Born in Kiambu County in 1978, raised in Githunguri by two wonderful parents – James Mwangi & Ruth wambui, alongside three siblings Terry Muchiku Kamau, Kamau Grace Mukuhi & Nicholas Kamau Mdosi, Esther Wangui’s journey began in the rich soils of central Kenya. She attended Kahunira Primary School, Kagwe Girls High School, and later trained as a nurse at Machakos Medical Training College. Looking back, it is remarkable how God was quietly preparing her for a life of service, compassion and leadership.
People often tell me, “Simon, we don’t know where you would be without Kui.” One even joked, “Every time I open the your timeline, all I see is Kui Kui!” I usually smile because, in many ways, they are right. Behind every public engagement, every leadership role and every success story of mine stands a woman who has consistently believed in me, prayed for me and walked beside me.
Today, I celebrate not just my wife, but my greatest teammate.
I have now lived with Kui for more than half of her life. We met at the Labour Ward of Machakos District Hospital — and, yes, also we danced at the then famous Ikuuni Club in Machakos. Her beautiful big round eyes were my greatest attraction – macho ya gololi. Looking back, meeting her remains one of the greatest blessings God has given me. I have never regretted it for a single day.
After completing her Enrolled Community Nursing training at Machakos Medical Training College (MTC), she worked at St. Florence Clinic in Kangemi, where she sharpened her midwifery skills while developing an impressive ability to manage both people and health services. I spent many days visiting Kangemi during those years, watching her grow professionally.
She later joined the The Ministry of Health on contract during Hon. Charity Kaluki Ngilu tenure as Minister for Health. She served in Machakos for only six months before the contracts came to an abrupt end. When that chapter closed, she quietly decided that public service had served its purpose and began searching for the next opportunity.
Jobs were scarce.
Ironically, she resisted joining The Nairobi Women’s Hospital because I was already working there. She simply did not want to work in the same institution as her boyfriend. Eventually, after considerable persuasion (or perhaps gentle coercion!), she accepted the position.
Looking back, that decision changed everything.
At Nairobi Women’s Hospital she blossomed into an exceptional nurse and midwife. She became a ward and theatre in-charge, acquiring management skills that continue to define her leadership today. Nairobi Women’s Hospital was truly transformative for both of us. The colleagues there even gifted us a microwave during our wedding — a microwave that still faithfully serves our family today! Better still, both of our children, Andrew & Melissa, were born there, making the hospital forever part of our family story.
After seven fulfilling years, she embraced a completely different challenge by joining Médecins Sans Frontières (MSF) Harm Reduction Programme. There she became one of Kenya’s respected experts in harm reduction, working extensively with needle exchange programmes in Kangemi. Her work helped improve the lives of people battling substance use disorders, and one of the programme’s proudest achievements was introducing Hepatitis C treatment to vulnerable populations. Harm reduction is often misunderstood, but Kui understood that every human being deserves dignity, hope and another chance.
As contracts eventually do, that chapter also came to an end.
In the midst of a demanding career, she never stopped learning. She upgraded to Kenya Registered Community Health Nurse (KRCHN) at Nazareth Medical Training College and later earned her Bachelor of Science in Nursing from Kenya Methodist University (KeMU). She has always believed that learning never stops.
Then came the boldest chapter of her life.
Drawing from years of professional experience — and deeply personal encounters with the devastating effects of alcohol and substance abuse — Kui took an enormous leap of faith.
In 2019 she founded Nueva Esperanza Treatment and Rehabilitation Centre at Membley Estate.
Many people saw only a rehabilitation centre.
I saw a calling.
Her understanding of harm reduction, compassionate nursing, excellent management skills and unwavering faith created something unique. Nueva Esperanza quickly earned a reputation for restoring lives with dignity, professionalism and love. Some of her former clients have become her greatest ambassadors— a testimony that lives truly can be transformed.
Recognising that women recovering from addiction often require different environments and unique support systems, she courageously established a second rehabilitation and wellness centre that is one of the few ‘Women-Only’ Rehabs – Nueva Esperanza Treatment & Rehabilitation Centre – Ngewa Branch, affectionately known as “Empower Her Recovery Centre.” It provides women with safety, dignity, healing and hope and is one of the most sort services today. This was her second branch.
Still, she was not finished.
Driven by increasing demand, she established the third branch —Nueva Esperanza Treatment & Rehabilitation Centre – Kimbo in Ruiru, a modern 70-bed Level 4B facility positioned to meet Kenya’s growing rehabilitation needs. At a time when alcohol and substance abuse continue to devastate families across our nation, she chose not merely to complain about the problem but to become part of the solution.
Today she is not only saving lives.
– She is creating jobs.
– She is paying taxes.
– She is mentoring health professionals.
– She is restoring families.
– She is giving people a second chance.
Forty-eight years have certainly not been lived in vain.
Yet, for all her professional accomplishments, the greatest beneficiaries of Esther’s life have been our family.
– Two wonderful children.
– Twenty-six years of partnership.
– Countless road trips and international travels.
– Many laughs.
– A few disagreements (because no marriage is perfect!).
– Thousands of shared memories.
– A church wedding in 2005.
– A traditional Kikuyu wedding in 2017.
Through it all, she has remained my closest friend, strongest supporter, toughest critic when necessary, and greatest cheerleader. She has improved my “city Kikuyu,” welcomed my family as her own, and built lasting friendships that continue to enrich our lives.
The Bible describes her well:
“She is clothed with strength and dignity; she can laugh at the days to come.” — Proverbs 31:25
“Her children arise and call her blessed; her husband also, and he praises her.” — Proverbs 31:28
“Two are better than one, because they have a good return for their labour.” — Ecclesiastes 4:9
“The Lord bless you and keep you; the Lord make His face shine upon you and be gracious to you.” — Numbers 6:24–25
My prayer today is that God grants you many more years filled with good health, wisdom, joy and favour. May He continue to enlarge your territory, bless the work of your hands, and allow you to keep transforming lives through Nueva Esperanza. May your greatest achievements still lie ahead.
Happy 48th Birthday, my love.
Thank you for choosing me.
Thank you for walking this journey with me.
Thank you for making our house a home and our family a place of love.
I love you deeply, and I look forward to growing old together.
❤️ Happy Birthday, Bae! ❤️
(P.S. For anyone wondering about birthday gifts… kindly send them to me. I promise they will reach the birthday girl… after appropriate quality assurance! 😂🎁)