Cesar User
@cesaruser1
Frontend software engineer combining technical leadership with business strategy.
What I'm looking for
I am a frontend software engineer with a business background and a proven record delivering high-performance applications across entertainment, healthcare, finance, streaming, and gaming industries.
I lead technical teams and architect cross-platform solutions, including OTT apps and internal platforms, focusing on performance, scalability, and excellent user experience.
Notable achievements include building a Disney internal platform, refactoring a medical supplies mobile app to reduce bundle size by 30%, and optimizing banking and ecommerce applications to improve load times and conversion.
I bring hands-on expertise in JavaScript, React, React Native, Next.js, and TypeScript, complemented by product-minded decision making and experience in business development and startup growth.
Experience
Work history, roles, and key accomplishments
Led frontend development for high-performance applications (Disney internal platform, DirecTV Go, CNN Plus), improving engagement by 20% and reducing load times while delivering cross-platform streaming solutions.
Full Stack Developer
Code Caravan
Oct 2019 - Feb 2021 (1 year 4 months)
Delivered 12+ websites, landing pages, and e-commerce solutions using responsive design and Agile practices, improving mobile conversion rates by 35% and managing end-to-end project delivery.
Business Development Manager
RevMob Mobile Ad Network
Sep 2013 - Oct 2018 (5 years 1 month)
Generated over $1M monthly in advertising budgets, established international partnerships, and consistently exceeded monthly sales targets by 100% through strategic client acquisition and CRM-driven relationship management.
Founder & Marketing Lead
Garoa Games Studio
May 2012 - Sep 2014 (2 years 4 months)
Founded a gaming startup, launched 4 mobile games with 100,000+ installs, built and led a 10-person team, and implemented user acquisition and monetization strategies achieving a 22% conversion to paid users.
Education
Degrees, certifications, and relevant coursework
Le Wagon
Bootcamp Certificate, Full Stack Web Development
2019 - 2019
Completed the Full Stack Coding Bootcamp focusing on web development technologies and practical project work.
Fundação Armando Alvares Penteado (FAAP)
Post-Graduation, Marketing Administration
2007 - 2008
Completed a post-graduate program in Marketing Administration covering marketing strategy and management topics.
Centro Universitário Ítalo-Brasileiro - Casper Líbero
Bachelor's Degree, Publicity
2003 - 2006
Earned a bachelor's degree in Publicity with coursework in advertising, marketing, and media communication.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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