Ann Kinyanjui, a Kenyan finance professional works as finance manager at Amazon in Seattle, where she helps evaluate investments, assess business performance and guide decisions across the United States, Canada and Mexico. Her journey reflects how financial expertise can shape major business decisions.
When a company is deciding which products deserve investment, the question is not simply how much money is available. It is whether the opportunity makes commercial sense, what risks are involved and what return the business can reasonably expect. These are among the questions Ann Kinyanjui works through in her role at Amazon.
The Kenyan finance manager is part of Amazon’s Devices division, which includes products such as Fire TV and smart speakers. Her responsibilities extend across the US, Canada and Mexico, covering approximately 12 devices and requiring her to work with business teams on investment decisions and long-term planning.
It is a significant responsibility for a professional who began her career in Kenya’s corporate sector before pursuing an MBA in the United States.
Kinyanjui studied at Strathmore University and qualified as a Certified Public Accountant in Kenya. She spent about six years at Hallmark Advertising & Marketing, progressing through finance roles before becoming head of finance. That experience took her beyond accounting and reporting into budgeting, forecasting and evaluating business opportunities.
She enrolled at Cornell University’s Johnson Graduate School of Management in August 2023, seeking broader exposure to strategy and global business. An application for an Amazon internship eventually changed the direction of her career. According to Business Daily, she was the only student selected for Amazon’s finance programme from her MBA class of 283. The internship led to a full-time finance manager offer in August 2025.
What makes her work particularly relevant is the distinction between reporting financial results and helping decide what happens next. Kinyanjui assesses investment proposals, examines costs and risks, and contributes to annual and three-year strategic planning. Her work involves questioning assumptions before money is committed, rather than simply explaining expenditure after the fact.
She has also had to establish credibility in a role where some colleagues have more years of experience. Her approach, as reported by Business Daily, has been to listen, respect the knowledge others bring and build trust through consistent decisions.
That approach connects with one of Amazon’s leadership principles, “Have Backbone; Disagree and Commit.” Employees are encouraged to challenge decisions respectfully, explain their reasoning and support the agreed direction once a decision has been made. For Kinyanjui, the principle creates room for people at different levels to contribute their perspectives.
Technology is changing the work, too. Kinyanjui uses artificial intelligence tools to help review expenditure requests, examine contract details and handle parts of financial reporting. But automation does not remove the need for financial judgement. A request may fit within an approved budget and still fail to make business sense. Determining whether an investment is worthwhile remains a human responsibility.
Her career offers a useful lesson for African professionals looking to move into international leadership. Qualifications matter, but so does learning how a business operates, understanding the commercial implications of financial decisions and being prepared to question proposals constructively.
Kinyanjui’s story also challenges the idea that finance is confined to spreadsheets and historical records. At the right level, it helps determine where a business places its bets.
For young professionals across the African diaspora, her journey is a reminder that expertise developed at home can provide a foundation for global opportunities. The next step is learning how to use that expertise to influence decisions that shape what a business does next.
