Applied AI Engineer | Production AI & LLM Systems | $170K-$230K + Equity
Purple Cow Recruiting · NY, US
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About the Role
This is an early engineering role focused on building production AI systems that directly impact marketplace growth, operational efficiency, revenue, and overall marketplace quality. The Applied AI Engineer will work directly with the founder/CEO and own AI initiatives from idea and architecture through deployment, evaluation, and continuous iteration.
Responsibilities
- Own AI projects end-to-end, from defining the business problem and selecting the appropriate model through deployment, evaluation and iteration
- Build production AI systems supporting candidate-to-job matching and marketplace optimization
- Develop intelligent automation to replace or improve manual marketplace workflows
- Build AI-powered classification, extraction, content generation and search capabilities
- Develop evaluation and experimentation systems focused on accuracy, consistency and measurable results
- Build production AI functionality informed by real-world user feedback
- Develop tooling and infrastructure that accelerate AI development and iteration
- Connect technical decisions and AI capabilities to measurable business outcomes
Requirements
- 4+ years of engineering experience REQUIRED
- Meaningful experience shipping AI/LLM features into production REQUIRED
- Experience owning AI projects end-to-end REQUIRED
- Strong understanding of model selection, data pipelines, deployment and iteration REQUIRED
- Experience with LLM APIs, embeddings, vector databases and fine-tuning REQUIRED
- Strong foundation in full-stack web development REQUIRED
- Ability to connect technical decisions to measurable business outcomes REQUIRED
- Must be legally authorized to work in the United States without sponsorship REQUIRED
- Early-stage or high-growth startup experience Preferred
- Founding-team engineering experience Preferred
- Recruiting or talent industry experience Preferred
- Experience building marketplace, matching, search or recommendation systems Preferred
Skills
- Model selection
- Prompt engineering
- Fine-tuning
- LLM evaluation
- Embeddings
- Vector databases
- AI experimentation
- Data pipelines
- APIs
- Backend services
- Product integrations
- UI integration
- AI-powered product features
- Production infrastructure
Location
- New York, NY
Work Type
- Full-Time
- Hybrid - Approximately 3 Days/Week In Office
Experience Level
- 4+ years of engineering experience
Salary/Compensations
- $170,000-$230,000 base salary
Benefits
- Equity
- Relocation support available for strong candidates
About the Company
- Heartline Staffing is recruiting an Applied AI Engineer for a high-ownership opportunity with a growing technology company in New York City.