Sr Systems Security Engineer / Sr. Database & Storage Administrator

Sierra Nevada Corporation•Lone Tree, CO

2d•$143,487 - $197,295•Hybrid

About The Position

If you like solving complex IT and security problems using your deep analytical skills, this is the opportunity for you! As a Senior Systems Security Engineer, you will lead the design and implementation of our security infrastructure. You will manage complex security projects, provide strategic direction for security practices, and mentor junior engineers.

Requirements

Bachelor's degree in Systems Security, Network Engineering, Information Technology, or related Engineering discipline.
8+ years of experience in IT security or a related field. Relevant experience can be considered as a substitute for the required educational qualifications. In the absence of a degree, a minimum of 12 years of related experience is required. Higher level relevant degree may substitute for experience.
Expert understanding of cybersecurity principles and practices.
Experience with security frameworks and standards such as National Institute of Standards and Technology (NIST), ISO 27001.
Bachelor's degree in Computer Science, Information Systems, Information Technology, Systems Engineering, or a closely related technical field.
CISSP (Certified Information Systems Security Professional) — active certification preferred.
IAM Level III or IAT Level III baseline certification required per DoD 8570/8140.
One or more Professional Database Certification: Oracle OCP/OCM, Microsoft Certified: Azure Database Administrator Associate, PostgreSQL Professional Certification, or AWS Certified Database Specialty.
8 years of progressive database administration experience with hands-on production ownership of at least three of the following platforms: SQL Server 2019/2022, PostgreSQL, MySQL/MariaDB, Oracle Database, Apache Cassandra, MongoDB, or a cloud-managed DBMS.
3 years of hands-on enterprise storage administration experience — including NetApp ONTAP or HPE storage platforms (3PAR, Primera, Nimble, or Alletra) in a production or program environment.
Demonstrated experience with SAN administration — LUN provisioning, Fibre Channel or iSCSI fabric management, zoning, and multipath configuration — in a production environment.
Demonstrated experience with NAS administration — NFS and CIFS/SMB share management, export policy configuration, and Active Directory integration.
Deep working knowledge of relational database design including normalization, indexing strategy, query optimization, stored procedures, and RBAC implementation.
Proven hands-on experience with at least one NoSQL platform (Cassandra, MongoDB, or Redis) in a production environment — including schema design, cluster management, and performance tuning.
Demonstrated experience designing and validating backup and recovery strategies with defined and tested RTO/RPO targets across both database and storage platforms.
Working knowledge of database and storage security hardening practices including DISA STIG compliance, encryption at rest and in transit, audit logging, and access control in a regulated environment.
Current/Active Top Secret U.S. Security Clearance with SCI eligibility is required.
U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment.
Ability to work primarily at a computer for extended periods.
Capability to participate in on-call rotation for incident response.
Must be able to lift up to 25 lbs occasionally.
Ability to work in an office or hybrid environment.
Occasional travel may be required.

Nice To Haves

Aerospace & Defense industry background with experience managing databases and storage in classified or air-gapped program environments.
NetApp NCDA (NetApp Certified Data Administrator) or NCSE (NetApp Certified Storage Engineer) certification.
HPE ASE (Accredited Solutions Expert) Storage Solutions or equivalent HPE storage certification.
Relevant database certifications: Oracle OCP/OCM, Microsoft Certified: Azure Database Administrator Associate, PostgreSQL Professional Certification, or AWS Certified Database Specialty.
Experience with storage virtualization in VMware environments — vSphere datastore management, vVols, VMFS, and integration with NetApp or HPE storage via VAAI/VASA.
Experience with Pure Storage FlashArray or Dell EMC PowerStore/PowerMax as an additional storage platform.
Familiarity with software-defined storage (SDS) solutions including NetApp StorageGRID, Ceph, or cloud object storage (AWS S3, Azure Blob) as part of a tiered storage strategy.
Experience with database and storage monitoring tooling — NetApp AIQUM/OCI, HPE InfoSight/CloudPhysics, SQL Server Management Studio, pgAdmin, OEM, or equivalent.
Understanding of containerized database deployments using Kubernetes (StatefulSets, persistent volumes, CSI storage drivers) and how persistent storage integrates with container orchestration platforms.
Experience with database migration projects — schema conversion, data validation, and production cutover planning across heterogeneous database environments.
DISA STIG application experience for database platforms (SQL Server STIG, Oracle STIG, PostgreSQL STIG) and involvement in ATO package development.
PMP, INCOSE ASEP, or ITIL v4 certification.

