Chief Technology Officer
Current
Apr 2024 - Present
AeroLeads people directory · profile
Robert Stewart Email & Phone Number
CTO at Arbital Health
at
Arbital Health
1 work email found
@castlighthealth.com
7 phones found area 202, 415, and 510
LinkedIn matched
✓ Verified Jun 2026
4 data sources
Profile completeness 100%
Current company
Role
CTO at Arbital Health
Location
Oakland, California, United States
Who is Robert Stewart? Overview
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Quick answer
Robert Stewart is listed as CTO at Arbital Health at Arbital Health, based in Oakland, California, United States. AeroLeads shows a work email signal at castlighthealth.com, phone signal with area code 202, 415, 510, and a matched LinkedIn profile for Robert Stewart.
Robert Stewart previously worked as Chief Technology Officer at Arbital Health and Technical Advisor at Keen Insurance Services. Robert Stewart holds B. A., Physics, Philosophy from Rice University.
Company email context
Email format at Arbital Health
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{first_initial}{last}@castlighthealth.com
86% confidence
AeroLeads found 1 current-domain work email signal for Robert Stewart. Compare company email patterns before reaching out.
Profile bio
About Robert Stewart
R&D leader and software architect with extensive experience designing, developing, and deploying data-intensive healthcare applications that leverage machine learning. I’ve successfully managed large, distributed engineering teams and delivered large, complex products to production on time and on budget. I have experience building and scaling large health tech platforms and am passionate about making a difference through delivering better healthcare. I believe strongly in DEI and feel deeply accountable for helping everyone around me be as productive, happy, and successful as possible.Technical Specialties: Leadership and mentoring of technical teams, software architecture, data engineering, machine learning, product design, analytics, project execution, data-driven decision making, distributed systems, scalability, performance, security, Java, Python, MySQL, MongoDB, Linux, speech recognition applications, open source software licenses, and technical presentations.2020* Moments that Matter: Creating a Personalized Experience with Machine Learning at AHIP Institute & Expo Online2019* Demystifying Machine Learning and Artificial Intelligence for Health Benefits webinar* Healthcare technology panel at F50 Global Capital Summit in Palo Alto* Speaker at and on a healthcare technology panel at the Global Big Data Conference in Santa Clara* Speaker at AI in Healthcare Summit at DataX in San Francisco (Segmentation of users by health condition and prediction of future diagnoses)2018* Engineering People Podcast* Speaker at SF CTO Summit2017* Tech People Podcast2016* Speaker at Data Dialogs Conference at UC Berkeley (Machine Learning at Castlight)2013* Speaker at NoSQL Now* Speaker at MongoDB SF2010* Speaker at MongoDB SV
Listed skills include Software Engineering, Software Development, Java, Python, and 41 others.
Current workplace
Robert Stewart's current company
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13 roles
Robert Stewart work experience
A career timeline built from the work history available for this profile.
Technical Advisor
Current
Mar 2022 - Present
Cto & Chief Architect
* Define and drive the apree health technical roadmap* Work closely with Solution, Product and Clinical teams on product definition* Lead apree's efforts to leverage generative AI to reduce administrative burden for our providers and improve the patient experience* Manage a team of senior architects and data scientists* Participate frequently in sales.
Aug 2022 - Apr 2024
Cto And Chief Architect
* Define and drive the Castlight technical roadmap* Work closely with Product and Clinical teams on product definition* Manage a team of senior architects and data scientists* Participate frequently in sales presentations to health plans and large employers* Interim CISO from May 2020 to November 2020* Organize and lead the monthly Engineering All Hands*.
Mar 2017 - Aug 2022
Vp, Engineering And Chief Architect
Led the Engineering teams that built Castlight Action, the first healthcare personalization engine to use claims, demographic data, surveys, application activity data, and more to identify and predict medical conditions for individuals and then deliver timely, meaningful, personalized recommendations. I was also the overall architect of this product. At.
Jan 2016 - Mar 2017
Chief Architect
Responsible for overall scalability, performance, security, and reliability of the Castlight Health navigation platform. Helped develop Java services for search, pricing, and provider directory data. Did all development and configuration work to migrate the serving of geospatially-indexed pricing data to a highly scalable MongoDB-based architecture that.
May 2011 - Jan 2016
Technical Advisor
Advisor to the Computable Labs CTO. The company was later renamed to Kindred.
Oct 2017 - Dec 2021
Lead Architect
Designed and developed hosted speech applications for medium to large clients. Managed the infrastructure development team. DBA for 25 MySQL instances in 9 data centers.
Jun 2004 - May 2011
Chief Architect
Software architect for next generation IVR products, workflow tools, and application design tools. Managed a highly distributed Solutions Engineering team.
Aug 2000 - May 2004
Consulting Member Of Technical Staff, Chief Architect
Led the design, development, and evangelization of CRM Central, a distributed platform for managing multi-channel inbound contact centers. CRM Central was the core product leading to the acquisition of Mosaix by Lucent. Also, served as the Department Head for a 60-person R&D group that included development, documentation, and QA. Co-author on a patent for.
Jul 1999 - Aug 2000
Executive Director, Software Engineering
Managed a 50-person R&D group that included development, documentation, and QA. Reported to the CEO.
Jan 1996 - Jul 1999
Engineering Manager, Senior Software Engineer
Viewstar
Managed the client software development team for the ViewStar workflow system. Helped design and develop the API and libraries for building client applications and custom workflow tasks.
Sep 1993 - Jan 1996
Research Scientist Associate
Designed and developed user interfaces and image processing software for sonars for submarines.Performed data analysis and modeling of the scattering of sound in ocean sediments. Published an article in the Journal of the Acoustical Society of America and spoke at the annual conference.
Jun 1988 - May 1993
2 education records
Robert Stewart education
B. A., Physics, Philosophy
Rice University
Electrical Engineering And Computer Science
The University Of Texas At Austin
FAQ
Frequently asked questions about Robert Stewart
Quick answers generated from the profile data available on this page.
What company does Robert Stewart work for?
Robert Stewart works for Arbital Health.
What is Robert Stewart's role at Arbital Health?
Robert Stewart is listed as CTO at Arbital Health at Arbital Health.
What is Robert Stewart's email address?
AeroLeads has found 1 work email signal at @castlighthealth.com for Robert Stewart at Arbital Health.
What is Robert Stewart's phone number?
AeroLeads has found 7 phone signal(s) with area code 202, 415, 510 for Robert Stewart at Arbital Health.
Where is Robert Stewart based?
Robert Stewart is based in Oakland, California, United States while working with Arbital Health.
What companies has Robert Stewart worked for?
Robert Stewart has worked for Arbital Health, Keen Insurance Services, Apree Health, Castlight Health, and Kindred.
How can I contact Robert Stewart?
You can use AeroLeads to view verified contact signals for Robert Stewart at Arbital Health, including work email, phone, and LinkedIn data when available.
What schools did Robert Stewart attend?
Robert Stewart holds B. A., Physics, Philosophy from Rice University.
What skills is Robert Stewart known for?
Robert Stewart is listed with skills including Software Engineering, Software Development, Java, Python, Scalability, Mysql, Saas, and Integration.
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