Senior System Administrator (M/F)

Banco Finantia, SA; Lisboa; Hybrid; EUR 45,000 - 70,000; Full time

Job summary

Banco Finantia in Lisboa is seeking a Senior System Administrator to manage vulnerability programs and strengthen security across ICT assets. You will analyze risk, prioritize remediations and coordinate across IT teams and external providers.

You will harden Windows Server and Linux environments, manage AD, SCCM/Intune and SIEM tools, while ensuring compliance with ISO 27001 and DORA. Fluency in English is required; Spanish knowledge is a plus.

Qualifications

• Degree in Computer Engineering or a related field.
• Minimum of 3 years of professional experience in vulnerability management and system administration.
• Experience with vulnerability management platforms, preferably Rapid7.
• Hands-on experience hardening Windows Server and Linux systems.
• Experience with Active Directory management, including Group Policies and Certification Authorities.
• Experience with SCCM and/or Intune.
• Knowledge of SIEM solutions, preferably IBM QRadar.
• Knowledge of IP networks and Microsoft SQL Server databases.
• Knowledge of ISO 27001 and DORA regulatory standards.
• Fluency in English; knowledge of Spanish is preferred.
• Strong analytical, organizational and prioritization skills.

Responsibilities

• Monitor and analyze vulnerabilities identified through Rapid7 and other sources.
• Assess the criticality, impact and urgency of identified vulnerabilities, setting remediation priorities by risk level.
• Coordinate and follow up on corrective measures with Systems, Networks and Applications teams and external providers.
• Hardening of Windows Server and Linux environments and continuous improvement of security baselines.
• Manage security controls across Active Directory, Group Policies, Certification Authorities, SCCM and Intune.
• Monitor remediation progress through to closure with clear documentation and traceability.
• Support ISO 27001 and DORA compliance through ongoing process improvements.

Skills

Vulnerability management

Windows Server

Linux

Active Directory

Group Policies

Certification Authorities

SCCM/Intune

SIEM (QRadar)

SQL Server

ISO 27001 / DORA

English fluency

Spanish knowledge

Analytical skills

Education

Degree in Computer Engineering or related field

Tools

Rapid7

SCCM

Intune

IBM QRadar

Active Directory tooling

SQL Server

Job description

Strengthen the security and resilience of the Bank’s technology environment

Vulnerability management is about much more than identifying technical weaknesses. It is about assessing risk, defining priorities and ensuring that corrective actions are effectively implemented and monitored through to resolution.

We are looking for a Senior System Administrator to take an active role in the integrated management of security vulnerabilities across the Bank’s ICT assets, helping to reduce operational and cybersecurity risk and ensure regulatory compliance.

You will combine strong systems administration expertise with an analytical and risk-based approach, working closely with multidisciplinary teams and external providers to strengthen security controls and promote continuous improvement.

Your impact

You will contribute directly to the security and resilience of the Bank’s technology environment through:

• The monitoring and analysis of vulnerabilities identified through Rapid7, penetration testing, security audits and other risk assessment sources;
• The assessment of the criticality, impact and urgency of identified vulnerabilities, setting remediation priorities in line with established risk levels;
• The implementation, coordination and follow-up of corrective measures with Systems, Networks and Applications teams, as well as external providers;
• The hardening of Windows Server and Linux environments and the continuous improvement of system security baselines;
• The management and enhancement of security controls across Active Directory, Group Policies, Certification Authorities, SCCM and Intune;
• The monitoring of remediation progress through to closure, ensuring clear documentation, traceability and effective risk reduction;
• The continuous improvement of vulnerability management processes, controls and reporting, supporting compliance with ISO 27001 and DORA requirements.

Perfil

• Degree in Computer Engineering or a related field;
• Minimum of 3 years of professional experience in similar roles;
• Experience with vulnerability management platforms, preferably Rapid7;
• Hands‑on experience in system hardening and vulnerability management;
• Experience in the administration of Windows Server and Linux systems;
• Experience in Active Directory management, including Group Policies and Certification Authorities;
• Experience with SCCM and/or Intune;
• Knowledge of SIEM solutions, preferably IBM QRadar;
• Knowledge of IP networks and Microsoft SQL Server databases;
• Knowledge of security frameworks and regulatory standards, including ISO 27001 and DORA;
• Fluency in English, both written and spoken;
• Knowledge of Spanish is preferred;
• Strong analytical, organizational and prioritization skills, with the ability to communicate effectively with multidisciplinary teams.

If you are looking for a role where systems administration, cybersecurity and operational resilience come together, this is an opportunity to contribute directly to the protection and continuous improvement of the Bank’s technology assets.

You will join a collaborative and demanding environment where technical expertise, risk awareness and effective coordination are essential to strengthening security and supporting the Bank’s regulatory commitments.