Cossi Achille Arouko is a Beninese entrepreneur and computer scientist. He is the founder and CEO of fintech startup Bujeti.
Bujeti is a finance control center for African businesses, offering an all-in-one platform for expense management, automated payments, multi-currency corporate cards, budgeting, invoicing, and bank connectivity, helping SMEs gain clarity and control over their finances.

His startup, Bujeti, is among the 94 companies that will participate in the Winter 2023 cohort of startup accelerator Y Combinator.

In 2018, the tech entrepreneur co-founded OyaPay, a fintech startup, where he served as the Chief Technology Officer. He also co-founded Skylar Labs, which helps SMEs build their cross-platform chatbots to engage clients.

He entered the professional world as a software development intern at Bénin Télécoms SA, in 2011 and 2012.  He also did a 7-month internship at AREVA NP, in 2014, where he worked in the development team of a mechanical calculation and piping software. In 2016, he completed an engineering internship in the research and development department of the digital studio Oyez in Paris.

He was a full-stack developer at the artificial intelligence startup Smartly AI. In 2019, he joined the Nigerian fintech company Paystack as a senior software engineer and in 2020, he became the tech lead.
With a background spanning fintech innovation and software engineering, A’chille is passionate about building modern tools that help African businesses operate smarter and grow sustainably.