Johnathan V.
Orlando, United States
64%
Job Success
AI-Powered Systems Developer | Full-Stack Engineer | U.S.-Based
$120.00/hr
I build AI-driven systems that deliver real-world results—fast.
I’m Johnathan Viruet, a U.S.-based full-stack engineer who specializes in turning high-level ideas into fully operational platforms. From backend APIs to dynamic frontends to AI agents that talk, think, and automate—I do it all, hands-on, end-to-end.
My work powers:
✅ Voice AI systems for service-based businesses
✅ Booking and triage flows for appliance repair companies
✅ Lead-gen and sales automation tools with live LLM integration
✅ Symbolic reasoning engines that simulate memory, conflict resolution, and foresight
✅ Modular SaaS MVPs delivered in days, not weeks
What sets me apart:
AI + Automation Native: I integrate GPT-4, Claude, custom agents, and vector databases like Pinecone or FAISS into real workflows—not demos.
Rapid Execution: I’ve built MVPs in 3–5 days with CI/CD, RBAC, payment processing, and multi-language IVRs.
Full Ownership: Backend (FastAPI, MongoDB, Docker, AWS), Frontend (React/Next.js), APIs, testing, deployment—no handoffs, no delays.
Systems Mindset: I design for the big picture—adaptability, modularity, and ROI from day one.
If you need someone who can think like a founder, build like a CTO, and deliver like an engineer—I’m your guy.
Let’s make your vision work.
Work history
Work history
AI Prompt Developer for Sports Betting Application
Apr 24, 2025
-
May 3, 2025
Freelancer's response
"“I’m sorry the collaboration ended early. — Scope & Timelines: All milestones were on schedule, and the refactor was two edits from completion when the contract closed. — Deliverables to…
Private earnings
Urgent Twilio Account Fix for Text Alerts
Mar 14, 2025
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Mar 31, 2025
"Could not be more pleased with Johnathan. He did exactly what he said he could do, and in a timely manner. Trustworthy, competent, easy to work with. 5 stars for…
Private earnings
Twilio AI Voice Agent Optimization Expert Needed
Feb 13, 2025
-
Feb 14, 2025
"Good Job! Really Amazing skill!"
Private earnings
Full Stack Django Developer Needed For Simple Asset Dashboard
5.0
of 2 reviews
May 22, 2024
-
Aug 19, 2024
5.0
Freelancer's response
"Thanks John"
Private earnings
Overlay or Iframe Web Script Needed
May 7, 2024
-
May 19, 2024
"Johnathan delivered exceptional work on my web script project. His attention to detail and creativity were evident throughout the entire process. He communicated effectively, ensuring that all my requirements were…
Private earnings
Looking for a Technical Cofounder - Developer
May 8, 2024
-
May 8, 2024
"Was an amazing developer that is knowledgeable and both friendly in communication style and process. One of the most methodical and observant folks I have worked with. 10/10"
Private earnings
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Skills
Skills
- Python
- JavaScript
- TypeScript
- API Integration
- React
- PostgreSQL
- MongoDB
- Chatbot
- AI Agent Development
- ChatGPT API Integration
- Back-End Development
- LLM Prompt
- AWS Application