Rummel Ceniza

Software Engineer | AI-Assisted Development | Full-Stack & Backend Systems

Talent

BaybayMember since October 13, 2026

OpenAI CodexAnthropic ClaudePHPJavaScriptGoRustC#LaravelReact.jsNext.jsStimulusJSVue.jsTailwind CSSBootstrapPostgreSQLMySQLSQLAPI IntegrationsTemporalbackend servicesDockerGitWindows Server

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OpenAI CodexAnthropic ClaudePHPJavaScriptGo

About

Software Engineer with 10+ years of experience spanning full-stack web development, backend services, API integrations, data systems, deployment, and systems administration. Strong background in PHP/Laravel, JavaScript, PostgreSQL, Docker, and modern web development, with recent work expanding into Go, Rust, React.js, Next.js, Temporal, and AI-assisted engineering workflows using OpenAI Codex and Anthropic Claude. Experienced in building maintainable production systems, solving complex technical problems, and working across the software development lifecycle.

Experience

Software Engineer - Puma Managed IT - Remote

(2025-11 - 2026-09)

Built and maintained software across backend, frontend, integration, and workflow layers using technologies including Go, Rust, React.js, Next.js, and Temporal.
Used OpenAI Codex and Anthropic Claude as part of AI-assisted engineering workflows for implementation, investigation, refactoring, testing, and technical documentation.
Developed and improved APIs, integrations, and data-processing workflows with an emphasis on maintainability, reliability, and reusable engineering patterns.
Worked across the development lifecycle from technical investigation and implementation through testing, review, deployment, and production support.

Senior Full Stack Developer - CoDev

(2023-11 - 2025-11)

Built and maintained web applications and backend services with PHP/Laravel, JavaScript, StimulusJS, Tailwind CSS, and PostgreSQL.
Designed and optimized PostgreSQL schemas and queries to improve data integrity, maintainability, and application performance.
Containerized and deployed applications with Docker and collaborated through Git-based branching, review, and delivery workflows.
Developed a high-performance Excel export service in Rust to support fast and reliable data export operations.
Collaborated with product, design, and engineering teammates to translate requirements into production-ready solutions.

PHP Developer - CoDev

(2020-05 - 2023-11)

Developed and maintained Laravel applications, authentication flows, APIs, and data-management features.
Implemented responsive frontend functionality and reusable UI components using JavaScript, StimulusJS, Tailwind CSS, HTML, and CSS.
Supported database design, API integration, code review, testing, and production troubleshooting.

Web Developer - DMS.PH Inc.

(2018-05 - 2020-04)

Developed and maintained internal web applications using Laravel, Vue.js, Bootstrap, PHP, JavaScript, jQuery, MySQL, HTML, and CSS.
Worked across frontend and backend development while following MVC architecture and collaborative Git workflows.

Science Research Assistant - Visayas State University Eco-FaRMI

(2017-06 - 2018-04)

Built a Web GIS Map Server/Eco-FaRMI application with Laravel, MapServer, TileCache, and PostgreSQL; supported Windows Server, NAS, networking, and file security.

Computer Maintenance Technician I - Visayas State University - DOST Phil-LiDAR Project

(2015-11 - 2017-05)

Maintained Windows Server, NAS storage, network connectivity, and project file security.

Computer Programmer - Visayas State University - Finance/Cash Division

(2013-07 - 2015-11)

Built and maintained internal financial and student-account systems using C#/.NET, MySQL, and MS Access; improved performance and functionality.