Montréal [Hybrid] - Senior Linux Systems Administrator

QUANTEAM - North America (RAINBOW PARTNERS Group); Montreal (administrative region); On-site; CAD 100,000 - 150,000; Full time

Job summary

QUANTEAM - North America, part of the RAINBOW PARTNERS Group, seeks a Senior Linux Systems Administrator for a Montreal-based investment bank client. You will join an agile team delivering Unix operations, automation initiatives, and enterprise ITIL-aligned processes while supporting 2,500+ servers.

You will leverage strong Python, scripting, and automation skills, contribute to API-driven operations, and work closely with cross-continental teams to ensure reliable infrastructure delivery and

Qualifications

• Advanced expertise in Linux Server Operating Systems (RHEL), lifecycle, hardening, performance tuning.
• Strong troubleshooting at kernel, process, memory, and I/O levels.
• Experience with monitoring/observability tools (Zabbix, Prometheus).
• Development and scripting with Python, Bash; Ansible, Puppet for automation.
• Production-grade automation, API integrations, and tooling.
• Knowledge of LVM, multipathing and filesystem tuning (XFS/ext4).
• Experience with hybrid cloud architectures, provisioning, integration.
• Proficiency with IdM/LDAP authentication workflows.
• Knowledge of enterprise hardware (HP/DELL x86) and firmware/RAID.
• TCP/IP and services (LDAP, DHCP, DNS, NFS, SMTP); RCA & incident management.

Responsibilities

• Deliver Unix operational support and infrastructure projects.
• Handle client requests and incidents with transparency and accountability.
• Participate in Follow-the-Sun support across Europe and Asia.
• Automate repetitive tasks and improve team efficiency.
• Collaborate on enterprise automation initiatives with multiple feature teams.
• Manage activities per ITIL (Change, Incident/Request Management).
• Onboard team routines and participate in monthly overtime operations.
• Coordinate with Bangalore Level 1 support to optimize service delivery.
• Contribute to API design/development to automate IT operations (Python).
• Support a large-scale environment with 2,500+ servers.

Skills

Linux sysadmin

Kernel/IO troubleshooting

Scripting: Python/Bash

Automation & API integrations

ITIL processes

LVM/multipathing

IdM/LDAP auth

Networking TCP/IP

Backups & DR

Open source contributions

Tools

Zabbix

Prometheus

Ansible

Puppet

OpenStack

Jenkins

Job description

As the founding entity of RAINBOW PARTNERS, Quanteam is a consulting firm specializing in Banking, Finance, and Financial Services. Guided by our core values of closeness, teamwork, diversity, and excellence, our team of 1,000 expert consultants, representing 35 different nationalities, collaborates across 10 international offices: Paris, Lyon, New York, Montreal, London, Brussels, Geneva, Lisbon, Porto and Casablanca.

We are looking for a senior Linux Systems Administrator for one of our clients, an investment bank based in Montreal.

Key Responsibilities:

• -Work as an integral member of an agile-organized team delivering Unix operational support and infrastructure projects.
• -Follow up on client requests and incidents, acting as a trusted business partner with full transparency and accountability.
• -Participate in Follow-the-Sun support, covering Europe and Asia.
• -Propose innovative, scalable, and industrialized solutions to automate repetitive tasks and improve overall team efficiency.
• -Actively participate in enterprise-wide automation initiatives by collaborating with multiple feature teams.
• -Manage activities in accordance with the ITIL framework (Change Management, Incident/Request Management).
• -Onboard team operational routines and participate in planned overtime operations at least once per month.
• -Work closely with the Bangalore-based Level 1 support team to continuously optimize service delivery.
• -Strengthen expertise in agile practices, with Scrum at the core of team organization.
• -Contribute to API design and development to automate IT operations (strong Python expertise required).
• -Collaborate in the design and delivery of feature team products, providing technical insight and architectural perspective.
• -Support a large-scale environment of 2,500+ servers.

Required Qualifications and Skills:

• -Advanced expertise in Linux Server Operating Systems (RHEL): administration, lifecycle management, hardening, and performance tuning.
• -Strong troubleshooting skills at kernel, process, memory, and I/O levels.
• -Experience with monitoring and observability tools (e.g., Zabbix, Prometheus, custom health checks).
• -Development and scripting skills (Python, Bash, Ansible, Puppet).
• -Experience with production-grade automation, API integrations, and tooling.
• -Knowledge of volume management (LVM, multipathing) and filesystem tuning (XFS, ext4).
• -Experience with cloud-based technologies (hybrid architectures, provisioning, integration).
• -Proficiency with Red Hat Identity Management (IdM), LDAP integration, authentication and authorization workflows.
• -Knowledge of enterprise hardware (HP/DELL x86), including firmware, BIOS, RAID.
• -Strong understanding of TCP/IP and related services (LDAP, DHCP, DNS, SMTP, NFS) and troubleshooting of complex dependencies.
• -Experience with enterprise backup platforms (e.g., NetBackup), restore validation, and disaster recovery readiness.
• -Knowledge of SAN, Fibre Channel storage, NFS, and multipath I/O configuration.
• -Understanding of high availability clustering and failover mechanisms.
• -Experience with patch management, compliance, and vulnerability remediation.
• -Strong skills in incident root cause analysis (RCA) and production problem management.
• -Experience contributing to open-source projects (e.g., GitHub), including code reviews and documentation.

Nice to Have:

• -Experience with Red Hat Satellite (content views, lifecycle environments, patch management at scale).
• -Knowledge of Elastic Stack (Elasticsearch, Kibana, Logstash) for centralized logging.
• -Experience with Software Factory tooling (e.g., Jenkins, CI/CD pipelines) and Continuous Delivery practices.
• -Knowledge of OpenStack (compute, networking, storage, operations).

Language:

• -Ability to communicate in English, both orally and in writing, is a requirement as the person in this position will need to collaborate regularly with colleagues and partners in the United States.