Lead Data Engineer

Job Description Lead Data Engineer

Deliberate AI Hybrid (NYC or Boston) Full-Time

We're a venture-backed company at the frontier of precision mental health. In partnerships with some of the world's top ranked medical schools and psychiatric hospitals, we've secured non-dilutive funding from the NIH, ARPA-H, DARPA, the FDA and the Wellcome Trust. We're deploying multimodal AI systems in clinical trials and healthcare settings across four continents - and we're hiring the engineering team to build what comes next.

A patient wears an Oura ring to sleep. Their phone picks up a shift in activity patterns overnight. The next morning, a conversational AI agent conducts a brief voice-based check-in - and the vocal features, facial action units, and linguistic markers from that session all flow into the same clinical picture alongside the wearable data. Your job is to make sure every one of those signals - from raw sensor stream to clinically meaningful feature - arrives reliably, on time, and at quality.

You'll architect and own the data infrastructure across all clinical data modalities: audio-visual features from conversational assessments, wearable biometrics, passive mobile sensing, and the feature pipelines that prepare them for fusion in our multimodal ML models. You'll also own the overall data architecture - how data flows into and through Deliberate AI, how it's stored, cataloged, and governed, and how it scales as we deploy across clinical trial sites on four continents.

This isn't just a pipeline‑building role; it's defining the technical strategy for how clinical data works at a company building the future of precision mental health care.

You've built multi‑modal data infrastructure before and you know what it takes to make it reliable  get equally excited about audio signal processing and wearable API integrations - and you understand that both feed into the same clinical picture. You care about signal quality and data integrity because you know that downstream, a missed feature or a noisy pipeline affects whether a patient's symptoms get caught early or missed entirely.

You're serious about privacy, opinionated about architecture, and you want to define the technical strategy for clinical data engineering - not just execute someone else's.

• Design and implement the overall data architecture for ingestion, storage, cataloging, and governance of all clinical datasets - audio, video, wearable, mobile sensing, and physiological data from clinical sites worldwide
• Build and maintain API integrations with commercial wearable devices (e.g. Oura Ring, Fitbit) to collect raw sensor streams (HRV, sleep stages, activity, heart rate) and engineer biometric features
• Develop systems to capture and process passive mobile signals that trigger adaptive assessments, including real‑time streaming and synchronization across modalities
• Build automated QA systems to detect missing data, sensor failures, and anomalous readings - with data lineage tracking, pipeline observability, monitoring, alerting, and incident triage so problems are caught and resolved before they affect downstream models or clinical decisions
• Design participant monitoring systems with automated data completeness checks, device health monitoring, and alert mechanisms supporting global deployment
• Implement reliable incremental load patterns - idempotent runs, backfill strategies, and late‑arriving data handling - so the platform stays correct as clinical sites come online across time zones and connectivity conditions
• Evaluate and select the core data stack - orchestration, warehousing, transformation, and observability tooling - and own those decisions as the foundation the team builds on

Growth trajectory
:
As Deliberate scales, you'll define the data platform that an expanding team of data engineers builds on - shaping the architecture, standards, and tooling for clinical data engineering in precision mental health.

• Have significant experience in data engineering, including hands‑on work in at least two of: audio/video processing, IoT/wearables, or mobile sensing
• Hav…