Joseph Matthew CaballasEngineer Philippines, Manila joseph.caballas@bld.ai | Joseph is a full-stack developer with experiences in web and mobile development and DevOps. He has worked with Python, Django, ReactJS, React Native, Shopify, AWS, Azure, GitLab, Docker, Kubernetes, and Terraform in multiple global projects. |
| Work Experiencebld.aiAugust 2022 - January 2023August 2022 - January 2023 Mobile Developer for Multinational Oil and Gas Company (React Native, Django)
- Developed a full-stack Android web app for on-site assessments in the oil industry with a team of three engineers
- Defined database models, setup REST API endpoints with authorization, and structured the admin site workflow
- Applied Sketch UI/UX design using React Native UI Kitten components and custom CSS
- Created a PDF export tool for downloading assessments with customized styling, enabling data access outside the app
MAHUSAIAugust 2026 - PresentAugust 2026 - Present DevOps & Backend Engineer for Agent System (Django, Kubernetes, Alibaba Cloud)
- Maintained Helm-deployed Kubernetes infrastructure, resolving deployment, authentication, and Grafana/Loki issues
- Implemented NAS-to-OSS archival for Kubernetes workloads using least-privilege RRSA authentication
- Developed and tested REST API endpoints using Django REST Framework
MAHUSAIMarch 2026 - April 2026March 2026 - April 2026 DevOps Engineer for Meeting Platform (Azure)
- Provisioned Azure resources through Terraspace/Terraform
- Configured networking, identity, and security controls as specified
- Built frontend and backend Dockerfiles to be used in application containers
MAHUSAIOctober 2025 - February 2026October 2025 - February 2026 Web Developer for Product Configurator App (Shopify)
- Developed a Shopify App with advanced product selection and bundling features
- Enhanced frontend UX and theme consistency across mobile and desktop based on Figma designs
- Prepared app for Shopify App Store launch with performance optimization, demo store testing, and screencasts
MAHUSAIJune 2025 - October 2025June 2025 - October 2025 Web Developer for a Food Brand (Shopify)
- Developed extensive Shopify theme features by redesigning major sections across Home, Product, Landing, and Blog pages based on Figma designs
- Optimized SEO and website performance through alt text, schema fixes, faster image rendering, among other improvements
- Integrated and debugged analytics and marketing tools using GA4, GTM, Clarity, and A/B testing
MAHUSAIJanuary 2025 - May 2025January 2025 - May 2025 Web Developer for HR Compliance Tool (React, Django)
- Led a team of four engineers, collaborating with the product manager to implement new features
- Translated project requirements and designs into actionable tasks, assigning them to team members
- Conducted code reviews and facilitated the onboarding of new developers
MAHUSAISeptember 2024 - January 2025September 2024 - January 2025 Web Developer & DevOps Engineer for HR Portal v2 (React, Django, AWS)
- Contributed to the development of a new version of the app, utilizing modern frontend and backend technologies to improve performance and scalability
- Performed data migration from the previous app while ensuring data integrity and maintaining schema consistency
- Implemented secure token-based authentication and integrated third-party APIs
- Provided critical support during production deployment by identifying and resolving infrastructure issues
MAHUSAISeptember 2023 - September 2024September 2023 - September 2024 Web Developer & DevOps Engineer for HR Portal (React, Django, AWS)
- Extended the existing frontend and backend codebase to implement additional features
- Implemented automated email sending and file storage using AWS SES and S3
- Deployed the app to a Kubernetes cluster and migrated an existing app to save on server costs
- Configured GitLab CI/CD pipeline and improved build times by 80% by migrating to Vite and utilizing cache
- Initiated End-to-End testing using Cypress to ensure all frontend processes behave as expected
MAHUSAIApril 2023 - May 2023April 2023 - May 2023 Web Developer for Knowledge Base (Django, Kubernetes, Azure)
- Developed a static website for company documentation generated using MKDocs as a repository for coding standards, boilerplates, training materials, and the company handbook
- Implemented GitLab authentication in Django to restrict access to company employees
- Configured Azure DevOps CI/CD test, build, and deploy stages, streamlining Azure Kubernetes Service deployment
MAHUSAIMarch 2023 - April 2023March 2023 - April 2023 Web Developer for HR Automation Tool (Django, Docker, AWS)
- Automated the creation of employee communication accounts and shared Google Calendar with employees upon GitLab account creation, expediting onboarding
- Deployed local instances of open-source software using Docker Compose to mirror the production environment and integration among the services
- Configured GitLab CI/CD test, build, and deploy stages, streamlining AWS Elastic Container Service deployment
EducationKeimyung UniversityJuly 2019 - August 2019July 2019 - August 2019 Civil Engineering University of Santo TomasAugust 2015 - June 2020August 2015 - June 2020 Bachelor's Degree in Civil Engineering; Cum Laude SkillsAmazon Web Services (AWS) Azure DevOps CSS Django Docker Git version control Gitlab HTML JavaScript framework Kubernetes Python React JS Shopify Terraform Vue JS |
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