Aleksandr Guselnikov

PROFESSIONAL SUMMARY Experienced Software Engineer with hands-on experience across product development and quality engineering. Primary stack is Java and Spring, with hands-on experience across business logic, REST integrations, persistence, databases, CI/CD and production delivery, as well as targeted frontend changes when needed. Brings a strong quality and reliability mindset and uses controlled agentic AI workflows to accelerate delivery while keeping changes reviewable and protected by automated tests

- Worked on building and launching an in-house microservices-based mortgage processing platform that replaced a legacy vendor monolith; reduced typical application processing time from hours or days to minutes, enabled fully automated approval for eligible cases, and reduced manual back-office work. - Contributed directly to Java/Kotlin/Spring product code, independently implementing small backend changes and bug fixes, including JPA/Hibernate entities, PostgreSQL schema changes and Liquibase migrations, as

- Worked on building and launching an in-house microservices-based mortgage processing platform that replaced a legacy vendor monolith; reduced typical application processing time from hours or days to minutes, enabled fully automated approval for eligible cases, and reduced manual back-office work. - Contributed directly to Java/Kotlin/Spring product code, independently implementing small backend changes and bug fixes, including JPA/Hibernate entities, PostgreSQL schema changes and Liquibase migrations, as

Started in manual QA and moved into Java test automation across government and municipal ERP systems and digital-archive products, using TestNG, Selenium/Selenide, Allure and API testing