Summary
Overview
Work history
Education
Skills
Custom
Affiliations
Languages
References
Timeline
Generic

Mario Demetriou

London,UK

Summary

Dynamic and results-driven professional with extensive expertise in customer relationship management, public speaking, and strategic planning. Demonstrates exceptional skills in sales negotiation, conflict resolution, and project management, ensuring optimal performance under pressure. Adept at fostering team collaboration and maintaining professionalism while adapting to diverse environments. Proficient in swimming techniques and water safety principles, with a strong understanding of child development and adult learner instruction. Committed to delivering high-quality service through creativity, innovation, and proactive risk management.

Overview

31
31
years of professional experience

Work history

Sales Assistant

Nick Nack Jiwa Ltd
London, UK
05.1994 - 01.1998
  • Managed high-pressure situations calmly, ensuring seamless store operations during peak hours.
  • Delivered exceptional after-sales service, fostering customer loyalty and repeat business.
  • Conducted daily inventory checks to maintain accurate stock levels.
  • Balanced multiple tasks efficiently while upholding high-quality customer care.
  • Processed cash transactions swiftly, guaranteeing accurate end-of-shift accounting.
  • Addressed customer needs promptly, generating positive feedback and enhancing loyalty.
  • Acquired product knowledge rapidly to offer informed guidance to customers.
  • Provided personalised shopping advice to enrich overall customer experiences.

Customer Service Manager

Eastern Energy
Borehamwood, UK
06.1998 - 01.1999
  • Executed daily responsibilities with accuracy and efficiency.
  • Acquired and applied new skills, enhancing productivity.
  • Delivered exceptional customer service while managing complex situations.
  • Implemented protocols for streamlined complaint resolution.
  • Conducted regular staff meetings to boost morale and engagement.
  • Facilitated conflict resolution sessions to improve team dynamics.
  • Monitored team compliance with company policies, fostering collaboration.
  • Designed training programmes to elevate team performance.

Telemarketing Manager

Icon Telecoms
London, UK
05.1999 - 01.2001
  • Coordinated daily operations to achieve targets effectively.
  • Conducted regular performance reviews to drive continuous staff improvement.
  • Developed training programmes that enhanced employee performance and integration.
  • Fostered a positive work environment, boosting team morale significantly.
  • Established strong customer relationships through effective communication.
  • Utilised CRM software for efficient data management and record-keeping.
  • Led team meetings to ensure clear communication and goal alignment.
  • Maintained accurate records of calls and sales, ensuring transparency.

Actor

Paling & Jenkins Management
London, Greater London
07.2006 - Current
  • Delivered emotive performances that captivated audiences during live shows.
  • Studied accents and dialects to add authenticity to character portrayals.
  • Participated in dress rehearsals for polished performances before opening night.
  • Practised lines repetitively with fellow actors to ensure cohesive group performances.
  • Applied makeup and costumes convincingly to transform into various characters.
  • Took direction from directors while maintaining consistent character interpretation.
  • Engaged audiences through passionate storytelling and body language.
  • Executed original tricks and comedy routines to entertain diverse audiences.

Customer Service Representative

uSwitch
London, UK
01.2009 - 01.2014
  • Managed high volume of calls, actively assisting callers with utility bill concerns and identifying cost-effective alternatives with other suppliers.
  • Fielded managerial calls and efficiently addressed customer complaints, showcasing adept conflict resolution skills.
  • Supervised and trained incoming team members, providing guidance and support during onboarding process.
  • Delivered constructive feedback to new hires, pinpointing areas for improvement and setting targeted goals for skill enhancement.
  • Enhanced communication channels through regular updates on company policies and promotions.
  • Improved customer satisfaction by effectively handling complaints and inquiries.

Property Landlord/Project Manager

Freelance
London, UK
01.2014 - 06.2025
  • Initiated identification and evaluation of builders, architects, and surveyors through comprehensive interviews.
  • Led project management for restoration works, collaborating with planning and building control departments.
  • Addressed structural challenges while ensuring compliance with building regulations.
  • Oversaw research and acquisition of four buy-to-let investment properties within budget of £1.1M.
  • Conducted thorough property research, negotiated offers, and managed purchasing processes.
  • Achieved capital growth exceeding 35% on initial property values over three years.
  • Secured rental yields between 8% and 12%, enhancing overall profitability.
  • Streamlined administrative processes to improve operational efficiency across multiple properties.

Teaching assistant

Sugarman Education
London, Greater London
05.2024 - 01.2025
  • Ensured safety of pupils during extracurricular activities, fostering an accident-free environment.
  • Assisted children individually to complete assignments and reinforce learning concepts.
  • Encouraged student autonomy through guided independent study initiatives.
  • Prepared effective learning materials to stimulate academic interest and engagement.
  • Supported teachers in managing challenging behaviour, providing feedback during progress meetings.
  • Maintained sensitivity towards students with additional needs, boosting their confidence and development.
  • Supervised pupils during breaks to uphold safety standards within school premises.
  • Contributed to lesson planning and preparation, enhancing curriculum delivery efficiency.

