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Fiverr Pro
Nederlands
$
USD
I will build high performance golang backend rest API with postgresql
Qamar Ul Islam
Over deze dienst
Need an ultra-fast Golang backend that scales without high server costs?
Many Go APIs use slow, reflection-heavy ORMs or naive goroutines that crash and drop jobs on restart. I build production-grade Go backends with clean architecture, compile-time type safety, and database-level optimization.
Level 2 Seller | 50+ projects | 4.8 | ~70k+ LOC SaaS systems.
️ My Go Stack:
Architecture: Clean Go (Handler Service Repository) or DDD
Database: PostgreSQL with pgx v5 + sqlc (type-safe SQL, zero reflection)
Migrations: Goose version-controlled schema
Workers: Asynq + Redis queues with retries & dead-letter queues
Real-Time: WebSockets & Server-Sent Events
Security: JWT, RBAC, multi-tenant isolation
DevOps: Multi-stage Docker builds + docker-compose
Every Order Includes:
Clean, idiomatic Go source code
Swagger / OpenAPI docs
Unit & integration tests (testing / httptest)
Health checks (/healthz, /readyz) + structured logging
Docker ready for AWS, GCP, DigitalOcean, or VPS
Send me your specs and let's architect a backend that scales!
Maak kennis met Qamar Ul Islam
Qamar Ul Islam
Senior Backend and AI Systems Engineer: Go, Python, Nextjs
- Afkomstig uitPakistan
- Lid sindsmei 2023
- Laatste levering8 maanden
Talen
Urdu, Engels
Hi, I'm Qamar! 👋
Senior Backend & Applied AI Engineer with 50+ completed orders & 4.8★ rating on Fiverr.
🚀 Core Expertise:
• AI & RAG Systems: Custom Pinecone/LangChain chatbots, MCP servers, and LLM integrations
• High-Performance Backends: Scalable Go (Golang), Python (FastAPI), and NestJS APIs
• Databases & Cloud: PostgreSQL, MongoDB, Redis, Docker, and multi-tenant architectures
• Full-Stack Web: Next.js, React, Stripe billing, and modern SaaS solutions
Clean code, fast delivery, and clear communication. Let's build your vision! 📩
Mijn portfolio
Andere Software development diensten die ik aanbied
Veelgestelde vragen
Why do you prioritize sqlc and pgx over GORM?
GORM relies heavily on runtime reflection and hides raw query execution, which often leads to slow N+1 query traps. sqlc compiles type-safe Go structs directly from your raw SQL queries, giving you native C-like PostgreSQL speed and compile-time safety.
How do you handle background processing and webhooks?
Unlike competitors who spawn raw in-memory goroutines (which lose data during server restarts), I implement Asynq backed by Redis. This guarantees task durability, configurable concurrency, and automatic retries.
Can you handle database schema migrations safely?
Yes. I integrate Goose migrations into the repository so your database schema can roll forward or rollback safely in CI/CD without manual SQL script execution.
Do you provide API documentation for my frontend team?
Yes! Standard and Premium packages include auto-generated Swagger / OpenAPI 3.0 documentation and Postman collections for instant frontend integration.
Can you integrate third-party APIs and payment processors?
Absolutely. I frequently integrate Stripe payments, Twilio VoIP/SMS, SendGrid email services, and external REST APIs with robust error handling and timeout protection.
