Christofer Bertonha_

Senior Software Engineer

Mission-driven backend developer with 10+ years of experience building scalable systems. Proficient in Python, Go, and Rust, with strong skills in cloud platforms, microservices, and API development.

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> About Me

I'm a mission-driven tech engineer in search of a challenge with high impact.

As a backend developer with over 10 years of experience, I specialize in building scalable and efficient systems. I'm proficient in server-side programming languages like Python, Go, and Rust, as well as database management and API development.

I'm skilled in cloud-based platforms like AWS and Google Cloud, with a strong understanding of microservices and containerization. I'm a collaborative team player with a demonstrated ability to work effectively with developers, project managers, and other stakeholders, and I hold a Bachelor's degree in Computer Engineering.

Christofer Bertonha

> Professional Experience

[ July 2023 - Present ]

Barcelona, Spain

Senior Backend Engineer

Preply

  • Contributing to the development and enhancement of Preply's web-based platform.
  • Collaborating with cross-functional teams to implement new features and optimize performance.
  • Maintaining platform stability, security, and scalability.
  • Innovating and improving the technology stack.
Python AWS GraphQL Django Kubernetes LLM A/B testing

Senior Backend Engineer

Typeform (VideoAsk)

As the lead backend developer, I was responsible for improving the scalability and reliability of the application. I containerized and migrated the application to AWS using Kubernetes, which resulted in improved deployment times.

  • Migrated the database from MySQL 5.7 to PostgreSQL 14, which led to better scalability and higher efficiency.
  • Split the monolithic application into a few micro-services to improve the application's modularity.
  • Added new features and ensured seamless integration.
  • Provided mentorship and guidance to junior developers, helping them overcome challenges and learn new technologies.
  • Actively participated in the hiring processes for over 20 developers, including conducting interviews and evaluating technical skills.
Python Django REST API Postgres Redis AWS

[ Nov 2019 - Jan 2023 ]

Barcelona, Spain

[ Jan 2019 - Nov 2019 ]

Barcelona, Spain

Senior Fullstack Engineer

Chartboost

Designed and developed a user-friendly dashboard that enables users to easily add game ads and customize their payment options based on specific characteristics such as location and device type.

Python Flask React JS AWS

Senior Fullstack Engineer

SendCloud

  • Developed a user-friendly rule engine that automated system actions based on generic triggers.
  • Developed plugins for webshops that enable customers to select their preferred delivery location on a map.
  • Developed an importer mechanism to efficiently import orders from the webshop.
  • Optimized the performance of PostgreSQL databases.
Python Django Vue.js Celery Docker AWS

[ Sep 2015 - Jan 2019 ]

Eindhoven, Netherlands

[ Oct 2013 - Aug 2015 ]

São Paulo, Brazil

Python Developer

Titans Group

  • Designed and implemented scalable backend solutions for a white-label cloud storage service serving 14 million users.
  • Contributed to the development of the main API for file synchronization, improving performance and reliability.
  • Contributed to the development of the user management & sales APIs.
Python Django Flask Celery REST API AWS Docker

Systems Analyst

Amdocs

Responsible for enhancing and maintaining the billing and revenue system for Brazilian telecommunications companies (Claro, Tim), managing their billing and revenue processes more efficiently.

Java EJB JSP XML C Oracle Unix

[ June 2012 - Oct 2013 ]

São Carlos, Brazil

> Technical Skills

Languages/

  • + Python
  • + Go
  • + Rust
  • + C/C++
  • + JS/TS

Frameworks/

  • + Django
  • + Flask
  • + FastAPI
  • + Celery
  • + React
  • + Vue.js

Platform/

  • + Containers
  • + Kubernetes
  • + CI/CD
  • + AWS
  • + Google Cloud
  • + Terraform

Databases/

  • + PostgreSQL
  • + MySQL
  • + MongoDB
  • + Redis

Scalability_&_Reliability/

  • + Event-Driven Systems (PubSub)
  • + Queue-Driven Systems (AMQP, Redis)
  • + Service-Driven Architecture
  • + Asynchronism

Other/

  • + Git
  • + Geolocation (PostGIS, Leaflet)
  • + Chart Drawing Tools
  • + Linux

> Languages

Portuguese: Native
English: Fluent
Spanish: Intermediate

> Education

2012 (Unfinished)

Master's, Computer Graphics

USP-São Carlos, Brazil

2007 - 2011

Bachelor's degree, Computer Engineering

Centro Universitário Central Paulista

Award: Honor Of The Best Computer Engineer Student