Katapult Labs, Inc. logo

Full Stack Developer (Backend focus)

Job Overview

Location

Indiana, USA

Job Type

Full-time

Category

Full-Stack Engineer

Date Posted

February 26, 2026

Full Job Description

📋 Description

  • Katapult Labs, Inc. is a dynamic nearshore software development agency renowned for its AI-first approach to product engineering, blending top-tier LATAM talent with world-class execution and leadership. We partner with PMF+ startups and established businesses in the United States, operating on a team-augmentation model where we either become an integral part of or enhance their existing product engineering teams.
  • We are seeking a highly skilled and motivated Full Stack Engineer with a strong backend focus to join our innovative team. This pivotal role is designed for an individual passionate about bridging the critical gap between groundbreaking experimentation and robust, scalable production environments. Your core mission will involve taking successful prototypes and high-impact features, particularly those leveraging WhatsApp integrations, and seamlessly embedding them into our core product architecture.
  • You will be instrumental in transforming validated "MVP of the MVP" concepts into stable, scalable, and meticulously documented features that become integral parts of our main platform. This requires a deep understanding of backend development principles and a keen eye for detail in ensuring the quality and maintainability of the code.
  • A significant aspect of your role will be leading the implementation and ongoing maintenance of sophisticated WhatsApp API functionalities. This ensures that our communication flows are not only reliable but also robust and secure, meeting the high standards expected by our clients and their users.
  • You will collaborate closely with our experimentation leads, providing crucial technical insights and ensuring smooth hand-overs from the experimental phase to production. This collaborative effort is key to aligning technical execution with overarching product goals and business objectives.
  • Working hand-in-hand with the Director of Engineering, you will contribute to the strategic direction of our product architecture. This involves designing, developing, and maintaining high-quality backend services that form the bedrock of our product offerings, ensuring they are built for long-term scalability and performance.
  • Your responsibilities extend to upholding the highest standards of quality assurance. This encompasses rigorous testing, thorough code reviews, and unwavering adherence to established software engineering best practices. You will be a champion for clean, efficient code and comprehensive documentation, ensuring that logic is clear and maintainable for future development and troubleshooting.
  • This role demands a proactive approach to problem-solving and a commitment to continuous improvement. You will be expected to identify potential challenges early, propose effective solutions, and contribute to a culture of technical excellence within the team.
  • The ideal candidate will possess a strong understanding of the full software development lifecycle, with a particular emphasis on backend systems, API design, and deployment strategies. Experience in fast-paced environments, particularly within the startup ecosystem, is highly valued, as it indicates an ability to balance speed with the critical need for quality and stability.
  • You will play a key role in ensuring that our product remains at the forefront of technological innovation, particularly in leveraging communication platforms like WhatsApp to enhance user engagement and business operations. Your contributions will directly impact the success and scalability of our clients' products.
  • This is an opportunity to make a significant impact within a growing company, working with cutting-edge technologies and collaborating with talented professionals from across Latin America. You will be empowered to take ownership of your work and contribute meaningfully to the development of innovative software solutions.

🎯 Requirements

  • Excellent English communication skills, both written and verbal, enabling effective collaboration with international teams and clients.
  • Proven professional experience as a Backend or Full Stack Engineer, with a demonstrable track record of building and deploying production-grade applications. Purely frontend profiles will not be considered.
  • Mandatory and demonstrable experience with WhatsApp API integrations in previous professional projects, showcasing a deep understanding of its functionalities and implementation.
  • Strong proficiency in building and deploying production-grade applications, with a primary focus on maintainability, scalability, and performance.
  • Ability to write clean, efficient, and well-documented code, ensuring clarity and long-term maintainability for complex logic.
  • A collaborative and proactive mindset, with the ability to thrive in a high-growth, fast-paced, and dynamic startup environment.

🏖️ Benefits

  • Work remotely from anywhere in Latin America, offering unparalleled flexibility and work-life balance.
  • 15 days of Paid Time Off (PTO) per year, accrued monthly (1.25 days/month), to ensure you have ample time for rest and personal pursuits.
  • Enjoy country-specific federal holidays in addition to PTO, allowing you to celebrate local traditions without impacting your vacation days.
  • Receive a monthly stipend of $50 for using your own device (BYOD), acknowledging the use of your personal equipment.
  • Benefit from a $75 monthly health insurance stipend to support your personal wellness and healthcare needs.
  • Stability through a contractor agreement with no end date, providing a secure and long-term professional engagement.
  • Receive monthly payments in USD, ensuring consistent and predictable compensation regardless of your location.

Skills & Technologies

Python
Backend
Remote

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Katapult Labs, Inc. logo
Katapult Labs, Inc.
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About Katapult Labs, Inc.

Katapult Labs is a technology company focused on developing advanced solutions for various industries. They specialize in areas such as artificial intelligence, machine learning, and data analytics to help businesses optimize operations, gain deeper insights, and drive innovation. Their platform offers tools for predictive modeling, process automation, and intelligent decision-making, catering to clients looking to leverage cutting-edge technology for competitive advantage. Katapult Labs aims to transform complex data into actionable strategies, empowering organizations to achieve their goals more efficiently and effectively through tailored technological applications and expert consulting services.

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