Core Values Interview
Gustavo Saiani · Senior Software Engineer
Senior Front-End Engineer
Situation
- Complex application and legacy codebase
- Severe bug count, +1000 bugs
Task
Ship new features while improving code quality
Action
- Scope highest-priority refactors
- Implement TypeScript to avoid frequent but easily solvable bugs
- Work through RFCs to generate alignment with 20+ other front-end engineers
Result
- Continuous improvement of the codebase
- Decrease bug count over time by 40%
- Time to new version down by 50%
Senior Front-End Engineer
Situation
Keep 30k+ page, 45+ version documentation in sync with Github repo
Task
Define infrastructure and sync strategy
Action
- Fully separate documentation repo hosting
- Integrate user-side hosting to have both under same domain
- Build pipeline to integrate when a new merge to main branch happens
Result
- Infra good for twice the current docs size
- Fully automated
Engineering Manager · Senior Front-End Engineer
Situation
- Integration with Firebase (backend) had 0 automated tests
- Testing for Firebase had no documentation
Task
Create a strategy for testing and implement it
Action
- Reverse engineer Firebase where needed
- Gather available information on approaches and precedents
- Create testing framework and cover code
Result
- Regressions in the interface dropped by over 95%
- Onboarding engineers easier
Engineering Manager · Senior Front-End Engineer
Situation
Customers awaiting packages should track their deliveries live
Task
Create the package tracking app
Action
- Define architecture and overall approach
- Created application using React and Firebase, at the time tracking 250M deliveries per year
Result
- Spoke continues to be hypergrowth
- Now tracking over 1 billion deliveries per year
Engineering Manager · Front-End
Situation
- Talent Activation needed a fully new application after 10 years
- 250M ARR, people from 140 countries, many of which highly sensitive
Task
Lead Application Development
Action
- Build team
- Facilitate definition of tech stack
- Coordinate with stakeholders
- Deliver app
Result
- 30% less time to activate talent on average
- 30% more talents got jobs 1 month or less after activation
Founder
Situation
Start a PropTech focused on real estate ownership
Task
Build the company from zero to product-market fit
Action
- Create visual identity, MVP, hire Product and Eng teams
- Go to market
Result
- Raised R$100M after one year
- Continues to operate successfully
About Me
Remote Work · Routine · Why Now
Daily Routine
- Morning focused on deep work, afternoons for meetings and collaboration
- Consistent schedule to stay reliable across time zones
Best Environment
- Remote-first with async communication as default
- Autonomy with clear goals and ownership
Why This Change, Why Now
- Looking for a product-driven company where I can have long-term impact
- Excited about Trafilea's growth stage and e-commerce space
Flexibility
- Comfortable adjusting hours for team overlap
- Experience working across US, EU, and LATAM time zones