Ellen Sebastian

Senior Software Engineer at Verily Life Sciences
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Contact Information
us****@****om
(386) 825-5501
Location
Boulder, Colorado, United States, US

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Experience

    • United States
    • Hospitals and Health Care
    • 700 & Above Employee
    • Senior Software Engineer
      • Aug 2020 - Present

      South San Francisco, California, United States Improving & scaling the Baseline Clinical Studies Platform.

    • Google.org Fellow / Senior Software engineer
      • Oct 2019 - Present

      • Fixed-term collaboration between Google.org & Médecins Sans Frontières (Doctors Without Borders) • As part of a 5-eng team, built ASTapp (bit.ly/2NtRwAU), an android app that captures & analyzes images of petri dishes to perform Antibiotic Sensitivity Tests in low-resource hospitals. • Trained ML models (CNNs) using Python+Tensorflow to recognize specific shapes on petri dish images. Published results to WHO AI focus group. • Created benchmarking pipeline to evaluate computer vision… Show more • Fixed-term collaboration between Google.org & Médecins Sans Frontières (Doctors Without Borders) • As part of a 5-eng team, built ASTapp (bit.ly/2NtRwAU), an android app that captures & analyzes images of petri dishes to perform Antibiotic Sensitivity Tests in low-resource hospitals. • Trained ML models (CNNs) using Python+Tensorflow to recognize specific shapes on petri dish images. Published results to WHO AI focus group. • Created benchmarking pipeline to evaluate computer vision algorithms. Show less

    • United States
    • Software Development
    • 700 & Above Employee
    • Senior Software Engineer
      • Mar 2019 - Present

      Mountain View Google Play User Growth Team Mar 2019 - Oct 2020: Senior Software Engineer L5 Sep 2018 - Mar 2019: Software Engineer L4 Jun 2017 - Sep 2018: Software Engineer L3 • Built & launched Google Play Points (bit.ly/2Z4PZsZ) bug-free from as part of a team of 10 engineers, in 9 months from the ground up. • Built & maintained scalable (>100k QPS), distributed, low-latency, fault-tolerant infrastructure to allow users to earn & spend points. Used Java, Android, microservices, &… Show more Google Play User Growth Team Mar 2019 - Oct 2020: Senior Software Engineer L5 Sep 2018 - Mar 2019: Software Engineer L4 Jun 2017 - Sep 2018: Software Engineer L3 • Built & launched Google Play Points (bit.ly/2Z4PZsZ) bug-free from as part of a team of 10 engineers, in 9 months from the ground up. • Built & maintained scalable (>100k QPS), distributed, low-latency, fault-tolerant infrastructure to allow users to earn & spend points. Used Java, Android, microservices, & relational databases. Demos: bit.ly/2Z7CMyJ • Team Lead: Led 5 engineers to parallelize & accomplish large projects. • Collaborated closely with product managers, local business experts, UX designers, and other engineers to lock down product requirements and make tradeoffs between velocity, elegance, and product excellence. • Extended Google Play Promotions Platform by implementing several new promotional types. • On-call: Production rollout, monitoring, logging, debugging, bug triage. • Mentored 3 interns.

    • Software Engineer
      • Jun 2016 - Mar 2019

      Mountain View, California Jan 2019 - Present: Google Play Loyalty team June 2016 - Dec 2018: Google Play Promotions team

    • United States
    • Higher Education
    • 700 & Above Employee
    • CS210 Course Assistant
      • Jan 2016 - Jun 2016

      Stanford, CA • Helped organize CS210: Software Project Experience with Corporate Partners (cs210.stanford.edu) under instructor Jay Borenstein • Organized class, event, & travel logistics • Advised corporate partners and student teams

    • United States
    • Higher Education
    • 700 & Above Employee
    • Graduate Research Assistant
      • Sep 2015 - Jun 2016

      Stanford, CA Working with Prof. Robert Shafer in the department of infectious diseases and graphical medicine to extend, refactor and maintain HIVdb (hivdb.stanford.edu), a tool that enables clinicians and researchers to predict HIV drug resistance from viral genetic sequences.

    • United States
    • Software Development
    • 700 & Above Employee
    • Software Engineering Intern
      • Jun 2015 - Sep 2015

      Mountain View • Main contributor to the design, implementation & rollout of full-stack Google Express Operator Profile feature, which manages the lifecycle of Google Express operators (onboarding, viewing & editing, offboarding). • Built Java APIs and effected F1 & MySQL schema changes to support Operator Profile backend. • Built several frontend workflows in AngularDart.

    • United States
    • Higher Education
    • 700 & Above Employee
    • Graduate Teaching Assistant
      • Apr 2015 - Jun 2015

      Stanford, CA • TAed CS103: Mathematical Foundations of Computing with instructor Keith Schwartz • Assisted students during office hours • Proctored and graded exams and assignments • Developed grading critera

    • United States
    • Wellness and Fitness Services
    • 1 - 100 Employee
    • Software Engineering Intern (Data team)
      • Jun 2014 - Sep 2014

      Palo Alto, CA • Implemented APIs for importing, storing and presenting data from external sources (e.g. Apple HealthKit) into HealthTap application • Developed infrastructure to statistically analyze and display the results of A/B tests • Created Data Dashboards to automatically collect and display company metrics from diverse sources in real time • Participated in extensive product QA

    • Student Researcher
      • Oct 2012 - Jun 2014

      Stanford University, Department of Microbiology & Immunology • Implemented statistical programs in R for microarray normalization, background subtraction, filtering, and quality control • Assisted senior researchers in the analysis of transcriptome-wide expression data to assess the immunogenicity and efficacy of experimental Dengue fever vaccines • Assisted in grant-writing process • Independently investigated the role of PPARG activity and alternative macrophage activation in Typhoid fever outcomes

    • Summer Intern
      • Jun 2013 - Sep 2013

      Bethesda, MD • Performed eQTL mapping on miRNA expression traits to generate hypotheses regarding the regulation of miRNA expression • Designed replicable pipeline for various data-processing and filtering tasks

    • Summer research student
      • May 2012 - Jul 2012

      Stanford University, Department of Genetics • Investigated allele-specific expression of intronic SNPs linked to extreme longevity to identify regulatory regions of FOXO3 gene and characterize its role in longevity • Performed Taqman qPCR, RT-PCR, DNA sequencing • Designed and performed experiments independently

    • Research assistant
      • Oct 2011 - May 2012

      Stanford University, Department of Genetics • Performed PCR and gel electrophoresis for mouse genotyping

Education

  • Stanford University
    M.S., Computer Science - Information Management track
    2014 - 2016
  • Stanford University
    B.S., Computer Science - Biocomputation track
    2011 - 2015

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