https://github.com/devjefster/devjefster
Config files for my GitHub profile.
https://github.com/devjefster/devjefster
config github-config
Last synced: 4 months ago
JSON representation
Config files for my GitHub profile.
- Host: GitHub
- URL: https://github.com/devjefster/devjefster
- Owner: devjefster
- Created: 2025-02-11T18:43:53.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2025-05-23T17:17:03.000Z (about 1 year ago)
- Last Synced: 2025-08-10T16:34:24.005Z (10 months ago)
- Topics: config, github-config
- Homepage: https://github.com/devjefster
- Size: 6.84 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Hi there! 👋 I'm Jefster Farlei Fernandes Caixeta Júnior
📍 Anápolis, GO, Brazil
📞 +55 62 99111-5292
✉️ jefsterfarlei@gmail.com
🔗 [LinkedIn](#) | 💻 [GitHub](#) | ✍️ [Medium](#)
## 🚀 About Me
Results-driven **Software Engineer** with **9+ years of experience** in designing scalable backend solutions using **Java (8-21), Spring Boot, and Golang**. My expertise includes **RESTful & GraphQL APIs, microservices architecture, and cloud computing (AWS, Azure)**. I have a strong background in **performance tuning, distributed systems, and high-availability architectures**.
Holds multiple industry-recognized certifications, including **AWS Certified Solutions Architect Associate, AWS Cloud Practitioner, Microsoft Azure Fundamentals (AZ-900), and Azure Data Fundamentals (DP-900)**.
## 🛠️ Technical Skills
### 🔹 Programming Languages & Frameworks
- **Java (8-21)**, Spring Boot, Hibernate
- **Golang** (Gin, GORM, Gorilla Mux)
- **Node.js, Python**
### ☁️ Cloud & DevOps
- **AWS** (EC2, S3, RDS)
- **Azure** (CosmosDB, Synapse, DevOps)
- **Kubernetes, Docker**
### 💾 Databases & Storage
- **PostgreSQL, MySQL, Redis, SQL Server, DynamoDB, CosmosDB**
### 🔗 APIs & Protocols
- **REST, GraphQL, WebSockets, OAuth2, JWT**
### ✅ Testing & CI/CD
- **JUnit, Mockito, TestContainers, SonarQube**
- **Jenkins, GitHub Actions**
### 📊 Monitoring & Logging
- **Prometheus, Grafana, Kibana, Azure Insights**
---
## 💼 Professional Experience
### **Software Engineer | Code17 Tek | 06/2023 - Present**
- Led backend development as a **Tech Specialist**, driving high-priority features & bug fixes.
- Designed & optimized **REST/GraphQL APIs**, improving system performance by **35%**.
- Developed high-performance APIs handling **1M+ daily transactions**, integrating **CosmosDB, Redis, and SQL Server**.
- Architected & deployed **Golang APIs**, leveraging **Gorilla Mux, Gin, and GORM** for cloud-native microservices.
- Refactored core services, **reducing technical debt by 50%** and improving maintainability.
- Enhanced system monitoring, implementing **Java Flight Recorder, JMeter, and Azure Insights**.
### **Software Engineer | Novacomp | 05/2022 - 06/2023**
- Developed **REST APIs**, reducing backend response times by **30%**.
- Reduced API error rates and improved **third-party integration efficiency**.
- Built a **Kafka-based notification service**, improving message delivery reliability to **99.9%**.
- Optimized data models, **cutting query execution time by 40%** with indexing improvements.
- Strengthened system observability using **Prometheus, Grafana, and Loki**.
### **Software Engineer | Midway | 05/2021 - 05/2022**
- Designed API endpoints, improving **data retrieval speeds by 40%**.
- Developed high-performance **data models**, handling **10M+ daily transactions**.
---
## 🎓 Education & Certifications
- **Graduate Certificate in Solutions Architecture** – PUC Minas, 2022
- **Associate Degree in Software Analysis & Development** – Maurício Nassau University, 2020
### 📜 Certifications:
- **AZ-900** (Azure Fundamentals)
- **DP-900** (Azure Data Fundamentals)
- **SFPC** (Scrum Foundation)
- **DEPC** (DevOps Essentials)
- **OWASP Top 10 Security**
---
## 🌎 Languages
- **Portuguese** – Native
- **English** – Advanced
- **Spanish** – Fluent
---
💡 **Let's connect and build something amazing together!** 🚀