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David Sigal

Executive-level Software Engineering Leader specializing in Healthcare AI

Phoenix AIUC Santa BarbaraLos Angeles, CA15 Years ExperienceExecutive LevelWorks On-Site

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About

Backend engineer who has built end-to-end data and platform systems across domains: a Scala/Java media data warehouse with a custom query language and Elasticsearch search, plus production security patterns (RBAC, RLS, audit trails) including a telehealth platform. Also demonstrated strong operational rigor by using feature-flagged side-by-side migrations and by catching ecommerce checkout edge cases that were dropping revenue.

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Key Strengths

  • Designed and built a media data warehouse with ingestion, storage, query compiler, and search index
  • Cost-focused architecture decisions (AWS selection; open-source Elasticsearch vs commercial)
  • Storage tiering strategy based on data age to balance latency/availability vs cost
  • Security-first API approach (schemas, best-practice auth, encryption, audit trails/logging)
  • Risk-managed migrations using side-by-side deployments, feature flags, and data integrity verification
  • Implemented RBAC for a telehealth platform with auditability and domain-aware permissions
  • Identified ecommerce checkout failure modes causing revenue loss and added upstream data validation (e.g., shipping data)

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Experience

FounderPhoenix AI · Jun 2024 – Sep 2025
Team LeadRocket Doctor · Jan 2021 – May 2024
OwnerSigal Consulting · Sep 2016 – Dec 2020freelance
Senior Software EngineerDrop · Apr 2015 – Aug 2016
Senior Software EngineerZignal Labs · Aug 2012 – Mar 2015
Software EngineerEnder Technology · Aug 2010 – Jul 2012

Education

UC Santa Barbarabachelor, Computer Science (2010)

Languages

English

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David SigalExecutive-level Software Engineering Leader specializing in Healthcare AI