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Freelance Backend Developer & Independent Projects (2022.05 – Present) — Java/Spring Boot Backend Developer Continued to strengthen backend development skills through AI automation development projects, daily commits, and technical blogging.
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Metanet Global (2022.01 – 2022.04) — Backend Developer Worked on digital financial services based on Spring Framework, MyBatis, Oracle DB, and JSP. Contributed to OTP authentication improvements, payment API integration, and transaction monitoring features.
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KuroEnsis (2021.04 – 2021.12) — Web Developer Maintained and modernized public-sector web systems. Worked on Spring migration, security vulnerability fixes, Log4j emergency response, SSL configuration, and legacy system improvements.
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vajaul Information Technology (2018.12 – 2021.03) — SI Developer Developed enterprise systems for hospitals and research institutions. Worked on IRB, IACUC, and CTMS modules in the healthcare domain, gaining experience with Spring Framework, GWT, MyBatis, Oracle DB, EhCache, eGovFrame, and legacy system migration.
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2KSystem (2016.11 – 2018.11) — SI Developer Developed large-scale public-sector call center systems. Worked on consultation management systems based on Spring Framework, MyBatis, Oracle DB, JSP, jQuery, CTI integration, and reporting tools.
I may be slow to respond.
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