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Senior Software Engineer - Full Stack

Windfall

$160,000 - $215,000
Dec 5, 2025
San Francisco, CA, US
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Windfall is looking for a Senior Full Stack Software Engineer to build and extend their AI-driven customer-facing application and internal tooling, aiming to change how organizations perceive and use people data.

Requirements

  • Experience developing server-side using an object-oriented approach, building API’s, and working with a modern frontend framework.
  • Experience using transactional databases
  • Proficiency with at least one major cloud provider is essential
  • Backend: Java, Kotlin
  • Frontend: JavaScript/Typescript, React
  • Cloud platform - GCP
  • Data warehouse & databases - Postgres, BigQuery

Responsibilities

  • Improve, extend, and tie together existing backend services to support our internal-facing applications
  • Rapidly prototype new tools and features that will make an immediate impact on the business
  • Contribute to a highly collaborative, feedback-driven, fast-paced engineering team
  • Develop broad ownership over our internal applications, including setting coding patterns, best practices, and guidelines
  • Collaborate closely with our product team to plan and execute projects at rapid speed
  • connecting services, creating API’s, and building out UI’s across multiple products

Other

  • 6+ years of professional experience designing, building, and maintaining web applications
  • Willingness to work a hybrid onsite schedule in our San Francisco or Denver office
  • Ability to move quickly in a startup environment
  • Impeccable attention to detail
  • Be an excellent communicator