Sirajum Munir
Sirajum Munir
Back to Systems Showcase
Cloud ArchitectureFeatured Case Study

Nexus Stream: High-Throughput Event Mesh

Distributed real-time event broker processing 180k msgs/sec with sub-5ms p99 latency across multi-region Kubernetes clusters.

Inspect Source CodeLive Production Instance
Nexus Stream: High-Throughput Event Mesh
The Engineering Challenge

Problem & Root Cause

Legacy monolithic message queues collapsed under bursty peak loads (>150k TPS), causing consumer lag of over 45 seconds and inconsistent ordering during node failover.

Architectural Solution

System Architecture Strategy

Engineered a partition-aware event distribution gateway with raft-backed consensus, zero-copy buffer pools in Go/Rust, and partitioned Kafka topic replication with automated backpressure telemetry.

Architectural Blueprint
Interactive Architecture Explorer

System Topology & Data Pipelines

Inspect real distributed blueprints. Select nodes to evaluate tier boundaries, consensus mechanisms, caching strategies, and failover topologies.

Nexus Stream Production TopologyClick any node to inspect protocols & failover architecture
Active Blueprint
Verified Protocols:gRPC / ProtobufHTTPS / RESTACID SerializationRaft Quorum
Node Architecture Deep-Dive

Edge Clients & IoT

Role: Event Producers

System Responsibility

Thousands of distributed telemetry agents pushing events over HTTP/3 & gRPC.

Engineered With

Next.jsMobile SDKgRPC-Web

Inter-Service Pipeline Links

Outbound Dispatches:
To: Envoy API GatewaygRPC
Core System Implementation

Detailed Architecture Overview

Edge ingest reverse proxies terminate TLS and route gRPC streaming traffic directly into memory-mapped ring buffers before multi-AZ persistence and push-based SSE/WebSocket delivery.

Critical Technical Highlights:

Zero-copy serialization with Protocol Buffers and custom ring-buffer queues
Dynamic backpressure propagation preventing downstream consumer starvation
Multi-tenant isolation with adaptive rate limiters and cryptographic token verification
Real-time observability export via Prometheus, OpenTelemetry, and Grafana dashboards

Personal Engineering Contribution:

Lead Architect: Designed core raft quorum protocol, implemented zero-copy ring buffers in Go, and oversaw live migration with 99.999% uptime.

Verified Production Metrics

  • Reduced p99 ingestion latency from 85ms to 4.2ms
  • Cut monthly cloud compute costs by 42% ($38,000/mo reduction)
  • Maintained zero message loss across 3 simulated region failure drills

Edge Cases & Lessons Learned

Handling TCP socket starvation required tuning Linux kernel epoll buffers and socket reuse flags (`SO_REUSEPORT`).

Applied Technologies & Tooling

Go / Golang(Backend)
Apache Kafka(Infrastructure)
Kubernetes (EKS)(DevOps)
gRPC & Protobuf(Networking)
Redis Cluster(Database)
OpenTelemetry(Observability)

Explore More System Blueprints

Full-Stack System

Aurora Core: Double-Entry Immutable Ledger

Financial transaction engine supporting strict ACID guarantees, cryptographic audit trails, and multi-currency exchange balancing.

View Case Study
DevOps & SRE

Chronos: Distributed Cron & Workflow Orchestration

Fault-tolerant cron scheduler executing over 1.2M automated batch jobs daily with exactly-once execution guarantees.

View Case Study