Alef R.

Responsible for the development and maintenance of web applications leveraging React, TypeScript, NestJS, and PrimeReact specifically for logistics and risk management systems. Created backend modules and services adhering to NestJS's modular architecture, while also designing MongoDB databases utilizing Prisma ORM. Focused on integrating frontend and backend via REST APIs by both consuming and creating endpoints for essential system functionalities. Engaged in refactoring frontend pages to enhance maintainability and performance.

Involved in structuring servers through aaPanel, handling domain configurations, SSL/TLS certificates, and integrating Cloudflare. Developed custom scripts such as the VSL Viewer and optimized video players like Vturb, focusing on features including autoplay and pixel tracking. Worked on web page development with an emphasis on performance enhancements using PageSpeed and Lighthouse. Designed pre-VSL landing pages targeting mockups and headlines for A/B testing, making adjustments to layout and optimizing calls-to-action.

Designed and operated GPON (FTTH/FTTB) infrastructure projects utilizing FiberHome and Nokia OLTs for a wide customer base. Managed the implementation of wireless backhaul networks across 12 locations along 845 km of the BR-163 highway for CCR MSVia. Facilitated the deployment of the inaugural IX.CG (Internet Exchange Point) in Campo Grande, which effectively reduced latency and IP transit costs for local providers. Oversaw traffic routing through BGP and OSPF protocols while managing an assigned ASN. Handled the management of internal and external data centers ensuring availability with solutions like redundant links and UPS systems. Established and configured firewalls, VPNs, and IDS/IPS systems, ensuring robust security policies across edge infrastructure. Employed monitoring solutions via Zabbix, Grafana, and SmokePing, enhancing network availability while reducing MTTR. Administered Windows Server and Linux environments via VMware virtualization for critical systems. Led technical support teams across multiple levels, generating technical documentation and managing telecommunications projects. Took charge of the company's operational, commercial, and financial activities until its acquisition in 2024.