Oleksandr Ansimov
Driving quality cloud-native solutions in Java, distributed systems & AI-powered workflows.
Full time
Remote
Senior Java Developer with 14 years of experience designing and implementing enterprise backend and cloud-native systems across fintech, healthcare, logistics,...
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My Career Journey
1/6
Citibank
Senior Java / Big Data Developer
Jun 2023 - Present | 3y 3m
Developed and maintained distributed data processing applications, implemented backend features, supported production monitoring, led Spark migration from 2.4 to 3.3, contributed to code reviews and release...
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Banyan Infrastructure
Senior / Lead Java Developer
Jul 2022 - Jun 2023 | 11m
Led backend team development and implementation, translated business requirements into technical solutions, designed and implemented backend services, participated in technical decisions and code reviews,...
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CHI Software
Senior Java Developer
Jun 2017 - Jul 2022 | 5y 1m
Implemented backend functionality for messaging features in Gumtree, led migration to microservices for HwyHaul, developed cloud-integrated backend for Chewy, supported system decomposition and API/event-driven...
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Mimacom
Full-Stack Java Developer
Dec 2016 - Jun 2017 | 6m
Delivered features end-to-end, fixed security issues, implemented reporting in an enterprise communication platform.
Academy Smart
Java Developer
Oct 2014 - Nov 2016 | 2y 1m
Modernized legacy recruitment platform to REST-based services, designed reusable integration layer, delivered backend and UI updates.
Climb-IT
Full-Stack Software Engineer
Nov 2013 - Oct 2014 | 11m
Developed backend features and new functionality for educational social network, maintained application quality.
Education
National Aerospace University “Kharkiv Aviation Institute”
Quality Certification and Standardization
2004
National Aerospace University “Kharkiv Aviation Institute”
Aviation and Astronautics
2002
Certifications & Qualifications
AWS Certified Solutions Architect - Associate
2018
Language(s) I speak
English
Fluent
Polish
Intermediate
Ukrainian
Fluent