Jan Kosterrrr

A highly versatile, energetic, and multi-skilled management couple offering a rare blend of master-level technical infrastructure maintenance and high-standard hospitality/clinical hygiene operations. Jan LG Koster (68): A seasoned technical operations manager, qualified electrician, Microsoft-certified systems engineer, and automotive technician. Former owner of 4 successful guest houses, Booking.com partner, and expert user of Nightsbridge. 50+ years of hands-on problem-solving experience.

Ester J Wernich (21): A dedicated hospitality and housekeeping specialist with 4 years of intensive clinical cleaning experience. Expert in deep-sanitisation protocols, staff supervision, and maintaining luxury-grade presentation standards. Together, we provide a complete, self-sustaining ecosystem for luxury estates, game lodges, or boutique guest houses—drastically reducing the owner's reliance on expensive outside contractors.

Owner / Nightsbridge Operator / Booking.com Partner - Self-Employed (4 Independent Guest Houses) - South Africa

Boutique Hospitality Operations & Channel Management

• Successfully launched, marketed, and managed 4 independent guest houses
• Utilized Nightsbridge for 5 years to seamlessly manage online room inventory, prevent double-bookings, and link directly with major OTAs including Booking.com
• Handled all financial backend duties using QuickBooks, managed online reputations, and maintained highly rated guest relationships

Owner & Network Operator - Self-Employed - Mossel Bay, Western Cape

Independent Infrastructure & Wireless Provider

• Designed, built, and currently manage an active Wireless Internet Service Provider (WISP) utilising exclusively Mikrotik hardware
• Provide robust, remote network management, troubleshooting, and wireless distribution

Specialist Mechanical & Electrical Technician - Self-Employed - Gauteng / Western Cape

Mechanical & Electrical Contracting

• June 2026: Completed a complete, top-to-bottom mechanical rebuild of a V6 Amarok engine
• Maintained fleet vehicles, diagnosed complex wiring faults, and executed residential/commercial electrical installations

Senior Cleaning Professional - Various Clinical Facilities - Gauteng

Clinical Hygiene Specialist (Ester)

• Spent 4 years executing and overseeing deep-cleaning protocols in high-standard medical/clinical settings
• Managed chemical inventories, adhered to strict health and safety compliance, and trained junior staff on efficiency and detail

Systems Engineering Qualification - Systems Engineering - SADF Computer Centre (1975 - 1975)

N3 Electrical Engineering Certificate - Electrical Engineering - Evander Technical College (1980 - 1980)

Section 13 Trade Test: Qualified Electrician - Electrical Trade - Sasol 2 (1981 - 1981)