SAMUEL NYARKO
Summary
Disciplined and technically driven Marine Engineering graduate with solid hands-on experience in marine propulsion systems, auxiliary machinery, and HVAC/Refrigeration systems. Equipped with practical workshop training and strong understanding of cooling systems maintenance. Completed two years of structured regimental cadet training, developing resilience, leadership qualities, and the ability to perform effectively under pressure in demanding maritime environments. Experienced in A/C troubleshooting and refrigeration handling, installation, electrical repairs, and preventive maintenance, committed to safety and operational efficiency in line with international maritime standards. STCW certified, ready to contribute technical competence and professionalism as a Marine Engine Cadet/ Assistant HVAC-Refrigeration Technician.
Overview
5
5
years of professional experience
2
2
years of post-secondary education
1
1
Certification
Work History
Independent HVAC/Refrigeration and Air Conditioning Technician
Self-Employed
02.2024 - Current
- Performed installation, servicing, and maintenance of residential and light commercial air conditioning systems.
- Conducted refrigerant charging, leak detection, and system performance testing
- Repaired and replaced components including compressors, capacitors, thermostats, and electrical parts
- Diagnosed and repaired faults in split units, window units, and refrigeration systems
- Provided preventive maintenance to improve system efficiency and lifespan
- Built and maintained client relationships through reliable and timely service delivery
- Ensured compliance with safety standards and proper handling of tools and refrigerants
Apprentice Technician(Mentorship)
Astra Engineering and Services Ltd.
Accra
07.2025 - 11.2025
- Installation of split, multi-split, VRF/VRV, ducted AC systems, chillers, and refrigeration units
- Diagnosed and repaired common mechanical and electrical faults
- Assisted with refrigerant handling, evacuation, and system charging
- Followed safety procedures and completed service documentation
- Collaborated with team members to streamline workflow and enhance operational efficiency.
- Maintained a clean and organized work environment to promote safety and productivity.
Senior Apprentice (Training & Supervisory Role)
Regional Maritime University
Accra
10.2022 - 09.2023
- Supervised National Service personnel during HVAC/Refrigeration tasks.
- Assembling and Installation of Refrigeration and Air Conditioner Systems.
- Conducted preventive maintenance to improve system efficiency and lifespan.
- Performed routine inspection, fault diagnosis, and basic repair under supervision.
- Followed safety procedures and maintained proper job documentation.
- Mentored junior apprentices on safety protocols and operational best practices.
National Service Personnel
Regional Maritime University
10.2021 - 12.2022
- Troubleshooting and Overhauling of Air Conditioners and Refrigeration Systems.
- Repairing and replacing components for the entire Air conditioner and Refrigeration systems.
- Delivered preventive maintenance to improve equipment efficiency and extend lifespan under supervision.
- Ensured compliance with safety standards and proper handling of tools and refrigerants
- Inventory taking and Record keeping
Education
STCW 2010 - Standards of Training, Certification, And Watchkeeping
Regional Maritime University
Associate of Applied Science - Marine Engineering
Regional Maritime University
Accra, Ghana 09.2019 - 07.2021
Skills
- Marine Propulsion Systems
- Fuel, Lubrication & Cooling Systems Maintenance
- Pumps, Compressors & Valves
- Electrical & Equipment Repairs
- Welding & Brazing
- Air Conditioning & Refrigeration Systems
- A/C Troubleshooting & Refrigerant Handling
- System Installation & Preventive Maintenance
- STCW Certified
- Maritime Safety Procedures & Risk Assessment
- Inventory Control & Record Keeping
- Microsoft Office Suite
- Strong Attention to Detail
- Effective Communication
- Teamwork & Collaboration
- Adaptable to Multicultural Work Environments
Certification
- Certificate of Proficiency in Elementary First Aid
- Certificate of Proficiency in Personal Survival Techniques
- Certificate of Proficiency in Fire Prevention and Fire Fighting
- Certificate of Proficiency in Personal Safety and Social Responsibilities
- Certificate of Proficiency for Seafarers with Security Awareness and designated Security duties
- EPA Section 608 Certification (Certified)
- OSHA 10-Hour Certification (Certified)
- Certificate of Regimental Cadetship Training
Accomplishments
- Bronze Standard of The Duke of Edinburgh's International Award
References
References available upon request.
Languages
English
Proficient
C2
Spanish
Beginner
A1
Timeline
Apprentice Technician(Mentorship)
Astra Engineering and Services Ltd.
07.2025 - 11.2025
Independent HVAC/Refrigeration and Air Conditioning Technician
Self-Employed
02.2024 - Current
Senior Apprentice (Training & Supervisory Role)
Regional Maritime University
10.2022 - 09.2023
National Service Personnel
Regional Maritime University
10.2021 - 12.2022
Associate of Applied Science - Marine Engineering
Regional Maritime University
09.2019 - 07.2021
STCW 2010 - Standards of Training, Certification, And Watchkeeping
Regional Maritime University