Efren Macasaet

Engineering Lead

• Architected and constructed an end-to-end experimentation platform using Next JS and integrated it with third-party platforms (Airtable, Streamlit, Launch Darkly, etc.).
• Developed an SDK for the experimentation platform to maintain consistency across teams.
• Conducted investigations into application issues through the execution of SQL queries on the data.
• Facilitated architecture discussions to address common and recurring problems across teams. This enabled the design of a system that not only tackles one use case but also addresses multiple pain points.
• Oversaw the recruitment and direct management of 12 engineers.
• Created a self-service schema management platform to ensure uniformity in data collection. Collaborated on CSS enhancements to improve the user experience.
• Established a campaign management system that allows stakeholders to independently manage campaigns and tags. This resulted in improved HTML page scores and SEO rankings, as tags are no longer loaded when campaigns have concluded.
• Led the initiative to transition third-party tracking to the server side, employing Server-side Google Tag Manager and Google Cloud Platform. This lead to a match rate of users from 95.9% to 99.9%

Senior Technical Product Manager - Marketing Data Engineering

• Conceptualized and constructed the marketing data platform for ingesting data from TV platforms through CSV imports.
• Led the migration of Facebook and Google Ads tracking from the client-side to the server-side.
• Conducted investigations into application issues by executing SQL queries on the data.

Technical Product Manager, Data Platform (attribution)

• Developed an attribution platform that caters to multiple attribution use cases. Previously, attribution was confined to a single model, but the platform my team created empowers the business to examine the data using various models.
• Conducted investigations into application issues by executing SQL queries on the data.

Global (Technical) Product Manager

• Developed Expedia's inaugural end-to-end experimentation platform, which proved instrumental in fostering an inner-source culture within the company. The application gained significant traction and saw widespread use across the organization.
• Employed RESTHeart for the API, utilized MongoDB for the database, and implemented React JS for the front end, all while hosting the application on Azure.

Senior Product Analyst, Mobile Apps

• Led the integration of a third-party platform (Crittercism/Apteligent) for measuring the speed performance of mobile apps.
• Constructed a performance dashboard using Tableau.
• Enhanced the application's page speed by reducing the size and number of API requests, resulting in a million-dollar increase in revenue.
• Conducted investigations into application issues by executing SQL queries on the data.

Senior Product and Site Optimization Analyst, APAC

• Led the implementation of voice search for users in China, Japan, Taiwan, and Korea, resulting in increased conversion rates in these markets.
• Worked in collaboration with the search team to enhance tokenizers tailored to the China, Japan, Taiwan, and Korea markets, leading to improved click-through rates.
• Developed a company-wide dashboard using Tableau to oversee overall conversion metrics.
• Conducted investigations into application issues by executing SQL queries on the data health specific to the APAC markets.

Product Manager

• Head of product development for LiveItChina.com.
• Setup a Philippines company and office and hired the entire engineering and UX team

Digital Producer

• Handled website development of clients based in Hong Kong and Australia
• Developed a platform for connecting brands with influencers

Lead Developer

• Conceptualized and developed the ilovehongkong.hk, ilovesoho.hk, ilovelkf.hk brands.
• Oversaw the recruitment and direct management of engineers

Lead Web Developer

• Led the engineering team based in India and UK (CNN Travel)
• Performance optimization for the CNNGo Drupal site

Web Architect

• Initially collaborated with the Classifieds team based in Singapore, later relocating to Hong Kong.
• Envisioned and spearheaded the development of SCMP's new vertical named "At Your Service," serving as a serviced apartment directory in Hong Kong.

Senior Web Developer

• Oversaw the project of transitioning Hardwarezone.com to an API-based platform powered by Google Mini.
• Managed the upkeep of the high-traffic Hardwarezone forums.
• Developed campaign pages for clients, including Canon, Nokia, Samsung, and others.

Coffee Brew Notes

I built this application to track every shots I pull from my coffee machine. This enables me to save the various configurations of my grinder in relation to my supply of beans. It has the ability to upload images for every shot.

Tech setup:

Next JS, Material UI, AWS Cognito (user management), AWS API Gateway (API), AWS DynamoDB (data store), Serverless Framework for deploying the stack, Automated versioning and deploy via Github Actions

BuyHomeGPT

A data-driven insights providing strata, location and investment analysis using OpenAI API

Tech setup:

Monorepo, Next JS, Material UI, AWS Cognito (user management), AWS API Gateway (API), AWS DynamoDB (data store), Serverless Framework for deploying the stack, Automated versioning and deploy via Github Actions

Auction Platform

Tech setup:

Monorepo, Next JS, Material UI, AWS Cognito for user management, AWS API Gateway for API, AWS DynamoDB for data store, Serverless Framework for deploying the stack, Automated versioning and deploy via Github Actions