GT
Resume

Frontend precision.
Commerce outcomes at scale.

I design and ship high-conversion e-commerce experiences with frontend precision, performance focus, and clean architecture.

Senior engineer with 7+ years building scalable web products across high-traffic commerce environments. Strong in React, Next.js, Node.js, performance optimization, and delivery quality with testing.

Let's Build TogetherDownload Resume
GitHubLinkedInEmail

Senior Fullstack Software Engineer • Erechim, Brazil

Portrait of Gustavo Tartas

7+ years

Hands-on product engineering

5M+

Daily users supported in fashion e-commerce

600+

Physical stores connected in omnichannel flows

Core Web Vitals

Continuous monitoring and optimization

Highlighted work

Selected impact across enterprise commerce products

Dimension-based purchase calculator

Created guided room-size logic for carpet selection with data-driven recommendations.

Improved product customization usability and reduced friction in checkout decisions.

Homepage video support rollout

Enabled mixed media carousels for one of the most visited pages in U.S. e-commerce.

Increased campaign flexibility and user engagement for marketing initiatives.

Remote payment links

Built secure anonymous checkout links for distributed sales teams across Brazil.

Expanded remote sales capacity with faster conversion outside physical stores.

Cyberattack recovery support at Renner (2021)

Worked directly on the project during the incident, supporting frontend stabilization and prioritizing critical deliveries for a safe recovery.

Helped restore operational stability and keep the digital experience running under high pressure.

End-to-end frontend leadership (2023-2024)

Acted as one of the frontend leads throughout the full project lifecycle, from technical direction at kickoff to final delivery.

Sustained architectural consistency, delivery predictability, and release quality across the squad.

Legacy-to-modern stack migrations

Strong experience refactoring and transitioning legacy systems, including migrations from jQuery to React and from Java to Node.js with a BFF layer.

Reduced maintenance complexity and enabled faster product evolution with modern frontend and backend patterns.

Performance optimization and rendering efficiency

Led performance refactors using memoization, useCallback, code splitting, and rendering review to improve runtime efficiency.

Improved LCP, reduced CLS, and delivered faster, more stable user experiences.

Peer feedback

Recommendations from teammates, leaders, and hiring partners

All recommendations in this section are also available on my LinkedIn profile. LinkedIn

Innovative, dedicated, and collaborative. Gustavo consistently delivered customer-facing React features with high quality and strong engineering rigor.

TB

Tyler Butler

Software Engineer 2 at The Home Depot

Worked with me on the same team

Gustavo showed up every day ready to contribute. He produced not only solid software but also technical guidance when challenges came up.

MK

Mike Kerfeld

Sr. Product Manager at The Home Depot

Partnered cross-functionally with me

He was lightning fast onboarding into complex tasks and helped improve quality and delivery speed while increasing team capacity.

HL

Haile Lakew

Senior Software Engineer

Worked with me on the same team

Working with Gustavo was a pleasure. He communicates clearly, learns quickly, and provides valuable input in technical decision-making.

GG

George Guffey

Senior Software Engineer at The Home Depot

Worked with me on the same team

Throughout the process, Gustavo showed commitment, professionalism, and strong frontend ownership with a consistent growth mindset.

GP

Grazielli Padilha Vieira

Tech Recruiter | Talent Acquisition

Hired me for a major project

A dedicated professional, always willing to support colleagues and share knowledge. His quality standard stood out on every delivery.

JM

Junior Maran

Frontend Software Engineer

Worked with me on the same team

Gustavo demonstrates proactivity, adaptability, and teamwork. He communicates effectively and keeps evolving with every challenge.

MB

Mateus Badalotti

Senior Software Engineer

Collaborated in multiple projects

Education

Academic foundation in Computer Science

5 years

Bachelor of Computer Science

URI Erechim University

URI Erechim is the same university where beecrowd (formerly URI Online Judge) was created.

This academic path strengthened my software engineering fundamentals, algorithmic thinking, and problem-solving discipline.

AI mindset

Automation-first approach with AI

I am an AI enthusiast and I am always looking for ways to automate as much as possible to increase team performance.

I use AI in day-to-day engineering workflows to speed up delivery while preserving quality and reliability.

View IACancer on GitHub

2022

IACancer

A skin cancer detector project that demonstrates practical AI application in a real healthcare-oriented problem.

