High-Throughput REST & GraphQL API Engineering for US Platforms
Power your mobile apps, partner integrations, and internal systems with ultra-fast, secure APIs. Mr Umer Malik engineers production-grade RESTful and GraphQL APIs in Go, Node.js, and modern PHP—designed for high-concurrency scaling, rate-limited security, and full OpenAPI documentation for US tech companies.
Core Capabilities & Production Deliverables
Direct architectural execution by senior engineer Mr Umer Malik with zero agency dilution.
High-Concurrency Golang & Node.js Endpoints
Lightweight compiled endpoints processing thousands of concurrent requests per second with sub-50ms execution times.
Type-Safe GraphQL Schemas
Flexible, self-documenting GraphQL schemas preventing over-fetching and giving frontend teams exact query control.
OAuth2, JWT & API Key Governance
Role-based authentication, granular token scope validation, and automated API key rotation protecting confidential endpoints.
Redis Caching & Tiered Rate Limiting
Token bucket and leaky bucket rate limiting preventing DDoS attacks and brute-force abuse while ensuring high availability.
Interactive OpenAPI / Swagger Documentation
Comprehensive, live interactive documentation allowing internal developers and third-party partners to integrate seamlessly.
Automated Unit & Integration Test Suites
Automated CI/CD test coverage verifying schema validation, response codes, and database transactions on every commit.
Why US Tech Teams Hire Umer for APIs
Clean, scalable backend APIs built by a senior engineer without agency overhead.
Sub-50ms API Latencies
Compiled code and optimized database queries deliver instant responses under heavy traffic spikes.
Enterprise-Grade Security Hardening
Zero-trust authentication, automated input sanitization, and SQL injection prevention.
Fixed USD Milestone Contracts
Transparent pricing per endpoint module with Delaware mutual NDA and 100% IP transfer.
Synchronized US Daytime Collaboration
Real-time Slack collaboration and API design alignment during your working hours.
Phased Delivery Roadmap & How This Project Runs
Structured from initial discovery call to production deployment and 100% intellectual property transfer.
Phase 01: API Contract & Data Model Design
Defining OpenAPI/Swagger specs, authentication models, and fixed pricing milestones in USD.
Phase 02: Core Endpoint & Database Engineering
Writing high-throughput endpoints in Go or Node with unit test coverage on staging.
Phase 03: Rate Limiting & Integration Testing
Configuring Redis rate limiters, caching layers, and third-party webhook integrations.
Phase 04: Production Deployment & Documentation Handover
AWS deployment, load testing verification, full Swagger docs handover, and 30-day warranty.
US Founder Frequently Asked Questions
Clear answers on US business hours alignment, USD milestone billing, and Delaware mutual NDA protection.
Which backend languages do you use for API development? ▼
Do you provide interactive API documentation for our frontend team? ▼
How do you handle API security and rate limiting? ▼
Can you integrate our API with third-party platforms like Stripe or Twilio? ▼
How do you ensure zero breaking changes when updating APIs? ▼
Who owns the source code and API documentation? ▼
Great dreams deserve craftsmanship, not compromises. Let’s build yours.
US METROS & STATES ACTIVELY SERVED
© 2026 UMER XPERT. SERVING THE UNITED STATES — COAST TO COAST. All rights reserved. Contracts executed under Delaware mutual NDA.