yenffrey hernandez
@yenffreyhernandez
Experienced computer systems technician specializing in hardware, mobile repair, and web development.
Costa RicaWhat I'm looking for
I am a computer systems technician with over 20 years of experience in technical support, web development, and Level 5 mobile device repair, delivering reliable solutions across Intel, AMD and Mac platforms. I have a proven record of maintaining high uptime for servers, improving user engagement with responsive sites, and streamlining repair and operational processes.
I thrive in global remote environments, provide bilingual technical support (Spanish native, advanced English) and have led technical teams and MS Partner operations. I continuously upskill in full-stack JavaScript frameworks and Python, and I pursue certifications to stay current with modern development and AI tools.
Experience
Work history, roles, and key accomplishments
Data Entry / Customer Service
Jaspe & Agatha S.R.L.
Jan 2018 - Present (7 years 9 months)
Performed data entry and customer service for sports book operations, maintaining accurate records and supporting call center activities since 2018.
Freelance Technical Consultant
Jaspe & Agatha S.R.L.
Jan 2016 - Jan 2018 (2 years)
Developed responsive websites that increased user engagement by ~20%, configured Linux and Windows servers achieving 99% uptime, and provided bilingual technical translations for global projects.
Mobile Device Repair Technician
Repartcel C.A.
Dec 2008 - Jan 2016 (7 years 1 month)
Diagnosed and repaired complex mobile hardware/software issues (Level 5), streamlined repair workflows to reduce turnaround time by 15%, and delivered bilingual technical support.
Technical Support Specialist
Embassy of Brazil
Jun 2001 - Aug 2008 (7 years 2 months)
Maintained telecommunications systems and resolved 90% of issues within SLA while collaborating with multicultural teams and supporting operational continuity in secure environments.
General Manager (MS Partner)
290 Eximport C.A.
Feb 1991 - May 2000 (9 years 3 months)
Led operations and Microsoft-based solution deployments, managed inventory and technical teams, and optimized enterprise systems through strategic upgrades.
General Manager – Systems & Telecommunications
Servicios Frank C.A.
Jan 1986 - Dec 1990 (4 years 11 months)
Oversaw telecom network implementations achieving 99% uptime, directed multilingual technical teams, and implemented cost reductions of 10%.
Reservations Specialist
Viasa
Jun 1982 - Jul 1986 (4 years 1 month)
Managed international reservations and bilingual customer service across tourism and pre-boarding departments, improving booking accuracy by 20%.
Education
Degrees, certifications, and relevant coursework
Repartcel C.A.
Advanced Mobile Device Repair Technician (Level 5), Mobile Device Repair
1998 - 1998
Completed Level 5 Advanced Mobile Device Repair Technician training specializing in complex mobile hardware and software repairs.
Instituto Luisa Cáceres de Arismendi
Technical Programmer Analyst & Computer Technician, Computer Technology / Programming
1990 - 1992
Activities and societies: Programming (COBOL, Pascal, Fortran)
Completed Technical Programmer Analyst and Computer Technician coursework focusing on programming and computer systems.
MCMiami Dade Community College
Incomplete coursework, Electronic Engineering
1982 - 1983
Pursued studies in Electronic Engineering; coursework was not completed.
Miami Coral Park Senior High School
General Education Diploma (GED), General Education
1979 - 1981
Completed General Education Diploma (GED) with focus on foundational secondary education.
Availability
Location
Costa RicaAuthorized to work in
Job categories
Skills
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