Software Engineer

Extend

• $120K — $145K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Strong understanding of computer science principles from education, projects, or prior experience.
  • Minimum of 3 years in software engineering (includes internships).
  • Passion for creating user-focused products and working across the tech stack.
  • Ability to learn quickly and work independently when necessary.
  • Interest in AI/ML and a curiosity about LLM-powered products.

Responsibilities

  • Build and maintain scalable systems that handle vast amounts of data monthly.
  • Design innovative human-AI interfaces for document processing.
  • Take complete ownership of projects influencing product and engineering directly.
  • Collaborate closely with the CEO, CTO, and founding team to shape the company.
  • Develop reliable systems for real-time data processing.

Benefits

  • 90% coverage on health insurance premiums.
  • Relocation assistance for candidates outside NYC.
  • Unlimited Paid Time Off (PTO) policy for flexible work-life balance.
  • Complimentary meals including lunch, snacks, and dinner for late office hours.
  • Unrestricted access to essential tools and resources for productivity enhancement.
  • Investment in learning and professional development opportunities.
Full Job Description
As a Software Engineer at Extend, you'll be responsible for building our core platform that companies use to configure, test, and deploy document processing. We're looking to hire exceptional engineers who care about crafting intuitive product experiences, relentlessly focus on the details, and operate with high agency.

Impact

We're powering mission-critical data processing at companies where if we get things wrong, there are real world impacts (e.g. missed payments, people can't move into homes on time).

Here's a few of the complex technical problems we're working on:
  • How do we enable enterprises to deploy LLM-powered document processing into production with confidence?
  • How do we handle never before seen edge cases in customer data?
  • How do we build a self-correcting system that automatically gets better over time?
  • How do we enable non-technical domain experts to improve models with their expertise & business logic?
  • How do we help customers make tradeoffs between latency, cost, and performance?
  • How do we build reliable systems that can process large data streams in real-time?


Role
  • 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. We are building a new territory of UX that previously did not exist. It's up to us to discover and implement new patterns that work for our users.
  • 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.


Ideal Candidate Credentials
  • 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
Benefits

Beyond the below, we care deeply about each of our candidates on a personal level. We take the time to understand your needs to craft a package designed for you:
  • Insurance - 90% health insurance premium coverage
  • Relocation - for candidates based outside of NYC
  • Unlimited PTO policy - we trust everyone like owners, take what you need
  • Daily lunch & snacks covered (plus dinner if you're in the office late) - you'll never go hungry and you help pick the snacks
  • Unlimited token / tooling access - no handicaps on your productivity
  • Learning and development investment - we invest heavily in our team and support your growth


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