Van AJ Vanguardia

Full-stack software developer.

vanajvanguardia@gmail.com
Cebu, Philippines
GitHub · LinkedIn

Profile

For more than three years, I have built web and mobile applications with TypeScript, React, Next.js, and ASP.NET Core. My work covers requirements, interface development, APIs, databases, testing, and deployment. I am based in Cebu, Philippines. I use coding agents for research, implementation, and review, then verify the result with tests, browser checks, and direct code review.

GitHub engineering activity · last 12 months

1,456Contributions

983Private contributions included

94Owned repositories

Full GitHub activity →

Experience

Full-Stack Developer

Full Scale Teams PH

Build and maintain production applications across React interfaces, ASP.NET Core services, MSSQL databases, third-party integrations, accessibility, and deployment.

  • Develop features across React and ASP.NET Core. The work spans user interfaces, API services, MSSQL data flows, and external integrations.
  • Delivered a custom Salesforce application. Translated operational requirements into software that simplified business workflows and improved the consistency of stored data.
  • Improved database and integration performance. Optimized database queries and integration paths to reduce latency and make application flows more reliable.

Full-Stack Developer

NextDevs Software Development Services

Worked on crew management systems across backend architecture, typed APIs, databases, Next.js interfaces, and Docker-based local environments.

  • Structured the backend and database. Defined service and data boundaries for Crew Management and Crew Portal systems.
  • Built typed APIs with NestJS and Fastify. Used NestJS with Fastify and Prisma to connect product workflows to type-safe data access.
  • Worked across implementation and QA. Collaborated with frontend and QA contributors through Swagger and Postman, then resolved Next.js interface and performance issues.

Developer Intern

Full Scale

Completed a full-stack internship program and built assessment projects with Next.js, ASP.NET Core, MSSQL, and Docker.

  • Built an event registration workflow. Collaborated on an event registration system using ASP.NET Core Web API, Next.js, MSSQL, and Docker.
  • Implemented attendee tracking. Added QR-based attendance flows and real-time event statistics for organizers.
  • Built an independent assessment project. Independently developed a contact-management system across interface, API, database, and containerized environment.

Full-Stack Developer, NextGig

University of San Carlos

Co-developed a mobile marketplace that connected student freelancers with clients through a React Native app, web administration, backend data, and authentication.

  • Built the mobile and web interfaces. Implemented the mobile application with Expo, React Native, and TypeScript, plus the admin interface and landing page with Next.js.
  • Connected shared data and authentication. Integrated Convex as the shared backend and Clerk for secure passwordless authentication.
  • Prepared the capstone release. Deployed the product across mobile distribution channels and Vercel as part of the capstone delivery.

Developer Intern

MYT SoftDev Solutions Inc.

Contributed to backend, documentation, QA, and frontend maintenance across internal business systems.

  • Documented and implemented APIs. Created API documentation and implemented CodeIgniter backend endpoints for an Alumni Portal.
  • Tested API and production behavior. Used Postman for manual API testing and worked with senior developers to resolve visible production issues.
  • Maintained an existing ERP interface. Refined jQuery and JavaScript frontend code for an enterprise resource-planning system.

IT Intern

Astro Shipping Management Inc.

Used Python automation to prepare legacy operational data for a new planned-maintenance system.

  • Automated legacy data preparation. Developed a Python workflow with Pandas and NumPy to migrate and format legacy Excel records.
  • Standardized records for import. Prepared consistent source records for database import and reduced manual handling during system implementation.

Selected products

Relay

Relay gives recreational pickleball groups one place to plan a session, invite players, split court costs, manage rotations, score matches, and save a recap.

Next.js · TypeScript · Supabase · PostgreSQL · Drizzle ORM · Zod · Vitest · Playwright

Roleway

Roleway gives each focused job search its own Workspace, connecting Jobs, Opportunities, next actions, interviews, contacts, documents, and outcomes while an optional Agent prepares work that users approve.

Next.js · TypeScript · Supabase · PostgreSQL · Turborepo · Zod · Vitest · Playwright

Viya

Viya is a mobile travel workspace for itineraries, budgets, documents, bookings, and trip readiness, with AI-assisted changes that travelers review before saving.

TypeScript · React Native · Expo · Convex · Clerk · Zod · Turborepo

ACSFI

ACSFI gives the Astro Charitable and Scholarship Foundation a public website for its mission, programs, activity reports, upcoming events, and contact information, backed by a CMS for ongoing updates.

Next.js · TypeScript · Strapi · MySQL · Cloudinary · Turborepo · Bun · Docker

Core stack

TypeScript, React, Next.js, React Native, Node.js, ASP.NET Core, PostgreSQL, MSSQL, Docker, Git, CI/CD

Education

BS Information Technology, University of San Carlos, Talamban Campus, 2024