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PostgreSQL · QalbIT

PostgreSQL is not the point. The wait is.

We build with PostgreSQL for teams whose users are waiting too long: measured outcomes, written scope, and IP in your accounts.

Nobody asks for PostgreSQL. They ask why the dashboard takes four seconds and the form loses their input.

Typical before and afterApp type

Typical before and after
What users feelBefore · what we inheritAfter · PostgreSQL
Time to interactiveHow long before a user can do anything4.2s1.1s74% faster
Page transitionMoving between screens once loaded1.8sInstantNo reload
Form round-tripSubmitting and seeing the result2.4s0.3sOptimistic
Mobile bounce ratePeople who leave before it loads46%19%−27 pts

Medians across PostgreSQL rebuilds we have delivered · measured with Lighthouse and real-user data, before and after

48h

To a written scope

Week 1

Working prototype

Constraints

Enforced at the database, not the app

100%

Code and IP yours

Constraints enforced, not assumed. Migrations tracked in version control. Indexes matched to real queries. Backups tested, not just taken. Performance measured, not claimed

What we build with PostgreSQL


PostgreSQL data layers for products that cannot afford bad data.

We help founders and teams use PostgreSQL where it shines: real relationships between records, constraints the database enforces, and queries that stay fast as the data grows.

  1. Schema design & migrations

    Normalised schemas with the constraints and foreign keys that stop bad writes at the door, versioned in migrations.

  2. Multi-tenant data isolation

    Row-level security or schema-per-tenant, chosen deliberately rather than bolted on after a leak.

  3. Reporting & analytics queries

    Indexed, denormalised views for the reports that would otherwise bring a transactional table to its knees.

  4. Query performance tuning

    EXPLAIN-driven indexing and query rewrites for endpoints that have started timing out under real load.

  5. Migration from MySQL or a document store

    A schema and data migration off MySQL, MongoDB or Firestore, planned around the constraints PostgreSQL will finally enforce. Mapping a Mongo document to relational columns is easier once a JSON formatter for reading exported documents has untangled the nested export into something you can actually read.

  6. Geospatial data with PostGIS

    Location queries, radius search and mapping features backed by an index built for the job.

The PostgreSQL layer over the stack that carries it
PostgreSQL sits at the surface: the stack behind it matters just as much

How PostgreSQL projects run here


A practical PostgreSQL process, from audit to production.

We keep the PostgreSQL process structured but lightweight, so we can deliver a working build in real time without surprising you on quality, timeline or budget.

  1. Audit & architecture

    We read the existing schema or the requirements, then propose the data model, indexing strategy and migration path.

    Week 1

  2. Schema & indexing design

    Normalised tables and the indexes that match real query patterns: the decisions that stop a database rotting.

    Week 1–2

  3. Implementation & integration

    Write migrations, wire the ORM or query layer to the schema, and handle transactions and failure states properly.

    Sprint by sprint

  4. Testing, hardening & rollout

    Load-tested queries, backup and restore drills, then a staged migration with a rollback plan.

    Pre-launch

  5. Ongoing support & features

    A standing team continues to ship schema changes and keeps the database healthy.

    Post-launch

Where PostgreSQL earns its keep


PostgreSQL use cases we most often deliver.

Most of our PostgreSQL work sits behind a Node.js, NestJS or similar API layer, rather than being queried directly by a front end.

  • Billing and financial records

    Transactions and ledgers where a constraint violation is far cheaper than a silent data error.

  • Multi-tenant SaaS data

    Tenant, plan and usage records isolated cleanly enough to survive an audit.

  • Search, filtering and reporting

    Full-text search and indexed filters that stay fast as the table passes millions of rows.

  • Database rescue and tuning

    A slow, poorly indexed database stabilised without a full application rewrite.

The stack around PostgreSQL


The PostgreSQL stack we typically use at QalbIT.

We usually pair PostgreSQL with a typed ORM and a tested migration workflow, so the schema stays a deliberate decision rather than something that drifts.

  • Core

    • PostgreSQL
    • Prisma or Drizzle ORM
    • pgBouncer connection pooling
    • PostGIS where geospatial data applies
  • Query & schema tooling

    • EXPLAIN-driven index tuning
    • Row-level security
    • Materialised views
    • JSONB for semi-structured data
  • Access layer

    • REST & GraphQL
    • Zod validation
    • Typed query builders
    • Connection pooling
  • Operations

    • Automated backups
    • Point-in-time recovery
    • Query performance monitoring
    • Sentry or error tracking

We adapt to what you already run. If your team is on a different ORM or hosting provider, we work inside it rather than rewriting for preference.

PostgreSQL in production


Where PostgreSQL is the surface.

Same discipline on every build: constraints the database enforces, indexes that match real queries, and the client owning the code.

Start here


Hire PostgreSQL developers who will still be proud of the schema in year three.

Share your current schema, goals and the problems you want to solve. We will review your requirements, look at any existing database and propose a practical PostgreSQL plan that matches your stage and budget.

  • A written scope with the exclusions listed
  • A data model and indexing recommendation
  • The name of the engineer who would lead it
  • Free, and yours to keep either way

Get your free estimate

Three quick questions: scope, approach and a price range back within 48 hours. No sales call required first.

What do you need built?
When do you want to start?
Where should we send the estimate?

Answer all three questions above, then send.

NDA-friendly · IP yours from day one

FAQs · PostgreSQL


PostgreSQL development: frequently asked questions

Common questions about schema design, migrations and query performance, plus what happens after launch.

Ask us directly →
Products where the data has real relationships and integrity matters: billing, bookings, multi-tenant SaaS records, anything with financial or compliance consequences if a constraint gets skipped. If a spreadsheet or a loosely typed store is starting to produce inconsistent numbers, PostgreSQL is usually the right call.
Both. For an existing database we start with a short audit: slow queries, missing indexes, constraints that should exist but do not, and what a migration would cost to fix properly.
Node.js or NestJS most often, with an ORM such as Prisma or TypeORM in front of it, or a direct query layer where the team wants full control over what gets sent to the database.
A focused first release is usually six to ten weeks. A full product with integrations, billing and reporting runs ten to sixteen. You see a working schema and seed data in the first two weeks.
Yes. Most clients keep a small standing team for schema changes, index tuning and performance work, with 30 days notice to stop or scale down.
Backward-compatible migrations in small steps: add the new column or table first, backfill it, switch the application over, then remove the old structure once nothing references it. Nothing gets renamed or dropped in the same deploy that starts using it.
Send us the goal and any existing schema. You get a written scope, a schema or migration recommendation and a price range within 48 hours, free, and yours to keep either way.

Next step


Let’s plan your next PostgreSQL build.

New schema, migration or a slow query worth fixing: send it in two lines and get a written scope, timeline and price range within 48 hours.