# Full Stack Engineer (.NET + Front-End)

**Company:** [NetSpeek](http://jobs.workable.com/companies/7Toby5ZjToGjmk1riCkwQB.md)
**Location:** Remote
**Workplace:** remote
**Employment type:** Full-time
**Department:** Engineering

[Apply for this job](http://jobs.workable.com/view/00dff6e8-571d-44fa-bb0a-5155380320da)

## Description

### Full Stack Engineer (.NET + Front-End) **— NetSpeek**

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.

TThe 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.  

### What you'll work on

-   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.

**You're a fit if**

-   You have 5+ years of .NET / C# backend experience, with hands-on production work in .NET 6 or newer.
-   You have 3+ years of React (or comparable modern framework) experience.
-   You've shipped end-to-end features that touched both backend and frontend in the same project.
-   You've designed and shipped production REST APIs in a distributed SaaS environment.
-   You have hands-on production experience with AWS (preferred), Azure, or GCP.

**You probably aren't a fit if**

-   You're a backend-only engineer who treats the UI as someone else's problem.
-   You're a frontend-only engineer who treats the API as a given.
-   You haven't worked in environments where AI changes the contract between layers..

### How to apply

Run the [Operator UX](https://build.netspeek.ai/lab/operator-ux) for this role, then submit your structured response with the application. Or take the [Field Note path](https://build.netspeek.ai/apply/full-stack-engineer/field-note) as a single essay question instead.

Either path is read by a human on our hiring team. No AI scoring, no auto-rejection.

### Read the [Engineering Handbook](https://build.netspeek.ai/handbook) and [How We Evaluate](https://build.netspeek.ai/principles) before applying.  
  
After an offer

We run standard pre-employment checks before your start date: identity verification, right-to-work confirmation, employment verification, and (where lawful and role-relevant) a criminal record check. We don't run credit checks or online reputation scoring.[](https://build.netspeek.ai/handbook#pre-employment-checks\).)

## Requirements

### Must-have

-   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).
-   Strong debugging and systems thinking.

### Strong signal

-   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.

## Benefits

We are growth-stage and fully remote, not late-stage. We invest in the work, the tools, and the people, not the manifesto.

**What that looks like in practice:  
**

-   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)