Telemarketing agent

RSVP MEDIA
Canary Wharf, Tower Hamlets
11.2024 - 05.2025
  • Developed strong customer relationships through consistent, friendly communication.
  • Improved call handling time without compromising on quality of service delivery.
  • Captured detailed information from customers to create accurate profiles.
  • Utilised persuasive skills to overcome objections and close deals successfully.
  • Exceeded personal targets regularly, contributing substantially towards team goals.
  • Showcased patience when dealing with slow or hesitant customers, providing comprehensive answers to questions asked.
  • Navigated multiple systems simultaneously during calls for efficient data entry.
  • Adapted easily to changes in script or sales strategies as per company requirements.
  • Adhered strictly to company policies and guidelines during customer interactions.
  • Followed scripts meticulously, maintaining professionalism throughout calls.
  • Enhanced product knowledge by participating in regular training sessions.
  • Promoted upselling initiatives skillfully during conversations with established customers.
  • Handled high call volumes with accuracy and efficiency for optimum productivity.
  • Acted as first point of contact for customer issues and queries.

Education

NVQ Levels 1 - 4 - ICT

Kingsway College
09.1997 - 06.1998

Access Certificate - Humanities & Social Science

City Literary Institute
London
09.2002 - 06.2003

BA (Hons) - Acting

Drama Centre London / University of the Arts
09.2003 - 06.2006

STA Level 2 Award in Teaching Swimming - Swimming Teacher

Safety Training Awards
London
05.2025 -

Skills

  • Customer Relationship Management
  • Confident Public Speaking
  • Articulate Communication
  • Sales & Negotiation
  • Interpersonal Skills
  • Emotional Intelligence
  • Creativity & Innovation
  • Performance Under Pressure
  • Conflict Resolution
  • Customer Service
  • Project Management
  • Strategic Planning
  • Team Collaboration
  • Professionalism
  • Adaptability
  • Reporting & Documentation
  • Water safety principles
  • Stroke technique expertise
  • Professional ethics
  • Water safety consciousness
  • Understanding child development
  • Child-Friendly approach
  • Stroke technique knowledge
  • Understanding of hydrodynamics
  • Sensitivity to individual needs
  • Pool chemical balance understanding
  • Tailoring approach per student
  • Proactive risk management
  • Adult learner instruction
  • Swimming equipment operation
  • Pupil motivation
  • Proficient record keeping
  • Patience with learners
  • Knowledge of swimwear trends
  • Water aerobics instruction
  • Health and Safety Compliance
  • Lesson planning
  • Fitness assessments
  • Swimming and water safety
  • Swimming techniques

Custom

  • Headed 'can do' approach to workloads at RSVP, consistently attaining and exceeding targets with a focus on delivering high-quality customer care and service.
  • Excelled in mentoring colleagues and executing formal training programmes, whilst managing recruitment and disciplinary processes.
  • Elevated standard of customer service through coaching, increased profitability.
  • Exhibited financial acumen in promoting and selling products and services at Icon and Eastern Energy, demonstrating proficiency in acquiring comprehensive knowledge of entire product spectrum.
  • Achieved results-driven success in supporting and administering people and processes to meet targets, adapting to new challenges.
  • Established strong professional relationships by building rapport.
  • Recognised for outstanding performance with promotions to leadership roles overseeing teams and critical sales and business operations missions.

Affiliations

  • Travelled through India, South East Asia and Australia from February 2001 - June 2002. My travels led me to teaching English to Tibetan Buddhist Monks in the North of India in Mcleod Gang where the Dalai Lama resides. I completed my PADI Open Water diving certificate in Thailand. I worked and travelled through my time in Australia as well. I am passionate about film and I am also a writer as well. I have two teenage daughters and have been with my partner Angie since 2002. Where we met in a hostel in Sydney Australia.

Languages

English
Native
Greek
Advanced

References

References available upon request.

Timeline

STA Level 2 Award in Teaching Swimming - Swimming Teacher

Safety Training Awards
05.2025 -

Telemarketing agent

RSVP MEDIA
11.2024 - 05.2025

Teaching assistant

Sugarman Education
05.2024 - 01.2025

Property Landlord/Project Manager

Freelance
01.2014 - 06.2025

Customer Service Representative

uSwitch
01.2009 - 01.2014

Actor

Paling & Jenkins Management
07.2006 - Current

BA (Hons) - Acting

Drama Centre London / University of the Arts
09.2003 - 06.2006

Access Certificate - Humanities & Social Science

City Literary Institute
09.2002 - 06.2003

Telemarketing Manager

Icon Telecoms
05.1999 - 01.2001

Customer Service Manager

Eastern Energy
06.1998 - 01.1999

NVQ Levels 1 - 4 - ICT

Kingsway College
09.1997 - 06.1998

Sales Assistant

Nick Nack Jiwa Ltd
05.1994 - 01.1998

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Mario Demetriou