JVM: Java, Scala, Guava, Guice, Dagger, SpringBoot, Lucene, GWT & Kotlin;

Unix: Python, Go, C, Perl, Bash & Zsh;

C#: ASP.Net;

Data: Spark, Airflow, MySQL, BigQuery, Hive, Presto, Megastore, Beam/Cloud Dataflow;

Web: NodeJS, Vue.js, HTML, CSS & JavaScript;

AWS: ALB, ASG, EBS, EC2, EFS, EKS, EMR, Lambda, RDS, CloudTrail, CloudWatch, CloudFormation, S3 …;

Agile & TDD

Worcester Polytechnic Institute;

Worcester, MA

– BS Computer Science

Sep 1995–May 1999

Columbia University;

New York, NY

– Non-Degree Semester

Sep 2007–Dec 2007

Introduction to Machine Learning, Video Game Design and Technology

Andrew Ng's Stanford ML-Class.org;

Online

– Became Coursera

Oct 2011–Dec 2011

Review Questions: 76 out of a maximum of 80 Programming Exercises: 800 out of a maximum of 800

Etsy Senior Software Engineer Experimentation Platform

Brooklyn

Jul 2022–PresentJan 2024

• Extended self-service no-code custom experiment metrics for teams to track funnel metrics in experiment variants
• Added some api endpoints in php to support custom metrics and events management from commandline and python notebooks
• Consolidated jobs with similar sources to get 45% run time improvements & increased argument granularity to allow back-fills without customizing jobs
• Added data quality validations to new and old experimentation pipeline tables with Great Expectations
• Developed Self-repair pipeline steps for event mis-namings & extend monitoring with on-call rotations

Coupang Senior Backend Software Engineer Clickstream Web Logging

Seattle

Nov 2020–Apr 2022

• Developed and delivered Customer Experience Analytics Platform tool for self-service funnel, journey and trend analysis of web log data using Vue.js 2, Spark, and Scala
• Mentored intern project to port and extend UI on Vue.js 3 & hired them
• Assisted Retail Delivery team's mission-critical multi-AZ expansion projects

Coupang Senior Data Engineer Data Platform Tools and Infra

Seattle

Jul 2019–Nov 2020

• Migrated ~4000 Airflow ETL jobs from Airflow 1.8 to 1.10+, with custom tooling
• Optimized teams' resource usage of EMR and Spark jobs
• Split and upgraded Airflow into deployments by priority

Coupang Big Data Engineer Big Data Platform

Seoul

Aug 2017–Jul 2019

• Onboard teams onto Airflow & and maintained EMR clusters for their jobs
• Developed Data Platform Portal tool with Cluster management and data discovery features
• Scale out Airflow to ~6000 dags with multiple deployments
• On call rotation for Airflow, Presto, Hive, Hue, Zeppelin, Spark, HDFS, Zookeeper etc.

Coupang Data Engineer Data Platform

Seattle

Jul 2016–Aug 2017

• Migrated on-prem Netezza and HDFS Hive to EMR Hive on S3
• Update ETL into Airflow from Oozie and Talend
• Monitored data readiness with on-call rotations

Insight Data Science Data Engineering Fellow

New York City

Sep 2015–Jan 2016

• Realtime and batch processing on NYC MTA's GTFS stream with Kafka, Spark, HDFS, HBase, S3
• Generated user data in large scale for testing aim of notifying users of train delays
• Cluster on AWS EC2; project information and presentation at dlamblin.github.io/mta-delay-monitoring

Paragon Cloud Security Software Engineer

New York City

Mar 2015–Aug 2015

• Paragon was interested in cloud storage of security video and we got over 100 cameras storing footage on Azure.
• The Axis Camera's had embedded linux and a cross-compilation chain for edge video processing apps which we attempted to add scene/object recognition to.

Spectre App Founding Software Engineer

New York City

Nov 2014–Mar 2015

• Rapid prototype a photo-journalism sourcing app for location specific calls for photos with photographer licensing & attribution

Google Software Engineer

New York City

Jul 2010–Nov 2014

• Ported legacy Studio product, a rich advertisement authoring and QA web-app, to Google’s Web Toolkit front-end with a stubby rpc backend and megastore datastore
• Developed a dashboard to track component usage data of ads by comparing html5 vs. flash authoring, common formats, layouts, and generated impressions. Utilized cross-team apis and internal versions of GFS, Cloud Dataflow and Drill
• Implemented critical preview features for monitoring ad unit interactions and compliance
• Migrated user records and assets to support new multi-account users and unified asset library view
• Reduced reprocessing and conserved storage of assets by fingerprinting uploads, both on individual files and within archives

Sigato Group Software Engineer

Remote

Aug 2009–Jan 2010

• Engineered provider search functionality for New West Health with R-tree based search, maps, and directions, as a module for Drupal using PHP, MySQL, and Perl
• Integrated single sign-on to converge features from New West Health and partners

Travelocity Senior Web Application Developer

New York City

Jul 2006–Jan 2009

• Established features for IgoUgo.com using the ASP.NET 2.0 framework, C#, PrototypeJS
• Introduced a Lucene based index of content to offload db search as a wsdl service in Java and Spring with auto-completed suggestions for key geo-entities
• Boosted traffic ten fold through optimization of page structure, URLs and image file names

Hairzone Inc Head Web Developer

Moonachie

Oct 2004–Jul 2006

• Built and supported the multiple websites of four company brands with ASP

Richmond Research Inc Programmer

New York City

Feb 2003–Oct 2004

• Automated reporting and developed web products using Perl, PHP, Visual Basic and ActionScript for clients including Wall Street Journal and Priceline

Mile NY Website Programmer

Fort Lee

Oct 2002–Sep 2003

• Established MileNY's e-commerce site for using Perl, CGIs, and MySQL database

EMC Corp Associate Software Engineer

Milford, MA

Jun 2000–Oct 2001

• Extended EMC Data Manager Volume & Tape Library Manager's media duplication processes targeting Petabyte capable systems like Sony PetaSite with multiple robots and drives
• Improved and maintained EDM as a multi-process C based system with Sun RPC, threading, and IPC signals & pipes; Resolved deadlock by refactoring mutex hierarchy