Denys Gonchar
Senior SW Developer at Erlang Solutions
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolDenys Gonchar is a Senior Software Developer with nine years of professional experience and deep roots in embedded systems, now focused exclusively on Erlang since 2016. Based in Krakow, he combines low-level debugging expertise—race conditions, deadlocks, memory and portability work from his EchoStar and Motorola years—with production-grade backend and DevOps contributions at Erlang Solutions. He has hands-on experience hardening distributed systems and databases, notably configuring Cassandra and TLS for the widely used MongooseIM XMPP server and implementing SASL EXTERNAL authentication in CI environments. Comfortable across system programming, clustering, and secure deployment pipelines, he brings a pragmatic engineering approach to reliability and scalability challenges.
9 years of coding experience
10 years of employment as a software developer
Secondary education, Computer Programming, Secondary education, Computer Programming at liceum 174Kharkiv National University of Radio Electronics
English, Ukrainian, Polish
Github Skills (18)
tls1210
erlang10
database-connection10
cassandra10
scripting10
databases10
server-configuration10
tls1310
mtls10
script10
libtls10
sh10
shell10
database10
dockers9
Programming languages (9)
Github contributions (5)
esl/MongooseIM
Dec 2017 - Jan 2023
MongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is fault-tolerant and can utilise the resources of multiple clustered machines.
Role in this project:
DevOps Engineer & Backend Developer
DevOps Engineer & Backend DeveloperContributions:2 releases, 290 reviews, 339 commits in 5 years 2 months
Contributions summary:Denys primarily focused on setting up and configuring the Cassandra database and ensuring secure communication using TLS within the Travis CI environment. They implemented TLS for Cassandra on Travis and created shell scripts to handle database setup and configuration for various databases. Additionally, they contributed to the implementation of the SASL EXTERNAL authentication mechanism, demonstrating an understanding of backend authentication protocols.
fault-tolerantscalablexmpp-servererlangxmpp
esl/amoc-arsenal-xmpp
Oct 2019 - Feb 2023
Contributions:14 reviews, 38 commits, 12 PRs in 3 years 4 months
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