
Building a High-Performance Communications Gateway with Go and Azure Functions
How I achieved sub-millisecond latency and 80% bandwidth reduction using a custom Go handler on Azure Functions.
Nov 24, 2025Building high-performance distributed systems with sub-millisecond latency. I architect event-driven serverless solutions across AWS and Azure, specializing in Go, Python, and multi-tenant platforms. Expert in performance optimization, real-time systems, and pragmatic cloud architecture.
const architect = new Rommel();
architect.optimize('Infrastructure');
architect.scale('Global');
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Technical Arsenal
AWS (Lambda, SQS, EventBridge, SNS), Azure (Functions, Cosmos DB, Event Grid, Service Bus, Logic Apps)
Go (Golang), Python (FastAPI), NestJS, Node.js, Microservices, gRPC
TypeScript, React, GraphQL (PostGraphile), WebAuthn, Monorepos
PostgreSQL (RLS, LISTEN/NOTIFY), MongoDB, Cosmos DB, Redis
Event Grid, Service Bus, SQS, EventBridge, Pub/Sub patterns, Idempotency
Binary optimization (UPX), Middleware patterns, API Security, Dynamic CORS
Go-based Azure Function with custom handler pattern. Implements 9-layer middleware stack achieving sub-millisecond overhead. Hybrid cloud architecture using Azure for compute and AWS for delivery.
Serverless delayed notification architecture using Azure Event Grid, Service Bus scheduled messages, and Logic Apps. Eliminated expensive polling with event-driven design.
Pragmatic multi-tenancy migration with dynamic CORS and request-scoped configuration. MongoDB-based tenant config without Redis overhead. Supports hybrid cloud deployments.
NestJS-powered workflow engine with versioning support. Dual database strategy: PostgreSQL for relational data, MongoDB for workflow snapshots. RESTful API with Swagger docs.
PostgreSQL-based concurrency control with Row Level Security. GraphQL subscriptions for real-time updates. Heartbeat mechanism prevents zombie locks in collaborative apps.
Sub-50ms response times using Azure Functions and Cosmos DB point reads. Connection reuse and lean payload optimization for extreme performance.

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