Full Stack Engineer at Sent, Inc. (Kosovo)
Sent, Inc.· Kosovo·
Role details
Summary
Design and ship end-to-end features for Sent's messaging infrastructure, working across .NET and React frontend with ASP.NET Core backend. The role involves building APIs, integrating with carrier networks and internal services, and maintaining high reliability and scalability.
Job description
Pristina, Kosovo · In-Office
About Sent
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 on any channel. We've raised $5.8M in funding and we're growing fast.
The Role
We're looking for a Full Stack Engineer who can move across the entire product — designing APIs and shipping UI with equal confidence. You'll take ownership of end-to-end features that touch every layer of the Sent platform.
What You'll Do
- Own features end-to-end. Take requirements from design to delivery — backend API, frontend UI, database, and everything in between.
- Work across both stacks. Build and maintain services in .NET / ASP.NET Core on the backend and Next.js / React on the frontend. Comfortable in both without being precious about either.
- Integrate with the broader system. Connect to carrier networks, internal services, and third-party APIs. Understand how your features fit into the larger architecture.
- Move fast without breaking things. Ship regularly and take responsibility for what you build. Write tests, observe your deployments, and fix what breaks.
- Bring a product mindset. Think about what you're building and why. Push back when something doesn't make sense and suggest better approaches when you see them.
What We're Looking For
- 3+ years across both frontend and backend development. Not a preference — you actually do both.
- Hands-on Next.js / React and .NET / ASP.NET Core. You've shipped real features in both stacks.
- Experience with APIs, databases, and integrations. You understand how systems connect and what it takes to make them reliable.
- Scalability awareness. You think about what happens when load increases before it happens.
- Strong product instincts. You're not just building what's on the ticket. You're building the right thing.
Why Sent
We're a team building hard technical problems in messaging infrastructure. We value directness, craftsmanship, and actually shipping things. In Pristina, you'll be part of a close-knit engineering and operations team doing real work — not support work, not maintenance work. Work that matters. If you want to join a fast-moving company with a clear product and strong backing, this is that opportunity.
Sent, Inc. is an Equal Opportunity Employer committed to building a diverse and inclusive team. We encourage applications from candidates of all backgrounds and experiences.
Why work at Sent, Inc.
- Culture highlights: “Built for developers, by developers” – transparency in pricing, public roadmap, and honest docs. Values: Reliability, Simplicity, Innovation, Transparency.
- Work model: In-office at the New York City HQ (157 W…), with a globally distributed team across Kosovo and Botswana. Remote/hybrid policy not explicitly stated, but roles are listed as “In-Office” on Built In NYC.
- Engineering culture: Strong emphasis on developer experience, automation, and owning the full stack. Team includes Staff Engineer for Networks & Protocols. Open roles currently in compliance, demand generation, partnerships, account executive, and technical account manager.
- Notable perks: Startup equity, early employee impact, and opportunity to shape messaging infrastructure for millions of users. Public roadmap and open feedback loop with the developer community.