{"id":3908322,"url":"https://alion.io/job/querentia-release-engineer-rhel-migration-platform-modernization","title":"Release Engineer – RHEL Migration / Platform Modernization","company":{"id":4460938,"name":"Querentia","domain":"querentia.com","url":"https://alion.io/company/querentia","size_band":"1-10","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":{"grade":"C","score":57,"open_postings":218,"ghost_share":0.72,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-10T06:52:35Z"}},"role":"DevOps","role_family":"DevOps","seniority":"senior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Calgary, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"CI/CD","optional":false},{"name":"CMake","optional":false},{"name":"CVE","optional":false},{"name":"Docker","optional":false},{"name":"GCC","optional":false},{"name":"Groovy","optional":false},{"name":"Jenkins","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Podman","optional":false},{"name":"Python","optional":false},{"name":"Rancher","optional":false},{"name":"Red Hat","optional":false},{"name":"C","optional":true},{"name":"C++","optional":true}],"status":"live","first_seen_at":"2026-07-02T00:00:00Z","employer_posted_date":"2026-07-02","last_verified_at":"2026-11-08T00:21:07Z","board_verified":false,"closed_at":null,"days_open":132,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":131},"description":"Role: Release Engineer - RHEL Migration / Platform ModernizationJob Description\nWe are seeking a Release Engineer to support an enterprise RHEL7 to RHEL9 modernization initiative. The ideal candidate will have strong hands-on experience in Linux platform engineering, CI/CD, containerization, package engineering, and security remediation .\nKey Responsibilities\nLead migration of applications and services from RHEL7 to RHEL9 , resolving package and dependency issues.\nBuild, compile, and manage RPM packages and troubleshoot binary compatibility challenges.\nModernize container platforms by migrating from Docker to Podman and supporting Rancher-managed Kubernetes environments.\nDevelop and maintain Jenkins CI/CD pipelines using Groovy , and build automation tools using Python .\nPerform vulnerability remediation , CVE resolution, and implement RHEL9 security hardening.\nAutomate large-scale OS configuration using Ansible and support secure software supply chain practices.\nRequired Skills & Experience\n5-7 years of Linux/Platform Engineering experience with 5+ years of hands-on Red Hat Enterprise Linux (RHEL) administration, including RHEL9 .\nStrong expertise in Linux administration, Python, Groovy, Jenkins, Ansible, Docker, Podman, Kubernetes, and Rancher .\nExperience with Make, CMake, GCC , package engineering, and CI/CD automation.\nStrong background in platform modernization, containerization, and OS migration .\nExperience with security hardening, vulnerability remediation, and enterprise infrastructure modernization .\nExcellent communication skills with the ability to work in client-facing environments.\nIdeal Candidate\nA hands-on Platform/Release Engineer with deep Linux engineering expertise who has successfully delivered RHEL modernization, CI/CD automation, and container platform transformations . 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