KerroldJ Portfolio

Hello, I'm

Errold Jay Batay-an

FreelancerFull Stack Developer

I build secure, scalable, and high-performance applications using modern technologies. Passionate about system development, clean architecture, and user-focused solutions.

3+

Years Experience

20+

Projects Built

10+

Technologies

Python (Django)PHP (Laravel)JavaScript (Next.js, React.js, Vue.js)HTML5CSS3Tailwind CSSBootstrapMySQLPostgreSQLFirebaseSQL ServerMongoDBFlutterDartFlutterFlowReact NativeGitGitHubVisual Studio CodePostmanRESTful APIsGit Version ControlDocker ContainersCI/CD PipelinesAWS S3Python (Django)PHP (Laravel)JavaScript (Next.js, React.js, Vue.js)HTML5CSS3Tailwind CSSBootstrapMySQLPostgreSQLFirebaseSQL ServerMongoDBFlutterDartFlutterFlowReact NativeGitGitHubVisual Studio CodePostmanRESTful APIsGit Version ControlDocker ContainersCI/CD PipelinesAWS S3
Errold Jay Batay-an

About Me

I am a Full Stack Web Developer with over 3 years of hands-on experience in building secure, scalable, and high-performance web applications. I specialize in frontend and backend development, system design, and application security using technologies such as Laravel, Vue.js, Next.js, and React.

My work focuses on developing reliable and efficient systems, optimizing performance, and delivering user-centered digital solutions. I am passionate about innovation, solving real-world problems, and continuously improving my technical expertise through modern development practices.

I aim to build impactful software solutions that are secure, scalable, and maintainable while contributing to organizations through strong technical execution and continuous learning.

Full Stack Development

3+ years of experience designing, developing, and maintaining secure and scalable web applications using Laravel, Vue.js, and modern JavaScript frameworks.

System Architecture & Security

Strong focus on system design, application security, authentication systems, and performance optimization for enterprise-grade solutions.

Cloud & Deployment

Experience working with RESTful APIs, database-driven applications, and AWS services for deployment, hosting, and system reliability.

Technical Skills

Technologies and tools I use to build scalable and modern applications.

Programming Languages & Frameworks

  • Python (Django)
  • PHP (Laravel)
  • JavaScript (Next.js, React.js, Vue.js)

Frontend Technologies

  • HTML5
  • CSS3
  • Tailwind CSS
  • Bootstrap

Database Management

  • MySQL
  • PostgreSQL
  • Firebase
  • SQL Server
  • MongoDB

Mobile Application Development

  • Flutter
  • Dart
  • FlutterFlow
  • React Native

Tools & Platforms

  • Git
  • GitHub
  • Visual Studio Code
  • Postman
  • RESTful APIs

DevOps, Cloud & Others

  • Git Version Control
  • Docker Containers
  • CI/CD Pipelines
  • AWS S3

Projects

This section highlights my best projects so far, demonstrating my experience in designing, developing, and deploying efficient and reliable systems using modern web technologies.

HRIS (Human Resource Information System)

HRIS (Human Resource Information System)

A Human Resource Information System for managing employee records, job postings, and organizational workflows with role-based access and secure data handling.

LaravelInertiaJSVueJSSQLServerTailwind
Piccatune

Piccatune

A mobile application focused on music and arts, similar to TikTok and Spotify, where users can create, share, and explore audio-based content. The platform is built using Flutter and powered by AWS and Firebase services for real-time data, storage, and scalability.

FlutterAWSFirebase

Contact Me

Need a system or application for your business or project? Get in touch and let's build a reliable and scalable solution together.