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Nathan Cooks


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Nathan Cooks

Nickname: 'Nathan'

Johannesburg based telecoms busniess consultant

Currently resides in: Gauteng, South Africa

Born in Johannesburg South Africa

As a Professional Financial Manager with a diverse managerial experience of more than 15 years with reputed telecommunications firms, I have acquired considerable expertise in overseeing all aspects of financial management, office administration and developing billing strategies. Having served MTN Group as the Senior Manager for over 2 years, I have successfully devised and implemented innovative billing strategies which has minimised inherent risks and prevented both over-billing and revenue loss. These duties were carried out in liaison with the CFO and General Manager’s to facilitate cross functional settlement agreements, while implementing long-term business strategies and recommending areas of future development.

Through my broad experience with leading telecommunications firms like MTN, Virgin Mobile SA and Cell C, I have been able to hone my business acumen and revenue generating abilities. Besides being successful at performing routine financial duties such as budgeting, auditing, and revenue management, I have been able to optimise overall processes by suggesting innovative systems in streamlining the overall financial functionalities. Advisory services and recommendations that I provided at the executive level have been influential in making critical decisions for the organisation.

With a highly professional approach towards my job, I strive at consistently maintaining a high level of work ethics and a task-oriented approach, which has been helped me to improve my credibility within my organization. I am also able to maintain high levels of team morale and performance in situations of immense pressure, while ensuring the task goals at met within the given timeframe. I believe that these experiences have given me the skills, maturity and confidence to assume higher organisational responsibilities with leading telecommunication firms in the future.

To find out more about my skills and expertise, please feel free to contact me at

Contact details

M: +27832130098

Web presence

Business Address

Gauteng, South Africa

Professional details

Current Position(s)

Project Consultant | MTN
2015 - present

Specialist Consultant | Self Employed
2014 - present

Providing specialist management advisory and operational support services in the telecommunications sector on interconnect, national and international roaming and MVNO's.

Previous Position(s)

Senior Manager Wholesale Billing | MTN
2013 - 2014

I have worked with MTN group over the past 7 years and have performed a wide range of managerial roles. In this role, I oversaw the overall operations of the wholesale billing team, while ensuring alignment to business objectives including consistent development, performance management and appraisal. I performed these duties in liaison with the CFO and General Manager’s to facilitate cross functional settlement agreements, while implementing long-term business strategies and recommending areas of future development. Along with that I performed operational planning duties, while developing and optimizing financial control systems to minimize risks, prevent over-billing and revenue loss. By Initiating ad-hoc shared service related projects, I was able to provide business plans, besides managing resources, including staff members, finances and products. I also managed budgeting duties including planning, developing and reviewing budgets, while increasing cost effectiveness and extrapolating the trends in predicting future financial requirements. Besides that I was able to successfully provide support in modelling and developing load new agreements with wholesale partners like SNO, Neotel, VANS and Belgacom, while maintaining the wholesale revenue and cost value chain. Overall I have played a key role in the compilation of routine financial statements, besides streamlining the financial systems in developing efficient billing methods

Interconnect Operations Manager | MTN
2008 - 2013

In this role I developed novel processes to ensure routine interconnect billing with high accuracy, besides maintaining the smooth functioning of the CSG InterconnecT billing system. Along with that, the new Interconnect billing system was implemented, besides designing business models for other departments to determine its impact on various sections in facilitating scenario planning.

Revenue Assurance Specialist | Virgin Mobile SA
2007 - 2008

As the Revenue Assurance Officer I monitored revenue assurance, while assisting in the review of system integration and validating wholesale bill from Cell C for VMSA usage. Other subsidiary duties were carried out in strict compliance to the Cell C wholesale bill and joint service provider agreement, besides evaluating and updating policies and procedures.

Interconnect Specialist | Cell C
2005 - 2007

Having served over 6 years with Cell C, I have progressed gradually over 3 key roles. As the Interconnect Specialist, I delivered financial information with regards to Interconnect system administration, wholesale billing, balance sheet, MVNO billing and national roaming. Here I directed a dynamic team in the development of functional designs for mobile number portability, asymmetrical interconnection and for the Virgin Mobile South Africa venture. Besides that I also evaluated and updated policies and procedures to efficiently apply internal control, along with taking corrective action required for all audit reports.

Assitant Billing Manager | Cell C
2005 - 2005

In this role I was given primary charge of disseminated key financial information through Oracle AR Module Administration, balance sheet and gross margin reporting, besides overseeing entire aspects of InterconnecT. Along with that I managed a dynamic team in collection duties including checking debtor’s age, validation, approval, collection and payment, while representing the finance section for wholesale billing in various projects.

Interconnect Specialist | Cell C
2002 - 2008

Supervisor Billing | Cell C
2001 - 2004

In my first role with Cell C I primarily initiated the development of functional designs including ATM recharges, international roaming, Value Added Services (VAS) and Community Services Telephones (CST)

Assistant Billing Accountant | Mobile Telephone Networks
2000 - 2001

Having started out my career with MTN group I quickly progressed to obtain the role of Assistant Billing Accountant. In this role, I delivered financial information via Oracle GL Module Administration, flux reports (GL analysis), along with balance sheet and gross margin reporting.

International Roaming Administrator | Mobile Telephone Networks
1998 - 2000

In this role I obtained expertise in collection duties including checking debtor’s age, validation, approval, collection and payment, while representing the finance section for wholesale billing in various projects.

Educational history



1999 - 1999

Bookeeping Diploma - Bookeeping

Hoerskool Die Fakkel

1993 - 1993

Senior Certificate Grade 12 (Matric)

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