Product Engineer: Build AI-Powered Startup Apps

25madison LLC; New York (NY); On-site; USD 120,000 - 170,000; Full time

Job summary

25madison LLC is seeking a product-minded engineer in New York to turn ambiguous problems into working software. You’ll work hands-on with startups in the studio, owning implementation and staying close to customer outcomes.

You’ll collaborate with founders, designers, and customers to shape workflows, build across the stack, and apply AI-enabled tooling for rapid, reliable delivery. This is a hands-on, building role with ownership from day one.

Qualifications

• Proven track record shipping production software.
• Experience across frontend, backend, APIs, and cloud infrastructure.
• Familiarity with AI coding workflows and tools.
• Ability to translate vague problems into working software.
• Strong communication and product judgment.

Responsibilities

• Take concepts from idea to production, shipping first usable versions and iterating as the business grows.
• Collaborate with founders, designers, and customers to understand workflows and priorities.
• Build across the stack: interfaces, services, data models, integrations, and AI-enabled workflows.
• Leverage AI to expand what you can deliver while maintaining architecture, security, and quality.

Skills

Shipping prod software

Frontend & Backend

APIs & Databases

Cloud infrastructure

AI tooling usage

Product empathy

Clear communication

Tools

AI coding tools

Job description

25madison LLC is seeking a product-minded engineer in New York to turn ambiguous problems into working software. You’ll work hands-on with startups in the studio, owning implementation and staying close to customer outcomes.

You’ll collaborate with founders, designers, and customers to shape workflows, build across the stack, and apply AI-enabled tooling for rapid, reliable delivery. This is a hands-on, building role with ownership from day one.