GUEDAL THOMAS
GitHub.com/Guedalthomas
AI Prompt Engineer | Web Automation Developer | Technical Systems Innovator
SUMMARY
Resourceful and forward-thinking AI Prompt Engineer and Web Automation Developer with a
passion for building smart systems, refining LLM performance, and streamlining workflows using
code and creative logic. Proven experience creating advanced prompt structures across
multiple AI platforms (ChatGPT, Claude, Gemini), developing custom JavaScript tools, and
delivering clean, responsive front-end solutions. Adept at bridging technical functionality with
user experience to drive efficiency and innovation. Seeking opportunities to contribute to
cutting-edge teams focused on AI, automation, or digital tooling.
EXPERIENCE
Freelance (Remote) — AI Prompt Engineer & Tooling Specialist
2023 – Present
● Designed high-performance prompt frameworks for natural language models, optimizing
accuracy, tone, and response speed.
● Conducted cross-model evaluation and hallucination detection for AI safety/UX testing.
● Created lightweight internal web apps using JavaScript to streamline LLM testing,
feedback loops, and A/B evaluations.
● Consulted with AI tool startups on prompt refinement strategies, logic branching, and
error-reduction techniques.
Freelance (Remote) — Technical Support & Web Automation Developer
2022 – Present
● Delivered automated solutions for solopreneurs and remote teams using HTML, CSS,
JS, and GitHub tools.
● Created internal scripts to automate repetitive processes, reports, and QA tasks.
● Integrated no-code/low-code platforms (e.g., Airtable, Zapier) with custom JS for
seamless digital workflows.
● Provided client-ready documentation and troubleshooting support for technical rollouts.
Best Buy – Tech Support Representative (Geek Squad)
Moreno Valley, CA | 2021 – 2022
● Resolved hardware/software issues for mobile, PC, smart home, and entertainment
systems.
● Supported high-volume client environments while maintaining top CSAT scores.
● Developed foundational IT troubleshooting skills and learned diagnostic logic.
EDUCATION & CERTIFICATIONS
Self-Guided Study — AI Engineering & Web Development
2022 – Present
● Advanced Prompt Engineering | LLM Integration Workflows | DOM Scripting
● AI Safety, Bias Mitigation, and Structured Prompt Evaluation
● JavaScript-Based Tooling & Front-End Logic
FreeCodeCamp / Coursera / Microsoft Learn
● Front-End Web Development Certification
● LLM Prompt Engineering Specialization
● Excel for Data Analysis & Automation
PROJECTS
Calculator App – Interactive, responsive calculator built with JavaScript and hosted via GitHub
Pages.
AI-Powered To-Do List – A productivity tool with built-in AI prompts for task tagging and
prioritization logic.
LLM Evaluation Toolkit – A suite for analyzing AI outputs for hallucinations, bias, tone shifts, and
prompt performance.
Excel + JS Automation Script – Combined Excel logic and JavaScript to streamline task
reporting and data validation.
SKILLS
Languages & Frameworks: JavaScript (Proficient), HTML/CSS (Advanced), Python (Basic), Git,
GitHub
AI/LLM Tools: ChatGPT, Claude, Gemini, Prompt Engineering, Evaluation, Bias Handling
Web Development: DOM Manipulation, Responsive UI, GitHub Pages, Debugging, Accessibility
Automation & Systems: Excel (Formulas, Pivot Tables), Git Workflows, No-Code Tools (Zapier,
Make)
Core Concepts: LLM Output Tuning, Async Programming, Prompt Logic Trees, Web-Based AI
Integration