Jeshua Linder Jiménez
Full Stack & Embedded Software Engineer
I craft end-to-end solutions to seemingly closed problems, bridging the gap between hardware and software with innovative engineering.
Technical Lead at Roadeo Inc.
at Loxodon-1 Bi-Propellant Liquid Engine Rocket Project (UPRM)
Full-Stack Architecture Expertise
Frontend Development
- Rocket Live Sensor Visualization
- Interactive Dashboard Design
- Remote Avionics Control Interface
Backend Development
- API Design & Development
- Database Architecture
- Real-time Data Processing
DevOps & Cloud
- Containerized Deployments
- CI/CD Pipeline Automation
- Scalable Infrastructure
Skills & Technologies
A comprehensive toolkit spanning full-stack development, embedded systems, and modern DevOps practices. Always learning, always building.
React
TypeScript
JavaScript
HTML/CSS
Tailwind CSS
Dart/Flutter
Swift
Python
C++
C
Java
Node.js
Assembly
SQL
Lua
Docker
GitHub Actions
Firebase
Vercel
Linux
Virtual Machines
Arduino/C++
Microcontrollers
Embedded Software
MQTT
InfluxDB
Git
REST APIs
Stripe API
Google APIs
Twilio
Xcode
Android Studio
Full-Stack Development
End-to-end web applications with modern frameworks and best practices
Embedded Systems
Microcontroller programming and IoT solutions for real-world applications
DevOps & Cloud
Scalable infrastructure and deployment pipelines for modern applications
Experience & Projects
A journey through innovative projects and professional experiences, from embedded systems to full-stack development.
Technical Lead
Roadeo Inc.
San Juan, PR
Leading development and maintenance of mobile and web applications with focus on performance optimization and infrastructure cost reduction.
Key Achievements
- Optimized backend API requests by 90% and reduced cloud infrastructure costs by hundreds of dollars
- Designed and implemented CI/CD pipelines across Android, iOS, and web platforms via GitHub Actions
- Achieved 96% reduction in app startup time (from 4.69s to 118ms)
- Contributed to 50% user base growth in 60 days through quality improvements
- Developed multiple APIs for payment services and custom locally hosted server solutions
- Established 4-tier testing framework and distinct development environments
Technologies Used
Embedded/Full Stack Software Engineer
Loxodon-1 Bi-Propellant Liquid Engine Rocket Project
Mayagüez, PR
Designed, developed, and deployed Docker-mounted Rocket Engine Control/Monitoring Hub for the first Bi-Propellant Liquid Engine Rocket in Puerto Rico.
Key Achievements
- Developed wireless capability for dozen+ microcontroller-fed sensors and valves
- Created complete data pipeline: sensors → InfluxDB backend → MQTT broker → TypeScript/CSS website
- Achieved sub-second remote data telemetry display on front-end
- Designed and implemented system data representation within front-end website
- Individually coded wireless service integration for complex embedded systems
Technologies Used
Automated YouTube/Spotify Playlist
Personal Project
Remote
Developed series of Python scripts to parse contents of iPod Classic and automatically create online music playlists.
Key Achievements
- Applied knowledge of APIs via Google & Spotify tools to solve personal dilemma
- Created solution for Apple product that lacked online alternatives
- Delivered consumable solution within a single day
- Documented unrecognized songs within Spotify database for comprehensive coverage
- Used knowledge from Google Data Analytics course for data processing
Technologies Used
Automated Dice via Microcontroller
Personal Project
Remote
Created tool to automate physical dice of multiple sides with intuitive custom menu GUI and vector animated "rolling".
Key Achievements
- Automated dice for 2, 4, 6, 8, 10, 12, 20, & 100 sides
- Developed intuitive custom menu GUI with vector animations
- Strengthened proficiency with microcontrollers through passionate project
- Demonstrated ability to initiate and produce results without external incentives
- Showcased product development and presentation skills
Technologies Used
Projects
Automated Online Playlist from iPod Classic
Set of Python Scripts to parse & extract embedded meta data from iPod Classic, and create both Spotify & Youtube playlists from respective API's. Any data unavailable in Spotify service becomes saved in both JSON & TXT file with all available information for personal use.
Problem
- • Lack of Online Solutions/Support
- • Outdated 20 Year Hardware
- • Corrupted Transfer Capability
- • Apple Embedded System
Solution
- • Compartmented Python Scripts Per Stage
- • JSON & TXT Caching
- • Use of 2 Online Services to Ensure Success (Youtube & Spotify)
Key Achievements
- • 100% of iPod Songs Documented
- • >90% Songs Uploaded onto Online Playlist
- • 15,000% Faster than Physically Uploading (>24hr to 10min)
- • 100% Reduction in Cost (Free Solution as Opposed to Repair)
- • Open Source Solution Documented and Shared Online via GitHub
Scripting Process
Real-time Dockerized Rocket Control Hub
A docker mounted 3-stage mobile control system for the Loxodon-1 bipropellant liquid engine rocket
Frontend Features
- • Real-time Data Visualization
- • Interactive Dashboards
- • Custom Chart Components
- • Remote Fuel Valve Control
Backend Pipeline
- • MQTT Broker Handler
- • InfluxDB Managed Data
- • Python Data Processing
- • ASM Accelerated Microcontroller Output
Performance Metrics
- • 14+ Simultaneous Sensors (Unknown Ceiling)
- • Sub-second Query Response
- • 99.8577% Program Size Reduction (525MB to 765KB)
Full Stack Architecture
Education & Certifications
Academic foundation and continuous learning through formal education and professional certifications.
🎓 Education
Bachelor of Science in Software Engineering
University of Puerto Rico, Mayagüez
Comprehensive software engineering program with focus on full-stack development, embedded systems, and modern software practices.
Achievements
- Technical Lead at Roadeo Inc. while pursuing degree
- Active Embedded/Full Stack Software Engineer at Loxodon-1 Rocket Project
- Developed industry-standard CI/CD pipelines and testing frameworks
- Applied DevOps and OWASP security principles in real-world projects
Relevant Degree-Aligned Experience
🏆 Certifications
Google Cloud Digital Leader
Google Cloud
📅 In Progress
Skills Validated
Google Data Analytics Professional Certificate
Google Career Certificates
📅 In Progress
Skills Validated
Additional certifications and continuous learning initiatives in progress
Let's Build Something Amazing
Looking for a full-stack/embedded software developer who can craft end-to-end solutions? Let's discuss your next project.
Send a Message
Location
Mayagüez, Puerto Rico