Full Stack Developer (Backend focus)

About Katapult

Katapult is a nearshore software development agency that combines the best talent in LATAM with world-class execution and leadership experience, and an AI-first approach to product engineering. Katapult works with PMF+ startups and businesses in the United States with a team-augmentation model. That means we either become or augment their current product engineering team.

The Role

We are looking for a solid Full Stack Engineer (Backend focus) to join our team with a specific mission: bridging the gap between innovative experimentation and scalable production. Your primary focus will be taking successful prototypes and high-impact features particularly those involving WhatsApp integrations and seamlessly embedding them into our core product architecture. You will work closely with our experimentation leads and the Director of Engineering to ensure that every new feature meets the highest standards of quality, security, and maintainability.

Responsibilities

• WhatsApp Integration: Lead the implementation and maintenance of robust WhatsApp API functionalities to ensure reliable communication flows.

• Productionizing Experiments: Take validated "MVP of the MVP" concepts and transform them into stable, scalable, and well-documented features within the main platform.

• Core Development: Design, develop, and maintain high-quality backend services that serve as the foundation of our product.

• Engineering Collaboration: Work side-by-side with the experimentation team and the Director of Engineering to align technical hand-overs with product goals.

• Quality Assurance: Ensure all new features meet rigorous standards through testing, code reviews, and adherence to software engineering best practices.

Requirements

• Excellent English and communication skills

• Proven professional experience as a Backend or Full Stack Engineer (purely frontend profiles will not be considered).

• Mandatory and demonstrable experience with WhatsApp API integrations in previous professional projects.

• Strong proficiency in building and deploying production-grade applications with a focus on maintainability.

• Ability to write clean, efficient code and document logic for long-term scalability.

• A collaborative mindset with the ability to work effectively in a high-growth, fast-paced setting.

Nice to have

• Strong experience with Python for backend development.

• Previous experience in startups or fast-paced environments where speed and quality must be balanced.

• Knowledge of cloud infrastructure and CI/CD pipelines.

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.