Full-Stack Builder — Product Engineering

Katapult Labs; Medellín; A distancia; COP 252.840.000 - 397.320.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Remote work across LATAM

23 Days PTO per Year

USA Federal Holidays

Monthly USD payment

Contractor agreement with no end date

Descripción de la vacante

Katapult Labs, an AI‑first engineering studio, seeks a Full‑Stack Builder to join the founding technical team behind a partner product. You will harden the existing web platform, refactor where needed, and seed the technical process for ongoing product development across web and eventual mobile work.

This builder role emphasizes fast delivery, quality, and close collaboration with a product‑minded team that prioritizes user experience and engagement.

Formación

• Advanced conversational English required.
• Strong full‑stack experience with modern web technologies.
• Builder mindset: shipping fast with appropriate architecture.
• Comfort working with founders and non‑technical stakeholders.
• Experience refactoring or hardening an early‑stage codebase.
• Product analytics tooling such as Amplitude or PostHog.
• Comfort using AI coding tools as part of daily workflow.
• Strong communication and proactive blocker identification.

Responsabilidades

• Understand and evaluate the current architecture of the partner's web platform.
• Refactor and harden the codebase to support rapid, reliable iteration.
• Build new features end-to-end with UX and engagement focus.
• Establish lightweight technical processes (code review, deployment, documentation).
• Collaborate with the product manager and design lead in a fast-moving startup.
• Extend work into mobile development as the roadmap evolves.

Conocimientos

Full-stack engineering

React/Next.js

Node.js

API design

PostgreSQL

Amplitude

English communication

AI coding tools

Herramientas

Amplitude

PostHog

Descripción del empleo

About Katapult Labs
Katapult 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 Role

We'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 Responsibilities

• Understand and evaluate the current architecture of our partner\'s existing web platform
• Refactor and harden the codebase to support rapid, reliable iteration
• Build new features end-to-end, working closely with the product lead on UX and engagement-focused functionality
• Help establish lightweight technical processes (code review, deployment, documentation) as the team scales
• Collaborate directly with a technical product manager and design lead in a fast-moving, startup environment
• Be ready to extend work into mobile development as the product roadmap evolves

Requirements

• Advanced conversational English, since all collaboration happens in English
• Strong 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-engineering
• Comfort working directly with founders and non-technical stakeholders, translating product vision into working software
• Experience refactoring or hardening an existing early-stage codebase
• Product analytics tooling (Amplitude, PostHog, or similar)
• Agentic mindset: comfortable using AI coding tools (Cursor, Claude Code, etc.) as part of daily workflow
• Strong communication skills, comfortable asking clarifying questions and flagging blockers early

Nice to Have

• Prior experience building consumer-facing (B2C) products with high user engagement
• Mobile development experience (native or cross-platform)
• Experience working in a 0-to-1 startup environment alongside a small, fast-moving team

Work-Life Balance

• Work 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 Holidays

Financial Benefits

• Monthly 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.