Ken Brownfield

Engineer at Stealth Co
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Contact Information
us****@****om
(386) 825-5501
Location
Novato, US

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Experience

    • Engineer
      • Aug 2023 - Present
    • Italy
    • Book and Periodical Publishing
    • 1 - 100 Employee
    • Director, Engineering
      • Jan 2022 - Aug 2023

      Directing Density's software infrastructure; building the ideal data and analysis platform to minimize the footprint and maximize the human experience of our workplaces. Understanding how people use traditional or hybrid workplaces is key to reducing economic and environmental footprint, but more importantly, it's crucial to making the work experience the best *human* experience that it can be. Density's hardware + software approach allows a deep level of integration that… Show more Directing Density's software infrastructure; building the ideal data and analysis platform to minimize the footprint and maximize the human experience of our workplaces. Understanding how people use traditional or hybrid workplaces is key to reducing economic and environmental footprint, but more importantly, it's crucial to making the work experience the best *human* experience that it can be. Density's hardware + software approach allows a deep level of integration that increases operational efficiency and maximizes the value of workplace insights. Density brings together the ideal combination of intent and reality: knowing how a space is intended to be used is far more valuable if you also know how a space was actually used. - Our hardware sensors are anonymous at the source—no cameras, ever. - Density provides cutting edge 3D scans of your entire workplaces for superior visualization and installation efficiency. - Insights that are actually actionable—know exactly what your employees want, and provide it efficiently. “It’s not always plants.”

    • Principal Engineer
      • Jun 2021 - Aug 2023

      Nashi is now Density Workplace.

    • United States
    • IT Services and IT Consulting
    • Founding Engineer
      • Mar 2020 - Jun 2021

      Tired of staying at work late on those clunky Excel/Sheets/Vizio/Drawings to manage where your company's teams work, only to have it become obsolete in days? Wish your company's employees could be involved without dozens of requests funnelling through a single person (you?) Embrace the power of hybrid work. Nashi makes it simple to reserve desks and schedule in-office visits, without compromising employee safety. Tired of staying at work late on those clunky Excel/Sheets/Vizio/Drawings to manage where your company's teams work, only to have it become obsolete in days? Wish your company's employees could be involved without dozens of requests funnelling through a single person (you?) Embrace the power of hybrid work. Nashi makes it simple to reserve desks and schedule in-office visits, without compromising employee safety.

    • Uzbekistan
    • Information Services
    • 1 - 100 Employee
    • Staff Software Engineer
      • Oct 2018 - Feb 2020

      I co-designed the data framework and flows behind a new physical security model, incorporating primary sources of truth from across a new layer of core services. I worked with the product and engineering leads of several teams to evolve the architecture as a unified group. I built the foundational Go/gRPC service for entity grouping that enables the newly designed security and permissions model. I designed and built the Go/gRPC service that powers a newly designed RBAC Permissions model,… Show more I co-designed the data framework and flows behind a new physical security model, incorporating primary sources of truth from across a new layer of core services. I worked with the product and engineering leads of several teams to evolve the architecture as a unified group. I built the foundational Go/gRPC service for entity grouping that enables the newly designed security and permissions model. I designed and built the Go/gRPC service that powers a newly designed RBAC Permissions model, as well as a name-spacing and a controllable & extensible ABAC model within the RBAC structure. I was the strategic and technical lead for a Permissions team which implemented these latter features. The team also designed and built a source of truth Go/gRPC service for physical credentials, which powered the new physical security model. The group also maintains the company's core existing permissions and physical security software systems, critical for daily operation of WeWork locations globally. From an Engineering perspective, I helped drive overall technical and strategic direction of physical security at WeWork. Reported to VP/E of Core Platform Engineering. Primary infrastructure utilized included Kubernetes, CircleCI (CI/CD), Docker, Quay/Artifactory, Go, gRPC, MySQL, Redis, Ruby/Rails/PG. Show less I co-designed the data framework and flows behind a new physical security model, incorporating primary sources of truth from across a new layer of core services. I worked with the product and engineering leads of several teams to evolve the architecture as a unified group. I built the foundational Go/gRPC service for entity grouping that enables the newly designed security and permissions model. I designed and built the Go/gRPC service that powers a newly designed RBAC Permissions model,… Show more I co-designed the data framework and flows behind a new physical security model, incorporating primary sources of truth from across a new layer of core services. I worked with the product and engineering leads of several teams to evolve the architecture as a unified group. I built the foundational Go/gRPC service for entity grouping that enables the newly designed security and permissions model. I designed and built the Go/gRPC service that powers a newly designed RBAC Permissions model, as well as a name-spacing and a controllable & extensible ABAC model within the RBAC structure. I was the strategic and technical lead for a Permissions team which implemented these latter features. The team also designed and built a source of truth Go/gRPC service for physical credentials, which powered the new physical security model. The group also maintains the company's core existing permissions and physical security software systems, critical for daily operation of WeWork locations globally. From an Engineering perspective, I helped drive overall technical and strategic direction of physical security at WeWork. Reported to VP/E of Core Platform Engineering. Primary infrastructure utilized included Kubernetes, CircleCI (CI/CD), Docker, Quay/Artifactory, Go, gRPC, MySQL, Redis, Ruby/Rails/PG. Show less

