Software Engineer focused onproduct engineering, performance,and scalable web & mobile platforms
I build robust systems with TypeScript, React, Next.js, React Native, Node.js, and GraphQL. From architecture to production, across international teams and products.
- users on the platform
- 800K+users on the platformDialog.ci
- operational cost cut
- 25%operational cost cutDialog.ci · Tech Lead
- faster release cycle
- 60%faster release cycleRelease automation
- students on the backend I built
- 50K+students on the backend I builtAUVP Investments
Core stack
- TypeScript
- JavaScript
- React
- Next.js
- Node.js
- NestJS
- GraphQL
- Ruby on Rails
- Golang
- Swift
- PostgreSQL
- MySQL
- MongoDB
- Tailwind CSS
- React Native
- Docker
- AWS
- Vercel
- GitHub Actions
- Claude Code
- MCP
One trajectory, no detours
Companies and teams I've contributed to
BEON.tech
Technology talent company that connects top Latin American engineers with U.S. tech companies.
Allocated to WellSite Navigator, the most trusted oilfield navigation app in the U.S. My focus is on modernizing and scaling the platform — web and mobile — with Next.js, React Native, Node.js, and GraphQL for thousands of daily users in the oil and gas industry.
Dialog.ci
Brazil's leading internal communication platform, serving 800K+ users at companies like PepsiCo, ArcelorMittal, and Casas Bahia.
Led the frontend architecture and the engineering team. Drove a full Next.js migration, reduced operational costs by 25%, mentored 3 developers to promotion, and automated app publishing to cut release time by 60%.
Developed and maintained features for the platform, which served over 800K users. Worked with cross-functional teams on solutions that improved user experience, leading to a 20-point NPS increase.
Supera Inovação em Tecnologia
Brazilian software consultancy that builds custom digital products for clients across industries.
Led development teams delivering solutions for multiple clients simultaneously. Created a component-driven workflow that reduced UI inconsistencies by 40% and mentored junior developers across projects.
Built platforms for a variety of clients, including car sales websites, lead generation systems, television platforms, and telemedicine applications. Full-stack work across mobile, backend, and frontend.
Brainship
Brazilian edtech platform for live online classes and course management.
Integrated PIX payments and credit card installments into the platform. Migrated the video conferencing system from Zoom to Jitsi, bringing that cost down to zero without affecting the user experience.
T13 Accounting
Accounting firm specialized in condominium management, based in Goiânia, Brazil.
Responsible for all technology decisions, digital presence, and ongoing platform maintenance.
Built the payment slip generation platform and redesigned the company's institutional website with a new visual identity.
Independent projects where engineering meets product thinking
AGCR
Built and deployed a Progressive Web App for the Goias Reining Horse Association (Associação Goiana do Cavalo de Rédeas). The app handles event management, competitor registration, and organizational workflows. I designed the architecture on AWS and later migrated it to a VPS, cutting costs significantly while keeping zero downtime.
Significant infrastructure cost reduction after AWS to VPS migration, with zero downtime throughout the process.
AUVP Investments
Designed and built the entire backend architecture for AUVP's investment education platform. The system now supports over 50,000 students, with seamless integration between backend and frontend.
Platform supporting 50,000+ active students with a scalable backend architecture.
O Portal
Client · SupernovaIntegrated the Hotmart API into O Portal, the course platform of Supernova, one of Brazil's leading digital marketing influencers. Also rebuilt the login flow for better security and user experience.
Hotmart API successfully integrated, with student satisfaction reaching 80%.
Feedback from colleagues and clients I've worked with
“He is an incredibly resourceful and deeply skilled developer, with a strong ability to understand complex systems and translate that understanding into practical, high-impact solutions. He consistently brings real value to the team by introducing better tools and workflows, streamlining processes, and actively taking ownership of challenging tasks.”
“What separates Zanderlan is his mastery of both hard and soft skills. Working with him is always a pleasure because he not only identifies problems quickly and offers effective solutions but also communicates his ideas clearly and empathetically. His ability to bridge the gap between technical know-how and human connectedness is what makes him such an asset to any team.”
“Zanderlan demonstrates a unique ability to solve challenges with agility without ever sacrificing excellence. His meticulous approach seeks not only to solve problems but also to understand the impact of those solutions on our greatest asset: the company's clients. His communication skills have always stood out as a remarkable differentiator within the teams.”
Experience
Over the past 8+ years, I've worked across the full stack, on web and mobile, from crafting pixel-precise interfaces to designing backend architectures that serve hundreds of thousands of users. My core tools are TypeScript, React, Next.js, React Native, Node.js, and GraphQL, but what drives my work is a product engineering mindset: building things that perform, scale, and genuinely solve problems.
I've led teams, mentored developers, reduced operational costs, and shipped web and mobile platforms across industries like enterprise communication, financial services, and event management. Based in Brazil, I work internationally with the same standard of clarity, discipline, and craft.
AI is part of how I work every day, not an experiment on the side. It has raised the quality of what I deliver and cut delivery time by more than 80%. That only holds because I give agents the same discipline I'd expect from any engineer on the team: instructions versioned in the repository, guardrails on what can be touched, context managed on purpose, and tests and review on everything that ships. The speed is real, and so is the fact that the code reaching production is code I own.
Through ColdFire Tech, I bring this experience to teams and products that need senior-level engineering with a product-first perspective.
- Full-Stack
- Engineering
- International
- Product Work
- Web & Mobile
- Platforms & Performance
- Team Lead
- Mentoring & Architecture
- AI-Assisted
- Delivery & Review
- Context Engineering
- Agents & Guardrails
Let's connect
I'm always interested in good conversations about product, engineering, and technology. If you have an idea, a project, or just want to exchange experiences, feel free to reach out.