About

Oleksii Trekhleb is a Senior Software Engineer at Uber, currently based in Amsterdam but originally from Ukraine. With over 13 years of experience in the field, he has created 50+ web projects, 2 startups, and 10 open-source projects. His most notable open-source contributions include the javascript-algorithms repository on GitHub, which has over 150k stars and is the most trending repository of the month, and the homemade-machine-learning repository on GitHub, which has over 17k stars and is the most trending repository of the day. He is also the creator of the learn-python repository on GitHub, which has over 7k stars and is the most trending Python repository of the day. Aside from his open-source contributions, Oleksii has also worked on various projects for companies such as Uber and EPAM Systems. At Uber, he started as a Software Engineer and was later promoted to Senior Software Engineer. At EPAM Systems, he worked as a Lead Software Engineer on projects such as ConstructConnect (iOS app) and Privalia (Spanish online fashion outlet), where he was responsible for leading Checkout and Basket related micro-service teams. Oleksii holds a Master's degree in Design and operation of electronic devices from Kharkiv National University of Radioelectronics, which he completed in 2007. He specializes in JavaScript/TypeScript (React), Python (for ML), and micro-services. His tech stack includes software engineering, JavaScript, Python, micro-services, TypeScript, ML, web development, iOS development, search, PHP, MySQL, Kafka, integration, UI, and React Native. Aside from his technical expertise, Oleksii is also a technical writer and has been featured five times on HackerNews' "Top 30" homepage with links to his projects. He is also the creator of allbible.info, which has over 100k monthly users. With his relevant experience of 15.53 years, Oleksii is a seasoned professional in the field of software engineering and is highly regarded for his technical expertise and contributions to the open-source community.