Senior Software Engineer (Fullstack)- Ultra low-latency Systems

Title: Fullstack Engineer – Ultra Low Latency Systems (Onsite, NYC)

Tech Stack: Rust / C / Python / TypeScript / React

What You’ll Do:

Project Details:

This role sits at the intersection of high-performance backend engineering and polished, user-facing product.

You’ll be building systems where speed is everything - powering workflows that rely on near-instant response times and absolute reliability.

Day-to-day, you’ll:

• Develop ultra low latency backend services in Rust/C /Python
• Build responsive, data-heavy frontend applications using TypeScript React
• Design end-to-end features - from infrastructure through to user experience
• Optimize critical paths where milliseconds genuinely matter
• Work on systems that ingest, process, and surface large volumes of data in real time
• Continuously refine performance, scalability, and system resilience

This is a true fullstack role - not “frontend with some API work” - you’ll own features all the way down to the metal

Who They Are:

Company Details:

A small, product-focused team tackling complex engineering problems in a space where performance and usability are equally critical.

• Built by engineers who care deeply about speed and simplicity
• Focused on delivering highly responsive, mission-critical tooling
• Tight-knit team with a strong bias toward action and ownership
• Rapid iteration cycles with direct feedback from real users
• A culture that values pragmatism over process and impact over optics

You’ll be joining early enough to shape both the product and the technical direction in a meaningful way.

What Is In It For You:

Benefits:

• Up to $230k strong equity upside
• Ownership of meaningful product areas from day one
• Work on technically challenging problems that go beyond typical web apps
• High trust environment - minimal meetings, maximum output
• Collaborate with engineers who enjoy building fast, scalable systems

Who You Are:

Requirements:

• 5 years of experience across backend and frontend engineering
• Strong backend skills in Rust, C , or Python
• Solid frontend experience with TypeScript and React
• Experience building or optimizing low latency or performance-critical systems
• Comfortable owning features end-to-end
• Experience working in fast-moving, ambiguous environments
• Strong instincts for writing efficient, maintainable code