-TriGen ~ Jul. 2016 – Jun. 2018 (2 years and 3 months)
Control and communication system design through ModBus to establish a network that links to Amazon
Web Services server, in order to monitor and control remotely the TriGeneration generators manufactured
by the company, obtaining the data through devices like PLCs and electrical inverters, which let to the
possibility to check the unit’s performance over the service runtime. Update and maintenance of the local
unit system to develop tools for a better monitorization and technical service. Develop of applications
(software), and access devices (hardware), to establish a smart connection between the internet and the
company’s units (Internet of Things), and to make interactable external interface for a better customer
experience. I want to highlight the following achievements.
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The device for the communication system is a Linux server executing scripts in Python.
The PLC logic and the configuration of the PLC itself was also done by me.
The remote management on service was a routine work.
Implementation of controls for engineering through the same Linux server.
Design of a local user interface displayed over an external touchscreen driven by a single board
computer (the same one that runs the Linux server)
Development of an Android application connected to the Amazon Web Services server that
display the units belonging to each customer, along with critical information for them, giving the
capacity to control the unit through it and deploying high security measures on the Amazon Web
Services server.
Electrical Engineer
M-TriGen ~ Feb. 2016 – Jun. 2016 (5 months)
Design of control, electrical, and electronic systems, to achieve the correct function of the trigeneration
generators that the company manufactures, along with the proper documentation and the design of the
electrical drawings for the whole system. Configuration of key devices such as PLCs, to control governors,
combustion engines, read data and others, managing a team to meet the production requirements of the
generators. Collaboration with the development and research team to implement new features to the
generators dedicated to the electrical side. I want to highlight the following achievements:
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Optimization in general of the control scheme and the electrical system of the units.
Proper documentation of every design and information through electrical drawings.
Speed control for a combustion engine using single board computers.
Development of a communication system through Modbus protocol.
Management of personnel to increase the production level to a desired point.
Toxic emissions control from the combustion engine through single board computers.
Customer service and formal presentation of the product.
Management of the inventory and cost calculations to optimize productions resources and costs.
Collaboration in multiple solutions to technical problems with the generators.
Maintenance Engineer
Metro de Maracaibo ~ Jan. 2015 – Jan. 2016 (1 year)
Preventive maintenance to the electrical substations that supply power to the line one on the metro system
of Maracaibo city, caring for the proper functioning of the main components like power transformators,
medium voltage rectifiers, medium voltage interrupters, air conditioning systems of the substations and
attention to electrical faults in any service area. Personnel management to optimize the hours-men used
for the maintenances in order to meet with the annual schedule. Monitorization of the substations status
through reading data from the main PLC that controls the whole substation, and maintenance to the digital
relays that server as protection system. I want to highlight the following achievements:
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Continuous supply and without interruptions of the transport service in the whole job position
period.
Managing to resolve very dangerous faults, like short-circuits on a medium voltage level, and
collaboration on solutions to avoid a technical suspension of the service.
Supervised optimization of the control logic inside the PLC of the electrical substations.
Internship
Metro de Maracaibo ~ Sep. 2014 – Jan. 205 (4 months)
Study of the functioning and design of an electrical network to supply a mass transportation system (metro
system). Study of the internal connections and the control systems. Study of the communication system
through the entire road of the line one. I want to highlight the following achievements:
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Observation of multiple maintenances to the electrical substations.
Observation of the data gathering from the protection relays and the PLC.
Practice: supervised maintenance to the uninterrupted power supply system (UPS), that protects
the control and communication systems.
Practice: deep study of the power transformators of the substations and supervised maintenance
to them.
Education
Electrical Engineer
Rafael Urdaneta University ~ 2011 – 2015
Bachelor of Science
Claret High School ~ 1999 - 2011
Skills
Languages
Spanish as native language.
Comprehension
European Level
English
French
Listening
C
A
2
2
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Reading
C
A
2
2
Conversation
Oral
Oral
interaction
production
C
2
C
2
A
1
A
1
Redaction
C
A
2
1
Adaptation to the work environment with ease
• Leadership and team management
• Mastering on techniques to resolve problems
• Advance knowledge of the MATLAB & SIMULINK software
• Experience using single board computers and development board such as Raspberry pi, Arduino
and ODroid, specially for control systems implementation
• Basic C++ knowledge
• High experience using the AutoCAD software to design electrical drawings and electrical and
mechanical components
• High experience using the Microsoft Office software, specially Word, Excel, Power Point and
Access
• High experience using operative systems based on UNIX, like Linux and Darwin, specially,
Ubuntu, Debian, MacOS and Raspbian
• Experience designing control systems for general and technical purposes, applying simple
techniques, PID controls loops, and robust computational controllers as the HInfinite
• Experience controller transport systems (Autopilots), specially aircrafts (Thesis)
• Intermediate experience using the XPlane software to design aircraft systems
• Experience on the maintenance of electrical substations.
• Three years of experience using and programming PLC systems
• Knowledge on the design of traction electrical substations for mass transfer systems
• Experience developing communication network through Modbus
• Intermediate knowledge on the programming language Python, along with multiple experiences
developing software with that language.
• Intermediate knowledge on the programming language Java, along with multiple experiences
developing desktop and mobile applications for Android with that language.
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Basic knowledge on the programming language HTML5, along with multiple experiences
developing web applications with that language and in conjunction with CSS and JavaScript.
• Experience developing interactive applications for mobile devices (Android), and embedded
systems oriented to the “Internet of things” (IoT), with single board computers (Raspberry Pi
and ODroid)
• Intermediate experience using web services to develop applications and implements SDKs and
APIs, specially Amazon Web Services (AWS) and Google Cloud, along with the development of
cyber security and data management using AWS.
• Experience designing control systems for combustion engines.
• Experience designing control systems for air conditioning systems (HVAC)
• Experience designing and using uninterruptible power supply systems (UPS)
• Experience on Tri-Generation systems (Thermal, electrical and mechanical energy) (Micro
Combined Cooling Heating and Power systems (MCCHP))
• Knowledge on solar panels and clean energy
