Backend Software Engineer at Sixfold

  • Full-time
  • On-site, New York
  • $170,000 yearly

Who we are:

At Sixfold, we’re giving businesses the benefits of AI-powered decision-making. Our AI handles the leg work while humans spend their time on things they do best. Our product is the world’s first artificial intelligence trained to solve the hardest problems in the insurance industry. Underwriters work with Sixfold to improve their capacity, accuracy, and speed. Sixfold can identify the risks in submissions, prior losses, external data lookups, and more. Sixfold solves the "front-door problem" faced by many carriers, allowing them to more quickly evaluate and rate all submissions, prioritizing the best risks. 

Why we’re excited about this space:

We’re building the AI for insurance underwriters. As generative AI is being used to tackle all types of use cases, insurance has a unique set of challenges. We’re serving a core business function that protects everything from a small business to a large trucking fleet. Our team is made of former founders and operators with experience in insurance, enterprise B2B, eCommerce, and consumer products.

What you’ll do: 

As an early engineer of Sixfold, you will have the opportunity to influence the foundation and growth of our business.

  • Join a growing product team that is responsible for the end-to-end Sixfold customer experience.
  • Work across a variety of programming languages to deliver leading enterprise services in the AI and insurtech space.
  • Design and build out enterprise grade APIs for use by our customers and 3rd party integration partners.
  • Optimize our backend services to match our growing data needs.
  • Help develop our test suite and regression testing to ensure reliability of our services.

Who you are:

  • Passionate about building and scaling systems: You understand the foundations of how parts of a system fit together—from the user interface to the data model. If you've experienced the technical challenges of rapid growth, that's a plus.
  • Thoughtful problem-solving: You approach problems holistically. You think critically about the implications of what you're building and how it will impact real people's lives. - -- You can navigate ambiguity, while also balancing the business impact of what you’re building.
  • Not ideological about technology: To you, technologies and programming languages are about tradeoffs. You may be opinionated, but you're not ideological and can learn new technologies as you go.
  • Empathetic communication: You communicate nuanced ideas clearly, whether you're explaining technical decisions in writing or brainstorming in real-time. In disagreements, you engage thoughtfully with other perspectives and compromise when needed.


  • You have 5+ years of professional software engineering experience.
  • You are familiar with Ruby on Rails and know its patterns well enough to build features in a Rails app without significant learning time. Extra credit if you have experience with Action Cable, Active Storage, or Sidekiq.
  • You want to work in an early-stage, fast-growth tech company. You are comfortable with ambiguity and change. You can own problems and proactively devise solutions for them, not just wait for somebody to feed you tasks to execute.
  • You love communication, collaboration, and execution. You value meaningful commit messages and pull request descriptions and prefer to close your own PRs within a day or two.
  • You appreciate healthy engineering debates but know how to make pragmatic decisions. You take feedback well and are candid with the feedback you give.