Nap Joseph Calub
Senior Software Engineer
Senior Platform Engineer specializing in DevOps, CI/CD automation, and cloud-native infrastructure. 10+ years of experience delivering scalable, resilient full-stack solutions at companies like Oracle and Google.
Work Experience
Senior Platform Engineer
November 2023 to October 2025
Penbrothers
Makati City, Philippines
I am part of the Pipeline-as-a-Service (PASS) team, responsible for designing, implementing, and maintaining the end-to-end build and release pipelines for all applications within our organization. Our mission is to provide a standardized, scalable, and efficient route-to-production, ensuring smooth and secure deployments across multiple platforms. In this role, I focus on optimizing the continuous integration and deployment experience for all product teams, ensuring releases are timely, reliable, and compliant. By leveraging automation and best-in-class tooling, our team delivers a resilient, self-service pipeline infrastructure that accelerates feature delivery across the organization.
Senior UI Engineer
October 2021 to September 2022
Oracle
Makati City, Philippines
I collaborated with hundreds of developers worldwide to enhance Oracle's Higher Education Student Cloud information system. I implemented critical features like subjects, tags, and grade management using Oracle JavaScript Extension Toolkit (JET) and Oracle Application Development Framework (ADF). I diligently maintained 90%+ code coverage in our repositories by crafting comprehensive unit tests with Mocha, Chai.js, and Sinon.JS and ensured feature adherence to acceptance criteria by developing functional tests using Node.js and Selenium. Lastly, to demonstrate forward-thinking, I contributed to long-term sustainability by migrating legacy vanilla JavaScript modules to TypeScript.
Business Apps Developer
May 2018 to May 2021
Concentrix
Quezon City, Philippines
As a vendor at Google, I spearheaded the development and maintenance of business-critical dashboards and tools for their Network Operations Center (NOC). Within three months, I earned the prestigious Go and TypeScript Readability certification, showcasing my adherence to best practices and coding style. Leveraging data sources like Bigtable and BigQuery, I crafted interactive dashboards with Angular, Data Studio, and PLX Dashboard. I also created tools for migrating data from BigQuery, alerting systems using gRPC, modernizing legacy Node.js and Python codebases, and implementing advanced ISP SLA calculations and visualizations in Angular. I effectively collaborated with stakeholders and technical project managers to ensure project success and proposed innovative Project Requirements Documents (PRD) for new initiatives.
Senior Process Executive
August 2017 to April 2018
Cognizant
Taguig City, Philippines
As a vendor at Google, I drove significant improvements for renowned Asia-Pacific brands, optimizing their Google Ads and Google Analytics setups and implementing Dynamic Remarketing using Google Tag Manager—my expertise in digital marketing strategies translated into substantial results and improved metrics.
Solutions Architect
January 2017 to August 2017
As a consultant, I spearheaded a team managing the telecommunications network asset handover to PLDT and Globe Telecom. Developing an innovative internal web application using Python and Django, I ensured data accuracy and streamlined processes. Collaborating with external project managers, I created a powerful utility tool to import, clean, and process large XLSX files for efficient asset management.
Instructor & Mentor
June 2014 to November 2014
As a dedicated part-time instructor, I taught computer software fundamentals and mentored students in web and mobile app development, passionately sharing expertise on technology trends through engaging talks and workshops.
Full-stack Software Developer
September 2013 to January 2016
I showcased my diverse expertise by skillfully developing full-stack web and cross-platform mobile applications using technologies like Python, Django, JavaScript, Node.js, AngularJS, and Appcelerator Titanium. I collaborated with project managers and product owners, implementing features for various projects catering to thousands of daily active users, including social media follower apps, RSS feed readers, interactive dashboards, and HIIT training applications. As a community advocate, I facilitated training boot camps for high school students to create web applications with Python and Django, embodying the company's commitment to giving back to the community.
Recent Projects
Built a modern REST API serving Philippine Congress data from a Neo4j graph database, as part of the BetterGov.ph initiative. Provides comprehensive endpoints for congressional data, legislators, bills, and committees with automatic OpenAPI documentation.
Deno
TypeScript
Hono
Neo4j
Zod
OpenAPI / Swagger / Scalar
December 2024 - February 2025
Built an interactive sign-up platform for Christian small discipleship groups with real-time integration to Fluro church management system. Created a seamless registration experience for connecting church members to community groups.
Deno
TypeScript
Fresh
Tailwind
Fluro API
Domain Availability Monitor
December 2024 - October 2025
Developed an automated system that monitors domain accessibility across geographic regions and dynamically updates DNS records when blocks are detected. Integrates with Cloudflare API for DNS management and implements automatic failover routing using infrastructure-as-code principles.
Python
FastAPI
Vue.js
Terraform
Cloudflare API
Deployment Orchestrator
November 2023 - October 2025
Maintained an application that orchestrates the deployment of production stages across all apps, ensuring only one app can deploy at any given time. Handles multi-platform deployments with automatic rollback on failures.
Python
FastAPI
Kubernetes / OpenShift
GitLab API
JIRA API
GitLab Webhook Receiver
November 2023 - October 2025
Maintained a tool that handles JIRA ticket creation and updates based on GitLab CI pipeline job statuses. Creates respective tickets for each platform an app is released into for audit purposes.
Python
Flask
MySQL
Kubernetes / OpenShift
GitLab API
November 2022 - December 2022
Architected and developed a comprehensive fan-made index of The Wandering Inn using graph databases. Created an interactive 3D visualization using React Three Fiber.
TypeScript
Deno / Fresh
Neo4j / SurrealDB
React Three Fiber
Next.js
October 2021 - September 2022
Enhanced Oracle's Higher Education Student Cloud information system, implementing critical features like subjects, tags, and grade management with 90%+ code coverage.
Oracle JET / ADF
TypeScript
Node.js
Selenium
Jenkins
