Rendering About Experience Notes
RYAN KOSAI
Software Development & Digital Design
Rendering & 3D Printing
About
Engineer and startup founder. Previously led engineering teams at ExtraHop Networks and Marchex, and was the CTO at Athleon.com, a venture backed startup. Currently building new companies at Pioneer Square Labs.
Selected Experience
CTO
Pioneer Square Labs
Pioneer Square Labs is a startup studio that tests and validates startup ideas, then funds and hires a founding team around the most promising concepts. Our backers include 13 of the world's top venture firms and over 50 angels from the Pacific Northwest, Silicon Valley, and around the country.

We're looking for people interested in being co-founders and lead engineers for our companies. It's a great opportunity to build a startup, without the risk that comes with starting from scratch.

Principal Engineer, Team Lead
ExtraHop Networks
Principal engineer and UI team lead, responsible for building the ExtraHop product UI. Worked closely with the CEO and business stakeholders to develop requirements and define the strategic direction of the product.

Led an eight-dev team, driving the technical vision, architecture, and implementation of a web-based dashboard analytics platform. Wrote several major product features, including the data analytics engine and real-time metric search. Python, JavaScript, Angular, PostgreSQL.

Senior Engineer, Team Lead
Marchex
Senior engineer and team lead, responsible for building and testing Marchex's core VoIP platform. Led a team of five engineers (dev+qa) to sunset and replace several legacy services, driving the technical vision, and coordinating feature development, testing, and the migration of customers to the new system.

I was personally responsible for writing the company's next-gen SIP router, and contributed to its Asterisk-based call handling platform. Perl, Oracle, Redis.

Co-founder and CTO
Athleon
Raised $650K in seed-stage venture financing, then recruited and led a team of four engineers to build a product serving over 150,000 coaches and athletes. Acquired by UK-based Sports Development Network (2012).
Notes & Lists
Favorite Books
George W. Bush read 95 books a year while he was President, according to Karl Rove.
1
Seeing Like a State (James C. Scott)
2
Roman Lives (Plutarch)
3
The Illuminatus! Trilogy (Robert Shea)
4
Barbarians at the Gate (Bryan Burrough)
5
On China (Henry Kissinger)
Operas
"Never look at the trombones, you'll only encourage them." (Richard Strauss)
1
The Tales of Hoffmann (Offenbach)
2
The Marriage of Figaro (Mozart)
3
La Cenerentola (Rossini)
Short Stories
"I didn't have time to write a short letter, so I wrote a long one instead." (Mark Twain)
1
Leninigen vs. the Ants (Carl Stephenson)
2
The Crack Up (F. Scott Fitzgerald)
3
The Last Question (Isaac Asimov)