William Arthur Greenfield
Security Officer
Castledawson,Derry County
Summary
Dedicated security professional with extensive expertise in security procedures adherence, access control systems, and electronic security measures. Proven ability to manage hostile situations with integrity and maintain public area safety through vigilant patrolling and effective communication. Skilled in CCTV operation, alarm systems testing, and emergency response coordination, ensuring comprehensive risk assessment and incident reporting accuracy. Committed to upholding company policy enforcement while demonstrating exceptional customer service dedication and interpersonal savvy. Career goals include advancing security management capabilities to enhance organisational safety protocols. Has both Team supervisor and Management experience.
Overview
9
9
years of professional experience
16
16
years of post-secondary education
Work history
Security officer
Mitie
Belfast, Mid and East Antrim
08.2025 - Current
- Monitored premises to ensure safety and security of staff and visitors.
- Assisted in managing access control systems to regulate entry to buildings.
- Reported incidents and irregularities to management for prompt resolution.
- Carried out health and safety risk assessments accurately for reducing potential hazards.
- Patrolled premises regularly, contributing to a safe work environment.
- Checked identification of visitors thoroughly to prevent unauthorised entries onto the premises.
- Wrote detailed incident reports, facilitating ongoing improvements in security protocols.
- Maintained order by monitoring CCTV screens and reporting suspicious activities.
- Checked ID cards and documented details in security log.
- Completed thorough incident reports, recording exact observations, occurrences and witness statements.
- Used initiative and independent judgment within established guidelines to respond appropriately to security situations.
- Created hazard-free environment by reporting on building damage and irregularities.
Security officer
Kingdom Security Services
Antrim, Mid and East Antrim
03.2024 - 03.2025
- Monitored premises to ensure safety and security of personnel and property.
- Conducted routine patrols to identify and report any suspicious activities or hazards.
- Responded promptly to alarms and incidents, ensuring appropriate action was taken.
- Assisted in implementing security protocols to enhance overall safety measures.
Security officer
Mitie
Belfast, Mid and East Antrim
01.2017 - 03.2024
- Monitored premises to ensure safety and security of staff and visitors.
- Conducted regular patrols to identify and address potential security risks.
- Reported incidents and irregularities to management for prompt resolution.
- Maintained accurate logs of daily activities and incidents for review.
- Responded to alarms and emergencies swiftly to mitigate risks and protect assets.
- Carried out health and safety risk assessments accurately for reducing potential hazards.
- Patrolled premises regularly, contributing to a safe work environment.
Education
A-Levels - Occupational Health and Safety
Health Matters
Northern Ireland 03.2024 - 03.2025
GCSEs - English
Drummond Community High School
Edinburgh 07.1989 - 04.1993
GCSEs - Mathematics
Drummond Community Hight School
Edinburgh 07.1989 - 04.1993
Physics -
Drummond Community High School
Edinburgh 07.1989 - 04.1993
GCSEs - Chemistry
Drummond Community High School
Edinburgh 07.1989 - 04.1993
Skills
- Security procedures adherence
- Access control system knowledge
- Electronic security measures familiarity
- Metal detector usage
- Microsoft office mastery
- Public area safety checks
- Alertness and awareness
- Security equipment handling
- Patrolling expertise
- Integrity maintenance
- Intercom systems use
- Responsive communication
- Restrained use of force
- Customer service dedication
- People evacuation procedures
- Risk assessment capability
- Company policy enforcement
- CCTV operation knowledge
- Decision-Making under stress
- Baggage inspection techniques
- Vehicle inspection techniques
- Sensitive information handling
- Radio communications
- Professional demeanour
- Emergency response coordination
- CCTV monitoring
- Evidence preservation
- Fire safety training
- Report-writing
- Surveillance proficiency
- Driving licence
- Alarm system testing
- Security risk analysis
- Incident reporting accuracy
- Security protocols familiarity
- First aid proficiency
- Safety consciousness
- Risk assessment proficiency
- Interpersonal savvy
- Decision making under pressure
- Time efficiency
- Keyholding services
- Resilience under pressure
- Health and Safety Compliance
- Customer Service
- Communication skills
- Cultural awareness
- Interpersonal communication
- Team Leadership
- Resourcefulness
- Conflict Resolution
- Inventory management
- Microsoft Office Suite
- Database management
- Fire safety knowledge
Affiliations
- Skateboarding, Gaming and any outdoor activity that catches my eye.
Accomplishments
I have been awarded Mitie Stars on 3 occasion's for going above and beyond the call of duty.
I was made a manager for a brewery which led to my becoming a trouble shooter in the Bar management industry.
In almost every job since leaving school I have ended up in a position of authority or responsibility.
Custom
I have never had a job I cannot do. I am resourceful and pliable. I have the capacity to learn new skills. I also seem to be able to teach what I learn, as I have moved on and up I have trained my replacement many times.
References
References available upon request.
Timeline
Security officer
Mitie
08.2025 - Current
Security officer
Kingdom Security Services
03.2024 - 03.2025
A-Levels - Occupational Health and Safety
Health Matters
03.2024 - 03.2025
Security officer
Mitie
01.2017 - 03.2024
GCSEs - English
Drummond Community High School
07.1989 - 04.1993
GCSEs - Mathematics
Drummond Community Hight School
07.1989 - 04.1993
Physics -
Drummond Community High School
07.1989 - 04.1993
GCSEs - Chemistry
Drummond Community High School
07.1989 - 04.1993