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Full Stack Engineer

Upside

Upside

Software Engineering
San Francisco, CA, USA
Posted on Jun 4, 2025

About Upside

Upside (https://upside.tech) is building a next-generation knowledge engine, tackling a problem nearly every B2B company struggles with but few have solved: figuring out what's actually working in their go-to-market efforts. Our founding team were previously founders and early employees at Branch, scaling it to over $100M in revenue and a $4B valuation.

Upside has already raised a substantial first round from top-tier investors like XYZ and Emerson Collective and is currently part of HF0 (https://hf0.com/), the most selective startup residency program in the world.

You can read more about the revenue intelligence problems we’re tackling here:

https://upside.tech/blog/two-radical-new-solutions-to-b2b-revenue-attribution

The Role

We are looking for an experienced Senior/Staff Full Stack Engineer who can navigate the entire stack, from building new pages on our React dashboard, to setting up new Django backend APIs to power them, and building new LLM powered data analysis agents to deliver insights to our customers. We’re looking for someone that is excited to bridge multiple systems, and brings a keen eye for good UX and design to the customer facing systems we build.

As part of Upside, you’ll join an impact-driven team and be a key driver of our customer-facing dashboard and back-end services. You’ll ship new features in the first week, launch significant new workflows for our customers in the first month, and help guide the architecture and best practices for our customer facing tools long term.

What You'll Get To Do

  • Build: Develop and ship critical functionality on our core customer dashboard
  • Own: Drive the architecture, design, and direction of our customer facing tech stack, establishing long-term patterns
  • Learn: How to build data intensive AI applications and apply LLMs in production at scale
  • Mentor: Teach others on the team best practices for full stack development, integrated testing, and anything else you’re an expert in
  • Collaborate: Work closely with the rest of the team to build a range of data intensive functionality, including aggregate reporting systems and LLM powered analysis agents

Work Culture & Environment:

  • You’ll work closely with the founders daily, with everyone on the team getting their hands dirty with whatever needs doing to move the company forward
  • We value results over effort, so while we expect you to push hard, it’s the outcome not the hours that matter
  • We really value in person collaboration, so if you’re in the SF Bay Area we’ll expect to see you in the office most days of the week, and if you’re anywhere else we’ll want to have you come visit to hang out and work together on a regular basis
  • Check out our instagram for a peek into life at Upside! https://www.instagram.com/unfilteredupside/

About You

We’re looking for someone who thrives on challenging problems and can operate independently with good judgment. You’re someone who’s not only comfortable wearing multiple hats but excels at and enjoys it. Here’s what we’re looking for:

Required Skills:

  • Seniority
    • Currently or previously has held a Senior/Staff or equivalent seniority technical role
  • Domain Knowledge:
    • Extensive background working on data-intensive React frontends
    • Proven track record of shipping production-quality features quickly
    • Leaning heavily into responsible LLM assisted development
  • Bonus:
    • Experience with Django and Python

Soft Skills:

  • High internal drive, self-motivated, and proactive
  • Strong communication skills, with the ability to explain complex technical concepts to non-technical stakeholders
  • Appetite for understanding business and customer context
  • Strong opinions, weakly held – open to feedback and collaboration

Why Upside?

  • Big Potential: We are working on a problem every single B2B company has and for which no-one has found a good solution yet. We are taking a radically different approach, and we know that if we can solve the technical challenges behind this, every enterprise company will want to buy our platform.
  • Large Impact: Your work will directly shape our product and how our customers make decisions
  • High Growth: Join early and grow with the company. As we scale, your role and responsibilities will evolve, offering you new challenges and opportunities
  • Culture: We’re a small, experienced team of operators that values results over effort, close collaboration, and driving decisions with data (for ourselves, and our customers). We’re excited to learn from people who have knowledge and experience we don’t, and to share our’s with you.

What we offer:

  • Flexible PTO
  • Meaningful equity
  • Top-notch medical, dental, vision, and disability insurance, and fringe benefits
  • HSA with company contributions
  • Pre-tax commuter benefits with a $200/mo employer contribution
  • 401(k) plan
  • Daily catered lunches at HQ