Alex Tambellini
Staff Software Engineer at Campus
Pittsburgh, Pennsylvania, United States
Summary
👤
Senior🎓
Top SchoolAlex Tambellini is a Staff Software Engineer with 15 years of experience building full-stack web and mobile applications, spanning server configuration, backend systems, databases, and frontend UX. He has held senior and founding-engineer roles at startups and enterprises—including contributions at IBM and a founding engineer stint at Sizzle AI—and currently drives engineering at Campus. Alex is deeply versed in the Ruby ecosystem (including JRuby, where he contributed core fixes and features), as well as Python, JavaScript/TypeScript, and a wide array of infrastructure tech like nginx, Debian, Postgres, Redis, and Elasticsearch. Known for bridging ops and application development, he routinely dives into low-level runtime and I/O issues as well as high-level UX and API design. Based in Pittsburgh and educated at Carnegie Mellon, he blends systems-level rigor with product-minded delivery and a track record of shipping reliable, scalable services.
15 years of coding experience
15 years of employment as a software developer
B.S. Information Systems, B.S. Information Systems at Carnegie Mellon University
Github Skills (13)
ruby10
javas10
jvm10
java10
fileio9
file-access9
file-handling9
file-processing9
bigdecimal9
data-structures8
data-structure8
apidoc7
api7
Programming languages (9)
Github contributions (5)
jruby/jruby
Dec 2012 - Jun 2014
JRuby, an implementation of Ruby on the JVM
Role in this project:
Back-end Developer
Back-end DeveloperContributions:158 commits, 35 comments, 6 issues in 1 year 6 months
Contributions summary:Alex primarily contributed to the JRuby project by addressing various issues and implementing new features related to core Ruby functionalities. Their work included updating external dependencies, adding multiple assignment support for Java collections, and implementing methods to handle file I/O operations. The user's contributions also extended to fixing bugs in existing methods, such as BigDecimal#div and updating internal workings of time methods to handle the correct input arguments.
ruby-languageconcurrencyrubyjvmperformance
griff/jruby
Jan 2013 - May 2013
Contributions:4 commits in 4 months
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