System EngineerAdministrator

We are looking for an experienced professional to support the containerization of an existing application currently deployed on a traditional virtual machine within a complex productioncritical environment.

The application is being migrated from a VMbased installation to a Dockerbased deployment. Docker images are prepared by the application development teams and this role focuses on taking over from that point to integrate deploy operate and upgrade the containerized application on Linuxbased virtual machines.

The professional will play a key role in establishing a reliable container runtime ensuring a smooth migration maintaining service continuity and supporting production operations. Close collaboration with application developers infrastructure teams and operations is essential throughout the migration and subsequent lifecycle.

Key Responsibilities
Support the containerization of an existing application currently deployed on a traditional virtual machine (currently we are using RHEL v8) ensuring a smooth and controlled migration to Docker
Take ownership of integrating and deploying Docker images produced by application teams onto Linux based virtual machines
Configure and manage the Docker runtime environment on VMs including networking storage/volumes resource allocation and lifecycle management
Plan and execute application upgrades including rolling upgrades version transitions compatibility validation and rollback strategies
Ensure platform stability and resiliency during migration deployment upgrades and day to day operations
Support system and application integration ensuring correct interaction between containerized applications host systems databases and external services
Investigate and resolve production issues related to Docker VM infrastructure and application runtime through log analysis and root cause analysis
Develop and maintain operational procedures and scripts related to Docker deployment upgrades and VM lifecycle activities
Work closely with application developers taking over after image creation and participating in integration deployment and upgrade reviews

Technical Skills (Required)
Strong handson experience with Docker containerization focusing on integration and deployment of application images prepared by development teams
Proven experience deploying Docker containers on virtual machines (VMs) including host preparation configuration and runtime management
Solid understanding of Docker lifecycle management (image handling container orchestration on single VMs networking volumes resource constraints)
Strong experience in system and application integration ensuring correct interaction between applications databases and underlying platforms
Experience with Linux Red Hat (application installation scripting troubleshooting). Currently we are using RHEL v8
Experience with ksh scripting (application installation operational scripts)
Basic to intermediate Python programming skills
Ability to investigate and support production issues (log analysis rootcause analysis coordination operations teams)
Ability to work closely with application developers including participation in technical reviews integration design discussions and validation of deployment/configuration choices

Nice to Have Skills
Knowledge of CI/CD pipelines related to container build delivery and deployment
Familiarity with networking concepts in containerized environments (ports bridges TLS firewall rules)
Exposure to monitoring and logging of containerized workloads (e.g. Elastic / Kibana or similar)
Experience with automation tools (Ansible) for VM or Docker lifecycle management
Knowledge of PKI / SSL (system certificate setup and maintenance)

SKILLS:

• Ability to work closely with application developers
• Experience deploying Docker containers on virtual machines
• Experience with automation tools (Ansible)
• Experience with automation tools (Ansible)
• Experience with ksh scripting
• Experience with Linux Red Hat
• Exposure to monitoring and logging of containerized workloads
• Exposure to monitoring and logging of containerized workloads
• Familiarity with networking concepts in containerized environments
• Familiarity with networking concepts in containerized environments
• Knowledge of CI/CD pipelines related to container
• Knowledge of PKI / SSL
• Knowledge of PKI / SSL
• Python programming
• Solid understanding of Docker lifecycle management
• Strong experience in system and application integration
• Strong hands-on experience with Docker containerization (at least years)
• Senior (6-9))