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Upside Logo

Senior Full Stack Software Engineer II

Upside

$180,000 - $210,000
Sep 16, 2025
Austin, TX, US
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Upside aims to transform brick-and-mortar commerce by applying the sophistication of online retail to provide users with more value on everyday purchases and brick-and-mortar businesses with new, profitable customers.

Requirements

  • Build with semantic HTML, CSS, and core JavaScript concepts
  • Apply strong knowledge of core web and browser fundamentals (e.g., how a browser parses and constructs a web page)
  • Write reliable automated tests as a foundation for quality
  • Demonstrate a proven ability or strong desire to apply generative AI across the SDLC, from ideation and design to coding, testing and release, to increase velocity and quality
  • React
  • Typescript
  • Python

Responsibilities

  • Learn and innovate on the ways we can improve our system
  • You are able to hone in on gaps in quality, security, performance, and speed of execution and generate buy-in to raise those bars.
  • Partner deeply with cross functional teams.
  • Drive quality through documentation.
  • Set clear expectations on delivery.
  • Lead with technical depth and continuously improve quality and observability
  • Debug complex systems by interpreting data, forming hypotheses and making meaningful improvements

Other

  • Help cultivate a collaborative and safe environment.
  • You can speak up to name problems, which will invite conversations that will then drive solutions.
  • Partner deeply with cross functional teams.
  • Whether it’s aligning with marketing on experimentation, enabling better personalization with data science, or integrating feedback from designers, you are proactive in surfacing insights and turning them into technical action.
  • You aren’t afraid to challenge the status quo when it makes the team and business better.