Neptali Castejón currently serves as a Programmer Analyst at MindDen, specializing in AdTech and digital advertising with a focus on JavaScript, GTM, and video ads. In this role, Neptali has been instrumental in optimizing ad libraries for over 30 digital media outlets, achieving a 15% improvement in cumulative layout shift (CLS) and enhancing overall user experience. Prior to MindDen, Neptali held a position as a Web Developer at Dedalus Group, where Neptali enhanced the usability of a web interface for medical staff across Spain. Neptali also has experience as a Graphic Designer at Smol. S.A, modernizing digital presence and developing responsive websites, and as a Web Designer at The Site Launch, focusing on mobile-first website design and SEO optimization. Neptali is pursuing a degree in Full-Stack Software Development at 4Geeks Academy España.
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