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Karl L. Darnayla

Experience

Six years of building, from a first Hello World in 2020 to freelance contracts and a studio with more than 30 completed projects. Newest first.

  1. 2026 to now

    Now

    Freelance contract developer

    KodebyKarl, project-based client work

    Delivering full-stack systems for local and international clients, including web portals such as MCFG Cloud and point of sale systems.

    • Built and launched a SaaS platform with over 1,000 active users across five countries
    • Builds React and Next.js front ends on Node.js and PostgreSQL back ends
    • Provides maintenance, cloud deployment and system integration after launch
    • React
    • Next.js
    • TypeScript
    • Node.js
    • PostgreSQL
    • Docker
    • AWS

  2. 2025

    Full-stack developer

    Beam PH

    Built web applications and digital tools with front end and back end working together.

    • Engineered core features across the interface and the REST services
    • Worked with other teams to ship features
    • Optimized database queries and API response times
    • TypeScript
    • React
    • Node.js
    • PostgreSQL
    • Tailwind CSS

  3. 2024 to 2025

    WordPress developer and IT intern

    Bus transport and CMS engineering

    Built and launched booking websites for more than ten Philippine bus companies.

    • Delivered 10+ custom booking websites used by thousands of passengers daily
    • Wrote custom PHP booking modules, WooCommerce seat reservations and payment workflows
    • Tuned database schemas, caching and mobile layouts
    • WordPress
    • PHP
    • MySQL
    • WooCommerce
    • JavaScript
    • REST APIs

  4. 2024

    Full-stack developer

    End-to-end delivery

    Took full ownership of web applications, from database design to interface.

    • Built multi-tier applications with React and Express
    • Integrated payment gateways, authentication and real-time state
    • React
    • Node.js
    • Express
    • PostgreSQL
    • Tailwind CSS

  5. 2023

    Back-end developer

    Learning phase

    Went deep on APIs, databases and server-side architecture.

    • Learned relational schema design, indexing and SQL optimization
    • Built secure authentication with JWT, sessions and password hashing
    • Node.js
    • Express
    • Python
    • PostgreSQL
    • REST APIs

  6. 2022

    Web developer

    Front-end delivery

    Built responsive interfaces and interactive components.

    • Turned wireframes into responsive React and HTML/CSS interfaces
    • Checked cross-browser behaviour and smooth transitions on every device
    • JavaScript
    • React
    • HTML5
    • CSS3
    • Tailwind CSS

  7. 2022

    Freelance developer

    Student projects

    Built capstone systems, web tools and academic software for fellow IT and CS students.

    • Delivered several custom web applications on tight deadlines
    • Learned client communication and project scoping
    • PHP
    • MySQL
    • JavaScript
    • HTML/CSS
    • Bootstrap

  8. 2021

    College student

    Formal IT studies

    Began a college IT program, with foundations in data structures, algorithms and software engineering.

    • Kept a high academic standing while teaching himself engineering
    • Joined coding challenges and software workshops
    • Data structures
    • OOP
    • Database management

  9. 2020

    Started programming

    First projects

    Wrote his first lines of code and found his interest in software engineering.

    • Built first static websites in HTML and CSS
    • Learned logic, loops and functions
    • HTML
    • CSS
    • JavaScript basics

Tell me what you need to run.

Send a message and I will reply myself, usually within a day.

karlbykode@gmail.com