Security Engineer

Skills: Red Teaming · Ethical Hacking · Mobile Security · Application Security

Nubank

Lead Security Engineer

Senior Security Engineer

Security Engineer, working between software and security engineering
- Helped to build a few applications, like an oic/oauth2 compliant authn/authz server, internal security libraries and automated security scanners.
- Implemented automated security analysis on development cycle
- Web application pentesting
- Mobile application pentesting
- Red team missions

idwall

Architecture design and software development.
- API development with NodeJS (HapiJS and Express) using typescript and ES6
- API development with Spring 5 (Spring boot 2)
- Web crawling/scrapping with Java 8+
- Front-end development with Angular 2+
- Setting up and using services and components like Docker, Postgresql, mongo and redis

Senior Software Engineer

Telecom. company:
- Technical design of new functionalities of the company portal;
- End to end implementation of new features at the company's portal (including mobile site, backend and frontend development and service integration), using Java EE.

Accenture

Software Engineer

Stride is a in-game advertising platform.

I've helped the team mostly, but not exclusively, with the following:
- Technical architecture definition and implementation (AWS/GCP)
- Backend development with Java (netty), nodejs and ruby
- Desktop development using C/C++
- Reverse engineering

Stride Mídias Interativas

Software Engineer and Co-founder

Pontosec provides cloud security services for companies.

I've helped the team mostly, but not exclusively, with the following:
- General Web, Mobile and Cloud penetration testing
- Web development with node and rails
- Internal tools development with shell script, python and Ruby
- Hybrid mobile development

Pontosec

Security Engineer and Co-founder

Worked as consulting analyst with SAP - specifically with middleware and netweaver

Analyst

Consulting intern, supporting consultants in:
         - Debugging custom process
         - Technical and business definitions
         - Integration and security architecture implementation

Internship

Software development intern:
Had the opportunity to learn and work with several programming languages and technologies:
- Application development for smart card personalization. Using C/C++ for equipment APIs and driver customization.
- Support in application development for cargo tracking through RFID, using C# and C++.
- Mobile SIM card Application Development using SmartTrust WIB 1.3.
- Web Server Development using Php.

Guilherme L.