RSRicardo SilvaSystems & Network Administrator
ENPT
Ricardo Silva by the sea at sunset
Almada, Portugal

Hello! I'm Ricardo.

Systems & Network Administrator

I am a Systems & Network Administrator focused on the infrastructure that keeps organizations connected and operational: networks, identity, servers, endpoints, security and internal services.

Today I administer the LAN/WAN infrastructure connecting eight locations, together with identity, Windows and Linux servers, private cloud, security, endpoints and internal platforms.

I built my career from hands-on computer repair and user support, steadily earning broader responsibilities and growing into the Systems & Network Administrator I am today.

Career TimelineView ProjectsLinkedIn

Open to opportunities across Portugal and Europe

8 locations
multi-site infrastructure administration
2018 — present
professional IT progression
PT · EN
Portuguese and English

Career progression

From repair bench to infrastructure ownership.

From computer repair and technical support to ownership of multi-site infrastructure.

2018

2018 — 2021

2021 — 2022

2022 — Present

Administration and evolution of multi-site networks, identity, servers, private cloud, security and institutional platforms.

Selected responsibilities

  • Administer LAN/WAN infrastructure across 8 locations and deliver national and local network restructuring projects.
  • Manage Huawei and HP networking, VLANs, trunks, subnetting, Wi-Fi, Check Point firewall and NAT rules, VPN access and segmentation.
  • Administer Microsoft 365, Entra ID, Active Directory, users, groups, permissions and licensing.
  • Operate Windows and Linux servers, Proxmox VE, Hyper-V, Docker applications, endpoints, printing and NinjaOne.
  • Implement ticketing, documentation, monitoring, dashboards and digital-signage platforms.
  • Plan IT, networking and multimedia labs and contribute to public procurement, funded projects and supplier evaluation.

Technologies and domains

LAN / WANHuawei EnterpriseHP EnterpriseCheck PointMicrosoft 365Entra IDActive DirectoryWindows ServerLinuxProxmox VEHyper-VDockerNinjaOne
See the complete chronology in the CV

Selected evidence

Proof of ownership.

Professional work and practical building, presented with context and without overstating maturity.

Professional work

Multi-site infrastructure

Network restructuring, segmentation, identity, private cloud and internal platforms across eight locations—presented without exposing organizational infrastructure.

LAN / WANCheck PointEntra IDProxmoxMonitoring
Explore the infrastructure work
Feedback overview4.8
94%
4.8 / 5
Finished side project

FeedbackFlow

A local-first customer feedback platform with secure QR journeys, bilingual forms, role-based administration, alert workflows, exports and a Docker-ready operating model.

QR-based feedback journeysRole-based administrationAlerts and exportsDocker-ready operation
Read the product case study

Technical practice

Core systems and infrastructure skills.

The technologies from my CV, organized by the responsibilities they support in daily operations.

01
Networking
LAN/WAN administration, segmentation, secure remote access and enterprise wireless.
Huawei EnterpriseHP EnterpriseVLANsTrunksVPNCheck PointWi-FiSSIDs
02
Systems
Servers, identity, users, permissions, licensing and mixed endpoint environments.
Windows ServerLinuxMicrosoft 365Entra IDActive DirectorymacOS
03
Infrastructure
Virtualization, private cloud, centralized management and internal business platforms.
Proxmox VEHyper-VDockerNinjaOnePrintingMonitoring
04
Projects & procurement
Technical planning, documentation, evaluation and coordination with suppliers.
Lab planningDocumentationDashboardsACIN GovProposal analysisJury reports

Education

Networks and systems by training.

Formal training in networks and systems, strengthened by practical experience since 2018.

2016 — 2018
Higher Professional Technical Course in Computer Networks and Systems
Polytechnic Institute of Setúbal
Setúbal, Portugal
2019 — 2020
CCNA: Cisco Network Management Specialist
Rumos, Lisbon Training Center
Lisbon, Portugal
LanguagesPortuguese — native · English — C1
Technical interestsNetworking, homelab, Linux, cloud and open-source

About

Technical curiosity with operational discipline.

I enjoy the part of infrastructure work that is rarely visible when it is done well: clear standards, useful documentation, predictable access and systems that make sense to the next person.

Outside day-to-day operations, I spend time in the homelab, Linux and open-source ecosystems, and I use AI-assisted engineering as a practical way to prototype and validate tools. The decisions, trade-offs and accountability remain mine.

View LinkedIn profile Download CV Direct contact details are intentionally available only inside the downloadable CVs.