--- title: "Abu Bakkar Siddique (@ashraful2502) | Hashnode" description: "Full-Stack Developer focused on backend engineering, distributed systems, and AI" url: "https://hashnode.com/@ashraful2502" --- @ashraful2502 # Abu Bakkar Siddique @ashraful2502 · Bengaluru, India · Joined July 2026 ### [From 1 Submission to 50+: The Journey of Building LaunchNests in Public](https://solodevabu.hashnode.dev/from-1-submission-to-50-the-journey-of-building-launchnests-in-public?utm_source=hashnode&utm_medium=feed) From 1 Submission to 50+: The Journey of Building LaunchNests in Public When I launched LaunchNests, I didn't know how quickly it would grow. I had built the product, worked on the details, and put it 5 min read · [solodevabu.hashnode.dev](https://solodevabu.hashnode.dev/from-1-submission-to-50-the-journey-of-building-launchnests-in-public?utm_source=hashnode&utm_medium=feed) [Nov 4](https://hashnode.com/posts/from-1-submission-to-50-the-journey-of-building-launchnests-in-public/6aeaf599edf41575945d19c9) ### [How Batching Increased My Throughput from 342 req/s to 1,259 req/s](https://solodevabu.hashnode.dev/how-batching-increased-my-throughput-from-342-req-s-to-1-259-req-s?utm_source=hashnode&utm_medium=feed) Batching database writes took webhook ingestion from 342 to 1,259 req/s by cutting PostgreSQL transaction overhead with tradeoffs to watch. 6 min read · [solodevabu.hashnode.dev](https://solodevabu.hashnode.dev/how-batching-increased-my-throughput-from-342-req-s-to-1-259-req-s?utm_source=hashnode&utm_medium=feed) [Aug 4](https://hashnode.com/posts/how-batching-increased-my-throughput-from-342-req-s-to-1-259-req-s/6a7214532c296fb0120e1a51) ### [Designing a Multi-Tenant Webhook Delivery System handling over 1000+ req/sec](https://solodevabu.hashnode.dev/designing-a-multi-tenant-webhook-delivery-system-handling-over-1000-req-sec?utm_source=hashnode&utm_medium=feed) Build a scalable webhook delivery system with Node.js, Redis, BullMQ, and PostgreSQL using retries, batching, circuit breakers, and idempotency. 18 min read · [solodevabu.hashnode.dev](https://solodevabu.hashnode.dev/designing-a-multi-tenant-webhook-delivery-system-handling-over-1000-req-sec?utm_source=hashnode&utm_medium=feed) [Jul 26](https://hashnode.com/posts/designing-a-multi-tenant-webhook-delivery-system-handling-over-1000-req-sec/6a65ab0c4541463347b158fc)