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Hallmark Global Technologies Inc Logo
Lead Data Architect
Posted On: 3 days ago
Experience: 10+ years
Availability: Hybrid
Openings: 1
Category: Lead Data Architect
Tenure: Contract - Corp-to-Corp
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Description

Own the end-to-end data architecture for petabyte-scale, multi-region OLTP systems using Google Spanner and Alloy DB. This role is on-site.

Responsibilities

  • Design Spanner-native physical schemas, including primary key strategies, row key distribution, interleaving decisions, and secondary index strategies.
  • Define transaction boundaries under Spanner constraints, balancing single-partition versus multi-partition transactions and atomicity trade-offs.
  • Classify workloads by consistency tolerance, defining idempotency and retry-safe patterns for strong consistency versus bounded staleness.
  • Participate in workload replay analysis to diagnose hot key risks, transaction conflicts, and index amplification, sizing instances and estimating cost envelopes.
  • Act as final authority for Spanner data design decisions, mentoring domain architects and providing executive-level architectural rationale.

Required Skills

  • 10+ years in large-scale data architecture and modeling.
  • Deep expertise in Google Spanner internals, including TrueTime, distributed transactions, and synchronous replication.
  • Experience designing petabyte-scale, multi-region OLTP systems with a focus on high availability and low latency.
  • Strong understanding of distributed consistency models and failure modes in globally distributed databases.
  • Proficiency in defining Logical Canonical Data Models (LCDM) independent of physical storage.
  • Ability to validate CRUD contracts, query semantics, and transaction invariants with QA and platform teams.
  • Experience with schema compatibility scorecards and migration readiness sign-offs.

Preferred Skills

  • Prior Oracle to distributed database migration experience.
  • Experience with Alloy DB.

Education

Any Gradute

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