John Cosio

Full Stack Developer with over 13 years of experience in web development.

Projects ranging from creating new applications and maintenance of legacy applications.

I try to understand the most efficient approach based on provided resources and constraints to provide by quantifiable value in terms of profits and statistics.

Making it simple. No need for fancy tech buzzwords.

Let me know how I can help.

John Cosio

How the years went by:

Full circle on Java

Returned to office. Now working on legacy codes with EJB, JDBC, SOAP/REST APIs and to old and trusty Eclipse.

Freelance again (Pandemic WFH trend)

Got to work on many JS UI getting popular; ReactJS/NextJs, VueJs/Nuxt, NestJs but still consistent with Laravel projects.

Back to corporate with opportunities to use

Spring, SpringBoot, NodeJs/ExpressJs, SOAP/REST APIs, Zend, Laravel, VueJs, AngularJs, PolymerJs. Dabbled a bit on mobile with Flutter/Dart

Started Freelancing

Introduction to WordPress, Shopify and CodeIgniter as these are the most sought after platforms this during this time.

First role as Junior Developer

Started using two stacks. PHP with MySQL then Java (JSP, JDBC, Servlets), PostgreSQL. Eventually adopted Spring and Hibernate.

Technical Skills

The table below answers in checks the common question to "rate yourself on a scale of 1 to 5".

  • Front End Development

    HTML, CSS, Tailwind CSS, Bootstrap, Markdown, JavaScript, jQuery, Element UI, Livewire, TypeScript, Angular, Vue.js, Nuxt.js, React, Next.js(This page), Flutter, Phaser


  • Back End Development

    PHP, WordPress, Laravel, Node.js, Express.js, Restify, Java, Spring Boot, EJB, Go, Python, REST API, Apigee, Redis


  • Database

    PostgreSQL, MySQL/MariaDB, MongoDB, Database2


  • DevSecOps

    Git, GitHub, GitHub Actions, Bitbucket, Bitbucket Pipelines, Amazon Web Services, Serena Dimensions, Fortify, WebSphere, Vagrant, Docker, Bamboo, Jenkins, Travis CI, Bash, Linux, Ubuntu


  • Project Management

    Jira, GitLab, ServiceNow, Trello, Clickup, IBM Notes, Confluence


HTMLCSSTailwind CSSBootstrapJavaScriptjQueryElement UITypeScriptAngularVue.jsNuxt.jsReactNext.jsFlutterPHPWordPressLaravelNode.jsJavaGoPythonRedisPostmanPostgreSQLMySQLMongoDBGitGitHubBitBucketAmazon Web ServicesDockerLinuxUbuntuDigitalOceanJiraGitLab



    Java Developer

  • Freelance

    Full Stack Developer

  • Asticom Technology Inc

    Frontend Web Developer Lead

  • Freelance

    Full Stack Developer

  • MicroSourcing

    Full Stack Developer

  • RCG Global Services

    Front End Web Developer

  • Freelance

    Full Stack Developer

  • Philippine National Bank

    Senior Software Engineer

  • Allied Banking Corporation

    Junior Software Engineer