Full Stack Engineer

Upside is hiring 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 excited to bridge multiple systems and with a keen eye for good UX and design in customer-facing systems.DescriptionAbout UpsideUpside (https://upside.tech) is building a next-generation knowledge engine to solve a common B2B challenge: understanding what’s effective in go-to-market efforts. Our founding team previously scaled Branch to over $100M revenue and a $4B valuation.We have raised a substantial first round from top-tier investors like XYZ and Emerson Collective and are part of HF0 (https://hf0.com/), a selective startup residency program.Learn more about the revenue intelligence problems we’re addressing:We seek an Senior/Staff Full Stack Engineer capable of working across the stack—from developing new React dashboard pages, setting up Django APIs, to building LLM-powered analytics tools. The ideal candidate is excited about integrating multiple systems and has a strong focus on UX and design.As part of Upside, you’ll join an impact-driven team, contributing to our customer dashboard and backend services. You’ll ship new features quickly, launch new workflows within the first month, and help shape our architecture and best practices long-term.What You'll DoBuild: Develop and deploy critical features on our customer dashboardOwn: Lead architecture and design of our tech stack for long-term scalabilityLearn: Build data-intensive AI applications and deploy LLMs at scaleMentor: Share best practices for full stack development and testing with team membersCollaborate: Work with the team to develop data-rich functionalities, including reporting systems and LLM analysis agentsEngage daily with founders and team members to advance company goalsFocus on results over effort, emphasizing outcome-driven workIn-person collaboration is valued; SF Bay Area residents are expected in the office most days, others will visit regularlyWe seek someone who thrives on challenges, operates independently with good judgment, and enjoys wearing multiple hats. Here’s what we’re looking for:Required SkillsSenior or equivalent experience in a technical roleExtensive experience with data-heavy React frontendsProven ability to ship production features quicklyExperience with responsible LLM-assisted developmentBonus: Django and Python experienceSoft SkillsSelf-motivated with high internal driveStrong communicator, able to explain technical concepts clearlyInterested in understanding business and customer needsOpen to feedback and collaborative workWhy Join Upside?Big Potential: Solving a universal B2B problem with a unique approach that appeals to enterprise clientsImpact: Your work directly influences product development and customer decision-makingGrowth: Early joiners will grow with the company, taking on new challengesCulture: Small, experienced team that values results, collaboration, and data-driven decisionsWhat We OfferFlexible PTOEquityComprehensive health benefitsHSA with company contributionsPre-tax commuter benefits with employer contribution #J-18808-Ljbffr