Fix API Performance Issues — Without Re-launching Your Site
Server-side bottlenecks profiled and removed
What you're seeing
p95 latency on your hot endpoints is over a second and tail latency keeps climbing.
Our approach
We profile the route, fix N+1 queries, add caching where it's safe, and re-architect the worst paths. p95 lands under 200ms.
Symptoms teams come to us with
- p95 latency on hot endpoints is over a second
- A handful of slow queries dominate database CPU
- Services OOM or peg CPU and "fix" means a restart cron
- Traffic spikes cause 5xx errors or cascading timeouts
What we check first
- 01N+1 queries, missing indexes and unbounded result sets
- 02Blocking I/O and synchronous hot paths on the event loop
- 03Leaking caches, closures and listeners growing memory
- 04Cache, connection-pool and scaling configuration gaps
What you get
Concrete deliverables, no fluff
Every engagement ends with measurable, documented outcomes — no black-box agency reports.
Profiling report with the top 5 bottlenecks
Implementation of fixes + benchmarks
Alerts wired to your existing monitoring
Capacity-planning notes for the next 12 months
From brief to shipped fix
A transparent, low-risk process — a senior engineer reads your brief personally, and nothing starts until you approve a written plan and price.
Diagnose
A senior engineer reviews your brief, reproduces the issue, and pinpoints the real root cause — not the symptom — before any code is touched.
Scoped plan & quote
You get a written plan to fix API Performance Issues, a firm timeline, and a fixed quote. Nothing starts until you approve it — no surprise invoices.
Ship the fix
We implement on a branch and open a pull request you review, working to your code-review standards on your repo — never a black box.
Verify & hand off
We verify on staging and production, share before/after evidence where it applies, and leave you a short hand-off note so the fix sticks.
Why teams hand this task to Krapton
Senior engineers only
Your brief is read and handled by a senior engineer — no junior hand-off, no sales-rep filter in between.
Root cause, not a patch
We reproduce and fix the underlying cause, then add a guard so the same class of issue does not quietly return.
Your repo, your standards
Every change lands as a pull request you review, on your repository, following your existing review process.
NDA on day one
Confidentiality and IP are covered before we look at a single line of code. All work stays in your accounts.
Fixed quote up front
You approve a written plan and price before work starts. If scope changes, we re-quote in writing — no surprise invoices.
Proof, where it applies
Performance, SEO and reliability work ships with before/after evidence so the result is measurable, not anecdotal.
Three ways to engage
No retainer required. Pick the model that matches the work — pricing for this task starts from $2,000, with a fixed quote before anything starts.
Per task
Most popularOne clearly-scoped fix at a fixed price. Best when you know exactly what is broken and want it handled end to end.
- Fixed quote up front
- One PR, reviewed by you
- No retainer required
Hourly
Pay only for the hours worked. Best for diagnostics, audits, or exploratory work where the scope is still emerging.
- Weekly timesheets
- Pay for what you use
- No minimum commitment
Per sprint
A focused 1–2 week sprint when the work is bigger than one fix but smaller than a full project.
- 1–2 week blocks
- Clear sprint goal
- Scale up or stop anytime
Tooling we use
Industry-standard stack, no proprietary lock-in
Fix API Performance Issues — your questions, answered
How much does it cost to fix API Performance Issues?
Pricing starts from $2,000 and depends on the scope we find during the diagnostic. You get a fixed, written quote before any work begins — most engagements like this run 1–3 weeks.
How long does it take to fix API Performance Issues?
Typically 1–3 weeks for a focused engagement. After a short diagnostic we commit to a firm timeline so you know exactly what to expect.
Will you work directly on our existing codebase?
Yes. We work on your GitHub, GitLab or Bitbucket, ship every change as a pull request you review, and follow your code-review standards — not ours.
What exactly will I have at the end?
Concrete, documented outcomes — Profiling report with the top 5 bottlenecks, Implementation of fixes + benchmarks, Alerts wired to your existing monitoring, and more. No black-box agency report.
How quickly can you start, and do you sign an NDA?
For a focused task like this we can usually start within 24–48 hours of the brief. We sign an NDA on day one, before we look at any code — yours or ours.
Will you add monitoring so the problem does not come back?
Yes. Every backend engagement ends with alerts wired into your existing monitoring (or a lightweight setup if you have none) so the same bottleneck is caught early next time, not in production.
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Let's get this off your plate
Send a 60-second brief on Fix API Performance Issues and a senior engineer replies within 24 hours with a plan and a fixed quote. NDA on day one, no retainer required.