Director of Portal Engineering @ Wellsync · Co-founder @ Message+ · Rotterdam, NL
10+ years building backend systems at scale. Director of Portal Engineering at Wellsync and co-founder of Message+, an AI-powered customer support platform. Previously at Shell, MessageBird, and Exotel (early employee), where I've shipped real-time communications infrastructure, data-driven sustainability systems, and telephony platforms serving millions of API calls.
I work primarily in Go, with strong experience in Python, PostgreSQL, distributed systems, and Linux. I care about code clarity, system reliability, and mentoring engineers.
- sparrow - Self-hosted webhook delivery platform with async fan-out, HMAC signing, Go-template payload transforms, and automatic retries
- schemagen - Golang library for generating random, schema-compliant JSON from JSON Schema definitions
- testhooks - Self-hostable webhook.site replacement. Capture, inspect, transform and forward webhooks in real time
sarathsadasivan.com · sarathsp06@gmail.com · linkedin · stackoverflow · telegram
I'm open to collaborating on projects involving AI agents, webhook infrastructure, and developer tooling -- especially where backend engineering and distributed systems intersect.




