Daniel Bernardes
Staff Frontend Engineer @ V8 Digital
Rio de Janeiro, Brazil
About
Staff Frontend Engineer with 5 years of experience building scalable web products across fintech, SaaS, and client-facing environments. At V8 Digital, I lead a 3-person frontend team across about 7 fintech products serving about 30K users through B2B whitelabel systems. I own frontend architecture decisions, greenfield setups, legacy refactors, and a shared Design System of about 50 components that cut developer onboarding from about 2 weeks to 1 day and reduced frontend production bugs by about 90%. At Owlshard, I lead a 5-person frontend team delivering 2–3 client projects in parallel, cutting average delivery cycles from about 6 months to about 2 months. Previously at Avod Tech, I built high-performance React interfaces for a fintech product with about 20K users and automated daily data consolidation into BigQuery for the data team. At HOX.rs, I shipped and maintained about 6 client projects—including Dynamox (about 300 companies) and an Uber Flash campaign (about 50K users)—and drove a Redux Toolkit migration that improved delivery speed by about 40% on the main product. Strongest areas: Frontend Architecture, Design Systems, React, TypeScript, Next.js, Node.js, TanStack Query, TanStack Router, Vite, Chakra UI, performance, accessibility, and technical mentorship.
Experience
Staff Frontend Engineer leading frontend architecture and delivery for fintech products in a regulated, operationally demanding environment.
- Led frontend architecture across about 7 fintech products serving about 30K users through B2B whitelabel platforms, using React, TypeScript, and Next.js.
- Built and maintained a shared Design System of about 50 components that cut developer onboarding from about 2 weeks to 1 day and improved UI consistency across teams, using Chakra UI, React, and TypeScript.
- Led legacy frontend refactors to modern standards, reducing frontend production bugs by about 90% and increasing release predictability.
- Mentored a 3-person frontend team through code reviews, coding standards, and cross-project transitions, raising delivery quality across the portfolio.
- Owned greenfield project setup and delivery workflows with TanStack Query, TanStack Router, Vite, and Azure DevOps.
Staff Frontend Engineer leading frontend delivery for concurrent client engagements.
- Led a 5-person frontend team delivering 2–3 client projects in parallel with clearer estimation and planning.
- Designed scalable frontend architectures that cut average delivery cycles from about 6 months to about 2 months, using React, TypeScript, Next.js, and Vite.
- Translated Figma product and design requirements into maintainable frontend solutions for 2 concurrent client workstreams.
- Drove mentorship and troubleshooting practices that raised technical quality across a 5-person team over successive deliveries.
- Established collaborative delivery workflows with Azure DevOps and GitHub across overlapping client projects.
Senior Full Stack Developer focused on the frontend of a fintech product, with backend and data-platform work as needed by the roadmap.
- Built high-performance frontend interfaces for a fintech application serving about 20K users, using React, TypeScript, TanStack Query, and TanStack Router.
- Implemented API services and optimized service communication with AdonisJS and Node.js to support product delivery.
- Built daily consolidation of previously scattered backups and databases into a BigQuery data lake via Google Cloud Functions, enabling the data team’s pipelines.
- Shipped Figma-faithful UI in collaboration with product and design, using Vite across React and Vue.js surfaces as required.
- Replaced ad-hoc data handling with a daily automated pipeline, increasing reliability of analytics inputs for downstream data workflows.
Junior Frontend Developer delivering and maintaining multi-client frontend products in an agency model.
- Built and maintained day-to-day frontend features on Dynamox, a predictive maintenance platform serving about 300 companies, using React and TypeScript.
- Migrated the main Dynamox app to Redux Toolkit, improving developer experience and cutting delivery time by about 40%.
- Shipped an Uber Flash promotional microsite for a campaign reaching about 50K users, focused on performance and UX.
- Delivered about 6 client projects over the period (typically up to 2 in parallel), including landing pages and animated interfaces with Next.js, Tailwind CSS, and Material-UI.
- Added quality practices with Jest, Vitest, and Cypress to stabilize client releases across concurrent workstreams.