Johnstone Mainya

Johnstone Mainya: Email & Phone Number

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Program Officer (Consultant)| 2030 WRG Kenya | Water Security | Policy Reform | Market Systems at The World Bank Group|Nairobi County, Kenya

Position:

Program Officer (Consultant)| 2030 WRG Kenya | Water Security | Policy Reform | Market Systems at The World Bank Group

Location:

Nairobi County, Kenya

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Last updated: 2026-07-01
Updated: 2026-07-01

Found email addresses for Johnstone Mainya:

Business emails:
j*****a@worldbankgroup.org,
j**************a@worldbankgroup.org
Personal emails:

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Work Experience 12 years

Program Officer (Consultant)| 2030 WRG Kenya | Water Security | Policy Reform | Market Systems at The World Bank Group

Oct 2020 - Current

National Head of Programs | Strategy | Partnerships | Sector Transformation at Hydrological Society of Kenya

Nov 2020 - Jul 2023

Water Management Supervisor | Water Security | Strategy | Institutional Partnerships at Tullow Oil

Oct 2019 - Jul 2020

Water Resources Consultant | Water Security | Policy Advisory | Infrastructure Development at County Government of West Pokot

May 2019 - Oct 2019

Technical Advisor | GIZ-IWaSP | Water Stewardship | Multi-Stakeholder Partnerships at Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH

May 2017 - Dec 2018

Hydrologist | Water Security | Resource Planning | Stakeholder Engagement at Hydrosans Services Ltd

Jan 2014 - Sep 2015

Johnstone Mainya started working in 2014, then the employee has changed 5 companies and 5 jobs. On average, Johnstone Mainya works for one company for 2 years 2 months.

Johnstone is proficient in English and Kiswahili. Their professional focus is Analytical Skills, Circular Economy, and Climate Change across 3 core areas.

Johnstone holds Professional Ethics and Training Course on ISO 30500 and ISO 24521: International Non-sewered Sanitation Standards certifications and has been awarded Pan African University Scholarship to study MSc. Water Engineering

Education

Master of Science (MSc), Water Engineering Grade: A (Excellent) at PAUWES - Pan African University Institute of Water and Energy Sciences (including Climate Change)

Bachelor of Science (First Class Honours) Hydrology and Water Resources Management at Maseno University

Hydroaid - Water for Development Management Institute

Spring School and Workshop at Cologne University of Applied Sciences

Spring School and Workshop at The University of Bonn

Frequently Asked Questions

SignalHire found verified email addresses for Johnstone Mainya, both business and personal. Their business email is j*****a@worldbank.org, and personal emails include j*************a@gmail.com.
SignalHire found a verified phone number for Johnstone Mainya: +254-***-***-8424.
You can reach Johnstone Mainya through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.
Johnstone Mainya has 12 years of professional experience. They have held roles including National Head of Programs | Strategy | Partnerships | Sector Transformation, Water Management Supervisor | Water Security | Strategy | Institutional Partnerships, and Water Resources Consultant | Water Security | Policy Advisory | Infrastructure Development at companies such as Hydrological Society of Kenya, Tullow Oil, and County Government of West Pokot. Their education includes Master of Science (MSc), Water Engineering Grade: A (Excellent) from PAUWES - Pan African University Institute of Water and Energy Sciences (including Climate Change), and Bachelor of Science (First Class Honours) Hydrology and Water Resources Management from Maseno University.
Yes. Johnstone Mainya's SignalHire profile was last updated on 1 July 2026, reflecting their current position as Program Officer (Consultant)| 2030 WRG Kenya | Water Security | Policy Reform | Market Systems at The World Bank Group in Washington, DC, United States.

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