Senior RHEL Engineer

Location Quebec Category Permanent or Contract Type Hybrid Salary To be confirmed Language French English Bilingual Security None Seniority Level Senior Type Hybrid Salary To be confirmed About The Hiring Company Opticca Consulting Inc. is a Canadian technology consulting firm specializing in Microsoft Azure cloud infrastructure, enterprise landing zones, cloud migrations, and managed services. We help public sector and enterprise organizations modernize their infrastructure through secure, scalable, and automated cloud platforms built on Microsoft Azure. Our consultants work on complex cloud transformation projects, implementing Azure environments using Microsoft Cloud Adoption Framework (CAF) best practices and Infrastructure-as-Code automation. What We Offer • Opportunity to work on large-scale cloud transformation projects • Exposure to enterprise Azure architectures • Collaborative consulting environment • Competitive compensation • Flexible hybrid work environment About The Opportunity Opticca Consulting is seeking a highly experienced Senior RHEL Engineer to design, build, secure, automate, and support enterprise Red Hat Enterprise Linux environments across physical, virtual, and cloud infrastructure. The role requires deep operating-system expertise, disciplined automation, and the ability to diagnose complex issues across compute, identity, networking, storage, security, performance, and application dependencies. You can expect to • Design, build, configure, harden, patch, upgrade, and support RHEL servers across data-centre, virtualization, container, and cloud environments. • Create and maintain standardized server builds, configuration baselines, repositories, lifecycle policies, and automated provisioning workflows. • Administer Red Hat Satellite, content views, lifecycle environments, activation keys, host groups, repositories, subscriptions, and patch compliance. • Integrate Linux systems with enterprise identity and access services using Red Hat IdM, Active Directory, SSSD, Kerberos, LDAP, sudo policies, certificates, and MFA where applicable. • Configure and troubleshoot networking, DNS, time synchronization, firewalls, SELinux, filesystems, LVM, multipathing, NFS, SMB, iSCSI, and related services. • Implement security hardening and compliance controls based on organizational standards and recognized benchmarks; remediate vulnerabilities and audit findings. • Automate provisioning, configuration, patching, validation, compliance, and operational tasks with Ansible Automation Platform and scripting. • Monitor and tune CPU, memory, I/O, filesystem, kernel, network, and application performance; diagnose complex service degradation and outages. • Plan and execute major-version upgrades, migrations, platform refreshes, high-availability configurations, backup, recovery, and disaster-recovery testing. • Develop build documents, standards, runbooks, troubleshooting guides, implementation plans, and knowledge-transfer materials; provide senior escalation support. Must haves Required Qualifications • Five or more years of hands-on enterprise Linux administration, with deep experience supporting RHEL production environments. • Advanced knowledge of RHEL installation, boot, systemd, kernel, packages, repositories, filesystems, LVM, networking, security, and performance analysis. • Hands-on experience with Red Hat Satellite and enterprise patch, subscription, repository, and lifecycle management. • Experience integrating Linux with Active Directory or Red Hat IdM and troubleshooting authentication, authorization, certificates, and name-resolution issues. • Strong understanding of SELinux, firewalld/nftables, vulnerability remediation, secure configuration, logging, auditing, and least-privilege administration. • Proficiency with Ansible, shell scripting, Git, and automated build and operational practices. • Proven ability to work independently on complex incidents while coordinating effectively with application, database, network, storage, and security teams. • Professional working proficiency in French; English is required for collaboration with clients, vendors, and technical teams outside Quebec. Preferred Assets • RHCSA, RHCE, Red Hat Certified Specialist, or comparable certification. • Experience with RHEL High Availability Add-On, Pacemaker/Corosync, Red Hat Insights, Satellite Capsule, or disconnected environments. • Experience with VMware, Hyper-V, KVM, Azure, AWS, OpenShift, or OpenStack. • Experience with enterprise migrations, in-place upgrades, SAP or database platforms, or regulated environments. Education and Certification • College diploma or university degree in computer science, engineering, information technology, or an equivalent combination of education and relevant experience. • Applicable Red Hat and industry certifications are valued but do not replace demonstrated hands-on capability. Nice to haves Success Profile • A pragmatic and accountable engineer who combines technical depth with sound judgment, communicates risks early, collaborates across disciplines, and leaves environments more stable, secure, automated, and supportable than they found them.