Engineer Project Manager

J C Lawrence

Phone: 408-***-****

Email: ****@*****.**

URL: http://kanga.nu/~claw/

J C Lawrence

a Builds cost-effective massively-scalable systems.

a Customer-oriented and results-driven with 10+ years of engineering leadership.

a Full system and product life-cycle experience for both Software Engineering and

Operations.

YouSendIt

Campbell, CA

Senior Staff Engineer, Storage ArchitectDec 2009Jan 2012

a Architected and implemented scaling from ~1.5 million transactions/day and 500TB of

storage to 25+ million transactions/day and 4PB of storage.

a Led the reduction of transaction error rate by 80% and site escalations from 3/week to

under 2/year.

a Architected & implemented standardized engineering deliverables, build environments,

build processes, product packaging, configuration management, and standardized deployment

methods, initially for the storage tier and ultimately for all server-side products.

a Built a strong relationship between Engineering and Operations at all levels.

a Assorted technical deliveries: 64bit port of the storage tier, specified & moved the

storage tier from DASD to a shared horizontally-scalable storage cluster model, re-

implemented the storage tier as light-weight WSGI web services instead of a costly custom

Apache module, multiple large customer saves for Sales and Customer Support, etc.

Skills used: Apache, Apache modules, API design, AWS/S3, build & release, C/C++,

concurrent programming, engineering lead, distributed systems, GPFS, incident response

protocols/teams, gevent/libevent, Luwak, master-less clusters, PDLC and engineering

process, product architect, Python, Riak, SaaS, scalability, schema-less/no-SQL databases,

storage systems & networks, technical leadership, web services, WSGI, virtualization and

VM-based clusters

PayPal

San Jose, CA

Lead Engineer, Manager, Product ArchitectJune 2005 - Nov 2008

a Acted as lead engineer and manager for the Developer Services team, responsible for the

PayPal web-services platform ($30B+/year), IPN (API callbacks) and Sandbox test systems.

a Re-implemented merchant APIs to use name-value pair POSTs instead of SOAP. Within 6

months two thirds of all new merchant integrations were using NVP.

a In parallel with the payment-method development teams, rewrote the web-services

platform for all payment and merchant APIs, moving it from a monolithic CGI-BIN/server

pair to a light-weight dispatcher model routing requests to business-logic servers with

good code & deployment isolation.

a Led the rollout of the new web-services tier with no unplanned downtime or lost

transaction volume.

a Moved the Sandbox from a 4-system cluster in San Jose to a 100-system cluster in

Denver.

a Acted as lead engineer and manager for the Merchant On-boarding team, responsible for

merchant-acquisition and merchant-configuration systems. Built and trained the QA team for

my group. With a local team and a team in India delivered over a dozen features including

rewriting the boarding flow with a 70% reduction in fall-off rate, hierarchal sub-account

management and channel boarding APIs.

a As Product Architect for the internal OTurboRollerO release-orchestration tool,

developed and got funded a full web-services/work-flow based replacement architecture with

a roadmap to get there from the current system.

a Part of the team that implemented STSI, a rescue re-architecture when internal or

external dependencies fail, including the siteOs Oracle database (which was near crashing

from load). I was responsible for parts of the payment methods and the daemon that

replayed transactions received during the outage.

a Recognized for exceptional ability to work through others and consistently moving the

company forward to both fix the problem and ensure it didnOt recur.

Skills used: Apache, product architect, business coordination, C/C++, distributed

systems, engineering lead, manager, offshore engineering coordination, security analysis,

technical leadership, web services, workflow automation

Pfizer Research & Development Groton, CT

Product Architect, June 2003May 2005 (contract)

a Wrote and executed massively parallel custom applications to analyze omics data

(proteinomics, genomics, etc).

a Using Open Source tools and components, designed and delivered an agent-based

distributed heterogeneous computational router/framework for non-programmer computational

statisticians to express common computational methods and non-statistician/non-programmer

research scientists to use work-flow tools to assemble & use those methods for their

research analysis.

a Collaborated on distributed computational statistics projects for Pfizer with research

groups at Yale and Seattle universities.

Skills used: academic partnerships, architect, ad-hoc heterogeneous clusters, distributed

computation, distributed systems, message busses, message passing networks, parallel

computation, performance analysis, Python, scientific computing, tuple spaces, web

services, workflow automation, virtualization, XML, Zope

Protego Networks Milpitas, CA

Systems Architect, August 2002February 2003

a Designed and implemented logic core of product (aggregation and near-realtime

distributed analysis of distributed network events, 20K events/second per node). Patents

granted.

Primary skills used: algorithm design, architect, C++, distributed systems, engineering

lead, high performance systems, Linux, micro-language design, parsers, scalability,

security analysis, SSL, XML

Sun/Cobalt Santa Clara, CA

Staff Engineer, April 2002July 2003 (contract)

a Implemented support for new Squid features and transferred maintenance to in-house

staff.

Skills used: C/C++, Linux. PHP

2Wire Milpitas, CA

Senior Staff Engineer, April 2001December 2001

a Reverse engineered and implemented proprietary VoIP protocols (Dialpad).

a Implemented POSIX thread support under pSOS

Skills used: C/C++, distributed systems, pSOS, SSL, VoIP, POSIX, reverse engineering,

security analysis

Maxtor, Network Services Advanced Technology Group San Jose, CA

R&D Team Lead, December 2000March 2001 (contract)

a Lead R&D team & researched and advised on future NAS and storage technology directions.

Skills used: algorithm design, architect, C/C++, engineering lead, performance analysis,

project management, Python, reverse engineering, technology evaluation

Nuron Santa Clara, CA

Senior Staff Engineer, August 2000November 2000 (contract)

a Assisted in design/development of a Linux-based FPGA-based memory-module device driver

aimed at

the SSL acceleration and image processing markets.

Skills used: apache module, architect, cryptography, C/C++, device drivers, Linux kernel,

performance analysis, Python, security analysis, SSL

Critical Path San Francisco, CA

Senior Staff Engineer, October 1999July 2000 (contract)

a New product development relating to MIME and Document Object Model (DOM) support for

Critical

Path's core webmail product.

Skills used: Apache, C/C++, Linux, Perl, Python, Solaris, SQL, XML

VA Research/VA Linux

Mountain View, CA

Senior Staff Engineer, Project Manager, February 1999October 1999

a

Project manager and coordinator for the Linux/IA64 project (porting Linux to

Itanium/IA64).

a Established seven-company consortium for that project (CERN, Cygnus, HP, IBM, Intel,

SGI, VA).

a Drove development efforts from two months behind schedule to over three months ahead of

schedule in

less than 6 months.

Skills used: C/C++, engineering lead, Linux, Linux kernel, project management, PHP,

Python, SQL

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