Hasun
Simple transactional SMS and email gateway with API and dashboard. Built by developers for developers.
Overview
Hasun is an all-in-one platform for transactional SMS and email. It offers an easy-to-use API and a simple dashboard so teams can send white-labeled SMS and email without breaking the bank. Built by Remote DOT with Rails, it’s designed for developers who need reliable delivery, clear reporting, and pay-as-you-go pricing.
Product highlights
- Transactional SMS & Email — White-labeled messaging with intelligent routing; SMS typically delivered in under 3 seconds, email under 1 minute.
- OTP — Dedicated one-time passcode sender and validator for customer verification.
- Multi-organisations — Scope teams and usage per organisation with separate billing.
- Schedule — Plan campaigns in advance; the system handles sending on schedule.
- Reporting — Transparent reports and pay-later packages so billing stays simple.
- Easy API — OpenAPI 3.0 spec with code samples and libraries for fast integration.
- Enterprise — Option for privately deployed instances for high-security use cases.
Role & scope
- Led or contributed to product and platform design for SMS/email gateway and API.
- Rails 7, Sidekiq, Redis, and AnyCable for real-time features, background jobs, and scalability.
- Focus on developer experience: documentation, SDKs, and straightforward pricing (pay only for what you use).
Tech
Rails 7, PostgreSQL, Redis, Sidekiq, AnyCable. OpenAPI 3.0 for the public API.