As a Back End Engineer, I excel in developing robust server-side logic with Go (GoLang), ensuring smooth integration with front-end systems. My skills include designing efficient database schemas, creating secure APIs, and implementing optimized server configurations. I actively collaborate with cross-functional teams and participate in rigorous code reviews to uphold high standards of code quality, aligning my efforts with the project's strategic goals. Committed to lifelong learning, I stay abreast of the latest industry practices, equipping me to solve complex technical challenges and drive the success of our web applications.

Initiated the PersyCoins project by leveraging Geth (Go Ethereum) on the Ethereum blockchain, aiming to create a bespoke cryptocurrency for our client's loyalty program. This phase focused on utilizing the JSON-RPC API of Geth, taking advantage of Go's efficiency and robustness to meet our client's requirements and ensure a seamless initial user experience.As the project progressed, it became clear that a paramount need for a permissioned blockchain environment was necessary due to some clients' need for transaction control. Decided to adopt Hyperledger Fabric due to its alignment with our requirement for a permissioned blockchain setup. By adopting Go for both chain code and client application development, was able to fully leverage Fabric's capabilities to tailor a secure and robust platform that met our client's specific needs.Deployed the refined blockchain infrastructure. This infrastructure, coupled with the use of Amazon Managed Blockchain for deploying Hyperledger Fabric, significantly enhanced system throughput and robustness, ensuring high availability and security for transaction data.Developed and integrated RESTful web services in Go, resulting in a 50% improvement in data processing and storage efficiency through the use of DynamoDB, and achieving a critical milestone with the issuance of 10,000 loyalty tokens, significantly boosting customer engagement and brand loyalty.A critical milestone was reached with the successful issuance of loyalty tokens to program participants, marking a significant achievement in customer engagement and brand loyalty enhancement. This innovative approach proved highly effective in maintaining customer interest and solidifying our client's market position.Successfully deployed a permissioned blockchain infrastructure on AWS, leveraging Amazon Managed Blockchain to enhance system throughput and robustness by 40%, ensuring high availability and security for transaction data.

Key Project #1: TechAgua (Water Billing and financial control system)Led a team of 5 back-end engineers, serving as a technical lead and scrum master. Our collective expertise was instrumental in transitioning a legacy system into the modern landscape. The original system, deeply rooted in C# web services and reliant on SQL Server and PostgreSQL databases within the Microsoft Azure Cloud environment, underwent a transformative migration.Re-architected the system into a new, efficient codebase, transitioning from C# to Go for core functionalities while integrating with a NoSQL DynamoDB database, and shifted hosting to Amazon AWS. This strategic move was designed to leverage the scalability and flexibility offered by AWS and C#, ensuring a robust infrastructure that could meet evolving business needs.This comprehensive approach not only revitalized the client's digital infrastructure but also underscored the versatility and power of C# in creating secure, efficient, and scalable web services. Through this project, we demonstrated the seamless integration of C# with modern technologies and platforms, highlighting its enduring relevance and adaptability in the fast-evolving tech landscape. In our pursuit of enhancing security and performance, we meticulously designed and developed new APIs. These were constructed with C# to adhere to stringent security best practices, incorporating JWT authentication for secure communication. Furthermore, we optimized the deployment of these APIs through lambda functions and Docker containers, aiming for seamless integration and scalability.Skills: Go(Golang), Amazon AWS, C#, REST API, Bash, NoSQL databases (DynamoDB),SQL, Postgres, Docker containers.

## NFS-e Project*Led back-end development for the NFS-e project using Go, AWS, and NoSQL.* Managed the transition from C# to Go, resulting in improved performance and concurrency.* Orchestrated data migration from PostgreSQL to AWS DynamoDB for improved scalability.* Wrote efficient Go code for invoice generation and tax calculation processes.* Utilized AWS services like Lambda, S3, EC2, and RDS for optimal deployment and performance.* Developed secure back-end with RESTful APIs for transactions and queries.* Embraced agile methods for rapid improvements and development.

# Role: Information Technology Infrastructure Specialist## Key Responsibilities:- Proactively monitor, troubleshoot, and ensure optimal performance of network systems, servers, and IT infrastructure components.- Perform routine maintenance, including software patches, firmware updates, and security configurations, to maintain secure, up-to-date systems.- Plan and execute infrastructure upgrades for enhanced performance and scalability.- Collaborate with IT teams in infrastructure planning, design, and evaluation of new technologies.- Maintain comprehensive documentation of infrastructure configurations, procedures, and troubleshooting guides, and generate performance and incident reports for analysis and decision-making.- Prioritize security and compliance, keeping updated on best practices, regulations, and compliance standards.- Manage incident responses, root cause investigations, and corrective actions to minimize downtime.- Engage in continuous learning, staying abreast of emerging technologies and industry trends.## Key Skills:- Linux System Administration- Infrastructure as code (IaC)- Unix Administration- Shell Scripting- Disk Management- Network Administration