Posted 4 months ago
Release Engineer – RHEL Migration / Platform Modernization
@ Querentia Inc.
Calgary, Alberta
Overview
Querentia Inc. is hiring a contract Release Engineer to lead an enterprise RHEL7 to RHEL9 modernization initiative. The work covers package and dependency migration, RPM builds, container platform modernization from Docker to Podman with Rancher-managed Kubernetes, Jenkins CI/CD pipelines, and security remediation. The role requires 5 to 7 years of Linux or platform engineering experience with at least 5 years of hands-on RHEL administration.
Responsibilities:
- Migrate applications and services from RHEL7 to RHEL9
- Build, compile and manage RPM packages
- Migrate Docker to Podman and support Rancher-managed Kubernetes
- Develop Jenkins CI/CD pipelines in Groovy and Python automation
- Remediate vulnerabilities and CVEs and harden RHEL9
Requirements summary:
- 5 to 7 years of Linux or platform engineering experience
- 5+ years of hands-on RHEL administration including RHEL9
- Strong Python, Groovy, Jenkins, Ansible, Docker, Podman, Kubernetes and Rancher skills
- Experience with Make, CMake, GCC and package engineering
- Background in OS migration and containerization modernization
- Excellent client-facing communication skills
Tools & skills
Source and dates
Source type not verified · jsonld
- Employer posting date
- 2026-07-01
- First seen by our source
- 2026-10-26
- Source record updated
- 2026-11-02
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Software development |
| Experience | 5+ years |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Querentia Inc.
| Field | Value |
|---|---|
| Open jobs on Jobsy | 331 |
Role: Release Engineer - RHEL Migration / Platform Modernization
Job Description
We 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 .
Key Responsibilities
•
Lead migration of applications and services from RHEL7 to RHEL9 , resolving package and dependency issues.
•
Build, compile, and manage RPM packages and troubleshoot binary compatibility challenges.
•
Modernize container platforms by migrating from Docker to Podman and supporting Rancher-managed Kubernetes environments.
•
Develop and maintain Jenkins CI/CD pipelines using Groovy , and build automation tools using Python .
•
Perform vulnerability remediation , CVE resolution, and implement RHEL9 security hardening.
•
Automate large-scale OS configuration using Ansible and support secure software supply chain practices.
Required Skills & Experience
•
5-7 years of Linux/Platform Engineering experience with 5+ years of hands-on Red Hat Enterprise Linux (RHEL) administration, including RHEL9 .
•
Strong expertise in Linux administration, Python, Groovy, Jenkins, Ansible, Docker, Podman, Kubernetes, and Rancher .
•
Experience with Make, CMake, GCC , package engineering, and CI/CD automation.
•
Strong background in platform modernization, containerization, and OS migration .
•
Experience with security hardening, vulnerability remediation, and enterprise infrastructure modernization .
•
Excellent communication skills with the ability to work in client-facing environments.
Ideal Candidate
A hands-on Platform/Release Engineer with deep Linux engineering expertise who has successfully delivered RHEL modernization, CI/CD automation, and container platform transformations . Pure support or system administration profiles are not suitable.
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