abelbarbosa.com
I build, fix, and maintain the systems most people never see — but everyone depends on. From telecom platforms to cloud infrastructure to automated workflows, I make sure things actually work.
About Me
My approach to systems engineering is rooted in building robust, scalable, and operationally sound environments. I don't chase trends — I build things that work under pressure, stay documented, and don't break when it matters most.
I've spent years across server environments, PBX and VoIP platforms, cloud infrastructure, and workflow automation. The kind of work most people never see, but that businesses depend on every single day.
Professional Experience
Self-employed, Toronto
Hands-on work with PBX systems (FreePBX, Asterisk), SIP trunks, VoIP routing, call flows, and hosted server environments. Building and maintaining telecom infrastructure for real-world business operations.
Self-employed, Toronto
Designing connected environments that bring together Linux administration, containerization, reverse proxy routing, VPN configuration, and self-hosted tooling into cohesive operational systems.
Self-employed, Toronto
Building websites, automation workflows, and digital tools for small businesses. From intake forms to domain management to email infrastructure — end-to-end digital operations.
Portfolio
FreePBX and Asterisk-based PBX system with SIP trunking, IVR routing, and multi-domain support for business telecom operations.
Website-as-a-service platform for small businesses. Intake forms, asset uploads, project tracking, and automated delivery pipeline.
BIND DNS server with DKIM signing, Stalwart email server deployment, and multi-domain mail routing with full SPF/DKIM/DMARC.
Admin dashboard with CRM, submission tracking, file management, email settings, and real-time server monitoring built into one interface.
Multi-site VPN configurations, firewall rules, network segmentation, and routing setups for distributed server environments.
CRM system for managing domains, mail accounts, web projects, and client records across multiple hosted services.
For more projects and scripts, check out the abelbarbosa.ca personal site.
Technical Skills
Get in Touch
Whether it’s a telecom system, server infrastructure, or operational automation — if it needs to work reliably, I can help.