Jessica Guardezi · @jsibila
Jessica Guardezi
Quality and Operations leader in fintech. I build centres of operational excellence and write about what makes a process survive daily use, not the diagram.
The name
Sibila was my grandmother's name. It is my middle name, and it is the address of this site — sibi.la, the name split in two.
Read the story →From an environmental engineering lab to leading quality in fintech.
Research taught me method. Software engineering taught me systems. Operations taught me that neither one survives without people who agree on what good looks like.
- NowHead of Quality
AsapTech · Cards, Credit and Payments - NowMBA
Escola Politécnica da USP — Product & Service Engineering - 2026Product, Customer Solutions & Operations
AsapTech - 2025–26Management Team — regulatory programmes
Stellantis Financial Services Brazil - 2021–26Delivery Manager · Product Owner · Lead Software Engineer
Silicon Village - 2019–21Telecommunications Network Engineer
BYON · Bragança, Portugal - StartEnvironmental engineering & research
UTFPR · IPB · Universidad de Valladolid
Writing
- QualityQuality as prevention, not inspection. Coverage, automation, AI applied to test design — and the real cost of a bug that reaches production.
- OperationsProcess, governance and indicators. What happens after the flow leaves the slide and meets real volume.
- ProductPrioritisation, customer journey and onboarding. Saying no with a reason, and holding the decision afterwards.
- LeadershipMultidisciplinary teams, shared capacity and culture. Cutting the dependency on whoever happens to know everything.
- LifeEnvironmental engineering, Portugal, Spain, fintech. The turns, and the trade-offs behind them.
“Every bug that reaches production passed through a decision first. Quality is where that decision gets made on purpose.”