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Our People

We have a truly global team!

Our people come from more than 23 different countries from all over the world. Through our differences, innovative ideas are born to challenge the status quo and redefine the future of energy trading.

At Cobblestone Energy, we have a flat organisational structure. We avoid formal hierarchy except where it is essential for business control and good governance. Candour is essential and we value rigorous debate. Decisions are made quickly and rooted in responsibility.







Alan Okino Ogong

Chief Executive Officer

Simon Holleran

Trading Director

Nizar Ajeeb

Chief Technology Officer

We don’t artificially manage and create a diverse and inclusive workplace. We just are. While our people come from more than 23 different nationalities we don’t apply superficial labels to them. We see diversity as the broad range of life experiences, opinions, thought processes and unique set of perspectives we bring to every aspect of our business. We focus on talent and strong cultural compatibility, recognizing that this can come from anyone from anywhere.

Caleb Kakuba

Trading Manager

Christopher Clarence

Trading Analyst

Andres Felipe Ospina Gualteros


Devesh Todarwal

Commercial Graduate

Esther Makhanu

Trading Analyst

Dmitry Voronetskiy

Graduate Software Engineer

Greaven Sempebwa

Lead Trader

Emmanuel Nassour

Graduate Software Engineer

Hugh Quigley

Commercial Graduate

Jitender Singh

Trading Analyst

Fungai Mahiya

Compliance and Contracts Officer

Manish Verma

Senior Developer

Ida Florence Nanyombi

HR Officer

Meiyi Jiang

Financial Controller

Mohamed Nagaty

Junior Developer

Louise Tipoe

Admin Assistant

Timothy Ahumuza

Finance manager

Samuel Paling


Nathaniel Grant

Junior Trading Analyst

Visas Vikumitsi Tah

Junior Developer

Ramkrishna Prasad


Scott Edwards

Commercial Graduate

Shafiq Ssebuuma Kaweesi


Stephen Kashumbusha

IT Specialist

Thuong Phan

Finance Analyst

Sai Ram Chittala

Commercial Graduate

Patrick Huang

Junior Trader

Ronald Kamugisha

Business Analyst

Jacob Holleran

Junior Trader

Luckson Arinaitwe

Scrum Master

Hanwant Shekhawat

Junior Trader

Dmitrii Trofimov

Commercial Graduate

Mikhail Kasimov

Junior Trading Analyst

Suhoon Cha


Julawat Paoin

Quantitative Analyst

Daler Kurbanov

Graduate Software Engineer

Thomas Kloetzke

Energy Meteorologist

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Our People

Our Story so far

Cobblestone Foundation

Our Company