Justin Wood
Senior Team Lead at DraftKings Inc.
Oshawa, Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolJustin Wood is a senior engineering leader with 14 years of experience building and scaling event-driven systems, currently serving as Senior Team Lead at DraftKings after recent staff and principal roles. He specializes in Elixir, Erlang, and Postgres performance optimization, and has repeatedly led migrations from request-based monoliths to event architectures using Kafka, SNS, and SQS. Justin pairs hands-on backend and DevOps work—contributions to projects like the Elixir MongoDB driver and the Nix-based devenv tool demonstrate his attention to database stability, secure connections, and reproducible developer environments. He’s known for cutting build and feedback times (reducing compile from 5+ minutes to under one) and for instituting contract testing and async test strategies to improve reliability. A practical mentor and recruiter, he builds training programs and developer abstractions that scale teams as well as systems. Based in Oshawa, Canada, he blends deep technical craft with a clear track record of operational improvements that quietly accelerate delivery.
14 years of coding experience
13 years of employment as a software developer
Diploma Web Development, Diploma Web Development at Durham College
English
Stackoverflow
9,971reputation
622kreached
300answers
15questions
elixir
top-1%
ruby
top-5%
phoenix-framework
top-1%
Github Skills (40)
integrate10
erlang10
nix10
cassandra10
elixir10
connect10
connections10
databases10
ide10
integrations10
connection-manager10
mongodb-database10
emacs-lisp10
driver10
connection-pool10
Programming languages (17)
Github contributions (5)
elixir-mongo/mongodb
Aug 2016 - Apr 2020
MongoDB driver for Elixir
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 99 commits, 99 PRs in 3 years 9 months
Contributions summary:Justin primarily focused on improving the Elixir MongoDB driver. Their contributions involved updating dependencies, such as `db_connection`, and ensuring SSL compatibility for secure connections. They also addressed critical issues related to connection management, including flushing the buffer and setting the active state properly, as well as fixing ets lookups for the connection pool. These changes enhance the driver's stability, security, and overall functionality.
mongodb-driverdriverelixirmongodb
elixir-mongo/mongodb_ecto
Aug 2016 - Mar 2018
MongoDB adapter for Ecto
Role in this project:Back-end Developer
Back-end DeveloperContributions:53 commits, 19 PRs, 33 pushes in 1 year 7 months
Contributions summary:Justin primarily focused on adapting the Ecto library to work with MongoDB. They implemented loaders and dumpers for various data types like time, date, and datetime, enabling data type conversions between Elixir and MongoDB. They also addressed several bugs in the integration, including fixes for regular expression queries, and the update/delete operations. Furthermore, they updated dependencies and refactored code related to query normalization.
mongoose-pluginelixiradaptermongodbecto
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