NexusHand

Services

Databases designed for the day something goes wrong

Schema design, query performance, migrations without downtime, and backups you've actually tested. PostgreSQL first; pragmatic about the rest.

Isometric illustration of a storage chip slotting into a cloud

Fit

Who this is for

Products hitting data pain

Queries that took milliseconds now take seconds; reports time out; nobody is quite sure which index does what. We find out, then fix it.

Teams designing for scale

You're building something data-heavy — inventory, ledgers, analytics — and want the schema right before millions of rows make it expensive to change.

Businesses that can't lose data

Orders, payments, member records. You need backups that restore, migrations that don't drop rows, and an audit trail you can stand behind.

Scope

What's included

Relational schema design

Normalized where it protects integrity, denormalized where it earns its keep — modeled around your domain, documented with an ERD.

Query optimization & indexing

EXPLAIN-driven tuning: the right indexes, rewritten hot queries, and honest numbers on the difference. Measured, not guessed.

Zero-downtime migrations

Expand-and-contract patterns, backfills in batches, and rollback plans — schema changes your users never notice.

Backup & recovery strategy

Automated backups with retention policy — and restore drills, because a backup you've never restored is a hope, not a strategy.

Caching layers

Redis where it genuinely helps — sessions, hot reads, queues — with invalidation rules that keep cache and truth aligned.

Audit trails & ledgers

Append-only movement logs for money and stock — the pattern behind our own inventory systems, where every change has a paper trail.

Reporting models

Read models and aggregates that make dashboards fast without slowing down the transactional core.

Approach

How we approach it

  1. 01

    The schema is the product's skeleton

    UI changes weekly; data models last a decade. We spend design time where mistakes are the most expensive to unwind.

  2. 02

    Integrity beats convenience

    Constraints, foreign keys, and transactions enforce the rules even when application code has a bad day.

  3. 03

    Measure before optimizing

    Real query plans on production-shaped data — not intuition. Then fix the top offender, measure again, repeat.

Tools

Stack we reach for

  • PostgreSQL
  • Prisma
  • Redis
  • MySQL (where it's already home)
  • pg_dump/PITR tooling

PostgreSQL first: it's what 700K+ orders across our platforms sit on.

Deliverables

What you get

  • An entity-relationship diagram and data dictionary
  • Before/after benchmarks for every optimization we ship
  • A migration runbook with rollback steps
  • Tested backup & restore procedure with documented RPO/RTO
  • A prioritized report of remaining risks and quick wins

Proof

700K+ orders across our platforms sit on schemas we designed — inventory ledgers, multi-tenant partitioning, audit trails.

Frequently asked questions

Tell us what you're building

A 30-minute call is enough to tell you honestly whether we're the right team for it — and what it will take.

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