Production problem-solving

Fast troubleshooting and reliable incident response

I am highly effective at finding and fixing problems quickly, especially when production incidents require rapid and accurate troubleshooting.

  • I investigate end-to-end with urgency while preserving technical quality.
  • I move from symptom to root cause fast and unblock teams under pressure.
  • I convert incidents into preventive improvements to reduce recurrence.

Team dynamics

Responsibility, communication, and growth mindset

Responsibility and clear communication are core to how I work with teams and stakeholders.

  • I keep ownership from discovery to delivery and make risks explicit early.
  • I work with growth mindset, positive attitude, and steady collaboration.
  • I communicate status, trade-offs, and next steps clearly in high-impact contexts.

Career timeline

Experience shaping high-traffic products

Senior Fullstack Software Engineer

Home Depot

Oct 2024 - Present

United States (Remote)

Driving continuous improvements in a large-scale e-commerce platform with focus on architecture, frontend quality, and measurable performance.

  • Built and improved critical product page flows for quantity, color, and configuration personalization.
  • Delivered a dimension calculator for room-based recommendations to optimize purchase decisions.
  • Shipped homepage upgrades including video support inside carousels for richer campaigns.
  • Monitored and optimized Core Web Vitals through New Relic, with focus on LCP and responsiveness.
  • Contributed to testing strategy with Jest and supported architectural decisions in a senior team.
ReactTailwind CSSGraphQLNode.jsExpressJestGCPNew Relic

Senior Fullstack Software Engineer

Aggrandize

Feb 2023 - Oct 2024

Brazil

Led development of a nationwide commerce platform for Frigelar, enabling complete sales lifecycle and operational scalability.

  • Designed and implemented end-to-end cart workflows with product, service, discount, branch, and payment orchestration.
  • Integrated multiple payment methods including PIX, cards, cash, and internal credit.
  • Built remote payment links to support device-independent checkout for external customers.
  • Delivered customer onboarding for CPF/CNPJ profiles with role-based access controls.
  • Mentored junior engineers and guided architectural standards and frontend quality.
React.jsNext.jsRedux-SagaBootstrapNode.jsExpressWebSocketReact Testing Library

Fullstack Software Engineer

Aggrandize

Jun 2021 - Feb 2023

Brazil

Worked on Brazil's largest fashion e-commerce modernization, bridging legacy architecture and modern React/Next.js delivery.

  • Developed smartphone-camera product recognition to connect users to matching product pages.
  • Implemented nearest-store locator with stock availability for omnichannel shopping.
  • Led phased migration from JSP to React with overnight launches to reduce revenue risk.
  • Maintained legacy and modern stacks simultaneously while improving responsiveness and reliability.
React.jsNext.jsNode.jsExpressMobXJavaJSPJest

Fullstack Software Engineer

Meta Brazil

Sept 2020 - Jun 2021

Brazil

Contributed to fleet monitoring delivery and launched a new commerce platform from scratch.

  • Implemented final product stages for TicketLog monitoring with React/Next.js and data visualization.
  • Built BFF and frontend modules for Britania e-commerce in a fullstack role.
ReactNext.jsNode.jsExpressMobXRecharts

Frontend Software Engineer

Compass UOL

Nov 2018 - Sept 2020

Brazil

Owned frontend delivery for Camicado list experiences, including creation and payment journeys.

  • Delivered wedding and event list creation flows focused on conversion and usability.
  • Maintained and evolved guest payment interfaces as the primary frontend engineer in the squad.
Vue.jsjQueryE-commerce UX

Toolkit

Frontend-first stack with fullstack depth

Frontend

ReactNext.jsTypeScriptJavaScriptTailwind CSSStyled-ComponentsMaterial UI

State & Architecture

Redux-SagaMobXContext APIZustandClean Architecture

Backend & APIs

Node.jsExpressREST APIsGraphQLWebSocketJavaNest.jsFastApi

Quality & AI

JestReact Testing LibraryGitHub CopilotOpenAI APIsMCPCI/CD Optimization

Languages

  • Portuguese (Native)
  • English (Highly proficient)
  • Spanish (Working knowledge)

Open to opportunities

Let's build products users remember

Available for senior frontend and fullstack opportunities focused on product impact, performance, and scalable architecture.

WhatsAppguga.m@hotmail.com+55 54 9 9246 0762LinkedIn ProfileGitHub Portfolio