Volodymyr Mykhailov
Developer at CallFire
Ukraine
Summary
👤
Senior🎓
Top SchoolVolodymyr Mykhailov is a seasoned Java developer with 11 years of experience building and modernizing enterprise applications, currently contributing at CallFire from Ukraine. He has deep hands-on expertise in Java EE, IBM WebSphere Commerce customizations, and migrating legacy EJB systems to modern architectures, plus practical experience setting up CI/CD, code quality and build tooling. Volodymyr has also mentored Java trainees and introduced design review and documentation practices, reflecting a strong focus on craftsmanship and team enablement. Trained in information security, he brings an attentive, security-minded approach to integration work across payment and analytics systems. Known for fast learning and initiative, he combines backend depth with a history of infrastructure improvements that reduce friction across projects.
11 years of coding experience
4 years of employment as a software developer
Bachelor’s Degree, Security of information and communication systems, Bachelor’s Degree, Security of information and communication systems at National Aviation UniversityAssociate’s Degree, Maintenance of intellectual and informational networks and systems, Associate’s Degree, Maintenance of intellectual and informational networks and systems at Chernihiv Radio – Mechanical College
English, Russian, Ukrainian
Github Skills (31)
callfire10
mms10
sms9
voice9
client-library8
telecom8
api8
messaging8
api-client7
rest7
rest-api7
java-api6
swagger-ui6
csharp6
rest-client6
Programming languages (3)
Github contributions (5)
CallFire/callfire-api-client-java
Sep 2015 - Dec 2019
Callfire API v2 REST client for Java programming language
Contributions:13 releases, 95 PRs, 123 pushes in 4 years 3 months
api-clientapicallfirejava-programmingclient-library
CallFire/eztexting-api-client-java
Dec 2015 - Mar 2018
Contributions:1 release, 7 PRs, 7 pushes in 2 years 3 months
apirestrest-apijavajava-client
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