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denis_cloud

DenisCS

@denis_cloud

IT Systems Specialist, Email Deliverability and DNS Authentication

Espanha
Inglês, Espanhol, Catalão
Algumas informações são exibidas no idioma inglês.
Sobre mim
Hi, I'm Denis, an IT and Systems Administrator specializing in email infrastructure, DNS configuration, and cloud platforms. I help businesses and entrepreneurs secure their email ecosystems, solve spam/bouncing issues, and implement proper authentication protocols (SPF, DKIM, DMARC) across Microsoft 365, Google Workspace, and major DNS providers like Cloudflare, GoDaddy, and Namecheap. Focused on fast turnarounds, reliable communication, and secure setups.... Saiba mais

Habilidades

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denis_cloud
DenisCS
offline • 

Conheça meus serviços

Gerenciamento de e-mails
I will fix email deliverability, spf, dkim, dmarc, and dns records
A partir deUS$ 15 /projetoMais detalhes

Experiência profissional

Enterprise_Technology

Systems Administrator - Microsoft 365

Enterprise Technology • Período integral

Aug 2025 - Present • 1 yr 2 mos

Autonomous administration of Microsoft 365, Entra ID, and Active Directory environments for 250+ users. Responsible for workstation lifecycle management, corporate network diagnostics (LAN/Wi-Fi/VPN), DNS configurations, and root cause analysis via system logs and SQL queries.

Council

Full Stack Developer

Council • Período integral

Oct 2022 - Jan 2023 • 3 mos

Developed a custom web application for municipal election management using HTML, CSS, JavaScript, PHP, and MySQL. Implemented core features for data handling, reporting, and secure database interactions, ensuring high performance and data integrity.