Senior Software EngineerBackend & Python Expert
Senior Software Engineer | Backend & Python Expert with 6+ years of specialization in designing and building scalable, high-performance backend systems. Skilled AI/ML Engineer with a strong track record in developing robust AI agents and intelligent solutions. Proficient in creating efficient, scalable architectures that drive innovation and support complex AI workflows. Adept at leveraging cutting-edge technologies to deliver impactful, reliable backend services for demanding applications.
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🛠️ Skills & technologies
Languages, frameworks, and tools I use to build scalable systems and AI solutions
Programming Languages
AI & Machine Learning
Frontend
Backend & APIs
Databases
Cloud
DevOps & Infrastructure
Version Control
Testing & Developer Tools
Featured projects
Showcasing my expertise in AI, backend development, and full-stack solutions
PXI Studio — Mobile App
Expo / React Native client for PXI Studio
Native iOS and Android client for PXI Studio built with Expo and React Native. It is the primary surface for photographers and clients on the go: capture, albums, notifications, and account flows wired to the platform API. The app emphasizes responsive UI, media-heavy workflows, and secure session handling. It complements the web experience by focusing on device capabilities such as camera, background tasks, and push-ready architecture.
PXI Studio — Web App
Next.js marketing site and product dashboard for PXI Studio
Marketing and authenticated web surface for PXI Studio built with Next.js and React. It introduces the product to new users and hosts the browser-based dashboard for managing studios, billing touchpoints, and analytics-style views. The UI layers Ant Design, motion (Framer Motion / GSAP), and Tailwind for a cohesive brand experience. This project is intentionally separate from the mobile shell: it optimizes for large screens, SEO-friendly pages, and web-first integrations.
PXI Studio — API & Platform Services
Node.js / Express API tier for PXI Studio
Central HTTP and real-time service for PXI Studio implemented with Node.js, Express, and TypeScript. It owns authentication bridges, business rules, persistence, file delivery, and integrations (payments, email/SMS, cloud storage). PostgreSQL and Prisma model core data, while Socket.IO powers live channels used by web and mobile clients. This layer is the contract both frontends share: it is not a UI project and deliberately stays focused on reliability, security, and integration boundaries.
Dr.Oracle — Mobile App
iOS & Android medical AI with guideline-backed, fully cited answers
Native mobile experience for Dr.Oracle—the physician-owned medical AI adopted by hospital systems, residency programs, and universities. Available on iPhone, iPad, and Android, the app delivers evidence-based clinical support with in-text citations from official guidelines, PubMed literature, FDA drug labels, and case reports. Clinicians use it for differential diagnosis, guideline-directed management, and Research Mode literature synthesis across all subspecialties. Continuously reviewed by a multidisciplinary physician advisory board and fine-tuned weekly for accuracy.
Dr.Oracle — API & Backend
Medical RAG platform powering clinical Q&A, Research Mode, and citations
Backend and API tier for Dr.Oracle—the physician-owned medical AI powering the iOS and Android mobile apps. Ingests and indexes evidence from PubMed, international clinical guidelines, FDA drug labels, and case reports into a retrieval-augmented pipeline so every answer is grounded in citable sources. Orchestrates general medicine chat, Research Mode literature synthesis, differential diagnosis workflows, and guideline-directed management with streaming responses, in-text citations, and a physician advisory review queue. Handles mobile subscription billing (Apple IAP, Google Play), session auth, conversation history, and weekly model fine-tuning for accuracy.
AskYourPDF — Web App
PDF AI chat, document intelligence, and developer API platform
Web platform for AskYourPDF—used by millions to chat with PDFs, summarize documents, manage libraries, autofill forms, and embed AI agents on websites. Built around RAG over uploaded files with multi-model support (GPT, Claude, Gemini), agent mode, source citation, and streaming responses. Includes a developer REST API, knowledge-base chat, Chrome extension, Zotero plugin, and ChatGPT plugin for document workflows in the browser.
AskYourPDF — Mobile App
iOS & iPad PDF AI chat powered by Claude, ChatGPT & GPT-4
Discover AskYourPDF powered by Claude, ChatGPT and GPT-4 APIs—not just a name, but a promise. Dive into a world where documents, be they PDFs, Word files, or other formats, come alive with conversation. Upload and engage in intelligent dialogues with our state-of-the-art AI chat. Extract not just data, but meaningful insights, answers, and knowledge from your files. Whether you're deciphering complex reports or simply curious about a paragraph's essence, AskYourPDF stands as your digital companion, ready to enlighten. It's not just document reading; it's a transformative experience of document interaction.
AskYourPDF — API & Backend
Python / FastAPI RAG platform and developer API for document intelligence
Backend and public API tier for AskYourPDF—the service that powers web, mobile, and third-party integrations. Handles document ingestion, chunking, vector embedding, and retrieval-augmented generation so chat answers stay grounded in uploaded PDFs and knowledge bases. Exposes REST endpoints for upload, single-document chat, multi-document knowledge-base chat, summarization, and streaming responses with API-key authentication. Orchestrates multiple LLM providers (OpenAI, Claude, Gemini), agent mode for higher-quality answers, source citation, and usage-based access for developer and product clients.
AskYourPDF — Chrome Extension
ChatPDF extension for in-browser PDF AI chat and summaries
Chrome extension for AskYourPDF—the ChatPDF extension that lets you chat with PDFs, get summaries, ask questions, and receive answers without leaving the browser. Upload PDFs and engage with intelligent AI to extract insights from documents for faster research and decision-making. With advanced AI, the extension understands queries and returns accurate, concise answers so you are not just reading a document—you are having a conversation with it. Published on the Chrome Web Store with 20,000+ users and a 4.5-star rating.
Showing 1–9 of 35 projects
Work experience
A journey through diverse roles building scalable systems and AI solutions
Education
Foundation in computer science and hands-on project experience
Bachelor's Degree in Computer Science
University of Rizal System (URS)
Key highlights
- Completed coursework in software development, data structures, algorithms, databases, and programming languages
- Participated in projects involving web development, mobile apps, and software design
- Gained practical experience in coding, debugging, and collaborative development environments
Software Development Projects
Developed multiple web applications and mobile apps as part of coursework, implementing full-stack solutions with modern technologies
Data Structures & Algorithms
Completed advanced coursework in data structures, algorithms, and computational complexity, applying these concepts in practical projects
Database Systems
Designed and implemented relational database systems, learning SQL optimization and database management principles
Hobbies & interests
What I do in my free time to stay balanced and inspired
Video Gaming
Exploring virtual worlds and strategic gameplay helps me unwind while sharpening problem-solving skills and quick decision-making
Mountain Climbing
Conquering peaks and embracing nature's challenges builds resilience, endurance, and a deep appreciation for adventure
Billiards
Precision, strategy, and focus come together in this classic game that combines skill with friendly competition
Let's build something great together
Ready to discuss your next AI or backend project? Let's connect and create something amazing.
Get in touch
I'm always interested in hearing about new opportunities and exciting projects. Whether you have a question, want to collaborate, or just want to say hi, feel free to reach out!