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Lumina Tech Group Linkedin · Posted 1mo ago

Full-Stack Software Engineer (AI Product Engineering)

New York, United States

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Full-Stack Software Engineer (AI Product Engineering)

Location: New York City (On-site, 5 days/week)

Employment Type: Full-Time

Compensation: $170K–$350K base + equity + relocation support + visa sponsorship available

About the Role

We’re hiring multiple Full-Stack Software Engineers to help build AI-native products at the intersection of applied AI and professional services. This is an opportunity to join a fast-growing early-stage team building production systems powered by LLMs, agentic workflows, and modern full-stack infrastructure.

The ideal candidate is a high-agency builder who thrives in fast-moving environments, enjoys owning products end-to-end, and has strong technical depth across both frontend and backend engineering.

What You’ll Do

  • Build and ship production-grade full-stack applications using TypeScript, Python, React, and modern web technologies
  • Design intuitive AI-native product experiences and workflows
  • Work closely with founders, product teams, and domain experts to rapidly prototype and launch new features
  • Own projects from planning through deployment and iteration
  • Contribute across product engineering, infrastructure, internal tooling, and scaling systems
  • Help shape engineering culture and technical direction in a high-growth environment

Requirements

Core Technical Skills

  • Strong proficiency in:
  • TypeScript
  • Python
  • React / Next.js
  • Experience building and shipping production-quality software
  • Familiarity with modern AI tooling, including:
  • LLM APIs
  • Agentic workflows
  • Streaming or long-running AI tasks

Experience

  • 1–5 years of experience in software engineering, product engineering, or full-stack development
  • Startup experience strongly preferred, particularly at high-growth companies (Series A+)
  • Experience owning features end-to-end across frontend, backend, and infrastructure
  • Strong internship experience considered for exceptional new graduates

Candidate Profile

  • High agency and strong ownership mentality
  • Passion for building products and shipping quickly
  • Demonstrated builder mindset through:
  • Personal projects
  • GitHub contributions
  • Portfolio work
  • Side projects
  • Strong product intuition and execution ability
  • Comfortable working in-person in NYC five days per week

Education

  • Bachelor’s degree in Computer Science or equivalent technical degree required

Preferred Backgrounds

Experience at one or more of the following is a strong plus:

  • High-growth startups
  • AI infrastructure or AI product companies
  • Product-led engineering organizations
  • Top-tier engineering environments

Exposure to companies known for strong engineering culture is highly valued.

Nice-to-Have Experience

  • AI-native product development
  • Internal tooling and growth engineering
  • Infrastructure and scaling systems
  • Customer-facing technical work
  • Working through company growth stages (e.g. Series A → B)

What Success Looks Like

  • Shipping quickly without sacrificing quality
  • Taking ownership with minimal oversight
  • Building products users love
  • Thriving in ambiguity and fast iteration cycles
  • Contributing across multiple areas of the stack as the company scales

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