Hi, I’m Lowin A. Castillo, a results-driven Business Administration graduate with 4+ years of experience spanning sales, business operations, customer service, digital marketing, and graphic design. I’ve consistently helped businesses grow, including generating ₱8,470,593.54 in revenue across 219 air-conditioning units in six months at The Aircon Haus by Bravotech, and I’ve built and branded multiple ventures from the ground up with strong branding and marketing collateral. I’m certified in QuickBooks bookkeeping and Virtual Assistant tasks, and I’m fully equipped for remote work with a dedicated home office and robust backup infrastructure. I enjoy turning ideas into tangible outcomes through creative campaigns, efficient operations, and hands-on design work, all while maintaining a proactive, solution-focused mindset.

Lowin A. Castillo

Hi, I’m Lowin A. Castillo, a results-driven Business Administration graduate with 4+ years of experience spanning sales, business operations, customer service, digital marketing, and graphic design. I’ve consistently helped businesses grow, including generating ₱8,470,593.54 in revenue across 219 air-conditioning units in six months at The Aircon Haus by Bravotech, and I’ve built and branded multiple ventures from the ground up with strong branding and marketing collateral. I’m certified in QuickBooks bookkeeping and Virtual Assistant tasks, and I’m fully equipped for remote work with a dedicated home office and robust backup infrastructure. I enjoy turning ideas into tangible outcomes through creative campaigns, efficient operations, and hands-on design work, all while maintaining a proactive, solution-focused mindset.

Available to hire

Hi, I’m Lowin A. Castillo, a results-driven Business Administration graduate with 4+ years of experience spanning sales, business operations, customer service, digital marketing, and graphic design. I’ve consistently helped businesses grow, including generating ₱8,470,593.54 in revenue across 219 air-conditioning units in six months at The Aircon Haus by Bravotech, and I’ve built and branded multiple ventures from the ground up with strong branding and marketing collateral.

I’m certified in QuickBooks bookkeeping and Virtual Assistant tasks, and I’m fully equipped for remote work with a dedicated home office and robust backup infrastructure. I enjoy turning ideas into tangible outcomes through creative campaigns, efficient operations, and hands-on design work, all while maintaining a proactive, solution-focused mindset.

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Language

English
Advanced

Work Experience

Sales Assistant at The Aircon Haus by Bravotech Enterprise Corp.
November 1, 2025 - May 1, 2026
Generated ₱8,470,593.54 in total revenue across 219 air-conditioning units over 6 months, consistently exceeding monthly targets. Co-created and led a 50% discount promo with a local vlogger, including a Facebook reel that launched the November campaign. Managed 15–25 daily inquiries, resolving product and service concerns within the same business day. Designed promotional graphics (tarpaulins, flyers, product posts) for 5+ Facebook posts weekly. Coordinated with clients and technicians to reduce scheduling delays and improve service turnaround.
General Manager at Wellstone Water Station
June 1, 2023 - Present
Oversaw daily operations serving 200+ regular household and commercial clients. Built the entire brand from scratch — designed the logo, flyers, tarpaulin, container labels, bottled water labels, business card, and social media content. Managed inventory, deliveries, and supplier coordination ensuring zero stockout months. Implemented customer retention strategies (follow-up calls, loyalty service) driving steady repeat business growth.
Marketing & Admin Intern at 106.3 Yes FM Dagupan
December 1, 2024 - April 1, 2025
Assisted in planning and executing on-air and digital marketing promotions for listener engagement campaigns. Handled administrative tasks and basic radio operations in a live broadcast environment. Completed 600 hours of on-the-job training (Dec 17, 2024 – Apr 1, 2025) — certified by station management.
Business Owner at L.K Grill House
June 1, 2021 - October 1, 2021
Founded and operated a small food business managing daily ops, customer service, and order fulfillment from launch. Designed all brand materials: logo, Facebook cover photo, tarpaulin, menu flyers, and promotional posts. Gained hands-on experience in budgeting, supplier coordination, staffing, and small business management.

Education

Bachelor of Science in Business Administration (Marketing Management) at Lyceum Northwestern University
January 1, 2021 - January 1, 2025
Water Refilling Station & Plant Operators — Certification Course & Workshop at University of the Philippines Manila — College of Public Health (Water Safety Plan Development)
January 1, 2025 - January 1, 2025
Bachelor of Science in Business Administration (Marketing Management) at Lyceum Northwestern University
January 1, 2021 - January 1, 2025
Water Refilling Station & Plant Operators — Certification Course & Workshop at Water Refilling Station & Plant Operators
January 1, 2025 - June 7, 2026
Water Safety Plan Development at University of the Philippines Manila – College of Public Health
January 1, 2025 - June 7, 2026

Qualifications

Bookkeeping with QuickBooks
June 1, 2025 - June 7, 2026
Basic Virtual Assistant Training
June 1, 2025 - June 7, 2026
English Language Proficiency Training
June 1, 2025 - June 7, 2026
On-the-Job Training — 106.3 Yes FM Dagupan (600 Hours)
December 1, 2024 - April 1, 2025
Water Refilling Station & Plant Operators — Certification Course & Workshop
January 1, 2025 - January 1, 2025
Water Safety Plan Development
January 1, 2025 - June 7, 2026
Bookkeeping with QuickBooks
June 1, 2025 - June 7, 2026
Basic Virtual Assistant Training
June 1, 2025 - June 7, 2026
English Language Proficiency Training
June 1, 2025 - June 7, 2026
On-the-Job Training (600 Hours) — 106.3 Yes FM Dagupan
December 17, 2024 - April 1, 2025

Industry Experience

Professional Services, Retail, Media & Entertainment, Software & Internet, Education, Other