Senior Linux Systems Administrator

Hexa Consulting; Porto; Hybrid; EUR 60,000 - 85,000; Full time

Benefits offered by this job

Health insurance

Mental health support

Certification support

Work-life balance

Security training

Job summary

Hexa Consulting in Porto is seeking a Senior Linux Systems Administrator to support critical financial market infrastructure with a hybrid work model (3 days on-site per week). You will manage Linux servers, storage, VMware, and automation to ensure stability.

The role requires 5+ years in Linux admin, strong English (B2), and a collaborative, solution-focused mindset. You will collaborate with IT teams to align security, connectivity and compliance with business needs.

Qualifications

• 5+ years of Linux systems administration experience.
• English proficiency at least B2, both written and spoken.
• Strong organizational and time-management skills in complex environments.
• Collaborative, responsible and solution-oriented attitude.
• Willingness to work initially on-site in Porto, then hybrid.

Responsibilities

• Administer, configure, upgrade and troubleshoot Linux servers in standalone and clustered environments.
• Manage infrastructure changes through automation with traceability.
• Support storage servers, SAN switches and VMware environments, including maintenance.
• Collaborate with technical teams to analyze requirements, connectivity, security and compliance.
• Ensure availability, performance and security of Linux platforms supporting critical services.

Skills

Linux systems administration

English proficiency (B2)

Organization & time-management

Collaboration & teamwork

Troubleshooting & problem solving

Tools

VMware

SAN switches

Linux networking

Security compliance

Performance monitoring

Job description

We are looking for a Senior Linux Systems Administrator to support infrastructure operations in the financial market infrastructure sector. This opportunity is based in Porto, with a hybrid model (3x/week).

WHAT YOU WILL DO

• Administer, configure, upgrade and troubleshoot Linux servers in standalone and clustered environments.
• Manage infrastructure changes through automation practices, ensuring controlled and traceable server operations.
• Support storage servers, SAN switches and VMware environments, including troubleshooting and operational maintenance.
• Collaborate with technical teams to analyze business requirements, connectivity needs, security policies and compliance rules.
• Help ensure the availability, performance and security of Linux platforms supporting critical business services.

WHAT WE ARE LOOKING FOR

• At least 5 years of experience in Linux systems administration.
• Professional working proficiency in English, minimum B2 level, both written and spoken.
• Strong organization, prioritization and time-management skills in complex infrastructure environments.
• Collaborative, responsible and solution-oriented approach, with the ability to learn and apply new concepts quickly.
• Availability to work initially on-site in Porto, followed by a hybrid model with regular office presence.

TECHNICAL SKILLS

• VMware administration.
• Storage servers and SAN switches.
• Infrastructure services and networking topologies.
• Security policy implementation and compliance practices.
• Troubleshooting, performance analysis and operational optimization.

WHAT WE OFFER

• Private health insurance from day one, with no waiting period and optional family extension.
• Confidential mental health support, including psychological support, content and live sessions.
• Continuous learning and certification support throughout your journey.
• Practical support measures that promote balance between professional and personal life, whenever the role context allows.
• Opportunities to strengthen knowledge in information security, cybersecurity best practices and compliance-oriented infrastructure operations.

EQUAL OPPORTUNITY

Hexa is committed to inclusive and respectful recruitment practices, aligned with the principles of the Portuguese Diversity Charter. We value different backgrounds, experiences and perspectives, and promote equal opportunity throughout the hiring process.

HEXA LIFE

At Hexa, we are all Builders. You will join a collaborative environment based on honesty, mutual support and agility, where people are encouraged to contribute, evolve and help build solutions with quality, responsibility and shared purpose.