You will get a database schema design and query optimization for high-traffic apps
Project details
I'll fix your database performance—from schema design to composite indexing to query rewrites—using the same techniques that cut response times by 10–30% on production systems serving millions of users.
Scope of work:
• Schema review and performance-oriented redesign (MySQL or PostgreSQL)
• Composite indexing strategies tailored for high-traffic queries
• Slow query analysis, execution plan profiling, and SQL rewrites
• Atomic transaction design and isolation level configuration
• Production-safe migration scripts (Standard & Premium)
• Comprehensive written report detailing changes and impact
I applied these optimizations on the highest-traffic endpoints of a platform with 1M+ users. The improvements were measured and verified in production.
Basic : Database schema audit, index review, and actionable written recommendations.
Standard : Full relational schema redesign + indexing implementation + slow query refactoring.
Premium : Everything + multi-table atomic transactions + versioned migration scripts.
*Pure backend/database engineering; no frontend UI included.
Share your schema layout and I'll review it before you commit!
Scope of work:
• Schema review and performance-oriented redesign (MySQL or PostgreSQL)
• Composite indexing strategies tailored for high-traffic queries
• Slow query analysis, execution plan profiling, and SQL rewrites
• Atomic transaction design and isolation level configuration
• Production-safe migration scripts (Standard & Premium)
• Comprehensive written report detailing changes and impact
I applied these optimizations on the highest-traffic endpoints of a platform with 1M+ users. The improvements were measured and verified in production.
Basic : Database schema audit, index review, and actionable written recommendations.
Standard : Full relational schema redesign + indexing implementation + slow query refactoring.
Premium : Everything + multi-table atomic transactions + versioned migration scripts.
*Pure backend/database engineering; no frontend UI included.
Share your schema layout and I'll review it before you commit!
Database Type
MySQL, SQLite, PostgreSQL, MongoDBWhat's included
| Service Tiers |
Starter
$49
|
Standard
$99
|
Advanced
$199
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 4 days |
Number of Revisions | 1 | 1 | 2 |
Number of Queries | 3 | 10 | 20 |
Query Debugging | |||
Query Optimization | - | ||
Query Scheduling | - | - | |
Query Analysis | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$19 - $59
Database Connection Pooling Setup
(+ 1 Day)
+$39
Cross-Database Migration Scripting
+$79
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NM
Noor Mohammed M.
Jun 20, 2026
Full stack web
Ahsan delivered a high-quality full-stack application very quickly with excellent communication and clear understanding of requirements. Highly recommended.
About Ahsan
Senior Backend Engineer | Node.js | API Design & Payment Integrations
Sylhet, Bangladesh - 6:43 am local time
with a high-traffic backend that is slowing down under real load?
I am a Senior Backend and Full-Stack Engineer specializing in production-grade
Node.js and Next.js systems. Over the past two years, I have engineered
multi-tenant architectures for software platforms serving 1,000,000+ students
across 7,000+ institutions — handling $100,000+ in monthly revenue at 99.9%
uptime.
When you hire me, you are not hiring someone to write code. You are hiring an
engineer focused on business outcomes, data integrity, and cost efficiency.
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WHAT I DO BEST
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▸ Payment & Billing Infrastructure
Unified processing layers across Stripe, Paddle, and Xendit — with
fail-safe webhook architecture that eliminates double-charging and
partial-write data corruption.
▸ Database Optimization
I rescue slow APIs. Through composite indexing, query rewrites, and
schema redesign, I consistently reduce MySQL response times by 10–30%
on the highest-traffic production endpoints.
▸ SaaS & Multi-Tenant Architecture
Secure Role-Based Access Control, real-time connection-pooled services,
and multi-tenant systems designed for scale from day one.
▸ Cloud Cost Optimization
Migrated transactional email infrastructure to AWS SES and moved asset
storage to AWS S3 — reclaiming 14+ GB of production database storage
and cutting ongoing vendor costs.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
PRODUCTION METRICS
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✔ $100,000+ monthly revenue handled at 99.9% uptime
✔ 1,000,000+ users across 7,000+ institutions on a single platform
✔ 14+ GB of database storage reclaimed via S3 migration
✔ Real-time services stabilized under thousands of concurrent connections
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CORE STACK
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Backend → Node.js, Adonis.js, Django, REST API, Webhooks, Redis
Frontend → React.js, Next.js, Redux, TypeScript
Database → MySQL (Atomic Transactions, Composite Indexing), Redis
Cloud → AWS SES, AWS S3, Docker, Linux
Other → Codeforces Specialist (1400+ rating) — strong algorithmic
problem-solving background
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If you need an engineer who takes full ownership of your backend, understands
real-world scalability, and ships systems that survive production traffic —
let's talk.
Steps for completing your project
After purchasing the project, send requirements so Ahsan can start the project.
Delivery time starts when Ahsan receives requirements from you.
Ahsan works on your project following the steps below.
Revisions may occur after the delivery date.
Database Profiling & Execution Analysis
I analyze your current SQL schema definitions, inspect existing database constraint configurations, and run execution plans (EXPLAIN ANALYZE) on your slowest queries to locate structural bottlenecks.
Relational Schema & Indexing Redesign
I map out a refined relational schema structure and implement a precise composite indexing strategy, targeting query filtering (WHERE), ordering (ORDER BY), and join performance.