Note: The job is a remote job and is open to candidates in USA. Affinity Solutions is the leading consumer purchase insights company, providing a comprehensive view of consumer spending through proprietary AI technology. They are seeking a Sr. Data & AI Application Engineer to drive the architecture and development of a unified platform for insights and audience building, utilizing large-scale data and AI.
Responsibilities
- 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
Skills
- 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)
- 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
Benefits
- Benefits for full-time employees of Affinity Solutions begin on the first of the month following your date of hire with a generous employer contribution for medical, dental, and vision
- Company paid holidays
- Wellness time off
- Other wellness benefits
- Employee discounts
- Employer paid life insurance
- Option to enroll into an employer-matched 401K Plan
- Unlimited vacation days, available starting 90 days from your hire date as a team member
Company Overview
Affinity Solutions offers technology, analytics, data processing, and business services for customers. It was founded in 2005, and is headquartered in New York, New York, USA, with a workforce of 51-200 employees. Its website is https://www.affinity.solutions.Company H1B Sponsorship
Affinity Solutions has a track record of offering H1B sponsorships, with 4 in 2026, 11 in 2025, 22 in 2024, 6 in 2023, 6 in 2022, 9 in 2021, 4 in 2020. Please note that this does not guarantee sponsorship for this specific role.