Systems Integration Engineer - C5ISR Programs

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Full Time Professional Fairfax, VA, US 1 Attachments

6 days ago Requisition

$ To $ Annually

Full Stack Systems Integrator

Dell AX670 Hyperconverged Infrastructure (HCI) Cluster — Enterprise & Mission Systems

Job Level:Senior / Lead (individual contributor with technical ownership of the full stack)

Employment Type:Full-time

Security Clearance:Active DoD Secret clearance required at time of hire; ability to obtain and maintain higher-level access as required by the program

Work Location:On-site / program facility (customer-designated location); OCONUS travel required

The Full Stack Systems Integrator is responsible for the design, deployment, configuration, hardening, and sustainment of a Dell AX670 HCI clusters hosting a dense set of enterprise infrastructure and mission‑specific application workloads. This individual owns the environment end to end — from the physical HCI nodes, storage, and networking fabric, through the Windows Server / Hyper‑V virtualization layer, up to the guest operating systems, core infrastructure services, and program‑specific application servers running on top.

The role requires the ability to reason across the full stack simultaneously: recognizing when a symptom at the application layer (e.g., authentication failures, certificate errors, replication lag, patch failures) traces back to storage, networking, virtualization, or Active Directory, and vice versa.

This is a hands‑on engineering role. The Integrator will build, document, troubleshoot, patch, and continuously improve the roles and workloads below, working closely with information system security officers (ISSOs), program application owners, and the government customer to keep the environment mission‑ready, compliant, and highly available.

• Deploy, configure, and sustain the Dell Integrated System on AX670 nodes, including cluster validation, Storage Spaces Direct (S2D), Software‑Defined Networking (SDN) where applicable, and Hyper‑V virtualization.
• Manage cluster health, storage pool capacity and resiliency, live migration, quorum/witness configuration, and firmware/driver lifecycle (Dell Update Catalogs, iDRAC/Lifecycle Controller) in coordination with maintenance windows.
• Right‑size and place virtual machines across the cluster to balance compute, memory, and storage I/O across the full set of workloads listed below.
• Own cluster‑level backup, disaster recovery, and failover/failback procedures, and validate them through periodic recovery testing.

The Integrator installs, configures, secures, patches, and troubleshoots the following virtualized server roles hosted on the cluster:

Identity, Naming, and Access

• Active Directory Domain Services, DNS, and Global Catalog — deployed redundantly across two (2) domain controllers; responsible for replication health, FSMO role placement, DNS zone integrity, GPO management, and directory‑integrated security hardening (e.g., STIG compliance).
• DHCP Server — scope design, failover/split‑scope configuration, reservation management, and integration with DNS dynamic updates.

Database and Messaging

• SQL Server Always On Availability Group node — configure and maintain availability group membership, listener configuration, synchronous/asynchronous replicas, backups, and failover testing for the databases supporting SCOM, SCVMM, and other application workloads.
• Exchange Server — mailbox and transport services, database availability, certificate bindings, and mail flow troubleshooting within the enclave.

Public Key Infrastructure (PKI) and Smart Card Services

• Certificate Authority / Issuing CA and Subordinate PKI Certification Management Server — manage the internal PKI hierarchy, certificate templates, auto‑enrollment, CRL/AIA publication, and issuance workflows.
• Offline Root CA — maintain the offline root in accordance with PKI security procedures, including scheduled bring‑up for CRL renewal and subordinate re‑signing under documented, audited procedures.
• Smart Card Enrollment Server…