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Senior MongoDB Database Administrator - 85140
Senior MongoDB Database Administrator - 85140S.i. Systems • Toronto
Senior MongoDB Database Administrator - 85140

Senior MongoDB Database Administrator - 85140

S.i. Systems • Toronto
10 days ago
Job type
  • Full-time
Job description

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 compatibility versions (FCV), patching cadence, maintenance windows.

Ansible Automation (IaC for Databases)

  • Build idempotent Ansible roles and collections-based playbooks for provisioning :
  • OS hardening, users, packages, ulimits, sysctl
  • MongoDB install, config (mongod.conf), TLS, replica sets, config servers, mongos, sharding
  • User creation (app / admin), roles, indexes, parameters
  • Rolling upgrades and patching
  • Drift detection & remediation, config guardrails, and change safety (serial / rolling strategies, pre-checks, post-verify).
  • Collaboration & Governance

  • Partner with App teams for data modeling reviews and performance tuning.
  • Define standards, runbooks, and design docs; conduct readiness and DR tests.
  • Ensure compliance with security frameworks (SOC2 / ISO / PCI / HIPAA as applicable).
  • Must Have Requirements :

  • 5+ years administering MongoDB in production at scale (replica sets and sharded clusters).
  • 3+ years with Ansible (roles, collections, Molecule tests, CI / CD).
  • Strong Linux (RHEL / Ubuntu), networking, storage, and TLS / PKI fundamentals.
  • Scripting : Bash and / or Python for glue / ops tooling.
  • Nice To Haves :

  • MongoDB Certified DBA / Developer; Red Hat Ansible or equivalent.
  • Ops Manager, MongoDB Atlas administration at scale.
  • Compliance-driven environments; performance engineering experience.
  • Education :

  • Post Secondary
  • Interviews :

  • 1 round - with HM via MS Team 30 minutes
  • Create a job alert for this search

    Senior MongoDB Database Administrator 85140 • Toronto

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