Full Stack Engineer (.NET + Front-End)

NetSpeek

19h • Remote

About The Position

NetSpeek is the agentic control plane for enterprise physical infrastructure. We govern how AI agents reason about, decide on, and execute actions across enterprise endpoints. Our reasoning and execution layer — Lena — sits in customer production environments, where reliability, observability, and auditability are non-negotiable.
The Full Stack Engineer ships features end-to-end across the .NET backbone, the React surfaces, and the operator workflows on top of Lena. You'll move across the stack daily.

Requirements

• 5+ years of .NET / C# backend experience, with hands-on production work in .NET 6 or newer.
• 3+ years of React (or comparable modern framework) experience.
• Shipped end-to-end features that touched both backend and frontend in the same project.
• Designed and shipped production REST APIs in a distributed SaaS environment.
• Hands-on production experience with AWS (preferred), Azure, or GCP.
• Strong debugging and systems thinking.
• Strong backend engineering experience in .NET / C#, with hands-on production work in modern .NET (6+, not legacy Framework only).
• Frontend development experience with modern React (or comparable framework such as Next.js, Vue, or Svelte).
• API design experience for distributed SaaS systems; you have designed and shipped production REST APIs.
• Cloud-native application development with AWS preferred (Azure or GCP also welcome).

Nice To Haves

• Real-time systems or orchestration platform experience.
• Enterprise SaaS architecture familiarity.
• Exposure to AI-integrated applications (you do not need to be the AI engineer, but you should be comfortable working alongside one).
• Startup or scale-up environment experience.
• Observability and operational tooling familiarity.

Responsibilities

• Designing and shipping .NET 6+ backend services that mediate between AI reasoning, device adapters, and operator surfaces.
• Building React surfaces that present Lena's signal — including uncertainty shape, not just confidence numbers.
• Owning the REST API design between backend and frontend (and Lena's Python services).
• Driving operator UX decisions in partnership with product, with attention to the workflows operators run dozens of times a day.

Benefits

• Flexible / unlimited time off
• Health insurance
• Equity participation, discussed at offer
• Fully remote
• Architectural ownership of work that ships to real enterprise customers
• Direct working relationships with the people setting platform strategy
• A growth-stage platform where the decisions you make in your first year shape the product for years
• AI-assisted tooling licensed by NetSpeek (Cursor, Claude Code, GitHub Copilot, or comparable)

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed