Sebastian Crespo

Electrical Engineer

About Me

I am an Electrical Engineer working on US Naval Warships for Ocean Engineering in Pugent Sound Naval Shipyard.

  • University of Florida Graduate: December 2018.

  • Bachelor of Electrical Engineering.

  • Cumulative GPA : 3.11/4.0.

  • Relevant Coursework:

    • Microprocessor Applications.

    • Digital and Analog Circuit Design.

    • PCB Design.

    • Signals and Systems.

    • Electronic Circuits.

    • Power Electronics.

    • Electromagnetics.

    • VLSI Design.

Services

What I can do for you

Programming

(Proficient) C, MATLAB, Python, AVR assembly,HTML, CSS, VBA;

(Intermediate) C++, VHDL, LabVIEW;

(Elementary) Java, JavaScript, PHP

Software

(Proficient) Quartus, Solidworks, Altium Designer, LT-SPICE, Atmel Studio, Code Composer Studio, Autodesk Inventor;

(Intermediate) AutoCAD, Wireshark;

(Elementary) Simulink

Hardware

(Proficient) Atmel ATxmega, TI MSP432, Raspberry Pi, Soldering;

(Intermediate) Microchip PIC18F;

(Elementary) Arduino

Certifications

EIT.

Work Experiences

  • Ocean Engineering - Department of the NAVY

    Electrical Engineer | Pugent Sound Naval Shipyard
    Aug. 2021 – Present

    Designed, prepared, and revised electrical equipment for US Naval Warships such as: cameras, switches, cables, connectors, relays, sensors, motors, and microprocessors.


    Oversaw the acquisition of materials and developed Technical Work Documents (TWD) to ensure testing requirements are met.


    Collaborated with interdisciplinary team of mechanical, structural, and electrical engineers to execute revisions on circuit diagrams when alterations where made inside Naval Warships.


    Troubleshooted systems, hardware, and software, reported findings, proposed solutions to identified and reported problems, and implemented solutions


  • NASA TOSC

    Electrical Engineer I | Kennedy Space Center
    June. 2019 – Aug. 2021

    Monitored, Interpreted, and Documented incoming environmental data from environmental simulating chambers for experiment use.


    Performed data validation and quality control checks for telemetry data coming in from Marshal Space Flight Center that is used to run the environmental simulating chambers. Performed data validation and quality control checks on the data coming out of the environmental simulating chambers to ensure that it adheres to the temperature, humidity, and carbon dioxide(CO2) parameters set for the experiment.


    Oversaw the hydraulic system in the environmental chambers to verify and adjust the temperature and pressure for optimal plant growth.


    Evaluated and modified existing firewall rules with Aerodyne and AMES IT specialists to allow remote access to Test and Operations Support Contract’s (TOSC) computers for live animal experimentations. This included changing the ports allowed to talk with the computer or assigning new static IPs to the network drops



    Troubleshooted faculty electrical systems to work with Proprietary devices; such as incubators, data loggers, and microscopes.



    Supported Rodent Research Experiments on the International Space Station by implementing NASA Security network policies when configuring the network to get restricted video files for experimental use.



    Troubleshooted electrical system in a HE3D printer and configured the software of the 3D printer to work under customer’s specifications.



    Designed humidity PCB controller boards that controlled ultrasonic transducers to create water vapor through the use of high frequency sub-millimeter waves.



    Improved inventory documentation using Visual Basic for Applications (VBA) code to make a more user friendly Excel Spreadsheet for our customers that filtered out equipment based on support needed, highlighted active row and column based on cell selected, prevented file from closing until highlighted cells contained proper values, and got rid of ghost data that would impact the database when the file is exported. Won two awards for initiative and cooperation for this work.


  • Revnet

    Electrical Engineering Intern | Gainesville
    May. 2017 – Aug.2017

    Assisted in designing and developing unique and leading-edge technology, hardware, software, equipment, and systems to meet project requirements. For example, I performed algorithm development to create software that controlled a Bluetooth module using a microprocessor to connect to a GoPro camera that would take pictures depending on the facial expressions of the user.


    Participated in strategic planning with regards to program development when discussions about expanding range of optical software utilizations began to include more racial filters for target group advertising. Identified programmatic need to have more samples for the software to make better distinctions.


    Assisted senior engineers with test performances by reviewing the algorithms developed to make sure that all the requirements for operation were met, tested to see if the software could be integrated to Raspberry PI hardware, and performed troubleshooting over the code as needed. Optimized the design of the hardware that would be placed on the back of TV monitors so that target group commercials can play depending on the audience present by rewiring the PCB board to minimize space between components and designing a new case to preserve more space.


    Aided in the maintenance, modification, and test operations for target group commercial devices. Performed quality checks on all devices that were sent out to customers to make sure that the all the components worked as intended, software was installed properly, and that the devices could communicate with the database that the company had established. Modified the software so that the commercials played inside the software where the ones picked out by the customer beforehand. Assisted in customer service when technical problems occurred that the normal staff couldn’t answer such as software corruption or missing files.


  • ApexTek Labs

    Electrical Engineering Intern | Gainesville
    May. 2016 – Sept. 2016

    Developed software in Python that used motion detection and image analysis to classify objects as being human or not depending on their size, movement, and amount of moving pixels


    Developed tracking application using state-of-the-art OpenCV development tools to meet specific time requirements for a customer project that needed to calculate time of an object passing through an area.


    Assisted senior engineers in completing multi-phase projects for customers coming in with their design ideas. It was my responsibility to build an initial prototype of the customers’ designs that the senior engineers would improve upon. During the development process, I would change the design to improve integration of software or external hardware and I would test the finished prototype to make sure it operated as specified by the customers.


    Performed data validation and quality control checks for optical data captured from raspberry pi cameras to ensure that hardware was working as intended by comparing the pixel data from the raspberry pi cameras with pixel data collected from other devices.


  • Portfolio

    View My Recent Work

    Senior Design Project

    University of Florida
    • Designed and constructed an autonomous delivery rover that used collision avoidance, path following, radio-frequency identification, and fingerprint reading algorithms in C.

    • Created a Radio-Frequency Reader that interacted with RF tags of 125KHz, H-Bridges for motor control, and a Class AB Amplifier for the speaker.

    • Constructed CAD files of PCB layouts and schematic files for all my circuit designs using Altium Designer 2018.

    • Developed code in C that allowed the Atmel ATxmega64 microprocessor to compare fingerprints for identity verification.

    Tomodachi Pet

    University of Florida
    • Designed and Constructed a Tomodachi Pet using a TI MSP432 microprocessor, a photoresistor, a LM386 amplifier, and a speaker.

    • Developed an algorithm with C that would alert me to the needs of the Tomodachi pet, using the LM386 amplifier and speaker, based on the amount of light picked up by the photoresistor.

    Solidworks Project

    University of Florida
    • Designed a mechanism to rotate a Sick Lidar through an axis that uses a Denso motor, Honeywell encoder, and actuators with optical encoders.

    • Developed and assembled frames, gears, and screws in Solidworks 2018.

    Building Architecture

    Independent Project
    • Developed preliminary design layouts for a house using AutoCAD 2019.

    • Created a 3D-rendered to-scale drawing of a house.

    • Designed dynamic blocks to serve as representation of objects inside the house with adjustable dimensions.

    Contact

    Let's work together