NY Senior Software Engineer

Position: New York, NY Senior Software Engineer
Location: New York

We are hiring a Backend-leaning Full-Stack Software Engineer with strong Python expertise and the ability to contribute across the stack when needed (React/Type Script). You’ll work closely with our founding engineering team—particularly our current backend lead to take ownership of backend systems that power our digital twin engine and AI-driven pipelines.

This role is ideal for someone who thrives in early-stage startup environments, learns fast, wants wide scope and impact, and sees engineering as a craft—not just a job.

What You’ll Do

• Own major components of our backend systems, with the goal of becoming the primary owner of the backend over time.

• Build performant, production-grade backend features in Python.

• Work with geometry, spatial data, simulation data, and large datasets.

• Contribute to frontend components in React + Type Script when needed (light/medium complexity).

• Collaborate on data pipelines, GPU-related workflows, and LLM/AI-driven functionality.

• Work across backend, frontend, and infrastructure in true startup fashion.

• Ship fast while maintaining high engineering judgment—balancing speed, quality, and minimal viable complexity.

• Work onsite in our Williamsburg, Brooklyn office 4 days/week (5 optional).

Technical Profile

• 5–10 years of experience preferred (exceptional 3+ years considered).

• Strong backend engineering experience with Python.

• Experience with geometric, spatial, or simulation-related data is a strong plus.

• Experience with GPU computing, LLM/agentic systems, or data-heavy pipelines is a plus.

• Comfortable contributing to frontend codebases using React + Type Script.

• Some exposure to infrastructure (cloud, CI/CD, containers, Dev Ops basics) is a plus.

• Preferably holds a Computer Science degree; CE or EE also acceptable.

Bootcamp-only or non-technical degrees are not a fit for this particular role.

Mindset & Startup Fit

• Has worked at a seed-stage or Series A startup and understands startup velocity.

• Hungry, curious, and not afraid to dive into new technology—even if you’ve never touched it before.

• Learns fast, asks the right questions, and figures things out.

• Wants to own systems end-to-end, not just complete tickets.

• Thrives in ambiguity and builds with a product-driven mindset.

• Wants to be part of a tight, highly skilled team where engineering is central to the company.

Candidates from the following areas tend to be a strong match:

• Wireless engineering

• Software for physical infrastructure / real-world modeling

Eino is building the world’s first Connectivity Digital Twin— a deeply technical, AI-driven simulation platform that models real-world environments and their connectivity layers.

We are a real AI company: not LLM-wrapper tooling, but deep tech. Our work spans geometry processing, spatial reasoning, GPU-accelerated simulation, data modeling, and agentic AI systems. Every engineer at Eino works on highly challenging problems and collaborates with a team of exceptional, experienced builders.

We are well-funded by strong investors, have real customers, and a clear roadmap to reshape how the world understands connectivity.

This is a rare opportunity for a hungry, entrepreneurial engineer to join a rocket-ship Seed/Series A startup at the ground level, help architect the core backend, and grow into the owner of critical product infrastructure.

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