Only W2: Data & AI Application Engineer/Platform Team Lead, 100% Remote

**Sr. Data & AI Application Engineer/Platform Team Lead

Silicon Valley/NY or Remote

Note: for this requirement we need only W2 profiles** About The Role We re looking for a senior, technically curious full-stack engineer to lead development of the platform our team is building a unified UI for Insights, Audience Building, and Measurement powered by large-scale data and AI.

This is a hands-on senior/lead role. You ll set technical direction, own architecture decisions, and work alongside other engineers on real production systems not toy projects spanning Snowflake data clean rooms, AI-powered chatbots, lookalike audience modeling, measurement analytics, data insights, and emerging R&D initiatives. You ll be the kind of engineer who has shipped enterprise-grade applications before and knows how to integrate cleanly with embedded third-party SaaS services without creating a fragile mess.

This role is ideal for someone who asks, why does this work? not just does it work? and who s energized by owning a platform end to end.

Responsibilities Lead the design and front-end development of our platform UI (Insights, Audience Building, Measurement) using React and Node.js (Next.js preferred)

Architect enterprise-grade systems with clean dependencies on embedded/third-party SaaS services (e.g. Snowflake, Thoughtspot)

Design and build data pipelines, clean room configurations, and semantic layer definitions on Snowflake

Develop and maintain AI-powered chatbots, MCP integrations, and Slack/API-connected tools

Support audience modeling workflows including model training, scoring, calibration, and attribute enrichment and audience distribution

Build measurement frameworks, dashboards, and reporting pipelines (e.g., ThoughtSpot embedded) to surface insights from large-scale datasets

Fulfill custom data and analytics requests segmentation, overlap analysis, behavioral profiling, and adhoc pulls

Prototype and document R&D initiatives around privacy-preserving computation and AI agent orchestration

Set engineering conventions, mentor teammates, and help guide technical decisions for the platform

Build clean, documented code and manage work through Git/Bitbucket with JIRA-based branching conventions

Required Qualifications BS or MS in Computer Science, Data Science, or Information Systems, with 6 8 years of related experience

Proven experience architecting and shipping an enterprise-level application with a polished UI and dependencies on embedded/third-party SaaS services

3 6 years building big-data-driven web applications with Node.js, Next.js, and React

Strong proficiency in SQL comfortable writing complex queries, window functions, CTEs, and aggregations

3 6 years of Python programming data manipulation, scripting, API calls, and basic OOP

Exposure to at least one cloud data platform (Snowflake, BigQuery, or Redshift)

At least 3 years of REST API and data pipeline experience

Familiarity with SSO, authentication, and identity concepts (e.g., AWS Cognito)

Ability to work independently, manage your own time, and communicate clearly in a fully remote environment

Preferred Qualifications Experience building with GenAI coding and agentic developer tools (e.g., Amazon Kiro, Claude Code, Cursor, Copilot, or agent orchestration frameworks) a big plus

Hands-on experience with Snowflake Cortex, Snowpark, or Streamlit

Familiarity with LLM APIs (Anthropic Claude, OpenAI) and prompt engineering patterns

Exposure to ML classification models, feature engineering, Platt calibration, or model evaluation techniques

Knowledge of data privacy concepts data clean rooms, differential privacy, or privacy-enhancing technologies (PETs)

Experience with Slack Bolt, AWS EC2, or deploying Python applications to cloud infrastructure

Familiarity with MCP servers or AI agent orchestration frameworks

Experience working with large-scale behavioral or transaction datasets (100M+ rows)

Background in Adtech/Martech, marketing analytics, audience segmentation, or measurement not required, but a strong bonus, since it s the vertical our platform serves

Tech Stack You ll Touch Snowflake, Snowpark Python, Snowflake Cortex, Streamlit, Python, SQL, ThoughtSpot BI, Next.js, React, Node.js, AWS Cognito, Claude API, Model Context Protocol (MCP), Slack Bolt, AWS …