Clement Mihailescu

Co-Founder, CEO, and Instructor

Clement is an Ex-Google and Ex-Facebook Software Engineer who runs a YouTube channel with over 500K subscribers. After graduating with a degree in Mathematics from the University of Pennsylvania in May 2016, he decided to learn programming and to enroll in Fullstack Academy, an immersive coding bootcamp in New York City. While there, he fell in love with full-stack development and algorithm analysis. Upon completion of the program, he dove deeper into the field of algorithms and aced the Google interviews. The frustration that he felt during his interview prep led him to creating AlgoExpert. He used AlgoExpert to prepare for the Facebook interviews; unsurprisingly, he aced them!

Antoine Pourchet

Co-Founder and CTO

Antoine is an Ex-Uber Software Engineer. While pursuing his Bachelor's in Computer Science at Cornell University's College of Engineering, he enjoyed working as a teaching assistant in several courses, namely Computer Architecture and Machine Learning. Since his graduation in May 2016, he's been deepening his knowledge in distributed systems and has been actively working with Docker and Kubernetes. He was heavily involved in projects related to the scalability and infrastructure of Uber's backend systems and has been applying that experience to develop AlgoExpert's robust backend and infrastructure.

Simon Krafft

Principal Engineer

A lifelong friend of the Mihailescu brothers and Antoine, Simon graduated with a degree in Computer Engineering from McGill University in 2017. In 2018, he moved to Idaho to work as a full-stack engineer for Bodybuilding.com. During this time, he also worked part-time for AlgoExpert, writing solutions to coding questions in C++ and Java and doing some frontend work. He finally joined AlgoExpert full-time in late 2019, where he now implements the majority of the platform's front end on a never-ending quest to build the most delightful and performant user interface for AlgoExpert customers.

Alex Mihailescu

COO

Alex is Clement’s brother. After earning his Bachelor’s in Information Science at Cornell University in 2013, he moved to Idaho to work as a web developer for Bodybuilding.com. In 2016, an unexpected opportunity saw him switch careers and transition into the world of digital advertising, during which time he designed and built a multimillion-dollar programmatic ad stack for the business. He then went on to lead the fitness publisher’s ad operations team to new heights over the course of the next 3 years. In late 2019 he joined AlgoExpert full-time, where he now spearheads the company’s paid marketing efforts and oversees its financial operations.

Tim Ruscica

ProgrammingExpert Course Creator and Instructor

Tim is the lead engineer at a tech start-up ( Velocity) and an Ex-Microsoft Software Engineering Intern who runs a YouTube channel with over 1 million subscribers. Armed with a constant desire to figure out why and how things work the way they do, Tim started learning how to code at the age of 12 and immediately fell in love with it. His passion for teaching quickly led him to creating his YouTube channel, where he primarily focuses on programming tutorials, and in the past year, his exceptional teaching skills have helped millions of developers learn how to code and sharpen their programming skills. Tim met Clement while preparing for the Microsoft interviews with AlgoExpert, after reaching out to him about a collaboration on YouTube. He's now both an algorithms teacher here on AlgoExpert and the lead instructor for our one-of-a-kind learn-to-code products: ProgrammingExpert and BlockchainExpert.

Ryan Doan

MLExpert Course Creator and Instructor

Ryan is an Ex-Amazon Machine Learning Infrastructure Engineer, the VP of Technology at Semantic Health, and a true ML expert. After earning his degree in Computer & Electrical Engineering (with a focus on robotics and ML) from Virginia Tech in 2016, Ryan went on to apply his expertise across multiple industries, building ML models for trading firms, politicians, and even the NSA. He later found a home at Amazon, where he spent 5 years building ML models to improve the company's customer experience and designing ML systems to support its engineers and scientists. In late 2020, he joined forces with AlgoExpert, where he now trains ML engineers by sharing his deep industry experience and knowledge through our one-of-a-kind ML-interview-prep product: MLExpert.

Conner Ardman

FrontendExpert Course Creator and Instructor

Conner is an Ex-Facebook Software Engineer. He graduated magna cum laude with a degree in Informatics from the University of Washington, where he primarily took courses in computer science and user experience design. During his time at UW, he worked as the head teaching assistant for the computer science department's web development course, leading a staff of over 20 TAs and helping countless students learn the fundamentals of frontend engineering. After graduating, he went to Facebook, where he built out a variety of React-based frontend projects in its internal privacy organization. He joined AlgoExpert in late 2021, where he now shares his knowledge of frontend engineering through our one-of-a-kind frontend-interview-prep product: FrontendExpert.

Delia Lazarescu

InfraExpert Course Creator and Instructor

Delia is an Ex-Google Software Engineer and Cloud Technical Solutions Engineer. She graduated with double degrees in Computer Science and Business, primarily focusing on full-stack development during her four college internships. After graduating, Delia started her career at a consulting company, where she worked remotely as a full-stack engineer implementing cloud infrastructure, before transitioning to freelancing, where she managed her own clients. In 2020, she joined Google as a Cloud Technical Solutions Engineer, helping developers with their infrastructure, before switching to the Software Engineer role in 2021, working on network-reliability infrastructure as part of the Gmail team. Delia joined AlgoExpert in 2022, where she now shares her knowledge of infrastructure engineering through our one-of-a-kind infrastructure-interview-prep product: InfraExpert.

Josh Adams

iOSExpert Course Creator and Instructor

Josh is a software developer and technical writer. He taught himself Atari BASIC at age nine, coded recreationally through his years at Dartmouth College, where he majored in Anthropology, and worked in the software field for five years. He then practiced law for eight years before returning to the software industry in 2015 as an iOS developer. Josh has released four of his own iOS apps in his spare time and has worked professionally on iOS apps for San Francisco International Airport, Capital One, and Walmart. He joined AlgoExpert in early 2023, where he now shares his knowledge of iOS development through our one-of-a-kind iOS-interview-prep product: iOSExpert.