Damian Janowski
Software Engineer at Community Phone
Buenos Aires, Autonomous City of Buenos Aires, Argentina
Summary
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RockstarDamian Janowski is a seasoned software engineer with 18 years of experience building backend-first systems and leading engineering teams across startups and scale-ups. Based in Buenos Aires, he has moved from hands-on roles to director-level product engineering, co-founding a startup and consulting for MercadoLibre on large-scale architecture and developer practices. He brings deep expertise in Redis and Ruby ecosystems—evidenced by contributions to redis-rb, redis.io, and object-hash mapping libraries—and practical experience improving testing, background jobs, and observability in production MERN apps. Damian combines full-stack fluency with a focus on robust data handling and developer ergonomics, having shipped improvements to browser-testing tools and JavaScript event libraries as well. Known for coaching teams on code quality and operational maturity, he balances strategic leadership with ongoing open-source craftsmanship. An understated detail: he’s contributed subtle but impactful fixes (like transaction block support and connection lifecycle methods) that improve reliability for many downstream users.
18 years of coding experience
18 years of employment as a software developer
English, Spanish, Hebrew
Stackoverflow
5,750reputation
2.4mreached
46answers
0questions
gmail
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pipe
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javascript
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hyperlink
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Github Skills (52)
application-framework10
javascript10
website-development10
event-handling10
coffeescript10
web-application10
facebook-api10
redis10
testing10
cucumber10
app-framework10
http10
webscraping10
refactor10
headless-browser10
Programming languages (19)
Github contributions (5)
redis/redis-rb
Feb 2010 - Sep 2017
A Ruby client library for Redis
Role in this project:
Back-end Developer
Back-end DeveloperContributions:364 commits, 66 PRs, 100 pushes in 7 years 8 months
Contributions summary:Damian primarily contributed to the Ruby client library for Redis by implementing features related to the MULTI/EXEC commands. Their work includes adding support for running MULTI/EXEC with a block, ensuring proper handling of errors within the transactions, and creating tests to validate the correct behavior. They also merged master branch changes, added support for the HMSET command, and corrected test behavior, demonstrating proficiency in managing and enhancing the library's functionality.
redisruby-client
redis/redis-io
Sep 2010 - Mar 2017
Application running http://redis.io
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:167 commits, 28 PRs, 53 pushes in 6 years 7 months
Contributions summary:Damian primarily worked on enhancing the functionality and user experience of the redis.io website. Their contributions included adding features such as command reference filtering, a download section, and a basic community page. The user also focused on improving the website's design, styling, and responsiveness, as well as fixing code and improving the overall presentation of information.
redistimeseriesredisredis-client
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