2010 — 2011
Render Multimídia
Online education and professional training.
Engineer · Builder · Berlin
Turning complex problems into useful things.
I'm Sérgio Vinícius, a software engineer and product-minded builder. I bring deep frontend expertise, a broad understanding of the stack, and a strong focus on performance, maintainability and user experience.
Languages
Portuguese · English · FrenchFluent in all three
Education
BSc Computer Science · UDESCMaster 1 studies · École nationale supérieure des mines de Saint-Étienne
Product engineeringPerformance & scalePeople & leadershipIdeas to real solutions
Build
learn
improve
repeat
learn
improve
repeat
Berlin, Germany
52.5200° N · 13.4050° E
52.5200° N · 13.4050° E
About me
I build digital products where engineering, product thinking and leadership meet.
I'm a software engineer and product-minded builder with 15+ years of experience turning complex problems into useful digital products. I bring deep frontend expertise, a broad understanding of the stack and a strong focus on performance, maintainability and user experience.
Across Brazil, France and Germany, I've worked in e-commerce, fintech, cybersecurity and decision-making platforms, contributing across the stack while increasingly taking on technical and people leadership.
Today, I'm especially interested in building strong teams, improving how we work, and using AI thoughtfully to automate routines, surface insights and help people deliver better software.
Away from the keyboard, I'm a husband, a father, and an enthusiastic volleyball player and cyclist.
Career journey
A path built on impact.
From Brazil to Berlin, I've worked across products, teams and technologies — always curious, always building.
Scroll sideways to explore
Selected experience
Professional work
A few highlights from the products and teams I've helped move forward.
Render Multimídia
🇧🇷E-commerce
Redesign of all pages, performance and SEO
Rebuilt the company's pages for a redesign, with a focus on frontend quality, web performance, SEO and a survey feature.
Fruition Sciences
🇫🇷Online decision-making tool
Tools for optimizing wine production
Built an irrigation calculator, replaced CSV templates with proper Excel templates improving customer experience, and introduced role-based access control.
Neogrid
🇧🇷E-auction & negotiations software
ezMarket
Joined the maintenance and enhancements team for ezMarket, helping reduce a 2,000+ bug backlog to around 30 over two years and introducing stronger engineering practices within one of the most mature Agile teams I have worked with. Later, built the award approval flow for its negotiations platform serving major European supermarket chains.
Infracommerce
🇧🇷E-commerce
Interfaces for global brands
Built frontend experiences for B2C, B2B and B2E commerce platforms, combining SEO improvements with scalable delivery across a 15+ developer team. Worked with brands including Carrefour, Ubisoft, Ray-Ban, JBL, Sunglass Hut, Oakley, Unilever and Vilanova. Contributed to Scrum adoption, process improvements and maintenance team coordination.
Raisin DS
🇩🇪Fintech
Online acquisition and web journey
Improved the public website and registration journey, introduced i18n from scratch, migrated the offers table from Angular to React, and maintained a Vue.js application. I also created an internal CLI to support Contentstack workflows. We ran A/B tests to optimize registration conversion, including a successful experiment that increased it by 40%.
Nord Security
🇩🇪Cybersecurity
NordVPN User Control Panel
After three years as a happy Nord customer, I joined the team behind the User Control Panel for NordVPN and other products. Before stepping into leadership, implemented a Cloudflare Worker layer, built critical experiences such as the plans pages and automated refund flows, and helped improve ways of working, team processes and the release flow. Today, my team owns recurring payments, subscriptions and refunds KPIs.
Personal experiments
Side projects
Small tools, real problems. Built to learn, explore and make life a bit easier.
Featured project
Travdraft
Compare trip ideas, visualize routes and choose the trip that is worth it.
Emergency Playbook
Work in progress
Berlin School Guide
A practical guide for families trying to understand school system in Germany and comparing primary schools in Berlin.
Better Habits
A habit challenge app for building streaks, staying accountable with friends and competing on leaderboards.
Family Schedule
Built to fairly split vacation stays between my parents’ and in-laws’ homes in Brazil. Track each night, adjust plans when needed and keep the balance visible.
Build useful things.
Keep learning.