Application Systems Engineer

The Role

We are looking for a well rounded Systems Engineer to join our team and build LM Studio with us. The ideal candidate loves software at all levels of the stack, a prolific problem solver, and is passionate about building great products.

Specifically, you will build and evolve LM Studio's desktop application, background daemon, SDKs, and CLI. In this role you will design and maintain public and internal APIs, architect features to be surfaced both through the app's UI and our SDK.

This role might be for you if you care deeply about building delightful products for users and developers alike, and you get energized by the idea of shipping an iconic software product to millions of users worldwide.

Responsibilities

• Design and implement features in the LM Studio app and daemon.

• Design, implement, and maintain public and internal APIs.

• Implement, debug, and test daemon‑level code in NodeJS and C++.

• Profile, debug, and improve application rendering performance.

• Profile, debug, and improve process memory and CPU usage.

• Be an excellent communicator, contributor, and collaborator.

Qualifications

• 4+ years experience with Node.js and TypeScript. C++ experience a plus.

• Excellent problem‑solving and communication skills.

• Strong understanding of operating systems.

• Strong understanding of networking concepts and protocols.

• Into local LLMs and have tinkered with them in LM Studio.

• Passionate about a great user and developer experience.

LM Studio

We aim to build delightful and potent creation tools for AI. We are a small team based in New York. Everyone on the team is IC-minded, intellectually curious, self-motivated, and loves software. We care deeply about our user community and we strive to build canonical software that users and developers love.

Our products include the LM Studio desktop app, our developer SDKs: lmstudio-js and lmstudio-python, our CLI lms, MLX engine mlx-engine for M-chip Macs, venvstacks which enables us to ship Python-based software, the collaboration Hub for individuals and teams, and more currently being built.