Last updated: 2025-07-24
5 It Systems Administration jobs in Lisbon.
Cloudflare
At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world's largest networks that powers millions of websites…
Lisbon
- Skills: Network Engineering, BGP, OSI model, Scripting, Documentation, Automation, Technical Operation, Network Monitoring, Customer Support, Team Collaboration
- Level: mid
- Type: full_time
Alter Solutions
Alter Solutions Portugal is an IT Consultancy Company, promoter of Digital Transformation, part of the Alter Solutions Group, created in 2006, in Paris. In 202…
Lisbon
- Skills: IT Administrator, system enhancements, technical testing, application support, Linux, Windows Servers, scripting languages, Confluence, JIRA, TCP/IP
- Level: senior
- Type: full_time
Devoteam
At Devoteam, we believe that technology with strong human values can actively drive change for the better. Discover how Tech for People unlocks the future, cre…
Lisbon
- Skills: Linux, system administration, virtualization, networking, scripting, automation, security, compliance, technical documentation, cloud
- Level: mid
- Type: full_time
PowerTalent
PowerTalent stands out for its customized talent solutions. As specialists in recruitment and selection, we streamline complex processes and find the best prof…
Cascais
- Skills: network security, Cisco switching, routing, firewalls, WiFi, NAC, Windows servers, Linux servers, Azure, VPN
- Level: mid
- Type: full_time
Unit4
Meet Unit4. We’re a fast-paced growth cloud company, changing the game in ERP for mid-market people-centric organizations. We’re on a mission to turn 40 years …
Lisbon
- Skills: Azure, IaaS, PaaS, Active Directory, Group Policies, DNS, DHCP, network infrastructure, Windows systems engineering, virtualization
- Level: mid
- Type: full_time
Devoteam
At Devoteam, we believe that technology with strong human values can actively drive change for the better. Discover how Tech for People unlocks the future, cre…
Lisbon
- Skills: network infrastructure, network management, network security, firewalls, VPNs, network protocols, cloud technologies, troubleshooting, network monitoring, collaboration
- Level: mid
- Type: full_time
Solvay
Solvay, a pioneering chemical company with a legacy rooted in founder Ernest Solvay's pivotal innovations, is dedicated to delivering essential solutions globa…
Lisbon
- Skills: VoIP, telecommunication systems, Cisco Unified Communications, Avaya, Microsoft Teams, system configurations, troubleshooting, security measures, cloud solutions, operational performance
- Level: mid
- Type: full_time
Capgemini Engineering
At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’…
Lisbon
- Skills: Telecommunications, Packet Core, Network Security, Cloud Infrastructure, Telecom Systems Architecture, Telecom Network Protocols, Bash, Python, 5GC, SQL
- Level: mid
- Type: temporary
Cloudflare
At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites…
Lisbon
- Skills: cybersecurity, threat analysis, TCP/IP, network protocols, information security, security principles, Linux, scripting, database systems, incident response
- Level: mid
- Type: full_time
Capgemini Engineering
At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’…
Lisbon
- Skills: network solutions, operational effectiveness, network monitoring, troubleshooting, low level design documentation, DDoS Solutions, IDS, IPS, network implementation, firewall technology
- Level: mid
- Type: full_time
VINCI
VINCI is responsible for managing 10 airports in mainland Portugal and is focused on innovation and efficiency to provide unique experiences and quality servic…
Lisbon
- Skills: Systems Administration, Virtualization, VMware, Microsoft Hyper-V, Scripting, Automation, Cloud environments, Security policies, Documentation, Agile methodologies
- Level: mid
- Type: full_time
Capgemini Engineering
At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’…
Lisbon
- Skills: Microsoft Azure, Citrix, Virtualization, Scripting, Automation, Active Directory, Microsoft Operating Systems, IT Infrastructure, System Administration, Compliance
- Level: mid
- Type: full_time
Solvay
Solvay, a pioneering chemical company with a legacy rooted in founder Ernest Solvay's pivotal innovations in the soda ash process, is dedicated to delivering e…
Lisbon
- Skills: cloud, hosting, Azure, virtualization, AWS, security, automation, performance, monitoring, collaboration
- Level: mid
- Type: full_time
Cloudflare
At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites…
Lisbon
- Skills: Network Security, DDoS Mitigation, Web Application Firewall, Packet Inspection, BGP Routing, TCP, UDP, Traffic Signatures, Command Line Tools, Scripting Languages
- Level: mid
- Type: full_time
T-Systems
At T-Systems, you will find groundbreaking projects that contribute to social and ecological well-being. We want to welcome new talents like you, who bring fre…
Lisbon
- Skills: network security, network hardware, troubleshooting, advanced network architecture, network performance, Cisco, firewalls, VPN, network design, communication skills
- Level: mid
- Type: full_time
Veeam
Veeam, the #1 global market leader in data resilience, believes businesses should control all their data whenever and wherever they need it. Veeam provides dat…
Lisbon
- Skills: PowerShell, Git, Virtualization, VMware, Hyper-V, KVM, Linux, Windows, automation, network protocols
- Level: mid
- Type: full_time