Felipe Teles

Senior Software Engineer

felipersteles@gmail.com

+55 (21) 95910-5391

linkedin.com/in/felipersteles

github.com/felipersteles

Senior Software Engineer with 5+ years of experience in end-to-end system design and development, specializing in scalable backend architecture and ML training. Proven track record of architecting microservices-based platforms and developing robust SaaS solutions that drive business growth. Strong full-stack development background with expertise in shipping high-performance, resilient features efficiently. Collaborative team player with experience in cross-functional and research environments, effectively aligning system architecture with business goals.

Professional Experience

Senior Software Engineer

Concredito Consignados | Rio Grande do Sul, Brazil

August 2025 - Present
  • Architected a microservices ecosystem by extracting bounded contexts from a legacy monolith using DDD techniques, supported by detailed Lucidchart and Mermaid diagrams for domain, flow, and service visualization.
  • Implementing APIs to communicate with banking services using Golang, RabbitMQ and PostgreSQL
  • Developing a new API to handle responses from banking services and standardize responses using NestJS and MongoDB
  • Deployment using CI/CD pipeline using GitHub Actions, AWS ECR, and Kubernetes, automating Docker image build, tagging, push, and deployment manifest updates to streamline production releases.
  • Encapsulating APIs with an observability system for real-time cost projection using Amazon S3 to store logs
  • Developing features in React.js web interface
Key Achievement

Implemented a comprehensive telemetry system for bank communication that increased system observability using Golang and AWS S3 that reduced troubleshooting time by 40%, resulting in a 30% increase in team efficiency.

Technologies:

Node.js Golang Microservices Lucidchart Mermaid RESTful APIs Message Queues Event-Driven Architecture PostgreSQL MSSQL System Architecture Cloud-Native Observability Fault Tolerance

Mid Level Software Engineer

ASV Digital | Rio de Janeiro, Brazil

January 2023 - September 2025
  • Creation of a dynamic forms SaaS from scratch using microservices and DDD using Lucidchart and Mermaid
  • Development of form creation system and response visualization in NestJS, Postgres as database and Redis for cache
  • Development of response receiving system using Golang with concurrency for sending webhooks through a queue system with RabbitMQ and data storage using MongoDB
  • Deployment using Docker, GitHub actions and EC2 to CI/CD
  • Using AWS for email sending and data storage (s3 and ses)
  • Development of control dashboards and interfaces using NextJS + React + Tailwind
  • Development of observability system at the Nginx level using Golang and Prometheus
Key Achievement

Architected and developed a complete SaaS platform from the ground up, replacing a third-party service and resulting in an 80% increase in company revenue by eliminating external licensing costs and creating a new revenue stream.

Technologies:

NestJS SpringBoot Lucidchart Mermaid PostgreSQL RESTful APIs Redis Agile Methodology

Notable Projects:

LightForms

Developed form management system with dynamic validation

Zappfy

Whatsapp API Whitelabel

AI Researcher

Applied Computer Group | Maranhão, Brazil

October 2020 - November 2025
  • Training neural network models applied to the healthcare field
  • Using image processing techniques to improve the quality of input images for machine learning models
  • Creating Python interfaces for configuring environments for training neural networks that use GPUs
  • Using text processing techniques to detect fake news in the university system traning a BERT modal using fine tunning

Technologies:

TensorFlow Computer Vision OpenCV Python C++ NLP Deep Learning Image Processing

Research Projects:

Segmentation with U-net++

Advanced image segmentation using nested U-net architecture

Natural Language Processing

Text analysis and language model development

Machine Learning in C++

High-performance ML implementations

Image Segmentation in C++

Efficient image processing library

Full-stack Intern

Tarken Ag | Minas Gerais, Brazil

December 2022 - March 2023
  • Developed full-stack applications for agricultural management systems
  • Built responsive front-end interfaces and efficient back-end APIs

Technologies:

NestJS PostgreSQL React Full-Stack Development

IT Security Specialist

Ribeiro Home Center | Maranhão, Brazil

June 2021 - September 2021
  • Implemented and maintained comprehensive network security infrastructure
  • Protected organizational data and systems from cyber threats

Technologies:

Firewall Configuration Network Security Threat Detection VPN Security Policies

Education

Computer Science Bachelor's Degree

Federal University of Maranhão | São Luís, Maranhão, Brazil | 2023

Computer Science Master's Degree

Federal University of Maranhão | São Luís, Maranhão, Brazil | In Progress

Publications

Improving Colorectal Cancer Diagnosis Using MIRNet and InceptionV3 on Histopathological Images

DOI: 10.1007/978-3-031-79035-5_22

Tooth Detection and Numbering in Panoramic Radiographs Using YOLOv8-Based Approach

DOI: 10.1007/978-3-031-60665-6_18

Atlas-Guided U-Net++ with EfficientNetB5 for Automatic Pancreas Segmentation in Abdominal CT Scans

DOI: 10.5753/sbcas.2025.6940

© 2025 Felipe Teles. All rights reserved.

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