Artem Potapenko
Team leader
Experience
Team leader
Oyatsu
- Designed and optimized backend systems using Spring Boot, developing RESTful APIs, integrating databases, and implementing secure authentication for high-traffic enterprise applications.
- Created responsive, cross-platform interfaces with Java and React, leveraging state management solutions and UI frameworks to deliver seamless user experiences.
- Modeled and maintained database schemas (PostgreSQL, MySQL, MongoDB) for healthcare solutions, ensuring HIPAA compliance, scalability, and high-performance query execution.
- Deployed and managed cloud-native applications on AWS, leveraging EC2, S3, RDS, Kubernetes, and Lambda to achieve secure, scalable, and highly available infrastructure.
- Developed automation workflows using Spring Boot integrated with Zapier and n8n, enabling seamless data synchronization, task orchestration, and intelligent process automation across systems.
- Developed Java-based automation systems integrating LLMs (OpenAI) to streamline workflows and enable intelligent, data-driven process automation.
Senior Engineer
Iteo
- Designed and deployed scalable microservices and serverless systems using Celery with Redis/RabbitMQ for distributed task management and real-time workflows.
- Developed and maintained backend services with Spring Boot, building REST APIs, integrating relational and NoSQL databases, and optimizing performance via microservices and caching strategies.
- Led the modernization of legacy frontends by migrating to React, updating the codebase while maintaining functionality and system performance.
- Built secure, real-time communication platforms using WebSockets, Kafka, and gRPC, implementing advanced authentication and authorization protocols (OAuth2, JWT, RBAC).
Developer
Winncom Technologies
- Built automated testing frameworks using JUnit, TestNG, Mockito, and Selenium, applying performance optimization techniques to ensure scalable, reliable, and high-performing Java applications.
- Developed responsive, user-focused React interfaces using Redux for state management and UI frameworks like Bootstrap and Semantic UI, collaborating on UX/UI design in Figma and optimizing performance and SEO through server-side rendering (SSR).
- Architected and delivered comprehensive ERP systems, integrating finance, inventory, HR, and sales modules to enable scalable operations, workflow automation, and real-time reporting.
Industries Experience
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Experienced in Information Technology (12 years) and Healthcare (4 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (12 years), Product Development (12 years), and Quality Assurance (4 years).
Summary
I’m a Senior Full Stack Engineer with 10+ years of experience delivering enterprise-grade applications and user-focused digital products. On the backend, I specialize in Java, Kotlin, and Spring Boot, building secure APIs, modular services, and high-performance platforms with a focus on clean architecture and maintainability. On the frontend, I work with modern TypeScript frameworks such as React, Next.js, Vue, Nuxt, Angular, and SvelteKit to create responsive, high-performing interfaces for web and mobile. I excel at combining backend scalability with frontend innovation to deliver solutions that are both robust and engaging.
Skills
- Backend: Java (Spring Boot, Kotlin, Maven, Gradle), Api Development (Restful Apis, Graphql), Architecture (Mvc, Microservices)
- Frontend: Angular, React, Next.js, React Native, Vue.js, Nuxt.js, Responsive Ui/ux Design, State Management (Redux, Vuex, Pinia, Zustand), Component Libraries (Material Ui, Ant Design, Vuetify), Ssr (Server-side Rendering) & Ssg (Static Site Generation)
- Databases: Postgresql, Mysql, Mongodb, Redis, Vector Databases (Pinecone, Weaviate, Faiss, Milvus)
- Devops / Cloud: Docker, Kubernetes, Aws (Lambda, S3, Ec2), Ci/cd Pipelines (Github Actions, Gitlab Ci, Jenkins), Monitoring & Logging (Prometheus, Grafana, Elk Stack)
- Other: Openai, Zapier, N8n, Websockets, Kafka, Grpc, Elasticsearch, Authentication & Security (Oauth2, Jwt, Rbac), Testing (Rspec, Testng, Mockito, Selenium), Performance Optimization & Scalability
Languages
Education
Kobe University
Bachelor Degree · Kobe, Japan
Profile
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