Available for opportunities

Jestoni Brion

Full Stack Developer & Shift Leader

Building scalable, maintainable systems that improve operational efficiency. Translating complex business requirements into practical, high-impact technical solutions.

Talisay City, Cebu+63 9996710543jes2ni16@gmail.com

About Me

Turning Ideas Into Impact

Full Stack Developer and Shift Leader with ~3 years of experience designing and building internal business applications, as well as developing real-world web applications and SaaS projects.

Continuously learning and adapting to new technologies, with a passion for building efficient systems and solving complex problems through clean, thoughtful code. Recognized for strong problem-solving skills, attention to detail, and the ability to lead initiatives from concept to deployment.

Clean Code Advocate

Passion for building efficient systems and solving complex problems through clean, thoughtful code.

Ownership Mindset

Demonstrated ability to lead initiatives from concept to deployment with a strong sense of accountability.

Operational Impact

Proven track record of delivering scalable systems that improve operational efficiency across teams.

Technical Skills

My Tech Stack

Frontend

HTML95%
CSS92%
JavaScript90%
TypeScript85%
React88%
Next.js87%

Backend

Node.js85%
Express82%
Next.js API86%
PHP70%
Prisma80%

Databases

MySQL82%
PostgreSQL80%
MongoDB78%
Firebase85%

Tools & Platforms

Git88%
GitHub88%
GCP72%
CI/CD80%
Jest75%

Experience

Where I've Worked

2026 - Present

Full Stack Developer

Freelance · Remote

  • Building and shipping production web platforms for Netherlands-based clients in the rental and real-estate space, on Next.js, React, TypeScript and Supabase
  • Delivered ApartmentHub, a bilingual (NL/EN) rental platform, and Woning In Spanje Kopen, a 3-locale Spanish real-estate platform with a separate internal CRM
  • Designed passwordless WhatsApp OTP authentication and Google OAuth with team-membership gating, with service-role data access isolated to the server boundary
2023 - Present

Full Stack Developer

Cenix BPO Web Development Services · Cebu, Philippines

Promoted to Shift Lead (2025) | Employee of the Year (2024)
  • Implemented automated CI/CD pipeline with GitHub Actions, enabling seamless testing and deployment while reducing manual intervention
  • Designed and developed internal web application for office inventory management, streamlining tracking and improving operational efficiency
  • Designed and implemented development request workflow and ticketing process, improving task tracking, accountability, and delivery speed

Projects

What I've Built

ApartmentHub

ApartmentHub

Bilingual Rental Platform

Bilingual (NL/EN) rental platform with a tenant application journey, document dossiers and an internal CRM for agents and landlords.

Next.js 15React 19TypeScriptSupabasePostgreSQLDeno Edge Functionsn8npdf-libResendCal.com API
95 pages, 106 API routes and 11 Deno edge functions against a 55-table Postgres schema with row-level security
Passwordless WhatsApp OTP authentication (n8n + Zoko + JWT edge functions), removing passwords from the tenant journey entirely
Multi-party document dossier system: per-person requirement rules by employment status, Supabase Storage uploads, and AI passport/ID extraction to auto-fill applicant details
Woning In Spanje Kopen

Woning In Spanje Kopen

Spanish Real Estate Platform

Full-stack Spanish real-estate platform for Dutch buyers — a 3-locale public site and a separate CRM in one codebase, with an AI-generated investor proposal engine.

Next.js 16TypeScriptSupabaseTailwind v4PlaywrightSharpGA4Google OAuth
3-locale public site plus a separate CRM in one codebase: ~48k LOC, 63 API routes, 34 Postgres migrations
AI-generated PDF proposal engine rendering a 26-slide investor brochure per listing, with a deterministic TypeScript financial model (mortgage annuity, rental yield, 10-year growth, exit projections) and the LLM restricted to prose — never figures
Three-pass validation gate (invariant recomputation, plausibility banding, LLM review) that blocks delivery on contradictory figures instead of emailing incorrect numbers to clients
Nexevus

Nexevus

Digital Profile SaaS Platform

SaaS platform for real estate agents to create digital profiles, manage listings, and showcase pre-selling projects.

Next.js 15PostgreSQLPrisma 7TypeScriptTailwindNextAuth v4ResendUpstash Redis
Multi-tier subscription with PayMongo payments (card, GCash, GrabPay, PayMaya, QR PH) and webhook-verified recurring billing
Dual UI system combining shadcn/ui + Tailwind for settings/sidebar and raw Tailwind for public-facing pages
Zod schema validation across all API inputs with .safeParse() error handling and custom enum validators
Eutopia Cebu

Eutopia Cebu

Real Estate Platform

A comprehensive real estate listing platform for Cebu properties using modern web technologies.

Next.js 16React 19TypeScriptTailwind CSSNextAuth.jsMongoDBGoogle Cloud StorageReact LeafletTipTap
Responsive admin dashboard with full CRUD operations for property management
Secure authentication system using NextAuth.js with MongoDB adapter
Google Cloud Storage integration for efficient image uploads and management
Zaiko

Zaiko

Property Management API

RESTful API for managing clients, property listings, and projects with advanced filtering and search capabilities.

Node.jsExpressMongoDBJWTMulterCloudinarySharp
RESTful API for managing clients, property listings, and projects with advanced filtering and search
JWT-based authentication with role-based access control via admin middleware
File uploads using Multer integrated with Cloudinary for scalable image storage
Southeast Care Insurance

Southeast Care Insurance

Insurance Services Website

Frontend website for Southeastcare Insurance Services, a trusted insurance intermediary in the Philippines delivering premium solutions for individuals and businesses.

HTMLCSSJavaScriptResponsive Design
Clean, professional landing page showcasing insurance products and services for both business and personal needs
Fully responsive design optimized for all device sizes with smooth navigation and section-based layout
Organized content sections for products (Employee Benefits, Motor Car, Property, Cyber, Engineering, Marine, Travel, Casualty, Bonds) and services

Credentials

Certifications & Awards

Certifications

Full Stack Web Development Bootcamp

Kodego

2023

JavaScript Algorithms and Data Structures V7

FreeCodeCamp

2023

Programming with JavaScript

Meta

2026

Awards

Employee of the Year

Cenix BPO Web Development Services

2024

Promoted to Shift Lead

Cenix BPO Web Development Services

2025

Contact

Let's Connect

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your team.