I’m a Product Manager with experience in product development and sourcing, specializing in peripherals and computer products. I’ve worked across the product lifecycle, from market research and supplier sourcing through sampling, testing, pricing, production, and launch.
I work directly with manufacturers to define specifications, review samples, resolve issues before production, and coordinate timelines. I use customer feedback, competitor research, and sales data to guide product decisions.
As a Product Manager, I’ve also managed inventory levels, forecasting and product allocation, using sales performance and stock data to support availability and identify slow-moving products.
I’m open to opportunities in product management, product development, sourcing, and sample coordination. My portfolio features products I personally led from concept to launch.
John Michael De Jesus
@ratratanx
Product Manager | Product Development & Sourcing | Gaming Peripherals & Consumer Electronics | Supplier Management, Sampling & Product Launch
PhilippinesExperience
Work history, roles, and key accomplishments
Product Manager
Tech It Easy Business Services Inc.
Mar 2025 - Jun 2026 (1 year 3 months)
Owned the RAKK Gears product portfolio across keyboards, mice, headsets, computer cases, gaming furniture, cooling, and audio products, from product planning and sourcing through launch and inventory depletion. Translated market opportunities into product requirements and coordinated with China-based manufacturers.
Product Development Lead
Tech It Easy Business Services Inc.
Jun 2022 - Feb 2025 (2 years 8 months)
Led end-to-end development of gaming and computer peripherals, maintaining timelines and milestones for research, supplier sourcing, quotations, prototypes, revisions, approvals, production, and launch. Conducted marketplace and competitor research and built long-term supplier relationships.
Business Owner and Online Seller
Self Employed
Jan 2010 - Dec 2022 (12 years 11 months)
Operated a computer shop from 2010 to 2020 and handled purchasing, pricing, inventory, sales, customer service, and day-to-day business operations. Sourced computer peripherals from China for online selling and coordinated mechanical-keyboard group buys.
Project Administrative Assistant Clerk and Typist II
TCGI Engineers
Mar 1997 - Sep 2013 (16 years 6 months)
Prepared and maintained ISO-compliant project and technical documentation, including bid abstracts, purchase orders, notices to proceed, contracts, and monthly accomplishment reports. Reviewed specifications and coordinated documentation with contractors and suppliers.
Sales Utility Clerk
Expressions Stationery Shop Inc.
Aug 1996 - Jan 1997 (5 months)
Monitored merchandise displays and stock levels, prepared inventory reports, and assisted customers.
Data Encoder
Network Telecommunications Company and Innodata Processing C
Oct 1995 - Apr 1996 (6 months)
Encoded survey and document data, edited and arranged documents, and prepared scanned content for word processing.
Education
Degrees, certifications, and relevant coursework
Philippine Science and Technology Center
Computer Technology, Computer Technology
1998 - 1998
Completed a Computer Technology program from June to December 1998.
STI College
Computer Programming, Computer Programming
1994 - 1996
Completed a Computer Programming program from June 1994 to April 1996.
Tech stack
Software and tools used professionally
Availability
Location
PhilippinesAuthorized to work in
Website
ratratanx.github.ioSalary expectations
Job categories
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