LinkedInBrian Guan

Brian Guan

On sabbatical from high-tech, slacking...

Palo Alto, California
  1. Home
  1. LinkedIn,
  3. InQuira
  1. Imperial College London
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Dad 宅男

– Present

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San Francisco senior web application architect, connoisseur in open source Java technologies and experienced in agile methodologies, player-coach / hands-on technical manager.

Specialties:Software architecture, consumer web apps, Java, relational databases, open source tools/libraries, object oriented analysis/design, internationalization, project management, software development effort estimation.


Dad 宅男

– Present (2 years 6 months)

Random things I didn't get to do much before, and taking way too many courses on MOOCs:

1. Intro to AI by Sebastian Thrun and Peter Norvig, completed, pre Udacity
2. Machine Learning by Andrew Ng on Coursera, completed
3. AI for Robotics by Sebastian Thrun on Udacity, completed
4. How to Build a Start-Up by Steve Blank on Udacity, partial completion
5. Intro to Theoretical Computer Science by Sebastian Wernicke on Udacity, completed
6. Algorithms by Michael Littman on Udacity, completed
7. Functional Programming Principles in Scala by Martin Odesky on Coursera, completed
8. Global History since 1760 by Philip Zelikow on Coursera, completed
9. Intro to Digital Sound Design by Steve Everett on Coursera, completed
10. ADHD Through the Lifespan by Anthony Rostain on Coursera, completed
11. Jazz Improvisation by Gary Burton on Coursera, completed
12. HTML5 Game Development by Colt McAnlis and Sean Bennett on Udacity, completed
13. Interactive 3D Graphics by Eric Hanes on Udacity, on-going
14. Intro to Psychology by Susan Snycerski, Greg Feist and Lauren Castellano on Udacity, on-going
15. Justice by Michael Sandel on edX, on-going
16. Duolingo Spanish, on-going

... enrolled in a dozen more waiting for the courses to start ...

Someone should give me another degree already :-)

Also worked on web animated comics for my boys, taught ukulele at my son's school fund-raiser, play in a mom and pop band in Palo Alto School of Rock, practice Taichi, tried Crossfit, enrolled in a gym, working on my 99 years old dad's biography with my niece...

Principal Software Engineer

(2 years 4 months)

... still devising hack schemes to make lots of $$$ with Java, Groovy and cunning at Team Money!

Note 9/25/2013: For those who come to view my profile regarding the alleged "hacking" story, here's my response

Engineering Manager, Corporate Solution

(1 year 7 months)

It was an exhilarating ride as the engineering manager for this nascent but wildly successful product area at Linkedin. However, family life must take precedence so I scaled back to individual contributor role.

Principal Software Engineer

(1 year 8 months)

Tech lead on the Revenue Team in charge of Subscriptions, Jobs/Applications, Customer Service, and Corporate Solutions.

* Led team and actively participated in development - questions/answers review queue, customer support administration, reusable job posting credits, automated account closure, automated subscription level change, internationalization, automated group management, corporate solutions portal...

* Participated on open source projects such as Groovy on Grails and AppFuse evaluated/used on projects

* Interviewed, recruited and helped build Revenue engineering team

Chief Architect
(2 years 1 month)

Job board with both public and members-only sections, specializing in Bay Area startup positions. Reviewed favorably by FastCompany and TechCrunch. My responsibilities:

* Management

Interviewed, recruited and manage engineering team. Participate in critical business decisions.

* Planning & Process

Estimated effort to manage scope and timeline. Established process based on agile methodologies.

* Architecture, Design & Development

Driven by requirements, budget and team skill-set, conducted technology evaluation, prototype and selected Spring, JSP+JSTL, Hibernate and Postgres as architecture foundation.

Led team to deliver robust, highly scalable and feature-rich product in less than 4 calendar months. Continuing to innovate and rapidly deliver new functionality.

* Operations

Hosting provider evaluation and selection. Ongoing release planning and execution, capacity planning and production support.

