Contract

Senior MongoDB Database Administrator - 85140

Posted by S.i. Systems • Toronto, Ontario, Canada

📍 Toronto, Ontario 🕒 February 18, 2026

About the Role

Position Title: MongoDB Engineering Standards Specialist

Duration: Contract until Oct 31, (possible extension)

Location: Downtown Toronto or Scarborough (2-3 days onsite)

Responsibilities:

MongoDB Engineering Standards

  • Design replica set and sharded cluster topologies tailored to workload (R/W patterns, data growth, latency, multi-AZ/region).
  • Schema and index design aligned with document modeling patterns (subdocuments, bucketization, extended reference, outlier pattern).
  • Capacity planning (IOPS/CPU/RAM/Storage), performance tuning (indexes, query plans, connection pools, WT cache).
  • Backup/restore strategy design
  • Security hardening: RBAC, client certs/TLS, encryption-at-rest (KMIP/KMS), auditing, least-privilege, IP allowlists/NSGs, CIS benchmarks.
  • Observability: metrics, logs, and tracing integrations (MongoDB exporters/agents).
  • Release management & lifecycle: rolling upgrades, feature compatibili...
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