Toptal: Full Stack Engineer – AI

The client is building an elite AI engineering team in New York City to develop and scale breakthrough AI-powered products that will impact millions of users. The environment is designed like a cutting-edge AI lab, combining innovation with the distribution power of their broader ecosystem. The team consists of highly talented AI engineers, Full-stack Engineers, product managers, and designers focused on pushing the boundaries of what AI can deliver to end users.

General information
They are seeking exceptional engineers who have shipped AI features that users actively use in production. The ideal developer is full-stack capable, thrives in fast-paced, highly collaborative environments, and is passionate about creating seamless user experiences powered by AI.

Task and Deliverables

• Build and ship user-facing AI features across multiple products, including content creation tools, e-commerce recommendations, and messaging experiences.
• Rapidly prototype and iterate AI-powered solutions, evolving them into production-ready systems.
• Collaborate closely with product managers, designers, and fellow engineers to design, implement, and scale innovative features.
• Stay ahead of AI advancements and leverage them to unlock new user experiences.
• Contribute to the technical vision and strategy for scaling AI products across the ecosystem.

• Proven track record of shipping AI features into production with real user adoption.
• Hands-on experience with large language models (LLMs), whether via APIs or custom implementations, at scale.
• Strong full-stack development skills (PHP, Python, or JavaScript).
• Ability to build performant AI-powered user interfaces.

Nice to have

• Experience developing consumer AI products that scaled to large user bases.
• Strong PHP experience
• Familiarity with WordPress, e-commerce platforms, or messaging systems.
• Open-source contributions that showcase technical depth and innovative thinking.

• Join a carefully selected team of some of the most talented minds in AI and product development.
• Open to on-site and Remote candidates
• Ship products that will directly impact millions of users across a diverse ecosystem.
• Opportunity to be part of an elite AI lab with the scale and reach of a global platform
• Long-term, Full-time position