Leszek A. is a Software Engineer at PayPal. They is proficient in rosyjski, francuski and angielski. Colleagues describe them as "I had the incredible privilege of working with Leszek for 4 years. He is an outstanding engineer, thorough in his approach to research, design, development, and documentation. He knows when to act with speed and urgency, and when time and deliberation is called for. He picks up new technical concepts, languages, frameworks, and libraries incredibly quickly. He is thoughtful, consideration, and empathetic in his interactions with teammates and coworkers. Overall Leszek is extraordinary as a person and engineer and I would jump at any chance to work with him again." and "I have had the privilege of working with Leszek for two years at PayPal/Braintree. Leszek has been an integral part of our strategic initiatives, demonstrating unparalleled expertise and commitment to delivering high-quality solutions. His deep technical knowledge, particularly in Ruby, Rails, AWS, Kubernetes, Jenkins, and CI pipelines, has been invaluable to our team's success. Leszek stands out not only for his technical skills but also for his collaborative nature. He is always willing to assist his peers, often dedicating time for pairing sessions to troubleshoot complex issues or brainstorm solutions. His PR reviews are exemplary—thorough, insightful, and always focused on elevating the team's code quality. Additionally, Leszek has a meticulous approach to documentation, ensuring that processes and systems are well-documented and easily understood by everyone. Beyond his technical skills, Leszek's ability to foster a culture of learning and improvement has had a lasting impact on our team. His proactive mindset and unwavering support for his colleagues make him a joy to work with. I wholeheartedly recommend Leszek for any endeavor he pursues. He will undoubtedly be a tremendous asset to any organization."