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Software Engineer

Extend· Engineering
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New York CityFull-timePosted 8mo ago

About the role

Extend is building a modern document processing platform, reimagined with LLMs. As a Software Engineer, you’ll build the core platform used to configure, test, and deploy document processing, with focus on intuitive product experiences, attention to detail, and high ownership.

Responsibilities

  • Build, and maintain, durable, scalable systems capable of processing 10s of millions of data points per month.
  • Design and implement the best human ↔ AI interfaces for designing and understanding document processing.
  • Have complete ownership over the work you do — as a founding team member, you’ll have the opportunity to truly own large areas of product and engineering and have direct relationship with customers.
  • Work directly with the CEO, CTO, and other founding members and help build out our team.

Qualifications

  • Strong foundational understanding of computer science principles through coursework, personal projects, internships, or prior work experience
  • 3+ years of professional software engineering experience (internships and part-time roles count!)
  • Enthusiasm for building high-quality, user-facing products and interest in working across the stack
  • Demonstrated ability to learn quickly, take ownership of projects, and work independently when needed
  • Interest in AI/ML technologies and curiosity about building products powered by LLMs

Skills

Required:Computer science fundamentalsSoftware engineeringUX/UI for AI-powered toolsIndependent ownership
Nice to have:AI/ML interest

Benefits

  • Insurance - 90% health insurance premium coverage
  • Relocation - for candidates based outside of NYC
  • Unlimited PTO policy
  • Daily lunch & snacks covered (plus dinner if you're in the office late)
  • Unlimited token / tooling access
  • Learning and development investment
Last updated Jul 15, 2026. Interested? Apply on the company site.

About Extend

Your complete document processing toolkit

The document processing platform built for the next generation.

document processingparsingextractionsplitAIAPIstoolingaccuracy
Company profileWebsite

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