John

Full Stack Developer, Software Developer

John

ID Verified
1,500/mo
General Trias, Philippines
Looking for Full-time
8 hours/day
Availability: US / EU / Asia timezone

Profile Description

Highly experienced and results-driven Full Stack Developer specializing in fast, scalable, and AI-powered web applications. Proficient in modern tech stacks, including React, Next.js, Node.js, and TypeScript, with expertise in designing responsive, SEO-optimized frontends. Skilled at developing secure, high-performance backend systems using Express, PostgreSQL, MongoDB, and Firebase. Committed to clean architecture, automation, and leveraging advanced technologies like real-time AI, voice proces...

Skills & Expertise

AI & Automation

GitHub CopilotAdvanced
API IntegrationAdvanced
AI Agent DevelopmentAdvanced
OpenAI APIAdvanced
n8nIntermediate
MidjourneyIntermediate
Workflow AutomationIntermediate
Multi-modal AIIntermediate

Software Development

ReactAdvanced
Next.jsAdvanced
Tailwind CSSAdvanced
HTML5/CSS3Advanced
MongoDBAdvanced
MySQLAdvanced
VercelAdvanced
Node.jsIntermediate
TypeScriptIntermediate
ZustandIntermediate
Redux/Context APIIntermediate
PrismaIntermediate
PostgreSQLIntermediate
FirebaseIntermediate
SupabaseIntermediate
GitHub ActionsIntermediate
React NativeIntermediate
Material-UI/Chakra UIIntermediate
tRPCIntermediate
AWS (EC2 S3 Lambda)Intermediate
ExpoIntermediate
CI/CD PipelinesBeginner

E-commerce & Marketplace

WooCommerceBeginner

Work Experience

Lead Full Stack Developer

Callexa

Jun 2025 - Sep 2025

Job Responsibilities:

Challenge: The organization required a real-time, sophisticated AI voice agent capable of immediate comprehension, understanding, and response. Implementation: Architected and implemented a complete real-time conversational AI bot utilizing Next.js, Node.js, Express, Twilio Media Streams, Deepgram, OpenAI, ElevenLabs, Supabase, and AWS/Vercel. Developed core logic for sentence boundary detection t...

CI/CD PipelinesSupabasePostgreSQLGitHub ActionsVercelGitHub CopilotNext.jsSpeech RecognitionAI Agent DevelopmentWorkflow Automation

Junior Front End Developer

Servebeez

Mar 2025 - Jun 2025

Job Responsibilities:

Challenge: The existing platform required a modern, high-performance landing page and the optimization of administrative and service provider dashboard interfaces. Implementation: Spearheaded the design and development of the new landing page utilizing Next.js, ensuring optimal speed and responsiveness. Collaborated with lead developers to significantly enhance the usability and workflow of the pr...

API IntegrationNext.jsTypeScriptNode.jsTailwind CSSPostgreSQLSupabasetRPCVercel

Full Stack Developer

Freelance Project

Jun 2024 - Jan 2025

Job Responsibilities:

Challenge: The client required a comprehensive, automated system for end-to-end attendance tracking, precise payroll computation, and efficient employee notification management. Implementation: Architected and deployed a full-stack platform utilizing Next.js (frontend), Node.js and Express (backend), hosted on AWS EC2. Secured the application through the implementation of JWT (JSON Web Tokens) in...

PostgreSQLAWS (EC2 S3 Lambda)SupabaseCI/CD PipelinesVercelGitHub ActionsGitHub CopilotNext.jsNode.jsTailwind CSS

Junior Full Stack Developer

Poshsidekick

Sep 2023 - Feb 2024

Job Responsibilities:

Challenge: The existing SaaS platform required substantial enhancements to its mobile application stability, administrative tool functionality, and overall system performance. Implementation: Re-engineered and maintained the SaaS mobile application utilizing React Native, effectively resolving critical performance bottlenecks and rectifying UI/UX defects. Optimized the administrative control panel...

GitHub CopilotAPI IntegrationReact NativeNext.jsZustandTailwind CSSNode.jsTypeScriptRedux/Context APIPrisma

Quick Stats

Age24 years
GenderMale
English LevelConversational
Other Languages
Tagalog/FilipinoFluent
ID VerificationVerified
Portfolio
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Education

Bachelor's Degree

Cavite State University

2021 - 2025