Eric Cirillo
This site is a portal to my career: full trajectory, the projects I built, and a resume available for download.
I have worked on Identity & Fraud implementation for more than six years. I started in Nubank fraud operations, moved into Professional Services at AllowMe, and became the technical reference at Serasa Experian for the most complex projects.
In July 2026 I took a step further. Serasa Studio, the platform I built to centralize testing and demos, made a gap clear to leadership: nobody was entering before the contract was signed to design, together with the client and pre-sales, a flow that actually fit the implementation. I was invited to take on that challenge, and today I am Serasa's pioneering Solutions Engineer, helping structure the role from scratch.
In recent years I started using generative AI to build my own tools. To me, technology was never the goal. It is what I use to solve the problem in front of me.
Read the full storySerasa Experian
Solutions EngineerI am Serasa Experian's pioneering Solutions Engineer. I join before the contract is signed to design the implementation flow with the client and pre-sales, standard or custom, bring the client journey to the Product Owner and build tools that make implementation easier. I visited an enterprise client in India, with all the work in English.
Serasa Experian
Fraud Analyst III, Professional ServicesTechnical reference for a client portfolio, from technical kickoff to production go live. I ran about 20 projects at once and English meetings with teams in the United States, India, and China.
AllowMe
Fraud Analyst II, Professional ServicesI learned to implement Identity & Fraud end to end with enterprise clients. I found an undocumented bug in FaceMatch right after launch, reproduced it, and took it to the product team, who confirmed the failure. (AllowMe was acquired by Serasa Experian.)
Nubank
Fraud Analyst II, I and Customer ExcellenceFinancial fraud operations at scale, with KYC, document fraud, and transaction monitoring. This is where I understood how fraud operations really work from the inside.
GF Casa Decor
Sales and customer serviceFirst professional experience, in sales and client relationships, before the turn toward technology and fraud.
What I have built
Tools I created for the Professional Services team at Serasa Experian, each born from a concrete day-to-day problem. Today they are gathered in the Serasa Studio Identity & Fraud platform.
- 01
Product Lab
The problem I was trying to solveTesting an anti-fraud product or debugging an integration depended on loose scripts, Postman collections and whoever knew how to use them. Every specialist had their own way and nothing was standardized.
The tool I builtA lab for Identity & Fraud products: pick the product, fill in only the relevant fields and run it, in Staging, Production or a fully simulated Demo mode for when there are no credentials.
React / Node.js / REST APIs - 02
Onboarding Builder
The problem I was trying to solveClients had to imagine what the integration would look like from slides and documentation. Putting together a real demo of the full journey took hours and required someone technical in the room.
The tool I builtAssembles the verification journey by dragging products into a sequence, runs the whole thing automatically and generates a PDF report. Works on the web and in app mode, inside a phone frame, with no APK to distribute.
React / @dnd-kit / jsPDF / web SDKs - 03
Flow Builder
The problem I was trying to solveOnboarding flows were drawn in generic tools that do not understand the domain. Every diagram started from scratch and did not speak the language of the products.
The tool I builtA flowchart editor built for anti-fraud: liveness, document forensics, biometrics and fraud decisions are native elements. Exports to PDF or PNG and became the pre-sales design tool.
React / PDF and PNG export - 04
Guides Hub
The problem I was trying to solveBefore the technical documentation, clients need to understand what each product is and how the pieces fit together. That content did not exist in accessible language, neither for people new to technology nor for technical people new to anti-fraud.
The tool I builtA client-facing knowledge portal: a hub and nine self-contained, bilingual guides chained into a path that goes from concepts (API and SDK, layered anti-fraud) to an applied case with flowcharts. Published on Serasa's Devs Portal.
Self-contained HTML / PT and EN - 05
Implementation Guide Generator
The problem I was trying to solveEvery implementation required writing the client guide by hand, pulling together documentation scattered across products and adapting it to the client's platform. Rework on every project and guides that drifted apart.
The tool I builtAn implementation guide generator: the team picks the products, the order and the client's platforms (web, Android, iOS, React Native, Flutter) and gets the step by step with troubleshooting, best practices and official links, exportable as a self-contained HTML file. Covers 14 products, in PT and EN.
Plain HTML, CSS and JavaScript, no build - 06
Knowledge Hub
The problem I was trying to solveProduct-specific behaviors lived only in specialists' heads. New team members took months to find their way around and the same lessons were rediscovered on every project.
The tool I builtA consolidated operational knowledge base, with best practices and details that are not in the official documentation, such as which of the images captured during Liveness works best for FaceMatch. It is the starting point for every new project.
Operational documentation
Recognized by leadership at the internal AI committee and approved for corporate publication.
KYC, Facial Biometrics, Liveness, FaceMatch, Device Intelligence, Document Forensics, OCR, Background Check, Fraud Score, LVS, among others.