Senior Software Engineer

About the Role

This is a high-ownership engineering role at a seed-stage ECAD SaaS startup building collaborative, AI-assisted design tooling for hardware engineers in complex industries such as aerospace and defense. As a senior engineer on a small, fast-moving team, you will own core systems across the stack — from cloud infrastructure and AI copilot features to real-time collaboration and physics-based simulation. You will help set the technical direction of the product as it scales.

What You'll Do

• Architect application infrastructure spanning the cloud ecosystem, AI copilot, and physics simulation backend.

• Lead development of major features end to end — from architecture and implementation through deployment and sustainment.

• Collaborate closely with the product team to identify and deliver the capabilities customers need most.

• Define and uphold technical standards and long-term system architecture as the product and team grow.

What We're Looking For

Required

• 5+ years of software engineering experience with demonstrated ownership of production systems or large-scale features.

• Deep expertise in at least one layer of the stack — frontend frameworks, real-time collaboration, or AI/ML systems.

• Proficiency with modern tools including React, TypeScript, and Python.

• Strong product intuition and a track record of effective cross-functional collaboration in fast-paced environments.

• Experience with physics-based modeling and simulation systems.

• Ability to work in the United States without visa sponsorship.

Nice to Have

• Background in hardware engineering tooling, CAD/ECAD platforms, or aerospace and defense software.

• Experience building security-compliant SaaS products (e.g., GovCloud, ITAR, CUI environments).

• Familiarity with real-time collaborative editing architectures (e.g., CRDTs, OT).

Compensation & Benefits

• Salary: $120,000 – $170,000 USD annually, depending on experience.

• Equity participation in a seed-stage company with significant growth potential.

• Small team environment with high autonomy and direct impact on product direction.

Location

This role is on-site in New York, NY. Remote and hybrid arrangements are not available. Candidates must be authorized to work in the United States; visa sponsorship is not offered.