About Me

Hi, I am Hefler

Software Engineer - Backend Developer - Full Stack & Full Cycle - APIs, Microservices, Cloud (AWS, Node.js, TS/JS, Rust, React)

Software Engineer with hands-on experience, having worked on both broad and specialized stacks, making me a:

Software Engineer: 4+ years of experience working, collaborating, and managing teams and projects.
Full Cycle and Full Stack: Able to create applications end-to-end.
Back End Focused: Specialized in designing organized, scalable, high-performance, and highly available servers (APIs), distributed services (microservices), robust testing strategies (unit, integration), CI/CD pipelines, and resilient infrastructure (cloud, Unix).

Main Skills

Backend

100%

DevOps / Cloud

80%

Databases & Messaging

80%

Unit & Integration Tests

70%

Frontend

50%

Compliance & Security (HIPAA, Best Practices)

50%

Programming Skills

TypeScript / JavaScript

100%

Node.js / Express.js

100%

MongoDB

100%

Microservices

100%

Redis (BullMQ, RabbitMQ, etc.)

100%

Java

75%

SQL / MySQL

75%

React / Frontend

50%

Rust

50%

Ruby / Ruby on Rails

25%

Vue.js / Next.js

25%

Python

25%

HTML5 / CSS3

50%

DevOps Skills

Docker

100%

Kubernetes

50%

Linux / Unix SysAdmin

100%

Bash

100%

Nginx

50%

CI/CD (Jenkins, pipelines)

100%

DevOps Practices

100%

Other Skills

Git / GitHub / GitLab / Bitbucket

100%

AWS (EC2, S3, Lambda, IAM, RDS, DynamoDB, Aurora, CloudFormation, CloudWatch, Route 53, VPC)

90%

HIPAA (Compliance / Security)

50%

Back End Developer, Good Software Dev, Texas, United States

2022 — present

Planning, development, and maintenance of software and microservices, with a strong focus on TypeScript/JavaScript. Involved in the entire application lifecycle, from architecture to deployment and ongoing support. Experience in server management and leading project teams. Skilled in analyzing and optimizing system performance, including diagnosing and improving NoSQL databases, especially MongoDB.

Full Stack Developer, Fidelizou.me, Rio Grande do Sul, Brazil

2022 — 2022

Developed interfaces, troubleshot production code through AWS, worked on backend systems with Node.js and frontend using Vue.js. Mentored and supervised coworkers, reviewed pull requests, and updated legacy code.

Software Developer, Orulo, Brazil

2021 — 2022

Planned and developed user interfaces, conducted code reviews, and modernized legacy codebases to align with current development standards.

Auxiliary Electronic Technician, Konnel Tec, Brazil

2019 — 2020

Repaired defective electronic devices, managed logistics and inventory of components, and performed testing and diagnostics on circuit boards.

Auxiliary Process Analyst, Grupo Fallgatter, Cachoeirinha, Brazil

2018 — 2019

Monitored and improved production processes by collecting and analyzing data, and implementing optimized operational methods.

Bachelor's Degree, CNEC - Campanha Nacional de Escolas da Comunidade

2024 — 2026

Bachelor's degree in Computer Systems Analysis/Analyst.

Certificate, Microverse

2019 — 2020

Certification in Computer Software Engineering, with a focus on remote collaborative development and full-stack engineering.

Technical Degree, Escola Técnica José Cézar de Mesquita

2018 — 2020

Technical education in Automation Engineering Technology.