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Backend Engineer (.NET) – WhatsApp/WABA

Sent · Kosovo · On-site

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About Sent

One API for all messaging channels. Send SMS, WhatsApp, and RCS messages with automated routing, compliance, and formatting. Start building today. Backed by Bessemer.

About the role

Sent is building the messaging infrastructure that powers how businesses communicate with their customers. We provide a unified API for SMS, WhatsApp, iMessage, and RCS, making it simple for developers to reach people across multiple messaging channels. Following our recent Series A funding, we're growing rapidly and building the future of business messaging.

What they're looking for

  • 3+ years of professional experience with C# / .NET / ASP.NET Core building production backend services
  • Hands-on experience with the WhatsApp Business Platform (WABA), WhatsApp Cloud API, or WhatsApp Business APIs
  • Experience working with WhatsApp messaging workflows, including webhooks, message templates, delivery statuses, and messaging events
  • Strong experience designing, building, and maintaining RESTful APIs
  • Strong understanding of asynchronous systems, webhooks, queues, retries, and event-driven architectures
  • Solid knowledge of relational databases, including schema design, efficient queries, and data integrity
More about this role

Job Title: Backend Engineer (.NET) – WhatsApp/WABA

Sent is building the messaging infrastructure that powers how businesses communicate with their customers. We provide a unified API for SMS, WhatsApp, iMessage, and RCS, making it simple for developers to reach people across multiple messaging channels.

Following our recent Series A funding, we're growing rapidly and building the future of business messaging.

We are looking for an experienced Backend Engineer (.NET) with hands-on WhatsApp Business Platform (WABA) experience to join our engineering team in Prishtina.

In this role, you will build and maintain the core backend services that power Sent's messaging infrastructure, with a particular focus on our WhatsApp integrations. You'll work on APIs, messaging workflows, webhooks, message templates, delivery events, and backend systems that process large volumes of messages every day.

You'll work closely with our engineering and product teams to build reliable, scalable messaging systems and strengthen Sent's integration with WhatsApp and other communication channels.

Design, build, and maintain backend services using C#, .NET, and ASP.NET Core.

Build and maintain integrations with...

Read the full posting on Sent's site ↗

Engineering

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