Working closely with Bahrain's Ministry of Finance and Central Bank led to an opportunity to return to Bahrain to work in government. Today, as Assistant Undersecretary at the Ministry of Sustainable Development, she coordinates sustainability efforts across Bahrain while promoting them globally.
For Hamzah, sustainable development is not the environmental agenda it is often assumed to be. "People sometimes misinterpret it as only being linked to climate and the environment, but it's more than that," she says. "It's about creating fair industries, healthy competition, more jobs, better productivity and efficiency - reducing inequalities and ensuring inclusive access to the services that underpin long-term growth."
Financial inclusion sits at the heart of the work. Widening access to finance for individuals and small businesses, she argues, is one of the most powerful levers available to a government serious about long-term growth. "By giving people that access, by digitising your economy, you unlock opportunities and accelerate progress towards sustainable development - and in doing so, you start to tackle other challenges too, including health and the environment."
The approach is gaining attention beyond Bahrain's borders - countries across the region, she says proudly, are looking to Bahrain as a model for embedding sustainable development at the heart of government.
For someone who almost didn't study economics at all, she has come a long way.
"My entire career, to be honest, wouldn't have shaped up the way it did if it wasn't for that very strong and solid foundation I got with Industrial Economics."
It's a foundation that has taken her from breaking barriers to helping shape the trajectory of her country's development. Underpinning it all is a way of thinking about economies focused on solving problems - and making them work better.
"There's always that economist thinking in the back of my head," she says, "allowing me to rationalise, weigh possibilities, identify solutions and make decisions accordingly."
"I really see economists as doctors. We're doctors for the economy - we always want the best outcomes."