Senior Platform Engineer
Employment Information
Job Description
Engineer focusing on VMware NSX-T lifecycle management and operational support at Mastercard. Managing network services in a private cloud and data center environment.
Responsibilities:
- Operate and upgrade VMware NSX-T across multiple data centers: plan/execute lifecycle activities (NSX Managers/Edges/Transport Nodes), pre-checks, impact assessments, change/rollback plans, post-validation, and documented handoffs.
- Administer NSX configurations: create/modify segments & port groups (VDS/VSS), transport zones, segment profiles, DHCP profiles, T0/T1 routing, NAT, BGP/OSPF adjacencies, NSX DFW sections/policies, Groups/Tags, and (as applicable) NSX Advanced Load Balancer objects.
- Support Illumio microsegmentation (bare-metal firewalls): manage PCE objects & label schemas, author and validate segmentation policies, deploy/upgrade agents (VENs) where applicable, support enforcement modes, and partner on app onboarding/runbooks.
- Manage certificates for NSX Managers/Edges and related appliances: track expirations, coordinate CSRs, perform installs/rotations, and maintain inventories & workflows to eliminate certificate-related outages.
- Own licensing for NSX & Illumio: monitor entitlements, forecast needs, initiate purchase requests, and ensure timely renewals and compliant deployment.
- Triage and resolve incidents/problems: perform root-cause analysis across virtual networking, routing, and segmentation; maintain SLAs; create follow-up problem records with corrective actions and knowledge articles.
- Open and drive vendor cases (VMware, Illumio, and OEMs): provide diagnostics, packet captures/logs, reproduce issues in lower environments, and track to closure with clear stakeholder updates.
- Harden and validate security posture: maintain least-privilege DFW/Illumio policies, coordinate change windows, and support audits (e.g., PCI) with evidence, diagrams, and rule reviews.
- Automate and document: use PowerCLI, Python, Ansible, or REST APIs to standardize changes and validations; write SOPs/runbooks, diagrams, and KBs; contribute to CI/CD pipelines where appropriate.
- Partner cross-functionally: collaborate with platform, compute, storage, security, and application teams to plan maintenance, align dependencies, and minimize risk.
- Participate in on-call rotation for NSX/segmentation services and support peak-season readiness and freeze-window protocols per Mastercard standards.
- Comply with ITIL processes: create/execute CRQs with risk/impact/rollback details, update INC/PRB records, and communicate status through executive-ready channels.
Requirements:
- Demonstrate hands-on expertise with VMware NSX-T Data Center: upgrades/migrations, Managers/Edges, T0/T1, EVPN/VXLAN fundamentals, DFW policy design, Groups/Tags, NAT, and BGP/OSPF peerings.
- Have solid vSphere/vCenter/ESXi operational skills, including VDS networking, host transport configuration, and connectivity troubleshooting across virtual/physical boundaries.
- Show practical experience with Illumio Core (PCE) or equivalent microsegmentation platforms for bare-metal firewall use cases: labels/policies, agent lifecycle, policy simulation/validation, and staged enforcement.
- Possess strong troubleshooting skills spanning L2–L4 (and basic L7 where relevant): routing, neighbor states, MTU/ECMP asymmetry, ACL/DFW hits, NAT, and cert/trust failures.
- Understand certificate management (PKI, CSRs, chains, renewal/rotation) and license administration (entitlements, consumption, renewal windows).
- Communicate clearly with technical and non-technical audiences; produce crisp change plans, RCA documents, and executive-level summaries.
- Embrace automation and IaC concepts (PowerCLI, Python, Ansible, REST APIs); familiarity with code review and version control is a plus.
- Operate within ITIL frameworks (INC/PRB/CRQ) and change governance; comfortable running changes during maintenance windows and peak-season constraints.
- (Preferred) Hold certifications such as VMware VCP-NV / VCIX-NV, Illumio certifications, RHCSA/Linux+, and/or ITIL v4; exposure to NSX Advanced Load Balancer (Avi) is beneficial.
- (Nice to have) Familiarity with adjacent domains: physical networking (Arista/Cisco), firewalling, IDS/IPS/service insertion, and compliance (e.g., PCI DSS).
Benefits:
- insurance (including medical, prescription drug, dental, vision, disability, life insurance)
- flexible spending account and health savings account
- paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave)
- 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire
- 10 annual paid U.S. observed holidays
- 401k with a best-in-class company match
- deferred compensation for eligible roles
- fitness reimbursement or on-site fitness facilities
- eligibility for tuition reimbursement
- many more
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