You will get I will fix slow Node.js APIs and optimize backend performance
Project details
Is your Node.js API slow, crashing under load, or consuming too much CPU?
I help startups and SaaS teams identify performance bottlenecks and optimize Node.js / NestJS backends for speed and scalability.
Common problems I solve:
• Slow API response times
• High CPU or memory usage
• Database query bottlenecks
• Inefficient async workflows
• Node.js memory leaks
• Backend systems that don't scale
Technologies I work with:
Node.js
NestJS
Redis
PostgreSQL
MongoDB
RabbitMQ
AWS
Goal: Faster APIs, lower server costs, and a backend ready for real-world traffic.
Send me a message before ordering so I can quickly review your backend and recommend the best approach.
I help startups and SaaS teams identify performance bottlenecks and optimize Node.js / NestJS backends for speed and scalability.
Common problems I solve:
• Slow API response times
• High CPU or memory usage
• Database query bottlenecks
• Inefficient async workflows
• Node.js memory leaks
• Backend systems that don't scale
Technologies I work with:
Node.js
NestJS
Redis
PostgreSQL
MongoDB
RabbitMQ
AWS
Goal: Faster APIs, lower server costs, and a backend ready for real-world traffic.
Send me a message before ordering so I can quickly review your backend and recommend the best approach.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$150
|
Standard
$400
|
Advanced
$900
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 0 | 1 | 2 |
Number of Pages | 0 | ||
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $300
Additional Revision
+$50Frequently asked questions
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FE
Firat E.
Apr 21, 2025
Node.JS Software Engineer (Full-Time)
About Uttam
Senior Node.js Backend Engineer | Microservices | Event-Driven Systems
Noida, India - 3:48 am local time
I design and build backend systems for SaaS and logistics platforms that need to handle real production load: event-driven microservices, async job pipelines, and APIs that stay fast and reliable as traffic grows.
Over 8 years, I've cut API latency 30-40% and improved deployment reliability across four production systems by redesigning caching layers, async job pipelines (RabbitMQ, BullMQ), and CI/CD. I work fluently with Kafka, RabbitMQ, and AWS at production scale, and I use AI-assisted workflows (Cursor, Claude Code) to move faster without cutting corners on code quality or review rigor.
Recent work includes:
• DLX (Scitara) – secure backend APIs and a new schema-metadata service for scientific workflow integration
• Supply Match – distributed backend for real-time shipment matching using asynchronous processing
• Rize – real-time chat service (Socket IO) for a gaming platform, with a 40% API latency reduction via caching and background jobs
• Home Inspector Tech – WebSocket-based real-time communication layer with Redis-backed state
• Botevo – REST API integration for industrial IoT hardware/software, delivered on a fixed 3-week timeline
I also bring hands-on fintech/payments experience: end-to-end Stripe and Razorpay integrations, including webhook reconciliation and idempotent transaction handling to prevent duplicate charges.
Where I help clients most:
• Designing event-driven microservices architecture (RabbitMQ, Kafka, CQRS)
• Building and hardening REST/GraphQL APIs
• Performance optimization – caching, query tuning, async processing
• AWS infrastructure (Lambda, ECS, S3), Docker, Kubernetes, Terraform, CI/CD
• Auth & security (JWT, OAuth2, RBAC, rate limiting, API gateways)
Tech stack: Node.js, NestJS, TypeScript, Express, GraphQL, gRPC, Redis, PostgreSQL, MongoDB, RabbitMQ, Kafka, AWS, Docker, Kubernetes, Terraform.
I work well in fully remote, async-first teams – 4+ years of documentation-driven development, PR-based workflows, and cross-timezone collaboration. If you're scaling a backend, untangling a slow API, or need a senior engineer who can own a service end-to-end, let's talk.
Steps for completing your project
After purchasing the project, send requirements so Uttam can start the project.
Delivery time starts when Uttam receives requirements from you.
Uttam works on your project following the steps below.
Revisions may occur after the delivery date.
Initial Audit & Code Review
Analyze current codebase, infrastructure, and performance reports. Identify CPU/memory-heavy operations, DB inefficiencies, or blocking I/O
Bottleneck Detection
Use profiling tools (like Chrome DevTools, Prometheus, or APMs) to pinpoint slow endpoints, loops, or memory leaks.