Daniel Fonseca Architect Engineer

Daniel Fonseca, I am a talented software Engineer with over five years of experience, specialized in creating scalable systems, modern architecture and agile development practices. My expertise spans a variety of technologies and frameworks, allowing me to work on bothfront-end and back-end application development. I have deep knowledge in Java (Spring), Go (Golang), Node.js (NestJS), Next.js, Vue.js, TypeScript, JavaScript, Tailwind, Bootstrap, CSS3, HTML5, PostgreSQL, Redis, MySQL, Amazon AWS.

Backend Development & Architecture

In backend development, I specialize in building high-performance, scalable APIs and microservices using modern technologies. My expertise includes Java with Spring Framework for enterprise applications, Go (Golang) for high-performance systems, and NestJS for structured Node.js applications. I design RESTful APIs, GraphQL endpoints, and implement asynchronous communication patterns using RabbitMQ, Google Pub/Sub, and AWS SQS/SNS.

I excel in database design and optimization, working with PostgreSQL, MySQL, Redis, and MongoDB. I implement caching strategies, connection pooling, and database sharding for high-traffic applications. My software architecture skills include applying SOLID principles, Clean Code practices, and design patterns to create maintainable and extensible codebases.

Cloud Infrastructure & DevOps

In cloud infrastructure, I have extensive experience with Amazon Web Services (AWS), designing and implementing scalable, fault-tolerant architectures. I work with EC2, ECS, Lambda, RDS, S3, CloudFormation, and EFS to build robust cloud-native applications. I implement Infrastructure as Code (IaC) using Terraform and CloudFormation, ensuring reproducible and version-controlled infrastructure.

My DevOps expertise includes containerization with Docker and orchestration with Kubernetes, CI/CD pipeline automation using tools like GitHub Actions, Jenkins, and AWS CodePipeline. I implement monitoring and logging solutions, load balancing strategies, and network security configurations including VPCs, security groups, and IAM policies.

I also have a strong background in databases and storage solutions, including PostgreSQL, Redis, MySQL, Amazon Aurora, and MinIO. I am skilled in designing and modeling efficient databases, ensuring proper data storage and retrieval for complex applications. My expertise extends to distributed caching and object storage for high-performance systems.

In the realm of DevOps and Cloud infrastructure, I have extensive experience with AWS services (S3, EC2, RDS, Lambda, ECS, CloudFormation, EFS), Terraform for Infrastructure as Code, Docker and Kubernetes for containerization, load balancing, networking (subnets, security groups), and Linux system administration. I also work with CI/CD pipelines and application monitoring.

I excel in software architecture and design patterns, applying SOLID principles and Clean Code practices. I create custom middlewares for authentication, logging, and validation, implement Magic Link authentication, and design parallel and concurrent systems for high performance. I also work with AI-powered intelligent systems, web scraping, and data automation.

In addition to my technical skills, I excel in supporting and mentoring junior developers. I am always willing to share my knowledge and help the team grow and develop. My experience includes working collaboratively, providing guidance, and resolving technical challenges. I have experience as a Tech Lead, supporting teams in technical decisions and quality standards.

Continuous improvement of front-end and back-end web systems is a crucial aspect of my work. I constantly seek opportunities to optimize and enhance performance, usability, and security in the applications I develop. I stay updated with industry best practices and trends, ensuring the systems I build align with the highest quality standards. Recently, I have been intensely dedicated to constant creation of new software using modern and scalable cloud technologies.

• Golang, Java
• Spring, NestJS, Gorm
• JavaScript / TypeScript
• HTML5, CSS3, Tailwind, Bootstrap
• Vue, Next, Angular
• Swagger, Postman, Rest, GraphQL
• RabbitMQ, Google Pub/Sub, SQS, SNS
• PostGreSQL, MySQL, Redis, OracleDB, MongoDB
• SOLID, Clean Code, Design Patterns
• AWS, Docker/Kubernetes, Terraform