Silas
Vasconcelos Cruz

Average Review

0.00

Reputation

Finished gigs

Finished jobs

Website

www.sv7analytics.com.br

Country

Not specified

Specialization

Backend Engineering, API Design, AI Integration, DevSecOps

Hourly rate

$85/hr

Preferred payment options

ETH

USDT

DAI

About me

Full Stack Software Engineer | DevSecOps | AI & Blockchain | Legacy Modernization I am a software engineer focused on innovation, automation, and security. Since 2016, I have worked in web and backend system development with an emphasis on scalability, robustness, and technological modernization. I have solid experience in enterprise systems architecture (Java EE, JSF, EJB), legacy application modernization, continuous integration (CI/CD), and automation with Docker, Ansible, and Kubernetes. My career path includes everything from supporting critical systems to deploying modern solutions with AI and Blockchain. Main Specializations Backend & Systems Architecture Development of robust APIs with Java EE (JPA, JSF, EJB), Python (Flask, Django), and Node.js, with experience in refactoring legacy systems (EAR, GlassFish). DevOps & Automation Creation of CI/CD pipelines with Git, Gitea Webhooks, Docker, Kubernetes, Terraform, and Ansible. Implementation of automated deployments, monitorin

https://www.linkedin.com/in/silas-v-053293255/

Work experience

HANDpdv

May 2022 – October 2022

Job title

Full Stack Java Programmer

Work experience & achievements

I worked as a Full Stack Java Developer at HANDpdv, a company specialized in software for retail and integration of issuing electronic invoices with SEFAZ. During my work, I worked on the development and improvement of web and mobile functionalities, ensuring the security, scalability and efficiency of the company's tax systems. Main Contributions and Impact Feature Development: Implemented new features for issuing NF-e and NFC-e, integrating with SEFAZ. Performance Optimization: Improved the efficiency of SQL queries and integration with Hibernate, reducing system response time. Security and Cryptography: I applied encryption and data security techniques to ensure the integrity of tax transactions. Integration and APIs: I worked with SOAP and REST WebServices, ensuring efficient communication between systems. Maintenance and Support: Resolved internal calls and made corrections and improvements to system stability. Technologies Used Front-End: XHTML, HTML, CSS, JSF (PrimeFaces), Jav

Education

Not specified

Silas Vasconcelos Cruz

(0)

Senior Backend Engineer | Python, Java, APIs, AI Integration, DevSecOps

Web, Mobile & Software Dev

Javascript

Python

$100

$100/hr

More info

LLM-MCP – AI-powered Natural Language Database Interface

An AI-powered backend system that allows users to query structured databases using natural language. Main features: - Python-based backend architecture - Integration with LLMs for natural language processing - SQLite database interaction and data querying - Clean API design and modular architecture - Focus on scalability, maintainability, and automation This project demonstrates the integration of AI models with real backend systems, combining data engineering, API design, and intelligent automation.

Enterprise Backend & Payment System (Java, APIs, Stripe, Webhooks)

Enterprise-grade backend platform designed for secure and scalable payment processing. Main features: - Java-based backend architecture with clean and modular design - REST APIs for order management, payments, and transaction lifecycle - Integration with Stripe using webhooks for real-time payment confirmation - Secure authentication and authorization (JWT-based) - Event-driven processing for payment status and ledger recording - Focus on reliability, security, and data consistency This project demonstrates strong experience in building financial-grade backend systems, API integrations with third-party providers, and robust payment workflows.

Government-Scale System Architecture (Java, CI/CD, Infrastructure)

Large-scale governmental system with complex domain logic, high availability requirements, and strict security standards. Main features: - Java enterprise backend with multi-module architecture - CI/CD pipelines for automated build, test, and deployment - Infrastructure automation and environment orchestration - Secure API integrations and data validation workflows - Logging, monitoring, and auditability for compliance - Support for high-volume transactions and long-term maintainability This project represents experience with mission-critical systems, demonstrating expertise in backend architecture, DevOps practices, and large-scale system reliability.

SilasVasconcelos Cruz