Hi, I'm Cristian
Venjo Reyes.
Software Engineer & Full Stack Developer
Hard-working engineer with proficiency in modern software development, strong team communication skills, and a passion for learning cutting-edge technology and building impactful software.
Passionate about building software that matters.
I'm a Software Engineer with over 6 years of experience in full-stack software development, building and maintaining production applications across frontend, backend, database, and infrastructure.
Over the years I've worn many hats — from maintaining enterprise school management systems and mentoring junior programmers, to architecting interactive learning tools and backend APIs for EdTech platforms. I enjoy solving complex problems and turning real business requirements into reliable, maintainable software.
Hi, I'm Venjo.
A quick introduction to who I am and how I work.
6+
Years of Experience
10+
Technologies
Full Stack
Frontend to Backend
∞
Drive to Keep Learning
Tools & Technologies
Technologies and engineering practices I use to design, develop, deploy, and maintain full-stack applications.
Frontend
Building responsive and modern user interfaces.
Backend
Developing APIs, business logic, and server-side systems.
Databases
Designing and optimizing relational and NoSQL databases.
Architecture
Designing maintainable and scalable application structures.
DevOps & Tools
Supporting deployment, infrastructure, and development workflows.
CMS & AI Tools
Working with content platforms and AI-assisted development tools.
Demo Project
Explore a live sample application, watch the project walkthrough, and try the system using the provided demo credentials.
Dental Clinic Appointment System
A deployed web application sample from my portfolio. Watch the recorded walkthrough to see the system in action, or open the live application and use the demo dentist account below to explore its features.
From problem to working solution.
The Problem
Dental clinics need a more organized way to handle appointments, dentist schedules, and day-to-day clinic workflows without relying heavily on manual processes.
What I Built
Built a full-stack dental clinic appointment system that centralizes appointment scheduling and provides dedicated access for dentists to manage their clinic workflow.
The Result
A fully deployed and functional application demonstrating an end-to-end dental appointment workflow that visitors can explore and test directly.
Demo Dentist Login
Use these credentials to explore the live application.
dentist@gmail.com
Password
Admin123*
Projects I've Built
A selection of real-world applications I've designed, developed, and maintained across various industries and team roles.
Gamified e-learning platform for kindergarten students featuring interactive math, words, and basic concept modules with teacher scheduling tools.
Centralized web-based school management system covering enrollment, payment processing, student accounts, reports, and dashboard analytics for higher education operations.
Web-based HR & Payroll application that centralizes employee records, attendance tracking, payroll computation, and automated HR reporting workflows.
Official institutional website serving as the public-facing digital presence with content management capabilities.
Comprehensive school management system for basic education (elementary & high school) handling enrollment, student records, billing, and administrative workflows.
Legacy college management system for enrollment, student records, and billing operations with ongoing maintenance, bug fixes, and system improvements.
Library management system for tracking book inventory, student borrowing records, and return management.
Scholarship event management system that handles student queuing, room assignments, and interview scheduling for school scholarship programs.
Inventory management system for tracking LPG product stock levels, movement, and supply chain operations.
Professional Experience
My professional journey building, maintaining, and improving production software across enterprise, education, and remote development environments.
Senior Programmer / Full Stack Developer
First Asia Institute of Technology and Humanities
Tanauan, Batangas
- Led the end-to-end design and engineering of core internal enterprise systems handling enrollment, financial payments, data reporting, and student management across multiple departments.
- Built and maintained critical system features from the ground up, ensuring scalability, maintainability, and alignment with real-world institutional workflows.
- Managed and mentored a team of developers through structured code reviews, development standards, and technical guidance.
- Directed the full software development lifecycle from requirement analysis through development, testing, deployment, and ongoing improvement.
- Designed and developed scalable backend services and APIs to support reliable data flow and integration across application modules.
- Developed responsive and user-friendly interfaces focused on usability, performance, and efficient administrative workflows.
- Designed and optimized relational database structures, queries, and indexing strategies to improve system performance and reliability.
- Implemented secure authentication, authorization, and role-based access controls to protect sensitive information.
- Managed application deployment, server configuration, environment setup, and production-level troubleshooting.
- Diagnosed and resolved complex production issues through systematic debugging, log analysis, and collaboration with users.
- Identified application and database bottlenecks and implemented improvements to increase overall system performance.
- Worked directly with end-users during testing and validation, gathering feedback and refining features before production release.
- Managed collaborative development workflows, feature changes, bug fixes, and code integration within the development team.
Software Engineer (Freelance)
AgentSync — Mrs Learning Bee
Remote | Sydney, Australia
- Designed and built dynamic, interactive game-based learning widgets to improve engagement and the overall learning experience.
- Developed and maintained both frontend and backend components, ensuring smooth integration across the application.
- Built scalable backend services and APIs responsible for business logic, data processing, and system integrations.
- Designed and optimized relational database structures to maintain data consistency, efficient querying, and long-term scalability.
- Implemented customized platform features based on evolving client requirements and product needs.
- Improved system responsiveness by optimizing data processing and refining application logic.
- Worked directly with stakeholders in a remote environment, translating requirements into practical technical solutions.
- Managed tasks independently with minimal supervision while maintaining strong ownership and accountability for deliverables.
- Conducted thorough testing and debugging to ensure reliable functionality and a smooth user experience.
Junior Programmer
First Asia Institute of Technology and Humanities
Tanauan, Batangas
- Developed and delivered functional modules for internal school systems covering enrollment, student records, and administrative workflows.
- Assisted in building and maintaining backend services and APIs to support reliable data handling and application integration.
- Built and enhanced user interfaces with a focus on usability, clean layouts, and efficient administrative workflows.
- Wrote and optimized database queries supporting reporting, data retrieval, and functionality across multiple system modules.
- Identified and resolved software issues through debugging, testing, and code tracing, improving overall system stability.
- Worked closely with senior developers through code reviews, technical discussions, and collaborative development.
- Provided ongoing support for existing applications, implementing bug fixes and system enhancements based on user feedback.
- Participated in user testing and validation to ensure completed features met business requirements before deployment.
IT Support / Application Developer
Eco Savers Group of Companies
Santo Tomas, Batangas
- Monitored and maintained internal company systems while supporting the development of basic application features.
- Handled technical support requests and coordinated issue resolution across different business units.
Academic Background
Bachelor in Industrial Technology
Major in Computer Technology
Batangas State University — Lipa Campus
A. Tanco Drive, Maraouy, Batangas
High School Diploma
Bulacnin National High School
Brgy. Bulacnin, Lipa City, Batangas
Let's Work Together
Whether you have a project in mind, a position to fill, or just want to say hello — my inbox is always open.
Ready to start a project?
I'm currently open to new opportunities. Let's connect and build something great together.
Send Me a Message