I always liked to attend mostly to the complex demands that other people would not (or could not) supply. If you have a demand of this kind and need a robust out-of-the-box solution, I am the person you're looking for.
I develop Linux kernel code, networking services (client/server sockets), device drivers, parsers, advanced networking code, libraries and APIs, and small routines/scripts for file conversion, task automation, building, packaging, etc in C, C++, Shell Script (especially Bash), Python (scripting), Make/CMake/Autoconf, among other languages.
My experience as a developer is writing out-of-tree kernel drivers (2y), networking services & clients (sockets, 5y), firewalls (2y), middleware (1y), parsers (2y), CGI (3y), etc in C (+5y) and C++ (+5y) for Linux, BSDs, and other Unix-like systems. My experience comes mostly from a former company, SGI Sistemas, where I developed fiscal printing drivers, networking services, and middleware in C/C++, besides a Linux distribution to run the company's software on smaller and constrained hardware (mostly x86, some ARM), and for the company I founded, BeanWeb Solucoes, where I developed and maintained a libnetfilter_queue based firewall in C and a proxy server and a CGI web management interface in C++. Recently I have also developed some mainline Linux kernel patches.
I am also experienced in scripting solutions for system administration, packaging, maintenance, etc mostly on Linux environments (but capable of doing so for other systems).
My experiences with system administration revolve around web servers, proxy servers, firewalls, VPNs, mail servers, database servers, systems deployment, virtualization, IRC bouncers, etc. on Linux (+10y) and other Unix-like systems. I have deployed and maintained this wide range of services for small and medium businesses, especially agribusiness cooperatives in support companies and some varied clients as a freelancer.
My degree in administration allows me to understand your needs regarding what matters to you, your company, or your business.
My master's degree in linguistics and consequent research experience in language & cognition allows me to provide consulting services to support developers, researchers, and companies interested in natural language, human cognition, etc.
I also have soft skills such as regular communication, good listening, teamwork, working with diverse people and people with disabilities, leadership, etc.