Senior Product Engineer, AI-Native Apps - Ownership

Nxt Level; New York (NY); On-site; USD 180,000 - 240,000; Full time

Job summary

Nxt Level is seeking a Senior Product Engineer to own the development of AI-native products built on top of its platform. You will drive backend services, integrations, and customer-facing applications with a strong emphasis on practical product judgment and zero-to-one impact.

You’ll operate autonomously, shaping product direction, and partnering with the founding team to identify opportunities, test ideas, and ship reliable, high-value solutions.

Qualifications

• Strong full-stack software engineering experience with production systems.
• Demonstrated experience building and launching products from zero to one.
• Track record of products achieving meaningful customer adoption, revenue, or commercial success.
• Exceptional product sense and ability to make thoughtful UX and UI decisions.
• Ability to own backend architecture, frontend development, integrations, and deployment.
• Experience with cloud infrastructure, preferably AWS, and familiarity with infrastructure as code.
• Understanding of agentic AI systems, frontier models, and modern AI development workflows.
• Experience using AI-native engineering tools such as Claude Code, Cursor, or Cline.
• Ability to take ambiguous problems and independently turn them into shipped products.
• Strong first-principles problem-solving skills.
• High ownership, resourcefulness, and comfort working without extensive planning processes.

Responsibilities

• Own AI-native products end to end, from concept and architecture through launch and production.
• Build backend services, enterprise integrations, and customer-facing applications.
• Develop intuitive product experiences using modern frontend technologies such as React.
• Identify customer problems and independently develop solutions.
• Design and improve AI agent workflows built on frontier models.
• Build evaluation frameworks and feedback loops that improve agent reliability.
• Instrument agent failures and turn real customer scenarios into reproducible tests.
• Work across application development, cloud infrastructure, and AI integrations.
• Use AI coding tools to accelerate development while maintaining strong engineering judgment.
• Partner with the founding team to shape product direction and identify new opportunities.
• Take increasing ownership of the product roadmap by proposing and driving new product ideas.

Skills

Full-stack engineering

Production systems

Product ownership

Agentic AI

Frontend React

Backend architecture

Cloud infrastructure AWS

Infrastructure as code

Independent problem solving

Entrepreneurial mindset

Job description

Nxt Level is seeking a Senior Product Engineer to own the development of AI-native products built on top of its platform. You will drive backend services, integrations, and customer-facing applications with a strong emphasis on practical product judgment and zero-to-one impact.

You’ll operate autonomously, shaping product direction, and partnering with the founding team to identify opportunities, test ideas, and ship reliable, high-value solutions.