Nelson Edelflides Carneiro
Verified Expert in Engineering
Software Developer
Ponta Grossa - Paraná, Brazil
Toptal member since March 15, 2019
As an accomplished computer engineer with 15 years of experience, Nelson has worked in multinational businesses (ExxonMobil, Automattic), governmental enterprises (Dataprev, a major federal IT company in Brazil), and American startups. He has also created all of the tools used in the regional ISP he founded, managing everything from customers to routers.
Portfolio
Experience
- JavaScript - 13 years
- MySQL - 10 years
- Angular - 8 years
- REST - 8 years
- Express.js - 6 years
- Node.js - 6 years
- NestJS - 5 years
- TypeScript - 5 years
Availability
Preferred Environment
Visual Studio Code (VS Code), Git, Windows, Linux, MacOS, Node.js, NestJS, Angular
The most amazing...
...project I've worked on was the authorization/authentication platform for all systems used in Brazilian Social Security Services, used by thousands of users.
Work Experience
Senior Full-stack Developer
Automattic
- Developed and deployed an automated onboarding tool that improved new user setup efficiency by around 40%, significantly reducing the time required for customer account setup from an average of 30 minutes to under 20 minutes.
- Optimized the async blog import system, increasing the success rate from around 60% to over 95% and enabling around 35% faster processing time for large data transfers.
- Implemented an image categorization tool used by designers to manually categorize and match images to website themes, enhancing categorization accuracy and reducing the use of these themes by final users by over 200%.
Co-founder
StatusNET
- Co-founded StatusNET, which is a regional ISP with hundreds of customers.
- Designed the network's logical and physical topology.
- Created the routers' scripts to do bandwidth and access control.
- Created the back-end system to manage and monitor the equipment and the customers.
- Integrated the billing system with the routers, reducing to Zero the number of unauthorized users using the service.
Systems Analyst
Dataprev
- Developed a Kanban tool, on spare time, that became the preferred tool for the whole department.
- Created a framework to make E2E tests in the authentication/authorization platform (LDAP, AD, and SQL).
- Supported SIBE, a system that processes the biggest payroll in Latin America, using Java, JSF, EJB, and JavaScript.
Co-founder
Status Sistemas
- Developed a virtual learning environment (VLE) used by thousands of students in undergraduate courses.
- Developed custom procurement solution for a private college, moving the workflow from paper to the web.
- Implemented and deployed load balanced internet access for thousands of students of a private college, using MikroTik.
Systems Analyst
ExxonMobil
- Structured a database reducing the time spent in safety reports' generation by 95%.
- Changed the team's development workflow to integrate asynchronous requests (AJAX) into the architecture.
- Implemented a real-time automatic error tracking in production applications.
- Mentored other employees regarding the use of JavaScript in the front-end.
Experience
Custom Radius Server
Lectured in Certificate Program
Home Automation
Education
Master of Business Administration Degree in Software Project Management
Pontifical Catholic University of Paraná - Curitiba, Brazil
Bachelor of Science Degree in Computer Engineering
State University of Ponta Grossa - Ponta Grossa, Brazil
Bachelor of Science Degree in Systems Analysis and Development
Federal Technologial University of Paraná - Ponta Grossa, Brazil
Skills
Libraries/APIs
Node.js, jQuery, Passport.js, React, Doctrine, Vue
Tools
Git, NGINX, Angular CLI, Gulp, NPM, Microsoft Visual Studio, MQTT, Mongoose
Languages
JavaScript, TypeScript, CSS, SQL, HTML, PHP, VB.NET, Bash, Java, C#, C, Less
Frameworks
Angular, NestJS, Express.js, AngularJS, Bootstrap, Laravel, JSON Web Tokens (JWT), Jasmine, Ionic, .NET, Knockout (Knockout.js), JSF, CodeIgniter
Paradigms
REST, Agile, Kanban
Platforms
Linux, Windows, Visual Studio Code (VS Code), Amazon Web Services (AWS), Oracle Database, Meteor, Arduino, MacOS
Storage
MySQL, SQLite, MongoDB, Microsoft SQL Server
Other
Full-stack, TypeORM, NodeMCU, MikroTik, LDAP, ESP8266
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