Responsibilities

Administer SQL Server 2019/2022 environments including instance configuration, patch management, Always On Availability Groups, and failover cluster management.
Design and maintain PostgreSQL clusters including streaming replication, logical replication, and high-availability configurations (Patroni, pgBouncer, or equivalent).
Manage MySQL/MariaDB deployments including replication topology, InnoDB tuning, and connection pool optimization.
Administer Oracle Database environments including RAC, ASM, Data Guard standby configuration, and RMAN backup and recovery strategies.
Develop and enforce database standards for naming conventions, object ownership, RBAC, and audit logging across all relational platforms.
Architect and administer Apache Cassandra clusters including ring topology, compaction strategy tuning, multi-datacenter replication, and repair operations.
Manage MongoDB replica sets and sharded clusters including oplog monitoring, index optimization, aggregation pipeline performance, and schema validation.
Configure and maintain Redis deployments for caching, session management, and pub/sub patterns — including Sentinel and Redis Cluster for high availability.
Translate application data access patterns into optimal NoSQL schema designs, avoiding anti-patterns that degrade performance at scale.
Design, deploy, and manage cloud-managed database services including AWS RDS/Aurora, Azure SQL Database, Azure Cosmos DB, and Google Cloud Spanner as program requirements dictate.
Conduct proactive performance monitoring across all platforms using Query Store, pg_stat, OEM, CloudWatch, DataStax Metrics, or equivalent tooling.
Identify and resolve performance bottlenecks including slow queries, locking and blocking, index fragmentation, and resource contention.
Establish and maintain database capacity planning processes — forecast growth, monitor utilization trends, and recommend scaling actions proactively.
Administer NetApp ONTAP storage systems including volume management, aggregate configuration, SnapMirror and SnapVault replication, CIFS/NFS share management, and storage efficiency (deduplication, compression, tiering).
Manage HPE storage platforms including 3PAR/Primera, Nimble Storage, and Alletra — including virtual volume management, adaptive optimization, QoS policy configuration, and replication setup.
Configure and maintain SAN environments including Fibre Channel (FC) and iSCSI fabric management, HBA zoning, LUN provisioning, and multipathing (MPIO) configuration.
Manage NAS environments including NFS and CIFS/SMB protocol administration, export policy management, access control, and Active Directory integration.
Monitor storage performance and capacity across all platforms — track IOPS, throughput, latency, and utilization trends; identify and resolve bottlenecks before they impact workloads.
Administer storage virtualization environments including vSphere datastore management, VMDK/VMFS management, and storage vMotion operations.
Support storage procurement and capacity planning — evaluate new storage solutions, develop sizing recommendations, and contribute technical input to acquisition decisions.
Design and implement storage architectures that meet program performance, availability, and capacity requirements — including tiered storage strategies and workload placement decisions.
Define data classification and storage tier placement policies aligned with workload performance profiles and cost optimization objectives.
Architect and document storage network topologies including FC fabric design, SAN switch configuration, and storage network segmentation.
Integrate database storage requirements with storage platform capabilities — align database file layout, log placement, and tempdb configuration with underlying storage architecture.
Design, implement, and test comprehensive backup and recovery strategies across all database and storage platforms — including snapshot-based, replication-based, and backup-to-disk/tape approaches.
Define and validate RTO and RPO targets for all critical data systems; conduct periodic disaster recovery drills and document results.
Maintain backup integrity through regular restore testing; document and rehearse recovery runbooks for all critical systems.
Implement and enforce database and storage security standards aligned with NIST 800-53, DISA STIGs, CMMC, and program-specific data classification requirements.
Manage Transparent Data Encryption (TDE), column-level encryption, and key management across database platforms; enforce storage-level encryption for data at rest.
Configure and maintain audit logging, access monitoring, and anomaly detection for both database and storage systems.
Support ATO/RMF processes by providing technical evidence and control documentation for database and storage system controls to ISSO/ISSM.
Apply DISA STIGs to database platforms and storage management interfaces; manage finding categorization (CAT I/II/III), remediation, and POA&M documentation.
Serve as the technical escalation point for all database and storage-related incidents, performance issues, and architecture questions across the program.
Collaborate with systems engineers, DevSecOps teams, application developers, and network engineers on infrastructure integration requirements and data access patterns.
Contribute technical input to program architecture decisions that affect database or storage design — including server sizing, network topology, and virtualization platform selection.
Develop and maintain technical documentation including architecture diagrams, runbooks, configuration baselines, and standard operating procedures for all managed systems.
Provide knowledge transfer and mentoring to junior technical staff on database and storage administration best practices.