Ansh Prasad

I’m a Senior Backend Engineer and Product Owner with 3+ years of experience building and scaling SaaS email infrastructure platforms from zero to production. I specialize in SMTP delivery architecture, event-driven distributed systems, multi-ESP orchestration, domain warmup, inbox placement, and authentication protocols (SPF, DKIM, DMARC).

I deliver end-to-end product ownership—owning roadmap planning, Agile sprint execution, stakeholder reporting, and SLA management. One highlight was diagnosing a cascading memory leak in a production SMTP pipeline, re-architecting consumer group topology with backpressure controls, and scaling throughput from 20 emails/min to 200+ emails/sec (600% improvement) with zero downtime.

At Sendcrux Labs, I shipped Inbox Placement for WarmupIP with blacklist monitoring, SPF/DKIM/DMARC validation, and an ML spam classifier (95% detection accuracy; sub-3-second scoring). I also scaled warmup infrastructure from 500 to 400K+ sends/day using provider-aware adaptive throttling, and designed a fault-tolerant multi-provider sending layer with capacity validation, bounce classification, self-healing scheduling, and robust retry logic.