Senior AI Backend/Full-Stack Engineer — NYC Onsite, Equity

People in AI; New York (NY); On-site; USD 170,000 - 200,000; Full time

Benefits offered by this job

Health insurance

Dinners, snacks & drinks

Job summary

People in AI is a seed-stage startup in New York City seeking Backend and Full Stack Software Engineers to join its growing engineering team. You’ll work directly with founders to build and scale the core platform, with significant ownership over architecture, development, and technical decisions.

This onsite role focuses on backend, APIs, databases, and AI-powered systems, collaborating with leadership to shape product direction while delivering high-impact results.

Qualifications

• 3–5 years of software engineering experience.
• Experience building and shipping complex production applications.
• Solid system design, API, and database fundamentals.
• Ability to own projects end-to-end and solve ambiguous problems.
• Comfortable in a fast-paced, high-intensity startup environment.
• Willingness to work onsite in NYC six days per week.

Responsibilities

• Build and scale backend systems, APIs, and infrastructure.
• Own complex engineering projects from architecture through production.
• Design reliable databases and optimize system performance.
• Develop AI agents, LLM integrations, and automated workflows.
• Collaborate with founders on product and technical decisions.
• Help shape the engineering foundation of a growing startup.

Skills

3–5 years experience

TypeScript

API design

Databases

Backend systems

AI agents / LLMs

Production AI apps

End-to-end ownership

Tools

TypeScript

Job description

People in AI is a seed-stage startup in New York City seeking Backend and Full Stack Software Engineers to join its growing engineering team. You’ll work directly with founders to build and scale the core platform, with significant ownership over architecture, development, and technical decisions.

This onsite role focuses on backend, APIs, databases, and AI-powered systems, collaborating with leadership to shape product direction while delivering high-impact results.