Zero downtime. Zero compromises.
Meraki Group handles zero-downtime database migrations â€" schema redesigns, engine switches, and query optimisation â€" so your users never notice the work happening underneath them.
What we deliver
Safe, verified, reversible migrations â€" handled from audit all the way through to post-cutover monitoring.
Cross-Engine Migrations
We handle MySQL-to-PostgreSQL, MongoDB-to-SQL, and the reverse â€" preserving every row, relationship, and constraint. No data loss. No surprises in production.
Zero-Downtime Execution
Using dual-write patterns and feature flags, your live application keeps serving users throughout the migration window. Cutovers happen in seconds, not hours.
Schema Audit & Redesign
Before touching a single record we audit your current schema for anti-patterns, missing indexes, and normalisation debt â€" then produce a redesign your team signs off on.
Query Optimisation
Slow queries are often the symptom of a schema problem, not just a missing index. We identify the root cause and rewrite queries alongside schema changes for lasting performance gains.
Sharding & Partitioning
When your dataset outgrows a single node, we design horizontal sharding or table-partitioning strategies that let PostgreSQL or MongoDB scale without an application rewrite.
Rollback & Recovery Plans
Every migration we run ships with a documented rollback procedure tested in staging. If anything deviates from plan, we can undo the cutover in under five minutes.
How we work
A four-phase methodology built around validation at every step â€" because data migrations have no margin for error.
Schema Audit
We connect to your current database (read-only) and produce a full schema analysis: table sizes, query plans, missing indexes, foreign key violations, and any data quality issues that would block migration.
Migration Plan
You receive a written migration plan with every phase sequenced, estimated data volumes, expected downtime (usually zero), and a risk register. No work begins until you approve the plan.
Dual-Write Validation
We run the new schema in parallel alongside the old one, routing writes to both and running automated reconciliation checks. Divergences are caught and resolved before cutover.
Cutover & Rollback
Cutover is a controlled switch behind a feature flag. We monitor for 24 hours post-cutover and keep the legacy schema live for a further 72 hours as a rollback safety net.
Tech stack
This is right for you if…
Companies carrying a legacy schema inherited from an early MVP â€" one that now slows every feature and causes weekly on-call incidents.
Teams switching database engines (e.g. MongoDB to PostgreSQL) and needing a partner who has done it at scale without taking the app offline.
Businesses whose query times have crept up quarter-by-quarter and are now directly causing user drop-off or SLA breaches.
Your data deserves a safer home.
Share your schema and migration goals and we will send back a concrete plan within 48 hours.
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