Database optimization, on demand
Rent a senior database engineer for exactly as long as you need one. We find the slow queries, fix the indexes and schema, and keep your PostgreSQL, MySQL, SQL Server or MongoDB fast as you grow.
EXPLAIN ANALYZE SELECT … FROM orders WHERE customer_id = $1 ORDER BY created_at DESC;
eventsSound familiar?
01Fine in staging, slow on Monday morning. The query planner made a different choice with real data.
02You scaled the instance up twice. The real problem was a missing index and a chatty ORM.
03A column change locks a 200 GB table, so nobody wants to touch the schema anymore.
04Connection storms, replica lag, a full disk. Your backend team is learning database internals the hard way.
Services
Start with an audit, keep a DBA on your team, or let us watch performance month after month. Most clients combine all three.
Step in · 2 weeks
We review your slowest queries, indexes, schema, configuration and hosting. You get a ranked action plan with the estimated gain of each fix, and we can apply the quick wins right away.
Stay · monthly
A senior database engineer joins your team for a set number of days each month. They review migrations, tune queries, plan capacity and are on your Slack, for much less than a full-time hire.
Run · subscription
We plug into your monitoring, watch query performance every week and fix regressions before your users notice. Each month you get a short report with the trends that matter.
Process
You tell us what hurts. We tell you honestly if we can help and which offer fits.
NDA signed, a read-only role or a replica. We collect statistics and query logs, and never write to production without your approval.
Every finding is ranked by impact and effort. You see the gain before you spend engineering time on it.
We ship the fixes with your team, measure before and after, then stay on for as long as it is useful.
Engines and platforms
We also review the ORM side: Prisma, Django, Rails, Hibernate, Entity Framework. That's often where the N+1 queries come from.
Why Render Data
Hiring a full-time DBA takes months and costs a full salary. Most teams need a few days a month of real expertise. That's what we rent out.
Every change comes with a before and after on your own workload: latency, load, and cost.
Read-only first, changes through your pull requests, rollback plan for every migration.
Your engineers learn why a fix works, so the next slow query gets caught in code review.
Monthly engagements, everything documented in your repo. Stop whenever you want.
Plans
Fixed quote after the discovery call. No surprises on the invoice.
Audit
One-off · fixed fee
Fractional DBA
Monthly · 2 / 4 / 8 days
Continuous
Monthly subscription
FAQ
No. We start with a read-only role or a replica. Any change, such as an index or a config tweak, goes through your normal review process or is applied with you, on a schedule you choose.
You rent a capacity, not a person who may disappear. Your days per month are guaranteed, knowledge is documented in your repository, and we cover holidays and incidents.
Yes. Move between 2, 4 and 8 days with one month's notice, or add extra days for a migration or a launch.
Yes, most of our work happens on managed platforms. We tune the parameter groups, instance sizing and storage, and often reduce the bill along the way.
We're based in Europe and work in English and French. We overlap with US East Coast business hours.
Contact
Send us a few lines about your stack and what hurts. We reply within one business day with times for a free 30-minute discovery call.