AQIB ANSARI

Software Engineer

Realtime Systems  •  Backend  •  Infra

“Talk is cheap, see the work.”

Projects

Live Quiz Platform

Live Quiz Platform

Realtime multiplayer quiz infrastructure

Live Demo
GroupiFy

GroupiFy

Scalable cohort group management

Live Demo
VideoStream

VideoStream

Serverless video transcoding pipeline

Source Code

Blogs

8 min

Scaling WebSockets to 2K Concurrent Users

How we architected Redis pub/sub with Socket.IO adapters to handle burst traffic during live quiz sessions.

Read Article
6 min

Why I Switched from Express to Bun

Performance benchmarks, developer experience, and the tradeoffs of adopting Bun as a primary server runtime.

Read Article
10 min

Designing a Priority Job Queue from Scratch

Building a Redis-backed task queue with retry policies, dead letter handling, and horizontal worker scaling.

Read Article

Technologies I Work With

Backend Infrastructure

Scalable backend architecture and data systems.

Node.js·Express·PostgreSQL·MongoDB·Docker·Linux

Realtime Systems

Low-latency communication and distributed state synchronization.

WebSockets·Socket.IO·Redis pub/sub·Distributed session state

Distributed Processing

Asynchronous pipelines and event-driven workloads.

SQS·Lambda·ECS·FFmpeg·Event-driven pipelines·Background processing

AI Systems

Retrieval and memory-based AI applications.

LangChain·Qdrant·Mem0·RAG pipelines·Vercel AI SDK

Cloud & Delivery

Deployment, caching, and global content delivery.

AWS·GCP·Cloudflare·Vercel·CDN caching·Signed cookies

Contact

Let's build
something together.

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