Security Administrator

Join inetum2 as a Windows System Administrator in Lisbon! In this critical role, you will be responsible for managing and maintaining Windows server environments, ensuring optimal performance and security. Collaborate with cross-functional teams to implement solutions that drive efficiency and reliability.

We are seeking a talented Windows Systems Administrator to join our dynamic team at Inetum in Lisbon. As a key member of our IT department, you will manage and support Windows-based systems, ensuring optimal performance and security.

We are seeking a talented and driven Windows Expert to join our dynamic team at inetum2. In this role, you will leverage your expertise in Windows systems to enhance our infrastructure and support our clients' IT needs effectively. The ideal candidate will be passionate about technology and have a strong problem-solving mindset.

We are seeking a talented and motivated Windows System Engineer N2 to join our dynamic team at Inetum. In this role, you will be responsible for managing, maintaining, and optimizing Windows server environments, ensuring high levels of performance and security.Your expertise will be integral to our infrastructure projects, supporting our clients in achieving their IT objectives.

As a Linux System Administrator at Inetum, you will play a crucial role in ensuring the availability, performance, and security of Linux server environments for our diverse clientele. You'll deliver operations, automation, and Level 2/3 support while participating in a rotating on-call duty to maintain service continuity.CONTEXTJoin a shared services team of five administrators dedicated to supporting multiple client environments in a multi-tenant architecture.Take responsibility for the operational availability, performance, and security of our Linux infrastructure across both on-premises and cloud platforms.Engage in a rotating on-call schedule to uphold service continuity as per contractual SLAs.Main Responsibilities:System Administration:Install, configure, and maintain Linux servers (such as Ubuntu, Debian, CentOS, RHEL).Perform regular patching, upgrades, and system hardening.Manage users, groups, permissions, and access policies effectively.Ensure system stability, performance, and carry out capacity planning.Shared Services and Platforms:Oversee shared services (e.g., DNS, NTP, SMTP relays, web servers, file servers).Provide support to application teams utilizing the shared Linux infrastructure.Maintain and optimize virtualization and/or container platforms (VMware, KVM, Docker, Kubernetes, based on the environment).Contribute to the standardization of environments and configurations across teams.Monitoring, Incident Management, and On-call:Configure and maintain monitoring and alerting tools (e.g., Zabbix, Prometheus, Nagios, Grafana).Investigate and resolve incidents affecting shared systems and services.Participate in a rotating on-call duty schedule (24/7 support):Respond to alerts within defined SLAs.Conduct first-level analysis, mitigation, and escalate issues as necessary.Communicate effectively with stakeholders during major incidents.Contribute to post-incident reviews (RCA) and ongoing improvement actions.Security and Compliance:Implement security best practices and hardening guidelines on Linux systems.Collaborate with security teams to identify, prioritize, and remediate vulnerabilities.Manage firewalls, VPN access, and ensure secure remote access (SSH, bastion/jump hosts).Ensure compliance with internal policies and external regulations when applicable.Backup, Recovery, and Continuity:Regularly test recovery and disaster scenarios.Assist in defining and meeting RPO/RTO targets for critical services.Automation and Industrialization:Utilize scripting languages (Bash, Python, etc.) to automate repetitive operational tasks.Employ configuration management tools (e.g., Ansible, Puppet, Chef, SaltStack) to maintain consistent environments.Contribute to infrastructure as code and standard operating procedures.

Join our dynamic team at inetum2 as a Unix System Administrator. In this role, you will be responsible for managing, maintaining, and optimizing our Unix-based systems. Your expertise will help ensure the reliability and efficiency of our IT infrastructure.We are looking for a proactive individual who can tackle challenges head-on and contribute to our growing technological landscape. If you are passionate about systems administration and thrive in a fast-paced environment, we want to hear from you!

Join our dynamic team at inetum2 as a Linux System Administrator! In this role, you will be responsible for managing and supporting our Linux-based systems, ensuring optimal performance and security. You will collaborate with cross-functional teams to design and implement solutions that meet our business needs.

Join our dynamic team at inetum2 as a System Administrator. In this role, you will be responsible for maintaining our IT infrastructure, ensuring system reliability, and providing exceptional support to our users. You will play a crucial part in system upgrades, security management, and troubleshooting issues to enhance operational efficiency.

Join our dynamic team at inetum2 as a System Administrator specializing in Unix systems. In this pivotal role, you will ensure the stability, integrity, and efficient operation of our Unix-based systems. Your expertise will be crucial in optimizing performance and implementing security measures while providing technical support to our users.

inetum2 is seeking a skilled System Administrator to join our dynamic team in Lisbon. In this role, you will be responsible for managing and maintaining our IT infrastructure, ensuring optimal performance, security, and availability. Your expertise will contribute to enhancing our systems and supporting various IT initiatives.

