> Markdown version of [/jobs/ext/2347314-software-engineer-agent-harness](https://www.wearedevelopers.com/jobs/ext/2347314-software-engineer-agent-harness). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer, Agent Harness - **Company:** LM STUDIO INC. - **Location:** New York, NY, United States (Remote available) - **Salary:** $150,000.0 - $350,000.0 - **Contract:** Permanent contract - **Skills:** Programming Tools, Language Modeling, Software Tools, TypeScript, Git - **Published:** August 7, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=3f457e8dce1fe57a ## About the Role * Significant experience building production software involving language models, developer tools, or automation * Strong understanding of tool calling, structured model output, context construction, and streaming inference * Experience building stateful systems that perform multi-step work and recover cleanly from failures * Excellent TypeScript and general software engineering fundamentals * Deep interest in open models and a practical understanding of their strengths and limitations * Works with high technical intensity and takes personal responsibility for the finished product ## Description We are looking for an Agent Harness Software Engineer to build the core agent system behind Bionic, LM Studio's agent for work and code. You will make open models effective at working with codebases, documents, files, software tools, and the user's computer., * Build and improve the agent harness that powers Bionic * Make local and cloud models reliable at using files, search, Git, the shell, web tools, and document tools * Integrate new open models and optimize how they perform in the Bionic agent harness * Manage conversation history, working context, tool results, interruptions, and recovery * Build repeatable evaluations and diagnostics for understanding where and why an agent fails * Constrain the model in a smart way so it remains useful * Work across Bionic, the LM Studio runtime, and LM Studio cloud to improve the complete system ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Do TypeScript without TypeScript](https://www.wearedevelopers.com/videos/327-do-typescript-without-typescript) - [ Secure Code Superstars: Empowering Developers and Surpassing Security Challenges Together](https://www.wearedevelopers.com/videos/422-secure-code-superstars-empowering-developers-and-surpassing-security-challenges-together) - [Agentic AI: building autonomous systems for developers](https://www.wearedevelopers.com/videos/100034-agentic-ai-building-autonomous-systems-for-developers) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Meta Harnesses: What the JS Framework Wars Teach Us About What Is Next for AI Agents](https://www.wearedevelopers.com/videos/100353-meta-harnesses-what-the-js-framework-wars-teach-us-about-what-is-next-for-ai-agents) ## Related Articles - [What is Agentic Programming and Why Should Developers Care?](https://www.wearedevelopers.com/magazine/625-what-is-agentic-programming-and-why-should-developers-care) - [A 5-Step Open-Source Setup for Agentic Engineering](https://www.wearedevelopers.com/magazine/738-a-5-step-open-source-setup-for-agentic-engineering) - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [Never delegate the understanding](https://www.wearedevelopers.com/magazine/749-never-delegate-the-understanding) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 137 - AI'm not sure about this](https://www.wearedevelopers.com/magazine/485-dev-digest-137-ai-m-not-sure-about-this)