ABOUT

Emerjoe Rosas

I’m a product-minded full-stack software engineer based in Nueva Ecija, Philippines, with 3+ years building and operating production SaaS, infrastructure, and developer tools. I own work from product decisions and implementation through deployment and ongoing operations. I’m available for remote roles, including contract and employer-of-record arrangements.

Employment

Independent Software Developer

Jan 2023 – Present · Part-time
Freelance
Remote

I designed, built, deployed, and continue to operate Chaps LMS, a production learning platform serving 4,500+ active student accounts.

I built courses, assessments, PRC-aligned mock exams, real-time messaging, role-based access, and branch-level data isolation with Laravel, Filament, Redis/Reverb, MySQL, and Docker.

I own ongoing feature delivery, deployments, production debugging, and maintenance.

Technical Co-Founder

Apr 2025 – Present · Part-time
KeyFleet
Remote

I co-founded KeyFleet, a B2B car-rental management SaaS that grew from zero to 100+ onboarded businesses. I contribute product features and technical direction.

I built and extended fleet availability, booking, customer, contract, invoicing, inspection, and reporting workflows using Laravel, Filament, MySQL, and Docker.

I own servers, CI/CD, deployments, security, and monitoring, and resolve production operational issues.

Software Engineer

Dec 2023 – Oct 2025 · Full-time
Sucre Technology Inc
Pasig, Metro Manila, Philippines

I led delivery of three client projects, making technical decisions and turning business requirements into production PHP and JavaScript applications.

I diagnosed production issues and optimized database queries. I refactored, tested, and debugged code with clients and internal teams to improve performance and maintainability.

Core stack

Product engineering

TypeScript, React, Next.js, Tailwind CSS · PHP, Laravel, Livewire, Filament · Python, FastAPI

Data & infrastructure

PostgreSQL, MySQL, Redis · Docker, Linux, Nginx, AWS · GitHub Actions

Tooling & practices

Git, REST APIs, PHPUnit, Pest, Jest, Sentry

Education

Bachelor of Science in Information Technology

Nueva Ecija University of Science and Technology

Jul 2023