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# Sr. Data & AI Application Engineer (59_2026.2)

- **Company:** Affinity, Inc.
- **Location:** New York, NY, United States
- **Experience:** Expert
- **Salary:** $165,000 - $180,000
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon Elastic Compute Cloud, Software Applications, ARM Architecture, JIRA, User Authentication, Big Data, BigQuery, Software as a Service, Software Quality, Information Systems, Cursor, Programming Tools, Python (Programming Language), Machine Learning, Node.Js, Object-Oriented Software Development, OpenAI, Cloud Services, Microsoft Copilot, Next.js, Software Engineering, Data Processing, Scripting, Feature Engineering, Chatbots, ReactJS, Large Language Models, Claude Code, Snowflake, Differential Privacy, Agentic-AI, Git, Data Layers, Information Technology, Privacy-preserving Technologies, Bitbucket, Front End Software Development, Claude, Virtual Agents, Restful APIs, Streamlit Framework, Data Pipelines
- **Published:** November 9, 2026
- **Apply:** https://www.careerbuilder.com/job-details/sr-data-ai-application-engineer-59-2026-2-new-york-ny--ebfab9fd-d7ae-485f-9fb7-3d19a430a1a3

## About the Role

Artificial Intelligence (AI), Software Engineering, Artificial Intelligence (AI), Marketing, Customer Relations, Intellectual Property (IP), Customer/Client Research, Software Engineering, Leadership, Software as a Service (SaaS), * BS or MS in Computer Science, Data Science, or Information Systems

 * 6-8 years of proven experience architecting and shipping an enterprise-level application with a polished UI and dependencies on embedded/third-party SaaS services
 * 3-6 years experience with Node.js, Next.js, and React
 * Strong SQL expertise including CTEs, window functions, and complex aggregations
 * 3-6 years of Python experience (data processing, scripting, APIs, OOP)
 * Experience with cloud data platforms (Snowflake, BigQuery, or Redshift)
 * At least 3 years building REST APIs and data pipelines
 * Familiarity with authentication/SSO systems (e.g., AWS Cognito)

Preferred:

 * Experience with GenAI developer tools (e.g., Copilot, Cursor, Claude Code) or agent frameworks
 * Hands-on experience with Snowflake Cortex, Snowpark, or Streamlit
 * Familiarity with LLM APIs (OpenAI, Anthropic Claude) and prompt patterns
 * Experience with ML models (classification, feature engineering, calibration techniques)
 * Knowledge of data privacy frameworks (clean rooms, differential privacy, PETs)
 * Experience with Slack Bolt, AWS EC2, and deploying Python services
 * Familiarity with MCP servers or AI agent orchestration
 * Experience analyzing large-scale datasets (100M+ rows)
 * Background in AdTech, MarTech, audience segmentation, or marketing analytics

## Description

* Lead front-end architecture and development using React and Next.js (Node.js)
 * Design and implement enterprise-grade systems integrating with third-party platforms (e.g., Snowflake, ThoughtSpot)
 * Build and manage data pipelines, Snowflake clean rooms, and semantic layers
 * Develop AI-powered applications, including chatbots, MCP integrations, and API-connected tools
 * Support audience modeling workflows including model training, scoring, calibration, and enrichment
 * Build measurement frameworks and embedded BI dashboards (e.g., ThoughtSpot)
 * Execute custom analytics requests: segmentation, overlap analysis, behavioral profiling, and ad hoc data pulls
 * Prototype R&D initiatives in privacy-preserving technologies and AI agent orchestration
 * Establish engineering standards, contribute to code quality, and guide architectural decisions
 * Manage development processes using Git/Bitbucket and JIRA branching workflows