Herllon Cardoso

Porto, Portugal / Rio de Janeiro, Brazil· +55 24 98843 3576 / +351 910 323 142 · cardoso.herllon@gmail.com

I have experience in developing web applications in the back-end and front-end, engaged to create well-architected services and achieving the best user experience interfaces. My main skills are related to creating maintainable web applications following good software engineerings practices like Clean Code, Clean Architecture, and Automated Tests. Also, have experience in the DevOps area focused on Cloud Computing with Amazon Web Services.


Experience

Backend Software Engineer

Volkswagen Financial Services

Volkswagen Financial Services is a business division of the Volkswagen AG group of companies and comprise VWFS AG along with its associated companies. VWFS is the largest provider of automotive financial services worldwide.

Main technologies: NodeJS, NestJS, OracleDB, AWS, Datadog, Typescript, Redis, Javascript.

September 2022 - Present

Backend Software Developer

Opens Technology

Opens create customized solutions for companies to have a service that wins and retains customers. A complete platform for the team to create relationships with your customers.

  • Create and maintain backend services
  • Develop services following the premisses of Event-driven architecture.
  • Work together with the frontend team in order to get better results
  • Architect, create, and keep a service to monitor any anomaly found in any queue in the entire ecosystem

Main technologies: Project architecture, documentation and project definition, Javascript, NodeJS, RabbitMQ, PostgreSQL, Sequelize, TypeORM, Typescript, ElasticSearch, Redis.

May 2022 - September 2022

Full-Stack Software Architect and Developer

Gyan

A digital transformation company that uses technology to integrate and innovate customer experience service with many integrations like Whatsapp, Telegram, Text messages, and IVR.

  • Architected the entire system with the customer and business requirements.
  • Created a backend, and frontend from scratch.
  • Digital Ocean as cloud provider.

Main technologies: Javascript, NodeJS, NestJS, React, PostgreSQL, TypeORM, DigitalOcean.

June 2022 - September 2022

Full Stack Software Engineer

VOLL Mobility

VOLL is a complete solution for business travel and corporate mobility. Designed to simplify processes, reduce costs and make traveling and commuting easy for your team and managers, from booking to payment.

As a Software Engineer, we develop and maintain resilient, scalable, and high availability microservices in an event-driven architecture for the corporate travel business, doing some integrations with flights, hotels, and uber gateways.

Within the team, we are responsible for deploying microservices in production and monitoring, in case of a problem using the AWS platform and New Relic alerts. I also contributed to the front-end team creating and fixing interfaces with ReactJS and Flutter focused on mobile apps.

Main technologies: NodeJS, Python, Apache Kafka, REST, GraphQL, Apollo, PostgreSQL, MySQL, MongoDB, ReactJS, Flutter, Amazon Web Services, New Relic.

December 2020 - September 2022

Full-Stack Software Developer

Gyan

Gyan is a platform that connects freelancers with consumers to awesome projects, and they can trade offers.

  • Create and maintain the backend and frontend
  • Integration with payment gateways
  • Deployment and monitoring of the applications on the AWS environment.
  • Mentor the juniors in order to get better results in our delivery.

Main technologies: Microservices, NodeJS, Express, ElasticSearch, Kibana, Logstash, Redis, PostgreSQL, SocketIO, Amazon Web Services, ReactJS.

June 2021 - May 2022

IT System Analysts

Alfa Laval Aalborg

Create and maintain the internal system in order to help and automate the company processes.

Main technologies: NodeJS, React, ReactNative, Flutter, C#, PostgreSQL, MS-SQLServer.

October 2019 - November 2020

Service Desk

Orange Business Services

As a global IT and communications services provider, Orange Business Services helps companies collaborate more effectively, operate more efficiently and engage better with their customers – connecting their people, sites, and machines securely and reliably.

September 2017 - January 2019

Technical Support in Networks and Telecommunications

Tech Cable
September 2016 - August 2017

Education

Unicesumar

B-Tech of Software Analysis and Development
August 2020 - Present

University Catholic of Petropolis

Bachelor of Computer engineering
August 2016 - August 2019

Hamlet Language School

English Certification
August 2008 - December 2013

The App Brewery

Flutter Development using Dart
April 2020 - Remote

Balta.io

Logic programming with Dart
April 2020 - Remote

Google Grasshopper

JavaScript Fundamentals
April 2020 - Remote

Cisco

CiberSecurity Fundamentals
April 2020 - Remote

Skills

Programming Languages & Tools
Languages
  • Portuguese - Native
  • English - Advanced
  • Spanish - Basic

Interests

Apart from being a technology professional, I enjoy most of my time being outdoors. In the summer, I always go to the beach with family and friends. During the winter, I enjoy longboard downhill and free mountain climbing.

When forced indoors, I follow several horror and actions genre movies television shows, I am an amateur gamer that wants to play every release on the market.