Full-Stack Product Engineer TA (Next.js / React / Vercel)

Job DescriptionPilot Spring is looking for a sharp, fast-moving Full-Stack Product Engineer TA to support founders during a live, in-person 3-day build sprint.This role is ideal for someone who is strong in Next.js, React, frontend systems, API integrations, auth, and product debugging - and who can help founders move from messy ideas to real working MVPs quickly.You will work directly with founders, operators, and builders to unblock product issues in real time, help shape working product flows, and keep teams moving toward a launch-ready MVP or profitable pilot.This is not a passive teaching role. This is a live execution role.Key responsibilities include:Supporting founders live during a 3-day build sprintHelping participants implement and debug Next.js / React product flowsUnblocking frontend issues including forms, UI state, auth flows, API integrations, routing, dashboard pages, and onboarding flowsTranslating rough founder ideas into practical product decisionsPair-programming when neededHelping participants deploy and troubleshoot frontend environments on VercelCollaborating with the backend / AI TA to resolve cross-stack issuesKeeping participants focused on what actually needs to be built for a usable first versionReducing overbuilding and helping teams cut non-essential scopeProviding calm, fast support to technical and non-technical founders alikeRequirementsRequirementsStrong experience with ReactStrong experience with Next.jsStrong experience with modern frontend patterns and component architectureComfortable working with Tailwind CSSExperience integrating frontend apps with backend APIsComfortable debugging auth/session issues, API response issues, state bugs, broken form flows, and deployment issuesComfortable deploying and debugging on VercelWorking knowledge of product-oriented full-stack workflowsAble to move quickly without needing heavy directionStrongly preferred:Experience supporting startup MVP buildsExperience working with non-technical foundersExperience with Stripe, OAuth, webhooks, and Supabase auth/data flowsFamiliarity with Python backend integration patternsFamiliarity with fast-paced pair-programming or live build environmentsExperience cleaning up messy product ideas into shippable flowsBenefitsBenefitsHigh-impact contract role in a live founder sprintWork directly with startup founders building real MVPsFast-paced, collaborative environmentOpportunity for repeat event work and ongoing involvementStrong network exposure across founders, operators, and technical buildersMeaningful hands-on role shaping products from idea to working demo