About Katapult LabsKatapult is an AI-first engineering studio connecting senior LATAM talent with startups and companies in the US. We're not a staff-augmentation shop: every person we put in front of a client represents Katapult, co-creates product, and owns the outcome directly, with no managers or leads acting as a layer in between.The RoleWe're looking for a Full-Stack Builder to join the founding technical team behind one of our partners, an early-stage product with big ambitions to become a real tech company: web platform, mobile app, and everything in between. Our partner already has a first version of their site live, built by a non-technical founding team full of product ideas. We need someone who can step in, understand and harden the existing architecture, refactor where needed, and help seed the technical process for building product going forward.This is a builder role, not a heavy-architecture or platform-engineering seat. You'll move fast, ship with sufficient quality, and work closely with a product-minded team that cares deeply about user experience and engagement. Mobile development isn't required from day one, but the team expects to build a mobile app down the line, so comfort picking that up matters. If the engagement goes well, this grows into a two-builder team supporting the full platform.Key ResponsibilitiesUnderstand and evaluate the current architecture of our partner's existing web platformRefactor and harden the codebase to support rapid, reliable iterationBuild new features end-to-end, working closely with the product lead on UX and engagement-focused functionalityHelp establish lightweight technical processes (code review,



deployment, documentation) as the team scalesCollaborate directly with a technical product manager and design lead in a fast-moving, startup environmentBe ready to extend work into mobile development as the product roadmap evolvesRequirementsAdvanced conversational English, since all collaboration happens in EnglishStrong full-stack engineering experience with modern web technologies (frontend and backend)Demonstrated ability to work as a builder: shipping fast, with just enough architecture, not over-engineeringComfort working directly with founders and non-technical stakeholders, translating product vision into working softwareExperience refactoring or hardening an existing early-stage codebaseProduct analytics tooling (Amplitude, PostHog, or similar)Agentic mindset: comfortable using AI coding tools (Cursor, Claude Code, etc.) as part of daily workflowStrong communication skills, comfortable asking clarifying questions and flagging blockers earlyNice to HavePrior experience building consumer-facing (B2C) products with high user engagementMobile development experience (native or cross-platform)Experience working in a 0-to-1 startup environment alongside a small, fast-moving teamWork-Life BalanceWork from Anywhere in Latin America: Enjoy the freedom to work remotely from any country in Latin America.23 Days of PTO per Year: Take time to recharge with paid time off, accrued monthly (1.91 days/month).USA Federal HolidaysFinancial BenefitsMonthly Payment in USD: Get paid in US dollars, no matter where you are.Contractor Agreement with No End Date: Enjoy the stability of a long-term contract.#J-18808-Ljbffr

📌 Full-Stack Builder — Product Engineering (Colombia)
🏢 Katapult Labs
📍 Colombia