About the company
Based in São Paulo, Brazil, Allowme is a fintech security product that strengthens user authentication by analyzing device fingerprints at login — enabling clients to detect and prevent fraud in real time before it causes damage.
Responsibilities
Enhanced user authentication and security with Allowme, a product that collects user fingerprints during login attempts, improving fraud detection capabilities for clients.
Developed scalable backend systems to analyze login fraud probabilities, processing thousands of requests per minute using advanced security algorithms and fraud detection techniques.
Built a robust back-office platform enabling clients to review and take action on flagged fraudulent transactions, increasing response efficiency and reducing fraud-related losses.
Principal outcome
Designed and implemented a production-grade AWS architecture that gave the platform the scalability, security, and resilience needed to process fraud signals at speed. To deepen our cloud capabilities, I pursued and passed both the AWS Solutions Architect and Developer Associate certifications — a move that directly positioned Allowme for AWS partnership status, unlocking technical support, co-sell benefits, and industry credibility.
By applying AWS best practices across the full stack — from serverless Lambda functions for fraud analysis to Elasticsearch for event indexing — we built a system that was both cost-efficient and highly reliable. This technical foundation supported the company’s growth and reinforced its standing as a trusted, AWS-backed security solution.
Projects & Code Contributions
Discover the repositories highlighting the technical solutions and innovations I spearheaded during my time at Allowme.
Go Expect
The go-expect project was created to help our team to create beautiful assertions as if you were writing a text. When I've created this package, golang didn't have good libs for test assertions.Github
Auditd in Elastic Beanstalk
This repo contains a Elastic Beanstalk extensions configuration to install and configure auditd inside a Beanstalk instance for security purpose. Github