Engineering Architect

(1 year 6 months)

Natural language search engine start-up using semantic indexing and rules to divine user intent . Clients included Yahoo, Paypal, Bank of America, Honda, and BEA. Contributions included:

* Internationalization

Designed and led effort to develop support for major European and East Asian languages, which helped to win key customers such as PayPal.

* Profiling and Optimization

Led effort to address performance and resource issues for large content volume bounded by memory limitation. Using and extending open source profiling tools, refactored key modules to enhance performance by 20% and significantly reduced memory usage.

* Distributed Processing

Designed and implemented clustering that improved scalability, performance, and overall robustness. Evaluated and contributed to various open source JMS projects.

* Professional Service and QA Support

Supported professional service and QA engineers with challenging customer environments e.g. app server integration

Application Architect

(4 months)

E-business system integrator spun off from Ernst and Young. Hired as architect responsible for driving Weblogic's platform adoption in the company. Direct report to CTO.

Technical Architect

Roundarch, Inc., Chicago, USA
(less than a year)

Evaluated partners Weblogic and Documentum's product suite and technologies.

Technical Architect

Openbee Technology Consulting
(6 months)

Independent consulting practice.

System Architect/Director

Scient Corp
(2 years 2 months)

As system architect for the e-business system integrator, I lead teams from project conception to launch, overseeing all technical areas including product/service evaluation and vendor selection, infrastructure design and build-out, application design and development. Conduct formal estimation used for project planning, plan and execute system testing including fail-over and stress-testing.

Engagements include, UBS, Hewitt Associate, etc.

Technical Architect/Director

Cambridge Technology Partners
(5 years 4 months)

As technical architect for one of the pioneers of N-tier client/server architecture and JAD/RAD, I lead and guide projects from prototype to production, and mentor techical staff members.

Engagements include: Charles Schwab, Ryder, Pacific Gas and Electric, Hewlett Packard, etc.

Senior Software Engineer

Hewlett Packard
(2 years 2 months)

I have worked on manufacturing automation systems and pioneered the use of unix and relational database in HP singapore. I have also worked in the R&D lab on internationalization of HP windows printer drivers for the Asian market.

Contract Developer

(9 months)

As a contract developer on Microsoft Redmond campus, I have designed and developed MS Schedule+ version 1.0 for Macintosh, one of the early workgroup network calendaring products - the forefather of Outlook Calendar!

Volunteer Experience & Causes

Opportunities Brian is looking for:

  • Skills-based volunteering (pro bono consulting)

Causes Brian cares about:

  • Children
  • Education
  • Science and Technology

Organizations Brian supports:


Machine Learning(Link)

– Present


Stories of Two Boys and A Dog(Link)

Me, Myself and I
November 2012

Comic book series to help my boys learn Chinese

"永裕兴隆" Biography of My Father, the Centenarian Guan Miang-Leng(Link)

Me Myself and I
October 2013

"Guan Joo Heng Long" - life story of my father, the centenarian Mr Guan Bian-Leng, patriarch of the Guan family in Malaysia and Singapore. His life story reflects the last 100 years of turbulent world history, and chronicles the struggle of one family to survive and prosper under trying times.



  1. Chinese


  • Groovy
  • Java
  • Spring
  • Grails
  • Tai Chi
  • Guitar
  • Ukulele
  • Architecture
  • Relational Databases
  • OOAD
  • Hibernate
  • J2EE
  • Web Applications
  • Technical Leadership
  • Start-ups
  • Java Enterprise Edition
  • Distributed Systems
  • Software Development
  • Comics
  • Ant
  • Agile Methodologies
  • Eclipse
  • JMS
  • Integration
  • REST
  • Open Source
  • Weblogic
  • Scala
  • See 13+  See less


Imperial College London

Bachelor, Computer Science

Computer Science

Activities and Societies: Captain of Karate Team 1989-1990




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