Senior AI/ML Full Stack Engineer

Overview

Senior AI/ML Full Stack Engineer - Remote - Latin America

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About FullStack

FullStack is the most transparent IT talent network, connecting highly skilled individuals with top global companies and Silicon Valley startups for remote, on-demand projects. We focus on building a trusted, high-performance network where talent can thrive in a positive, respectful, and supportive environment. By prioritizing transparency, fair opportunities, and professional growth, we empower our engineers to deliver their best work while collaborating with innovative teams worldwide.

What We Offer

• Competitive pay.
• 100% remote work.
• The ability to work with leading startups and Fortune 500 companies.
• Continuing education opportunities
• Opportunity to grow and expand your career

Our talent network is committed to fostering a diverse, inclusive, and accessible environment where IT professionals can find opportunities that match their skills. We welcome individuals of all races, religions, genders, sexual orientations, national origins, abilities, and experiences. Our focus is on connecting talent with projects based on qualifications, ensuring a fair and transparent process that values diverse perspectives and global collaboration.

Learn more about our Applicants Privacy Notice.

The Opportunity

Join our talent network and connect with U.S. clients for flexible, project-based development work as a Senior AI/ML Full Stack Engineer.

• You will integrate directly into our client's team and work alongside their existing designers and engineers on a daily basis.

What We're Looking For

• 5+ years of professional experience as a Full-Stack Engineer, AI/ML Engineer, or in a similar role.
• Advanced English is required.
• Successful completion of a four-year college degree is required.
• Proven track record of shipping 0-to-1 products and scaling them to hundreds of thousands of users. Side projects or open-source contributions are highly valued.
• Deep hands-on fluency with the modern AI development stack, including Cursor, LLMs, and AI agent frameworks (e.g., OpenCode, Aider, Void).
• Strong experience integrating, debugging, and monitoring LLMs in real-world applications, including prompt engineering, cost optimization, latency management, and evaluation frameworks.
• Proficiency in designing and developing APIs (REST, GraphQL), databases (PostgreSQL), and user-facing services.
• Solid experience in building, deploying, and scaling AI/ML solutions in production environments.
• Familiarity with evaluation frameworks for AI features (e.g., Langfuse, Helicone, Lunary).
• Ability to work through new and difficult issues and contribute to libraries as needed.
• Ability to create and maintain continuous integration and delivery of applications.
• Forensic attention to detail.
• A positive mindset and a can-do attitude.
• Experience working on Agile / Scrum teams.
• Meaningful experience working on large, complex systems.
• Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon.
• Ability to identify with the goals of FullStack's clients, and dedicate yourself to delivering on the commitments you and your team make to them.
• Ability to consistently work 40 hours per week.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology

Industries

• IT Services and IT Consulting
• Computer and Network Security
• Information Services

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