Role Overview inetum2 is looking for a ServiceNow System Administrator based in Lisbon. This role focuses on managing and optimizing the ServiceNow platform to keep daily operations running smoothly. The position involves supporting users and implementing improvements that help streamline business processes. What You Will Do Oversee the day-to-day performance of the ServiceNow system Support users with system issues and questions Implement enhancements and updates to improve workflows and processes

Join our dynamic team as a Backup Systems Administrator where you'll leverage your extensive expertise in administering Enterprise Backup platforms. We seek a self-driven and meticulous professional who thrives in large-scale corporate settings and is dedicated to ensuring the reliability, continuity, and security of our data protection systems.Key Responsibilities:Administer, install, and operate leading Enterprise Backup engines, including:Commvault, Veeam, NetBackup, and more.Optimize and manage centralized backup systems to enhance performance, plan capacity, and enforce proper retention policies.Implement enhancements, refine configurations, and ensure data integrity and accessibility.Diagnose intricate incidents and execute effective corrective measures.Support technology evolution initiatives and integrations with infrastructure platforms.Collaborate closely with multidisciplinary technical teams to ensure seamless continuity of data protection services.

Join our dynamic team at inetum2 as a Linux System Administrator. In this pivotal role, you will be responsible for the deployment, configuration, and maintenance of Linux servers, ensuring optimal performance and security. You will collaborate with cross-functional teams to troubleshoot and resolve issues, while also implementing best practices to enhance system reliability.

Join the Air Apps FamilyAt Air Apps, we are driven by a vision to innovate and excel. Founded in Lisbon in 2018, we are on a mission to revolutionize the way individuals and entrepreneurs manage their resources with our cutting-edge AI-powered Personal & Entrepreneurial Resource Planner (PRP). With over 100 million downloads globally, our self-funded company is expanding and looking for passionate individuals to join us in reshaping the future of work and life.We challenge the conventional and push the limits of AI technology to create impactful solutions. As part of our team, you will contribute creatively to products that empower users worldwide.Become a part of our transformative journey to redefine resource management.Your RoleAs a Systems Administrator, you will be pivotal in managing and safeguarding our corporate IT infrastructure and user access, ensuring a secure and efficient workplace. Your responsibilities will include overseeing device management, network security, access control, and providing IT support to our dedicated team.This position demands a robust technical background in IT systems, cloud tools, and security best practices to enhance and scale our internal operations.

Join Altersolutions as a Systems Administrator specializing in Microsoft Cloud and Intune Endpoint Management. In this role, you will play a critical part in managing and optimizing our cloud infrastructure, ensuring seamless operations for our clients. Your expertise in Microsoft technologies will help us deliver exceptional service and support.

About Speechify Speechify builds tools that remove reading barriers and help people learn in new ways. More than 50 million users depend on our text-to-speech products to turn everything from PDFs and books to Google Docs, news articles, and websites into audio. Our platform includes apps for iOS, Android, Mac, Chrome, and the web. We have received recognition from both Google (Chrome Extension of the Year) and Apple (2025 Design Award for Inclusivity), reflecting our focus on accessibility and thoughtful user experience. Our Team Speechify operates as a fully distributed company, with nearly 200 team members working remotely across the globe. Our group includes frontend and backend engineers, AI research scientists, and experienced professionals from Amazon, Microsoft, and Google, as well as alumni of Stanford and fast-moving startups like Stripe and Vercel.

Join Altersolutions as an IT Administrator in beautiful Lisbon, where you will play a vital role in managing and maintaining our IT infrastructure.You will be responsible for ensuring the smooth operation of our IT systems, troubleshooting technical issues, and supporting our team members in their daily technology needs.

Join our dynamic team as a Storage & SAN Administrator at Inetum, where you will leverage your extensive experience in managing, operating, and integrating Enterprise Storage solutions and SAN environments. We are seeking a proactive and detail-oriented individual skilled in supporting critical, large-scale infrastructures.Key Responsibilities:Oversee the management, installation, and operation of Storage systems (DELL, EMC, Fujitsu, Huawei) and SAN infrastructures (Brocade/Broadcom).Administer and configure Block Storage and NAS environments including CIFS, NFS, iSCSI, and S3.Integrate and provide support across various operating systems such as VMware, Windows Server, AIX, HP‑UX, Solaris, RHEL.Conduct performance analysis, troubleshooting, and optimization within Storage/SAN environments.Support cross-functional infrastructure projects and technology evolution initiatives.

Join our dynamic team at Inetum2 as a Storage Administrator, where you will play a vital role in managing and optimizing our storage solutions. We are seeking a proactive individual who can ensure the reliability, performance, and security of our storage infrastructure.