Toptal Blog

Originally a medical doctor, Bruno is now an experienced data scientist and machine learning (ML) engineer delivering advanced models for enterprise clients including PepsiCo and Microsoft. Most recently, Bruno worked as a senior ML engineer at Google. He is currently pursuing a PhD in computer science.

Menderes is a software developer with nearly three decades of experience. A Java specialist, he’s held senior engineering roles at global enterprises including Amazon and Yahoo, where he built and optimized key features and platform services. Menderes earned a master’s degree in business administration from Maltepe University.

Nicholas is a web developer specializing in custom WordPress plugin and theme creation. His clients include leading multinationals like John Deere and the Marriott Vacation Club, alongside a broad range of healthcare, fintech, and marketing ventures.

Jan is a fractional CFO and chartered accountant who helps startups and growth-stage companies strengthen their financial operations. With expertise in financial modeling, budgeting and forecasting, cash-flow management, and investor reporting, his work equips founders with the financial insight they need to make confident decisions as their businesses scale.

Antonia is a project management expert with more than 20 years experience across project management, Agile transformation, and organizational coaching. She has held senior roles at a number of enterprise organizations including McKinsey & Co, The New York Times, Yahoo, and IBM, guiding leaders and teams through change while embedding sustainable Agile practices. Antonia holds the Certified Scrum Professional and Project Management Professional certifications, alongside advanced credentials such as Enterprise Agile Coach.

Animesh is a corporate finance and investment consultant focused on helping organizations make sound financial decisions and deploy capital effectively. With experience spanning private equity investing and fractional CFO leadership, he has advised companies and investors across the US, UK, Middle East, and Asia on acquisitions and long-term growth strategies.

Nicolas Piro is a data scientist and AI engineer with more than 15 years of experience across e-commerce, healthcare, and industrial applications. He specializes in deep learning, large-scale model deployment, and applied research, with extensive hands-on work using PyTorch, TensorFlow, and modern compiler-based optimization tools.

Erdinc is a software engineer with 28 years of experience in backend, SQL, and Python development. He’s proficient in Go, ANSI C, and C++, with extensive work in microservices, APIs, cloud platforms, and distributed systems. His experience spans fintech, payments, cryptocurrencies, and AWS and GCP environments, and includes partnering with multinational companies such as Gartner, HSBC, and Sky TV.

Ranier is a senior developer with extensive experience building enterprise web and mobile applications using React and React Native. He has worked across a range of industries, including as a Unity 3D game developer building gameplay systems, content tools, and automation scripts. He has experience in AngularJS, the Google Maps API, and Flask back ends and currently works at AWS on React-focused development projects.