Senior Software Engineer, Language Development

Zoo

Software Engineer developing next-gen CAD software with expertise in functional programming languages. Collaborating on the design and implementation of KCL and its IDE.

Posted 5/7/2026full-timeRemote • California • 🇺🇸 United StatesSenior💰 $145,000 - $195,000 per yearWebsite

Tech Stack

Tools & technologies

JavaScriptReactRustTypeScript

About the role

Key responsibilities & impact

Integrate the interpreter for a domain specific language (DSL) with a GUI written in TypeScript
Implement code-mods and other code refactoring tools
Add features and maintain an interpreter written in Rust, running in WebAssembly
Maintain a language parser and syntax highlighting
Develop and optimize the frontend of our modeling app, focusing on performance and user experience
Collaborate with backend teams to design and implement robust APIs that support the app's code-driven design functionality
Enhance the app's UI/UX by leveraging TypeScript, React, and XState, ensuring that the interface is both powerful and easy to use
Develop delightful CodeMirror extensions that bridge the gap between the user's code and the 3d-model
Implement advanced AST/code-mods, CodeMirror enhancements, and deep integration with WebAssembly (Wasm) for performance improvements
Utilize XState for state management to maintain app consistency and reliability across various user interactions
Apply a deep understanding of JavaScript and browser internals to improve app functionality and performance

Requirements

What you’ll need

B.S. Computer Science or a related field, or equivalent professional experience
Demonstrated professional experience and proficiency in software development contributing to highly scalable and reliable systems
Proficiency with Rust and Javascript/Typescript
Experience with functional programming languages
Knowledge of language parsers and interpreters
Knowledge of AST driven code-mods
Experience with Git
Solid understanding of modern techniques and algorithms related to workflow design
Familiarity with libraries and tools for programming language interoperability
A testing-based and automation-focused approach to engineering

Benefits

Comp & perks

Competitive equity
Full benefits package

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

TypeScriptRustJavaScriptWebAssemblyCodeMirrorXStatelanguage parsersASTfunctional programmingsoftware development

Soft Skills

collaborationuser experienceperformance optimizationproblem-solvingautomation-focused approach

Certifications

B.S. Computer Science