Full Stack Developer

Department: Katapult Internal

Location: Colombia

Employment Type: FullTime

Senior Full-Stack Engineer ( AI-Powered Platform)

About Katapult Labs

Katapult Labs brings together exceptional LATAM talent and leading-edge technology to help scale U.S. startups. With an AI-first approach, we create world-class solutions in product, engineering, and business growth. We partner with top founders from networks like 8VC and Action Capitals experienced operators building venture-backed companies.

Project and Role Overview

Join us as we build a next-generation platform from the ground up, tailored for tastemakers, travel agents, and content influencers. Our mission is to leverage AI-powered features and seamless system-level integrations. As a Senior Full-Stack Engineer, you will enjoy both technical and creative freedom while exploring, prototyping, and delivering innovative solutions in a true greenfield environment.

In this pivotal role, you'll contribute to all phases of platform design and development, working closely with Product and Engineering Leads to translate complex business rules into scalable, high-quality code. This role is perfect for developers who excel with autonomy, enjoy building intuitive user experiences, and have a proven background in robust backend microservices development.

Responsibilities

• Architect and Build: Design, develop, and maintain scalable full-stack applications using TypeScript, React, Node.js (NestJS/Fastify/Express), and PostgreSQL.

• AI Implementation: Create AI/LLM-powered features that enhance productivity and personalization for end-users.

• System Integration: Integrate the platform with third-party services such as Salesforce, Shopify, Google, and Microsoft to enable efficient data exchange and secure authentication workflows.

• Technical Leadership: Lead experiments and proof-of-concepts, upholding code quality through rigorous testing (Jest, React Testing Library) and thorough peer reviews.

• Collaboration: Engage actively in agile methodologies (Scrum) to manage timelines, prioritize work, and deliver high-impact milestones.

• Growth & Mentorship: Mentor team members, optimize codebase performance, and uphold best practices in software architecture.

Requirements

• Full-Stack Expertise: Strong professional experience with TypeScript, React (Next.js), and Node.js frameworks, including NestJS or Fastify.

• Backend Mastery: Demonstrated ability to architect and implement microservices and manage complex database interactions.

• Product Delivery: Proven history of shipping products end-to-end (greenfield to production) aligned with client business requirements.

• Testing & Quality: Solid grasp of testing frameworks (Jest) and commitment to high code quality.

• Experience with Integrations: Direct experience connecting platforms to external systems and managing secure authentication (AWS Cognito/OAuth).

• Agile Mindset: Comfortable thriving in early-stage, high-autonomy environments with rapid iteration cycles.

Nice to Have

• Cloud Infrastructure: Familiarity with AWS (Lambdas, Step Functions).

• Accessibility: Knowledge of Web Accessibility (A11y) best practices.

• UI Tooling: Experience with Storybook for component documentation and SASS for styling.

• Modern AI Stacks: Exposure to Vercel AI SDK, vector databases (Pinecone), or graph databases.

• Specialized Integrations: Prior work with Salesforce Sales, Service, or Health Clouds.

Perks

• Product Ownership: Help drive the product vision and technical direction from the start.

• Creative Freedom: Autonomy to experiment with new tech and propose innovative architectural ideas.

• High Impact: Contribute directly in a collaborative, startup-style environment where your work matters.

• Global Team: Join an innovative, diverse team building a groundbreaking platform for the creator economy.

What we offer:

We believe in empowering our team with flexibility, competitive benefits, and a supportive work environment. Here’s what we offer:

Work-Life Balance

• Work from Anywhere in Latin America: Enjoy the freedom to work remotely from any country in Latin America.

• 15 Days of PTO per Year: Take time to recharge with paid time off, accrued monthly (1.25 days/month).

• Country-Specific Federal Holidays: Celebrate your local holidays without using PTO.

• 8 Non-Cumulative Days Off per Year: Additional days off for personal needs or unexpected events.

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.

Work Setup & Wellness

• BYOD (Bring Your Own Device): Use your own equipment and receive $50/month as a rental stipend.

• Health Insurance Stipend: Get $75/month to support your health and wellness.