About The Position

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.

Requirements

  • 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
  • Experience with Azure Blob Storage
  • Experience with 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

Nice To Haves

  • Leave systems clearer, more correct, and easier to evolve
  • Solve problems at the right level, not patch over them
  • Make trade-offs explicit and understood
  • Earn trust from other engineers regarding judgement and code quality

Responsibilities

  • 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
  • Think critically, challenge assumptions, design robust solutions, and take responsibility for their long-term success
  • Work across backend services, distributed systems and frontend integrations, with a strong focus on correctness, maintainability and architectural clarity
  • Use AI-assisted development tools responsibly, understanding that speed only matters when paired with strong design, testing and review discipline
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