Edgar M. Trujillo Sotelo
Computer Engineer
Laredo,TX
Summary
Self-motivated Computer Engineer with hands-on experience in software development, embedded systems, and AI integration. Skilled in building innovative solutions for real-world problems, including environmental monitoring, voice/chat bots, and custom hardware systems. Adept at collaborating across disciplines and applying both technical and creative approaches to engineering challenges.
Overview
7
7
years of professional experience
4
4
years of post-secondary education
1
1
Certification
2
2
Languages
Work History
Software Engineer – Dark Sky Environmental Monitor
Freese and Nichols
San Antonio, TX
08.2024 - 05.2025
- Developed scalable and maintainable code, ensuring long-term stability of the software.
- Integrated new technologies into existing systems, increasing capabilities and improving overall performance.
- Designed and developed a scalable Java-based graphical user interface (GUI) for real-time analysis of sky quality using SQM sensors.
- Implemented automated image capturing using solar-powered embedded systems, ensuring autonomous operation in remote areas.
- Integrated wireless data transmission and local backup storage for uninterrupted environmental monitoring.
- Collaborated with cross-disciplinary teams (electrical and mechanical engineering) to align hardware and software systems.
- Applied modular design principles, enabling easy expansion or adaptation of the system for other environmental applications.
AI Developer - AI Voice & Chat Bot
Freelance Use
San Antonio, TX
12.2024 - 05.2025
- Compiled, cleaned and manipulated data for proper handling.
- Analyzed large datasets to identify trends and patterns in customer behaviors.
- Developed polished visualizations to share results of data analyses.
- Developed a conversational AI assistant using Rasa and Coqui TTS for handling patient scheduling via WhatsApp and phone calls.
- Integrated VoIP systems for real-time voice interaction with natural-sounding text-to-speech.
- Connected the bot with Google Calendar and Zoho CRM for end-to-end automation of appointment management.
- Engineered secure data logging using Google Sheets with backup capabilities for patient interaction records.
- Designed adaptive conversation flows using generative AI for dynamic and natural interaction with users.
Project Engineer - Ostrich Feeder System
San Antonio Zoo
08.2024 - 05.2025
- Provided technical expertise throughout all phases of the project, ensuring accurate execution of designs and specifications.
- Designed a mechanical, slow-release feeder using 3D-printed components and basic physical timing mechanisms.
- Prototyped and tested the system in collaboration with zookeepers to match ostrich feeding patterns and behavior.
- Created durable and low-maintenance parts suitable for outdoor animal enclosures.
- Delivered a functional system that operated without electronics, ensuring maximum reliability and minimal upkeep.
- Applied CAD and additive manufacturing knowledge.
Embedded Systems Developer
San Antonio Zoo
08.2024 - 05.2025
- Developed an automated gate system for bird enclosures using continuous-rotation servo motors and a wireless controller.
- Designed lightweight, bird-safe components and configured the system for low-voltage battery operation.
- Implemented remote control logic and timing to automate the opening/closing sequence at a distance.
- Engineered a creative gate design resembling medieval-style doors, blending function with thematic aesthetics.
- Optimized battery use for extended operation without frequent replacement, considering avian safety and simplicity.
Software Dev. - Smart Point-of-Sale (POS) System
Freelance Use
05.2024 - 11.2024
- Designed and implemented a desktop application with user authentication, access control, and inventory management features.
- Built a custom UI using Python and Tkinter with role-based functionality for admins and sales staff.
- Automated sales logging, inventory updates, and low-stock alerts to streamline daily retail operations.
- Integrated features like secure user ID generation and customizable password resets for better usability.
- Enabled fast report generation and implemented backup and recovery systems to ensure data integrity.
- Demonstrated efficiency gains and user satisfaction during real-world testing with simulated business scenarios.
Cashier | Floor Associate
T.J. Maxx
06.2018 - 04.2022
- Counted money in cash drawers at beginning and end of shifts to maintain accuracy.
- Welcomed customers and helped determine their needs.
- Maintained a balanced cash drawer, ensuring accurate accounting at the end of each shift.
- Operated cash register for cash, check, and credit card transactions with excellent accuracy levels.
- Greeted customers entering store and responded promptly to customer needs.
- Assisted customers with returns, refunds and resolving transaction issues.
- Assisted customers with inquiries and provided exceptional service, resulting in positive feedback from shoppers.
- Used POS system to enter orders, process payments and issue receipts.
Education
Bachelor of Science - Computer Engineering
The University of Texas At San Antonio
San Antonio, TX 08.2022 - 05.2025
Associate of Science - Engineering
Laredo Community College
Laredo, TX 08.2020 - 05.2022
Skills
- Software Development (Python, Java, C, JavaScript)
Embedded Systems
Graphical User Interfaces
Voice over IP (VoIP)
Databases & Automation (API)
3D Modeling & Fabrication (CAD design, 3D printing)
- Conversational AI
- Generative AI integration
- Data Analysis & Logging
- System Monitoring & IoT Integration
- API Integration
- Problem Solving & Critical Thinking
- Project Management & Team Collaboration
- Creative Design Thinking
- Self-Driven & Proactive Engineering
Certification
Certified SolidWorks Associate (CSWA) – Dassault Systèmes Issued: Dec 2016 Credential ID: C-YRPQ9RUD63
Timeline
AI Developer - AI Voice & Chat Bot
Freelance Use
12.2024 - 05.2025
Software Engineer – Dark Sky Environmental Monitor
Freese and Nichols
08.2024 - 05.2025
Project Engineer - Ostrich Feeder System
San Antonio Zoo
08.2024 - 05.2025
Embedded Systems Developer
San Antonio Zoo
08.2024 - 05.2025
Software Dev. - Smart Point-of-Sale (POS) System
Freelance Use
05.2024 - 11.2024
Bachelor of Science - Computer Engineering
The University of Texas At San Antonio
08.2022 - 05.2025
Associate of Science - Engineering
Laredo Community College
08.2020 - 05.2022
Cashier | Floor Associate
T.J. Maxx
06.2018 - 04.2022
Certified SolidWorks Associate (CSWA) – Dassault Systèmes Issued: Dec 2016 Credential ID: C-YRPQ9RUD63
12-2016
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