Senior Full-Stack Engineer
AI-native engineer
Available for hire
Years of
experience
4+ years
Experience
level
Senior
Available
for
Full-time, Part-time, Contract, Freelance
I'm a senior Full-Stack Engineer with 4 years of experience designing and delivering scalable software across healthcare, nonprofit technology, SaaS, and AI-powered applications. Experienced in architecting end-to-end systems using React, Next.js, TypeScript, Node.js, NestJS, REST APIs, SQL, and modern cloud and on-premise infrastructure. Built systems supporting 1,000+ daily healthcare transactions, AI-powered platforms, multi-tenant SaaS applications, and workflow automation that reduced manual work significantly. I have strong background in system architecture, database design, testing, CI/CD, LLM integration, prompt engineering, and AI-assisted development using Claude Code and Cursor.
Skills
JavaScript
TypeScript
React.js
Next.js
NestJS
TensorFlow
Node.js
Express.js
Fastify
Tailwind CSS
SQL
Redis
Web sockets
Docker
AWS
Azure
Vercel
Opencv
Framer Motion
WebGL
Redux.js
GCP
Zod
Software as a Service
NoSQL
REST
Kubernetes
Terraform
Supabase
OpenAI
Bun
React Query
Socket.io
Zustand
NextAuth
Responsive design
PostgreSQL
SQS
SNS
Cloudflare
Git
GitHub
Figma
CI/CD
Test Driven Development
Web services
Web security
Stripe
Payment gateways
Serverless
Server Side Rendering
Server Side Generation
Infrastructure as a Service
Deep learning
Webflow
Python
Hostinger
IBM Cloud
NumPy
Pandas
OpenGL
Tauri
Languages
Employment History
Senior Full-Stack Engineer at
Nexus Technologies
Current
2025
-
Now
- Architected and developed Content AI, an AI-powered social media management platform for content creation, research, scheduling, analytics, and LLM-powered automation, reducing manual content planning and scheduling by up to 10 hours per week.
- Architected and developed Dentos, a multi-tenant dental clinic platform with appointment booking, queue management, patient records, inventory, billing, patient applications, and website management using Next.js, React, TypeScript, and NestJS.
- Built Nexus CRM, an AI-powered CRM with prospect research, AI agents, automated follow-ups, and a client project portal, estimated to save up to 40 hours per week of manual prospecting and follow-up work.
- Developed Nexus WebKit, a Chrome extension for validating website delivery requirements including SEO, GEO, AEO, accessibility, and responsive design, reducing manual QA and delivery checks by an estimated 20 hours per project.
- Own the full software development lifecycle across product architecture, database design, frontend and backend development, AI/LLM integration, deployment, testing, and ongoing maintenance.
Senior Full-Stack Engineer at
Dr. Serapio B. Montañer Jr. Al-Haj Medical Hospital
2025
-
2026
- Architected and led the development of an on-premise Electronic Medical Record (EMR) system covering patient records, kiosk operations, inventory, billing, and other hospital workflows, supporting 40+ staff and 1,000+ daily patient transactions.
- Designed the application architecture and database schema for real-time hospital operations, reducing manual record-keeping by 80%.
- Configured and deployed on-premise servers for both local-network and internet-based access, maintaining 99% system uptime with zero reported data-loss incidents.
- Introduced and implemented Test-Driven Development (TDD) practices, increasing code coverage from 45% to 85% and reducing production defects by 60%.
- Used Claude Code and AI-assisted engineering workflows to accelerate development of complex data extraction and processing features, improving estimated developer productivity by 30%.
- Mentored three junior engineers through code reviews and pair programming while establishing development practices focused on code quality, testing, and maintainability.
Full-Stack Engineer at
Fund-Nation LLC
2023
-
2025
- Built Fundit, an AI-powered grant discovery platform using React, TypeScript, Next.js, Node.js, OpenAI embeddings, vector search, and recommendation algorithms, surfacing 800+ funding opportunities for 20 nonprofit organizations.
- Implemented an LLM-powered grant matching system using embeddings and vector similarity search, significantly improving the relevance of grant recommendations compared with keyword-based search.
- Developed nonprofit websites and conversion funnels with SEO best practices and GA4 analytics, contributing to a 10% increase in conversion rates.
- Improved and automated CRM workflows for client outreach, lead nurturing, and service delivery, reducing repetitive manual processes.
Web Designer & Automation Specialist at
6 Figure Grant LLC
2022
-
2023
- Developed the Grantability Test, a web application that evaluates a nonprofit organization's grant readiness using React, TypeScript, and Express.js, contributing to a 40% increase in organic lead generation.
- Designed and developed websites for nonprofit organizations with SEO best practices and GA4 analytics, contributing to a 20% increase in organic traffic.
- Built custom automation workflows using tools such as GoHighLevel, Zapier, n8n, and Integrately, saving clients an estimated 20 hours per week in manual work.
Education
Bachelor of Science in Information Technology at
Tarlac Agricultural University
2018
-
2022
IT in Mobile Application and Web Development (NC IV) at
STI Academic Center - Cubao
2016
-
2018