- Developed a new R&D department from scratch, implementing managerial skills. - Tackled technical and architectural challenges, including delivering 25 million email alerts and 250 million web push notifications per day. - Assumed managerial role without prior expertise in PHP and Go Lang. - Built a development team of 12 people through Agile methodologies. - Built a trusting relationship with team members, which improved performance and ensured timely delivery of projects, meeting expectations. - Achieved excellent results through collaboration and company support.