Principal Full Stack Software Engineer

JITX is revolutionizing circuit board design by making it code-first. The company is seeking a Principal Full Stack Software Engineer to drive technical direction, manage significant product areas, and oversee the development of user management systems and core runtime components.

Responsibilities:

• Drive technical direction for significant product areas and own them end-to-end
• Work across our stack—from user management systems to our core design application
• Make architectural decisions that shape how electrical engineers interact with our product for years to come
• Identify technical debt, propose solutions, and drive consensus around the right path forward
• Reworking our user and license management system
• Architect and largely implement user and license management system while coordinating with stakeholders across the company
• Transition to working on critical core runtime components that power our circuit design engine
• Raise the bar for engineering across the team—through code reviews, technical mentorship, and establishing patterns that others can follow
• Work on User Management Platform
• Work on Graphical User Interface Application
• Work on Application Runtime & Architecture

Requirements:

• Extensive full stack experience with TypeScript/React and Python, with a track record of architectural decisions at scale
• Strong algorithmic problem-solving skills with understanding of complexity analysis, graph/tree data structures, and computational efficiency
• Ability to drive technical direction and follow through on architectural decisions across the stack
• Experience identifying technical debt, evaluating tradeoffs, and building consensus around solutions
• Self-directed work style with strong product sense and ability to unblock yourself and others
• Experience gathering requirements from stakeholders and translating them into technical solutions and system designs
• Track record of owning large, complex features from planning through production
• Ability to mentor and raise technical standards across a team through code reviews and establishing best practices
• Comfortable working with ambiguity in a startup environment
• Experience with graphics/visualization libraries (PixiJS, Three.js, WebGL)
• Background in developer tools or technical products
• MongoDB and PostgreSQL experience, or other databases
• Auth/identity management systems (WorkOS, Auth0, etc.)
• Polyglot programming experience—comfortable across multiple languages and paradigms
• Interest in hardware, electronics, or CAD tools