    • United States
    • Technology, Information and Internet
    • 1 - 100 Employee
    • Co-founder
      • Sep 2014 - Oct 2018

      I co-founded Asymmetrica Labs with Chris Nicholas to improve human comprehension. I implemented the cloud-based technology to build complex reading models from large datasets and deliver reading improvements in real time over the web. Technologies included AWS (EB, DynamoDB, ElastiCache, S3, Route 53), Python, C, JS, WSGI/Flask, Redis, proprietary image processing, and patented approaches to human language processing. Asymmetrica provides unobtrusive, large-scale reading… Show more I co-founded Asymmetrica Labs with Chris Nicholas to improve human comprehension. I implemented the cloud-based technology to build complex reading models from large datasets and deliver reading improvements in real time over the web. Technologies included AWS (EB, DynamoDB, ElastiCache, S3, Route 53), Python, C, JS, WSGI/Flask, Redis, proprietary image processing, and patented approaches to human language processing. Asymmetrica provides unobtrusive, large-scale reading improvement for web and print media. Asym's formatting introduces visual cues into the text which improve the reading experience. Readers are able to read faster, understand more, and better remember your message with Asym. Our technology provides over 10% improvements to a wide variety of business metrics—including top-line revenue, ad click-through rates, and engagement—all from a 5-minute install. Asymmetrica is creating $40B of value in eCommerce alone. Asym increases publishing engagement & monetization, click-through & conversion rates on text and image ads, and direct sales revenue. Show less I co-founded Asymmetrica Labs with Chris Nicholas to improve human comprehension. I implemented the cloud-based technology to build complex reading models from large datasets and deliver reading improvements in real time over the web. Technologies included AWS (EB, DynamoDB, ElastiCache, S3, Route 53), Python, C, JS, WSGI/Flask, Redis, proprietary image processing, and patented approaches to human language processing. Asymmetrica provides unobtrusive, large-scale reading… Show more I co-founded Asymmetrica Labs with Chris Nicholas to improve human comprehension. I implemented the cloud-based technology to build complex reading models from large datasets and deliver reading improvements in real time over the web. Technologies included AWS (EB, DynamoDB, ElastiCache, S3, Route 53), Python, C, JS, WSGI/Flask, Redis, proprietary image processing, and patented approaches to human language processing. Asymmetrica provides unobtrusive, large-scale reading improvement for web and print media. Asym's formatting introduces visual cues into the text which improve the reading experience. Readers are able to read faster, understand more, and better remember your message with Asym. Our technology provides over 10% improvements to a wide variety of business metrics—including top-line revenue, ad click-through rates, and engagement—all from a 5-minute install. Asymmetrica is creating $40B of value in eCommerce alone. Asym increases publishing engagement & monetization, click-through & conversion rates on text and image ads, and direct sales revenue. Show less

    • United States
    • Software Development
    • 700 & Above Employee
    • Senior SRE Manager (YouTube)
      • Aug 2011 - Sep 2014

      Created a dedicated team to manage YouTube's non-video production infrastructure, including capacity planning and architectural iteration. Tuning processes, standards, and team interactions. Managed SRE, DBA, SA, and hwops teams.

    • Production Operations Manager (Slide)
      • Aug 2010 - Aug 2012

      Continued VP, Operations role for the Slide team within Google.

    • United States
    • Technology, Information and Internet
    • Director, Operations
      • Aug 2005 - Aug 2010

      Built, developed, and expanded a diverse Operations team for a fast-growing, constantly evolving social media and virtual economy startup. Tech: Python, coro (greenthreads), MySQL, Linux Slide was acquired by Google on August 6th, 2010. Built, developed, and expanded a diverse Operations team for a fast-growing, constantly evolving social media and virtual economy startup. Tech: Python, coro (greenthreads), MySQL, Linux Slide was acquired by Google on August 6th, 2010.

    • Operations Manager
      • Aug 2004 - Aug 2005

      Operations (systems/network/security/facilities) and production infrastructure for an incubator of several nascent startups, including Slide and Yelp! Operations (systems/network/security/facilities) and production infrastructure for an incubator of several nascent startups, including Slide and Yelp!

    • United States
    • Technology, Information and Internet
    • 700 & Above Employee
    • Infrastructure Architect
      • Jun 2003 - Jul 2004

      I was the systems architect for PayPal, and a member of an eBay team reviewing eBay and PayPal site product features to properly scale initial production deployments. Also worked with capacity planning to keep hardware deployment ahead of growth curves. I was the systems architect for PayPal, and a member of an eBay team reviewing eBay and PayPal site product features to properly scale initial production deployments. Also worked with capacity planning to keep hardware deployment ahead of growth curves.

