Senior Software Engineer (C# / .Net)

What we do

LineTen is on a mission to crack the code on urban delivery. By leading with our values and putting carrier partners first, we are paving the way for better delivery experiences. LineTen is a new approach to delivery with a free carrier API and an operations management platform for shippers. We're building the first global data\-driven last\-mile network that has the potential to solve industry\-wide problems.

We’re hiring a Senior Software Engineer who treats software as a craft, not a checklist. You’ll join a small, high\-trust team where ownership is expected, curiosity is encouraged, and outcomes matter more than activity. This is not a ticket\-factory role: you’ll be expected to think critically, challenge assumptions, design robust solutions, and take responsibility for their long\-term success.

You’ll work across backend services, distributed systems and frontend integrations, with a strong focus on correctness, maintainability and architectural clarity. You’ll also use AI\-assisted development tools responsibly, understanding that speed only matters when paired with strong design, testing and review discipline.

How you’ll work

• Operate with high ownership in a low\-process environment


• Proactively look for what can be improved rather than waiting for direction


• Value correctness, clarity and maintainability over “it just works”


• Work outside strict role boundaries when needed, without feeding burnout culture


• Communicate technical decisions clearly and push back constructively when required

• C\# / .NET 8\+, Entity Framework Core, async/await, MediatR / CQRS


• Strong understanding of distributed systems: consistency models, event\-driven patterns, idempotency, race conditions


• Experience with Redis caching, Azure Blob Storage, and data\-modelling trade\-offs


• API design: RESTful contracts, versioning, webhooks, long\-running operations (202 Accepted patterns)


• Real\-time \& frontend integration: SignalR / WebSockets, SPA frameworks (Vue / Nuxt or similar), TypeScript

• You leave systems clearer, more correct, and easier to evolve


• Problems are solved at the right level, not patched over


• Trade\-offs are explicit and understood


• Other engineers trust your judgement and the quality of your code

This listing is from Indeed. View original listing ↗