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Job Summary:
Ursus, Inc. is seeking an experienced Infrastructure Automation Engineer for a focused 90-day engagement. The role involves working within a mature VMware environment to secure provisioning automation and ensure workloads meet internal management policies for security and data integrity.
Responsibilities:
• Extend existing production Aria Automation environment with new virtual machine templates for SSM and SentinelOne self-registration
• Build reusable, parameterized templates across Aria Automation, Terraform, and Ansible
• Support for all three OS types: Windows, Linux, and macOS (Client-based)
• Integrate with existing CI-driven provisioning and deprovisioning workflows already in place
• Treat the existing production environment with care — validate all changes in non-production before any production promotion. Attention to detail and clear team communication of possible clear assessment of production impact it imperative
• Automate SSM Agent installation and registration as part of every provisioning workflow
• Configure hybrid activation codes for all on-premises (non-EC2) targets across all OS types
• Validate SSM registration before marking provisioning complete
• Automate SentinelOne agent installation and silent deployment for Windows, Linux, and macOS
• Develop hands-off integration with SentinelOne so that any defined exclusions are in place at installation time
• Confirm agent check-in as a provisioning completion gate
• Work directly with the internal Security group to define and validate required exclusion sets
• Define system integration for up-front exclusions activation process
• Develop and document a formal exclusions process — covering what exclusions are permissible, how they are requested, reviewed, and approved
• Maintain all code in GitLab with regular, meaningful check-ins, pull requests and regular reviews with team
• Follow standard software development practices: branching strategies, merge requests, commit hygiene, and code review
• Build and maintain GitLab CI pipelines for linting, validation, testing, and deployment of provisioning and migration code
• Implement pipeline stages for Dev, Staging, and Production promotion with appropriate approval gates
• Use Artifactory to store and retrieve binary dependencies
• Organize repositories clearly so the internal team can understand, maintain, and extend the work after the engagement ends
• Work with the infrastructure team to inventory all ~1,500–2,000 VMs — workload types, OS, network topology, storage layout, and VMware-specific dependencies (VMware Tools features, VMXNET3, paravirtual SCSI, VMware-specific drivers, etc.)
• Self-review all VMs and migration candidates for VMware-specific dependencies — proactively identify anything that may not translate cleanly to Proxmox and raise findings with the team leader before proceeding
• Coordinate with the infrastructure team on Proxmox capacity planning — advise on node count, storage sizing for ~300TB of VM data, and network configuration
• Design and develop a migration script toolkit (Bash, Python, PowerShell, and/or Ansible) to automate export from VMware and import/conversion to Proxmox-compatible formats using tools such as virt-v2v and qemu-img
• Automate post-migration configuration: network interface remapping, storage attachment, and VM hardware profile alignment
• Integrate SSM Agent and SentinelOne re-registration into the post-migration workflow so migrated VMs are immediately managed and protected on Proxmox
• Implement pre- and post-migration validation checks — confirming VM boot, network connectivity, SSM registration, and SentinelOne check-in before marking a migration complete
• Prefer live migration where feasible; where downtime is unavoidable, coordinate directly with end-users to agree on outage windows before proceeding
• Support a phased migration approach: non-production and lower-risk workloads first, then production with change management gates
• Consult freely and proactively with the team leader throughout — ask questions early, flag concerns immediately, and do not proceed with uncertain migrations without alignment
• Deliver a migration runbook covering prerequisites, execution steps, rollback procedures, and known edge cases
• Advise the infrastructure team on capacity requirements based on current VMware inventory and ~500TB data volume
• Assist with validation of Proxmox-based self-service provisioning system. Develop and run test scripts and Terraform and cloud-init templates for testing
• Prototype VM provisioning using Terraform (Proxmox provider) and Ansible
• Validate Proxmox networking, storage, and resource configuration against workload requirements
• Deliver runbooks for all provisioning templates, CI pipelines, and migration workflows
• Document integration architecture, secret/credential management with existing internal controls
• Deliver the Security-approved exclusions process as a standalone document
• Deliver the migration script toolkit with inline documentation and a standalone operations guide
• Conduct a knowledge transfer session with the internal infrastructure team before engagement close
Qualifications:
Required:
• Aria Automation: Hands-on experience with production VMware Aria / vRealize Automation 8.x environments; Cloud Assembly, ABX or vRO
• Terraform: Proficient with HCL, modules, state management; vSphere, AWS, and Proxmox providers
• Ansible: Experience writing playbooks and roles for OS configuration, agent deployment, and migration tasks
• AWS SSM: Hands-on with SSM Agent deployment, hybrid activations for on-premises targets, and IAM configuration
• SentinelOne: Experience with agent deployment across Windows, Linux, and macOS; Management Console API
• Proxmox: Familiarity with Proxmox VE administration, VM/template management, storage, and networking
• VMware Migration: Experience exporting VMware VMs and converting to KVM/QEMU-compatible formats
• Migration Tooling: Familiarity with virt-v2v, qemu-img, or equivalent VMware-to-KVM conversion tooling
• macOS Automation: Experience automating agent deployment and configuration on Client-based macOS
• GitLab: Comfortable with GitLab repo management, branching, merge requests, and regular check-in discipline
• GitLab CI: Proficient building .gitlab-ci.yml pipelines with multi-stage, multi-environment deployments
• Artifactory: Familiarity with JFrog Artifactory for artifact storage and pipeline integration
• Secret Management: Experience integrating with 1Password Vaults for secret retrieval in scripts and pipelines
• Scripting: Proficient in Bash, Python, and/or PowerShell
• Collaboration: Proactive communicator — comfortable asking questions, raising risks early, and working closely with a team leader and infrastructure team
• Security Collaboration: Demonstrated ability to work cross-functionally with Security teams on exclusion processes and token governance
Preferred:
• Experience with Packer for building Proxmox or VMware VM templates
• Familiarity with HashiCorp Vault or AWS Secrets Manager
• Prior work in security-conscious environments (SOC 2, FedRAMP, etc.)
• Experience with large-scale VMware-to-KVM or VMware-to-Proxmox migrations
• Experience with GitLab Environments and deployment tracking
• Experience integrating provisioning or migration workflows with ITSM tools (e.g., ServiceNow)
Company:
Ursus, Inc., has been recognized by Staffing Industry Analysts (SIA) for four consecutive years as the fastest-growing technical and creative staffing firm in the United States. Founded in 2015, the company is headquartered in San Francisco, USA, with a team of 201-500 employees. The company is currently Growth Stage.