    • United States
    • Software Development
    • 700 & Above Employee
    • Manager, Systems Integration
      • Dec 1999 - Jun 2003

      Scaled a small Solaris-based OLTP production systems environment (solo for the first 1-2 years) onto infrastructure across multiple datacenters, including host-based security, systems and some network and security architecture, monitoring, capacity planning, and disaster recovery. Migrated from Solaris to Linux for non-database systems to save significant cost and increase performance. Deployed Rackable Systems, Sun, Oracle, EMC, F5 BigIP, some Cisco PIX/IOS, Veritas (VxFS, VCS). Tech:… Show more Scaled a small Solaris-based OLTP production systems environment (solo for the first 1-2 years) onto infrastructure across multiple datacenters, including host-based security, systems and some network and security architecture, monitoring, capacity planning, and disaster recovery. Migrated from Solaris to Linux for non-database systems to save significant cost and increase performance. Deployed Rackable Systems, Sun, Oracle, EMC, F5 BigIP, some Cisco PIX/IOS, Veritas (VxFS, VCS). Tech: C++, Linux, large-scale Sun & Oracle, Python Built a solid Systems team to maintain quality and scalability as PayPal became larger and more complex. PayPal made a successful IPO on February 15th, 2002 and was acquired by eBay on October 3rd, 2002. Show less Scaled a small Solaris-based OLTP production systems environment (solo for the first 1-2 years) onto infrastructure across multiple datacenters, including host-based security, systems and some network and security architecture, monitoring, capacity planning, and disaster recovery. Migrated from Solaris to Linux for non-database systems to save significant cost and increase performance. Deployed Rackable Systems, Sun, Oracle, EMC, F5 BigIP, some Cisco PIX/IOS, Veritas (VxFS, VCS). Tech:… Show more Scaled a small Solaris-based OLTP production systems environment (solo for the first 1-2 years) onto infrastructure across multiple datacenters, including host-based security, systems and some network and security architecture, monitoring, capacity planning, and disaster recovery. Migrated from Solaris to Linux for non-database systems to save significant cost and increase performance. Deployed Rackable Systems, Sun, Oracle, EMC, F5 BigIP, some Cisco PIX/IOS, Veritas (VxFS, VCS). Tech: C++, Linux, large-scale Sun & Oracle, Python Built a solid Systems team to maintain quality and scalability as PayPal became larger and more complex. PayPal made a successful IPO on February 15th, 2002 and was acquired by eBay on October 3rd, 2002. Show less

    • Computer Hardware
    • Systems Administrator
      • Jan 1998 - Dec 1999

      Managed a diverse environment dominated by Linux and Solaris systems. As the primary security contact, I upgraded older Proteon firewall/router with Linux-based firewalls and Solaris-based application firewalls. Supported foreign and domestic corporate and production infrastructure. Later focus on projects for Office of the President (Stephen Wolfram). Managed a diverse environment dominated by Linux and Solaris systems. As the primary security contact, I upgraded older Proteon firewall/router with Linux-based firewalls and Solaris-based application firewalls. Supported foreign and domestic corporate and production infrastructure. Later focus on projects for Office of the President (Stephen Wolfram).

    • Product Manager
      • Jan 1995 - Dec 1997

      I was the Product Manager for KAI's optimizing frontends for Silicon Graphics, Inc. (SGI) FORTRAN compilers distributed on IRIX 5.x/6.x platforms. Determined feature plans for fixed release schedules, maintained communication between SGI & KAI development and management teams, tracked the status and schedules of features and bug fixes. Built, tested, and shipped product.

    • Systems Administrator
      • Oct 1993 - Dec 1997

      Managed a network of every Unix, OpenVMS, and desktop OS that existed at the time, including teraflops prototypes. Revamped old 10Base2/10Base5 network to 100Base-T switched; Internet setup (UUCP replacement) and firewalling (FWTK FTW); built public HTTP/FTP sites; constructed a web commerce site; re-architected backup systems. Initiated strong security measures in an academia-derived environment.

    • Product Support Specialist
      • Feb 1994 - Jan 1995

      Maintained and expanded a performance and correctness testing suite for KAI compiler and source-based optimizer products. Designed a testing system to track improvements and regressions in all KAI products on a daily basis.

    • United States
    • Pharmaceutical Manufacturing
    • 1 - 100 Employee
    • Programmer, Consultant
      • 1993 - 1997

      Developed software, GUIs, and database management software based on FoxPro; Linux administration. Developed software, GUIs, and database management software based on FoxPro; Linux administration.

    • Programmer, Technical Writer
      • May 1992 - Jul 1993

      Worked on the GRASS programmer's manual, and managed related FTP sites, mailing lists, and Unix systems. Worked on the GRASS programmer's manual, and managed related FTP sites, mailing lists, and Unix systems.

    • Technical Coordinator
      • Apr 1990 - Dec 1991

      Desktop admin; consultant for UIUC faculty and staff; NeXT root access. Desktop admin; consultant for UIUC faculty and staff; NeXT root access.

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