6+ years crafting high-performance web applications with React, Next.js, Node JS, Flutter, React Native, TypeScript and e-commerce. Specialized in technical leadership, system architecture, and team mentoring.
São Paulo, Brazil
I'm a Software Engineer specializing in frontend, mobile, and backend development, with a proven track record of building scalable, high-performance applications for companies ranging from startups to Fortune 500 enterprises.
My expertise spans the entire software development lifecycle, from ideation and architecture to delivery and continuous improvement. I've led teams through complex technical challenges, mentored developers at all levels, and consistently delivered solutions that exceed client expectations.
What sets me apart is my ability to combine deep technical expertise with strategic thinking and clear communication - whether I'm negotiating with C-level executives, collaborating with designers, or pair programming with junior developers.
Led multidisciplinary teams in agile environments, driving adoption of best practices like TDD, pair programming, and CI/CD.
Optimized critical paths reducing load times by 60%, improved Core Web Vitals, and sustained Black Friday traffic at scale.
Designed scalable solutions including design systems, micro frontends, and complex e-commerce platforms handling millions of users.
Worked with multicultural teams across Brazil, Spain, Bolivia, and Peru. Fluent in English and Spanish.
Technologies and practices I excel at
6+ years building production apps, component libraries, and mentoring teams
SSR/SSG, API routes, optimization, and complex architectures
Advanced types, generics, and large-scale TS codebases
Vue 3 Composition API, complex state management, and refactoring
White-label apps, feature flags, and native module integration
API development, middlewares, and backend integrations
Cross-platform mobile development with custom widgets
Enterprise systems, services, and deep refactoring
Led critical refactoring of Vue 3 modules and Symfony backend for Vivo's internal operations system. Worked with multicultural team (Brazil, Spain, Bolivia, Peru) in Spanish-speaking environment.
Reverse-engineered and rebuilt entire VTEX IO store from production without source code. Created design system from scratch, implemented advanced SEO, and achieved 100% indexability.
Key contributor in Americanas' massive e-commerce rebuild using VTEX FastStore v2. Decoded undocumented runtime, created internal documentation, and solved critical caching issues.
Refactored critical election coverage system on WordPress VIP. Unified dispersed modules, rebuilt editorial calendar, and improved performance under strict VIP guidelines.
Most impactful role: Became go-to expert for VTEX IO, performance optimization, and critical problem-solving. Led Black Friday operations, mentored team members, and delivered complex features for major brands (Pandora, Lacta, Ambev, Farmácia Indiana).
Worked on three major fronts: Next.js SSR/SEO for Riachuelo's affiliate platform, full-stack MVP for iFood's insurance system, and led mobile architecture for white-label product with feature flags and modular design.
Led frontend modernization, migrating legacy React class components to Hooks, implementing Redux for state management, and building real-time business dashboards.
Foundation of my real-world training. Worked on infrastructure, automation, web development, and internal platforms. Built systems like Habits ID (Raspberry Pi + RFID + React), intranet (SharePoint), and taught HTML/JS courses.
Beyond coding, I'm passionate about growing developers and building high-performing teams.
Throughout my career, I've mentored 20+ developers at all levels - from juniors taking their first steps to seniors navigating complex architectural decisions. I believe in leading by example, fostering psychological safety, and creating an environment where continuous learning is the norm.
Regular sessions helping developers level up through hands-on collaboration and knowledge sharing.
Thorough, constructive reviews that teach best practices while maintaining high code quality standards.
Involving team in architectural discussions, explaining trade-offs, and building consensus.
Creating clear documentation and internal guides that empower team autonomy and knowledge retention.
Championing TDD, CI/CD, clean code, design patterns, and continuous delivery across teams.
Providing constructive feedback, identifying growth opportunities, and supporting professional development.
I'm currently available for new opportunities. If you're looking for a Senior Software Developer who combines technical excellence with leadership and clear communication, let's talk.
srcaetite@gmail.com
+55 11 99951-0580
+55 11 99951-0580
/samuelcaetite
/osamucadev
São Paulo, Brazil