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

Job Description

Affinity Solutions Affinity is the leading consumer purchase insights company We provide a complete view of US and UK consumer spending across and between brands via exclusive access to fully permissioned data from over 100 million consumers Our proprietary AI technology Comet transforms these purchase signals into actionable insights for business and marketing leaders to drive optimal outcomes and build lasting customer relationships Visit wwwaffinitysolutionscom to discover how were shaping the future of consumer purchase insights About Your Role We are hiring a Sr Data \& AI Application Engineer to drive the architecture and development of a unified platform for Insights Audience Building and Measurement powered by large scale data and AI This is a hands on leadership role where you will own system design decisions and build production grade applications that integrate with modern data platforms and third party SaaS tools Your Responsibilities Lead front end architecture and development using React and Nextjs NodejsDesign and implement enterprise grade systems integrating with third party platforms eg Snowflake ThoughtSpotBuild and manage data pipelines Snowflake clean rooms and semantic layersDevelop AI powered applications including chatbots MCP integrations and API connected toolsSupport audience modeling workflows including model training scoring calibration and enrichmentBuild measurement frameworks and embedded BI dashboards eg ThoughtSpotExecute custom analytics requests segmentation overlap analysis behavioral profiling and ad hoc data pullsPrototype R\&D initiatives in privacy preserving technologies and AI agent orchestrationEstablish engineering standards contribute to code quality and guide architectural decisionsManage development processes using GitBitbucket and JIRA branching workflowsYour Qualifications BS or MS in Computer Science Data Science or Information Systems68 years of proven experience architecting and shipping an enterprise level application with a polished UI and dependencies on embeddedthird party SaaS services36 years experience with Nodejs Nextjs and ReactStrong SQL expertise including CTEs window functions and complex aggregations36 years of Python experience data processing scripting APIs OOPExperience with cloud data platforms Snowflake BigQuery or RedshiftAt least 3 years building REST APIs and data pipelinesFamiliarity with authenticationSSO systems eg AWS CognitoPreferred Experience with GenAI developer tools eg Copilot Cursor Claude Code or agent frameworksHands on experience with Snowflake Cortex Snowpark or StreamlitFamiliarity with LLM APIs OpenAI Anthropic Claude and prompt patternsExperience with ML models classification feature engineering calibration techniquesKnowledge of data privacy frameworks clean rooms differential privacy PETsExperience with Slack Bolt AWS EC2 and deploying Python servicesFamiliarity with MCP servers or AI agent orchestrationExperience analyzing large scale datasets 100M rowsBackground in AdTech MarTech audience segmentation or marketing analyticsTech Stack Snowflake Snowpark Snowflake Cortex Streamlit Python SQL ThoughtSpot Nextjs React Nodejs AWS Cognito Claude API MCP Slack Bolt AWS EC2 Bitbucket JIRA GenAI tools Salary Range 165000 180000 Office Hours 9am 530pm 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 In addition to company paid holidays wellness time off other wellness benefits and employee discounts you will also get employer paid life insurance and have the option to enroll into an employer matched 401K Plan We strongly encourage worklife balance by providing unlimited vacation days available starting 90 days from your hire date as a team member