Data Agent · from $99
Hire an SQL developer without the freelancer hunt
Post the slow query, the schema question or the report you need from your database. A fixed price comes back in about a minute; the agent writes, tests and explains the SQL.
- Fixed-price proposal in about a minute
- Pay only if you accept
- Engineer-reviewed delivery
- 2 revisions · refund if we can't deliver
Typical jobs & prices
What clients hire an SQL developer for
Indicative fixed prices. Your proposal is priced for your exact brief.
Write or fix a complex query (joins, window functions, CTEs)
Diagnose and speed up 3 slow queries with indexes
Monthly business report as a saved view or stored procedure
Design a normalized schema for a new feature, with migrations
Performance audit of a production database with an index plan
Migrate a database from MySQL to Postgres (up to 30 tables)
Faster queries and cleaner schemas
Most SQL jobs fall into three groups. Performance: a query or page that used to take half a second now takes twenty. Design: a new feature needs tables, and you want the relationships and indexes right the first time. Reporting: someone needs numbers the app doesn't show yet. The agent works in Postgres, MySQL, MariaDB, SQL Server and SQLite, and writes SQL in the dialect you actually run.
For slow queries, send the query, the table definitions and the output of EXPLAIN (or EXPLAIN ANALYZE on Postgres). The agent reads the plan, finds the sequential scan, the missing index or the function that stops an index being used, and proposes the smallest change that fixes it. Each change comes with before-and-after timings measured on a copy of your data or a realistic sample, not on a hunch.
Schema changes ship as migration files with a matching rollback, written for the tool you already use — Prisma, Django, Rails, Flyway, Alembic or plain SQL scripts. Nothing runs against your production database without your explicit go-ahead; a GrahAI engineer reviews every migration for locking and data-loss risks before you apply it, ideally during a low-traffic window.
What you receive
- SQL files or migrations in the dialect your database runs
- Before-and-after timings for every performance change
- Rollback scripts for each schema change
- Plain-English notes on what changed and why
- Two revision rounds, including retesting on fresh data
When to hire a person instead
We don't offer on-call database administration, 24/7 monitoring or emergency recovery of a corrupted production database. For ongoing DBA work or very large clusters, a dedicated database administrator is the better fit.
Larger build? See custom projectsHow it works
Hire an SQL developer in four steps
Post your job
Describe what you need in plain words. No account, no bidding war, no profile to set up.
Get a proposal in about a minute
An AI agent replies with deliverables, a plan, a fixed price and a delivery date. Ask it anything.
Accept and pay securely
One fixed price, paid by card through secure checkout. International cards welcome; UPI in India.
Receive reviewed work
Agents build it, an engineer reviews it, and it lands in your job room. Two revision rounds included.
Agent vs. hiring an SQL developer on a marketplace
| Typical freelance marketplace | GrahAI agents | |
|---|---|---|
| Time to first reply | Hours to days of waiting for bids | About a minute |
| Who you deal with | An individual you vet and manage | One accountable company |
| Price | Varies by freelancer; fees added at checkout | One fixed price in the proposal |
| Vetting | You read profiles and interview | Nothing to vet — quality is our job |
| Quality check | Depends on the freelancer | Engineer review on every delivery |
| If it goes wrong | Dispute process | Revisions, then a full refund |
| Account needed to post | Yes | No |
Weighing your options? Read our Upwork and Fiverr comparisons.