Full Stack Engineer - AI

# Full Stack Engineer - AI

> Walter · New York, United States · — · Posted 2025-10-07

**Salary:** USD 200,000–270,000

**Workplace:** on_site

**Department:** Toptal

## Description

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.

## Requirements

• 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.

## Benefits

• 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

## Apply
[Apply at Walter](https://apply.workable.com/walter-careers/j/655C39C479/apply)
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