Senior Systems Engineer

Job description

## Why Verifone For more than 30 years, Verifone has established a remarkable record of leadership in the electronic payment technology industry. Verifone has one of the leading electronic payment solutions brands and is one of the largest providers of electronic payment systems worldwide. Verifone has a diverse, dynamic and fast paced work environment in which employees are focused on results and have opportunities to excel. We take pride in the fact that we work with leading retailers, merchants, banks, and third-party partners to invent and deliver innovative payments solution around the world. We strive for excellence in our products and services and are obsessed with customer happiness. Across the globe, Verifone employees are leading the payments industry through experience, innovation, and an ambitious spirit. Whether it's developing the next platform of secure payment systems or searching for new ways to bring electronic payments to new markets, the team at Verifone is dedicated to the success of our customers, partners and investors. It is this passion for innovation that drives each one of our employees for personal and professional success. Verifone is proudly an in-office work culture as we see immense benefits to career development and business results from our colleagues being physically co-located. ## What's Exciting About the Role The Senior Systems Engineer is a hands-on, operationally accountable role at the heart of Verifone's Americas IT Infrastructure team. You will serve as a key technical contributor to Verifone's VMware-to-KVM/CloudStack migration program and broader platform operations — bringing depth across Linux, Windows, storage, and DevOps tooling while operating within a PCI DSS environment. This is a role for an experienced engineer who can independently own workstreams, mentor junior team members, and drive cross-team initiatives with limited supervision. You will proactively identify issues, propose solutions, and deliver results that directly impact Verifone's infrastructure reliability and compliance posture. ## Key Responsibilities - **Virtualization & Cloud Platform** - Lead the design and execution of KVM/libvirt hypervisor deployments across US data centers. - Drive VMware-to-KVM/CloudStack workload migrations end-to-end, including planning, VM conversion, storage migration, and cutover coordination. - Administer CloudStack zones, clusters, templates, and storage pools; own VM lifecycle operations at scale. - Independently troubleshoot complex hypervisor, networking, and storage performance issues. **DevOps Tooling & Automation** - Own and maintain Ansible playbooks for infrastructure provisioning, configuration management, and patching at scale. - Build and manage Jenkins CI/CD pipelines for infrastructure-as-code workflows and automated deployments. - Lead adoption of Git-based IaC practices across the team and guide junior engineers' automation contributions. - Develop Python and Bash automation to reduce operational toil and improve consistency across environments. **Windows & Linux Server Operations** - Administer RHEL/Rocky/Ubuntu Linux and Windows Server environments — provisioning, patching, hardening, and lifecycle management. - Support Active Directory domain decommission and consolidation, including legacy Windows Server migration activities. - Enforce OS security baselines aligned to PCI DSS v4.0 and provide evidence for audit cycles. - Serve as Tier 3 escalation for OS-level incidents across Linux and Windows platforms. **Storage** - Manage SAN/NAS environments including LUN provisioning, zoning, multipath I/O, and iSCSI/FC configuration. - Support Pure Storage FlashArray and VMAX operations, migrations, and performance troubleshooting. - Integrate block and file storage with KVM/CloudStack primary and secondary storage pools. **Team & Cross-Functional Collaboration** - Provide guidance and day-to-day support to junior engineers; assist with onboarding and informal training. - Liaise with networking, security, and storage teams to coordinate complex cross-domain changes. - Participate in on-call rotation as a senior escalation resource. - Document runbooks, architecture decisions, and procedures in Confluence; manage work via ServiceNow and Jira. ## Required Qualifications - 7+ years in enterprise systems engineering or IT infrastructure, with demonstrated scope expansion over time - 4+ years of production KVM/libvirt hypervisor management - Strong Linux administration — RHEL/Rocky/CentOS or Debian-based at scale - Windows Server administration — Active Directory, DNS/DHCP, GPO, and domain lifecycle - Ansible — authoring and maintaining playbooks for multi-environment configuration management - Jenkins or equivalent CI/CD pipeline experience for infrastructure automation - Scripting proficiency in Bash and Python - SAN storage administration — LUN management, zoning, multipath I/O, iSCSI or Fibre Channel - Demonstrated ability to mentor junior engineers and guide technical work - Experience working within PCI DSS or another regulated compliance framework ## Preferred Qualifications - CloudStack or OpenStack orchestration platform experience - Prior VMware-to-KVM migration programme experience - Pure Storage FlashArray or Dell EMC VMAX/PowerMax administration - HPE Synergy or BladeSystem chassis operations - RHCE, RHCSA, or equivalent Linux certification - Git-based IaC workflow experience (Terraform, GitOps patterns) - Exposure to SIEM/FIM tooling (Wazuh, Splunk, or similar) ## Our Commitment Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.