Christopher Jhun S. Belo

• •Designed and developed TimeKo, a multi-tenant SaaS platform for workforce and business operations.
• •Built core business modules covering employee management, timekeeping, payroll, inventory, POS, scheduling, leave management, and multi-store operations.
• •Architected the application end-to-end using React, TypeScript, Vite, Supabase/PostgreSQL, and serverless APIs.
• •Developed the application as a Progressive Web App (PWA) for web-based workforce operations across desktop and mobile devices.
• •Implemented Web Push notifications for real-time employee and system notifications on supported devices.
• •Designed tenant-aware data structures and access controls to support multiple companies, stores, employees, and operational workflows.
• •Owned the complete product lifecycle including architecture, database design, frontend/backend development, authentication, deployment, testing, and production troubleshooting.

Tech: React, TypeScript, Vite, Supabase, PostgreSQL, PWA, Web Push, Serverless

• •Led UI feature development using React, TypeScript, and React-Bootstrap, delivering responsive and maintainable interfaces.
• •Collaborated on scalable backend APIs using Python/Flask and PostgreSQL.
• •Applied modular architecture, clean-code practices, and optimized React state management.
• •Coordinated with cross-functional teams to deliver high-quality features and releases.

Tech: React, TypeScript, React-Bootstrap, Flask, PostgreSQL, Git, Agile/SCRUM

• •Built a production-oriented Progressive Web App using React, TypeScript, Redux, and Material UI.
• •Developed scalable backend services using Node.js/TypeScript and AWS Lambda.
• •Implemented DynamoDB and S3 for application data and file storage.
• •Applied modern development and performance best practices across the frontend and backend.

Tech: React, TypeScript, Redux Toolkit, Node.js, AWS Lambda, DynamoDB, S3

• •Delivered a complete web application end-to-end, covering architecture, frontend, backend, cloud infrastructure, and deployment.
• •Built responsive interfaces using React, Vite, Material UI, and Redux Toolkit.
• •Designed and deployed serverless backend infrastructure using AWS Lambda, API Gateway, DynamoDB, S3, CloudFront, SES, and Route 53.
• •Implemented application monitoring and optimization using AWS CloudWatch.
• •Independently managed deployments, troubleshooting, and stakeholder communication.

• •Developed interactive web applications using React, Node.js, and AWS Serverless.
• •Collaborated with cross-functional teams following Agile/SCRUM practices.
• •Established CI/CD workflows using GitHub and automated unit-testing pipelines.

Led backend development using PHP, MySQL, Redis, Nginx, and Docker. Built GraphQL APIs and integrated third-party services. Developed Magento 2 customizations and performed performance optimization.

Designed and developed SOA/microservices architectures using React, Node.js, PHP, and Docker. Managed AWS infrastructure and CI/CD pipelines. Mentored developers and contributed to cross-functional technical strategy.

Developed Magento custom modules and integrations, maintained e-commerce platforms, optimized performance, and implemented security updates.

Developed and maintained Magento-based e-commerce platforms, customized modules and integrations, and collaborated with international development teams.

Developed websites and web applications, worked directly with clients on project requirements, and implemented SEO-focused solutions.

Developed and maintained company websites, static sites, and custom themes.