Job Title: MemSQL / Single Store - Senior Database DBA
Location: New Jersey / Irving, TX / Tampa, FL
Role Overview We are seeking a Senior MemSQL / SingleStore Cluster Administrator to own and manage mission-critical, large-scale distributed database platforms. This role requires a pure Database Administrator (DBA) with deep expertise in handling petabyte-scale data, complex distributed clusters, and real-time latency-sensitive workloads.
Core Technical Expectations
Experience handling petabytes of data ingested every 15 minutes in large-scale environments.
Strong expertise managing large MemSQL / SingleStore clusters (multi-node, multi-TB to multi-PB).
Deep understanding of data distribution across aggregators and leaf nodes.
Expertise in:
Partitioning and shard key strategy
Data skew mitigation
Hot partition resolution
Worker node and leaf node optimization
Strong table-level knowledge includes:
Index strategy
Thread management
Connection pooling
Memory limits
Query plan optimization
Strong understanding of different MemSQL/SingleStore versions and corresponding architectural/feature changes.
Key Responsibilities End-to-end ownership of large MemSQL/SingleStore clusters (design, build, upgrade, operate, decommission).
Architect and maintain High Availability (HA) and Disaster Recovery (DR) setups including:
Redundancy levels
Availability groups
Cross-region replication
Plan and execute:
Cluster expansion
Downsizing
Online partition rebalancing
Leaf node management with minimal/no downtime
Proactively monitor cluster health, throughput, latency, and capacity; define and maintain SLAs.
Perform advanced performance tuning:
Schema design
Shard key design
Index strategy
NUMA and memory tuning
Workload management
Implement backup/restore strategies and regularly test DR & failover.
Lead incident response and perform deep root cause analysis.
Enforce database security best practices:
Authentication & authorization
Encryption
Auditing
Network controls
Drive automation using scripting (Python/Bash) and Infrastructure as Code.
Maintain documentation, operational runbooks, and standards.
Evaluate new MemSQL/SingleStore features and lead version upgrades and migrations.
Required Experience & Skills 10+ years of total database engineering/administration experience.
4–5+ years of deep, production-grade experience administering MemSQL/SingleStore clusters at scale.
Strong hands‑on experience with:
Aggregators & leaf nodes
Licensing and memory limits
Cluster expansion & partition rebalancing
Replication & failover/failback
Proven ability to diagnose:
Locking issues
Data skew
Hot partitions
Bad execution plans
Strong Linux system tuning knowledge:
CPU/NUMA affinity
Disk & I/O optimization
Networking
ulimits & OS-level tuning
Experience with monitoring & alerting tools:
Prometheus / Grafana
Datadog
Splunk
ELK
Strong SQL expertise and scripting (Python/Bash).
Experience in Cloud/Container environments (AWS/Azure/GCP, Kubernetes) is highly preferred.
Excellent communication skills with ability to lead production calls and explain technical trade-offs clearly.
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Role Overview We are seeking a Senior MemSQL / SingleStore Cluster Administrator to own and manage mission-critical, large-scale distributed database platforms. This role requires a pure Database Administrator (DBA) with deep expertise in handling petabyte-scale data, complex distributed clusters, and real-time latency-sensitive workloads.
Core Technical Expectations
Experience handling petabytes of data ingested every 15 minutes in large-scale environments.
Strong expertise managing large MemSQL / SingleStore clusters (multi-node, multi-TB to multi-PB).
Deep understanding of data distribution across aggregators and leaf nodes.
Expertise in:
Partitioning and shard key strategy
Data skew mitigation
Hot partition resolution
Worker node and leaf node optimization
Strong table-level knowledge includes:
Index strategy
Thread management
Connection pooling
Memory limits
Query plan optimization
Strong understanding of different MemSQL/SingleStore versions and corresponding architectural/feature changes.
Key Responsibilities End-to-end ownership of large MemSQL/SingleStore clusters (design, build, upgrade, operate, decommission).
Architect and maintain High Availability (HA) and Disaster Recovery (DR) setups including:
Redundancy levels
Availability groups
Cross-region replication
Plan and execute:
Cluster expansion
Downsizing
Online partition rebalancing
Leaf node management with minimal/no downtime
Proactively monitor cluster health, throughput, latency, and capacity; define and maintain SLAs.
Perform advanced performance tuning:
Schema design
Shard key design
Index strategy
NUMA and memory tuning
Workload management
Implement backup/restore strategies and regularly test DR & failover.
Lead incident response and perform deep root cause analysis.
Enforce database security best practices:
Authentication & authorization
Encryption
Auditing
Network controls
Drive automation using scripting (Python/Bash) and Infrastructure as Code.
Maintain documentation, operational runbooks, and standards.
Evaluate new MemSQL/SingleStore features and lead version upgrades and migrations.
Required Experience & Skills 10+ years of total database engineering/administration experience.
4–5+ years of deep, production-grade experience administering MemSQL/SingleStore clusters at scale.
Strong hands‑on experience with:
Aggregators & leaf nodes
Licensing and memory limits
Cluster expansion & partition rebalancing
Replication & failover/failback
Proven ability to diagnose:
Locking issues
Data skew
Hot partitions
Bad execution plans
Strong Linux system tuning knowledge:
CPU/NUMA affinity
Disk & I/O optimization
Networking
ulimits & OS-level tuning
Experience with monitoring & alerting tools:
Prometheus / Grafana
Datadog
Splunk
ELK
Strong SQL expertise and scripting (Python/Bash).
Experience in Cloud/Container environments (AWS/Azure/GCP, Kubernetes) is highly preferred.
Excellent communication skills with ability to lead production calls and explain technical trade-offs clearly.
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