Резюме: Java developer (Вінниця)

Досвід роботи

<p>DMYTRO LEMESHCHENKO</p>
<p> Java Backend Developer</p>
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<p> Odesa, Ukraine (Remote)</p>
<p> dimmonishe@gmail.com </p>
<p> www.linkedin.com/in/dmitrii-lemeshchenko/ </p>
<p>+380634164161</p>
<p> t.me/dimmonishe</p>
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<p>PROFESSIONAL SUMMARY</p>
<p>Results-oriented Java Backend Developer with 3+ years of commercial experience, specializing in the Fintech sector. Proven track record in designing and maintaining high-load, microservice-based Payment Service Provider (PSP) infrastructures. Expert in building secure, scalable systems with a deep understanding of data privacy, encryption, and financial regulations (PCI DSS certified).</p>
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<p>TECHNICAL SKILLS</p>
<p> • Core: Java 11/17/21, OOP, SOLID, GRASP.</p>
<p> • Frameworks: Spring Boot , Spring Security/Web/MVC/Data, Hibernate, JPA, Servlet API.</p>
<p> • Databases : PostgreSQL, MySQL, MongoDB, H2, PGVector.</p>
<p> • Architecture &amp; Integrations : Microservices, REST APIs, Kafka, RabbitMQ, AWS, Google Cloud Services.</p>
<p> • Tools &amp; DevOps: Git, GitHub/GitLab , Maven, Gradle , Docker , Linux, Swagger, Flyway, Liquibase, Postman.</p>
<p> • Testing: JUnit, Mockito.</p>
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<p>WORK EXPERIENCE</p>
<p>Java Software Developer | Asquad | Feb 2025 – Present</p>
<p> • Engineered and optimized secure payment modules for a complex Payment Service Provider (PSP) infrastructure, ensuring 100% compliance with financial security standards.</p>
<p> • Successfully maintained and scaled microservices handling sensitive financial data (PostgreSQL, MongoDB, Kafka, RabbitMQ), ensuring high availability and system resilience.</p>
<p> • Streamlined internal team workflows and CI/CD collaboration, resulting in a 15% increase in development velocity over a six-month period.</p>
<p>Java &amp; Kotlin Developer | Change the World (Startup) | May 2023 – Feb 2025</p>
<p> • Built robust backend architecture for "Rate Me" and "Watch for Ukraine" Android applications.</p>
<p> • Integrated AWS for secure storage; utilized Kotlin/Java to ensure seamless communication with Jetpack Compose UI.</p>
<p> • Developed monetized ad-revenue infrastructure to support volunteer funds.</p>
<p>Java Backend Developer | UWP Digital | Sep 2023 – Mar 2024</p>
<p> • Deployed robust Java applications to parse high volumes of open-source data.</p>
<p> • Trained and integrated a ChatGPT-4 model utilizing PGVector for advanced data processing.</p>
<p> • Architected a scalable, multilingual online support service using AWS and GCP.</p>
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<p>EDUCATION </p>
<p> • Mate Academy: Java Software Developer Courses (2022)</p>
<p> • Odessa State Academy of Refrigeration: Master's Degree (2003)</p>
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<p>LANGUAGES</p>
<p> • English: Upper-Intermediate</p>
<p> • Ukrainian: Native</p>
<p> • Russian: Native</p>