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🧠🤖I design, build and scale AI Agent solutions that automate real business workflows - not demos, not experiments, but production-ready systems that actually run companies. If you’re looking to build AI Agent that can think, act, integrate with your tools and improve over time, you’re in the right place. I work as an AI Agent Developer and Agentic AI Developer, helping founders, teams and companies turn complex processes into reliable AI Agent Automation systems - from internal ops to customer-facing products. 📊 Numbers that reflect real AI Agent outcomes ✅ 12+ years in AI systems, AI Agent development, full stack & software engineering ✅ 85+ digital products delivered, including AI Agent platforms and AI automation systems ✅ 57+ MVPs launched - many built around an AI Agent or agentic workflows ✅ 40+ production systems with AI Agent automation used by real users ✅ 32+ products prepared for investor demos, AI feasibility reviews & technical due diligence ✅ $2.2B+ raised by products I helped build or scale ✅ 30-45% faster launches using reusable AI Agent frameworks and automation pipelines ✅ 40% fewer post-launch issues thanks to stable AI Agent logic and controlled integrations ✅ 100% code ownership - every AI Agent stays fully in your repositories ✅ Clients working with me for 7+ years 🤝 Most projects start with one clear goal: replace manual work with an AI Agent that can operate independently. That can mean: → An AI Agent that handles support, research or acts as a sales agent embedded into real business workflows → A backend AI Agent orchestrating APIs and business logic → An AI Voice Agent for calls, bookings or assistants → A multi-agent system acting as a full AI Automation Agency replacement As an AI Agent Builder, I create systems that reason, plan and execute - not just respond. This includes: → AI Agent Creation using modern agentic patterns → AI Agent Automation across CRMs, databases, internal tools and business development workflows → AI Agent n8n workflows for orchestration and scalability → Custom AI API Integration with existing platforms Each AI Agent is designed to be reliable, explainable and easy to extend. 🧩I approach every project as an AI Developer first, not a prompt engineer. As an Open AI Developer and AI Developer LangChain practitioner, I build AI Agent systems with: • Proper state management • Tool calling and function execution • Memory, context control and fallback logic • RAG pipelines (as an AI Developers RAG specialist) • AI-first architecture This allows each AI Agent to retrieve knowledge, reason over it and act safely in real environments. When needed, I design AI Agent Automation stacks that behave like a full AI Agency, but fully owned by you. 💡Beyond one-off bots - real agentic systems A simple chatbot isn’t an AI Agent. A real AI Agent understands goals, chooses actions and completes tasks end-to-end. That’s where Agentic AI Developer experience matters. I build: → Single-purpose AI Agent tools (e.g. Pinterest marketing AI Agent or Etsy marketing AI Agent) → Multi-agent systems coordinating tasks → Internal AI Agent Creator platforms → Long-running AI Agent services Whether you need an AI Agent Builder for MVP speed or a production-grade AI Agent Automation system, the focus stays the same: stability, control and measurable impact. Strong foundations first - AI when it makes sense 🧠🔧 Every AI Agent I build sits on solid engineering foundations. I combine AI Agent Development with backend systems, APIs and infrastructure so your AI Agent doesn’t collapse under real usage. ⚙️This includes: • Backend services for AI Agent logic • Secure AI API Integration • Scalable pipelines for AI Agent Automation • Monitoring, logging and iteration loops AI should reduce chaos. 🧭 Not every problem needs AI from day one If your project doesn’t require advanced AI immediately, I also help design and build data pipelines, backend services, APIs, dashboards and MVP infrastructure that work perfectly on their own. This keeps products stable, cost-efficient and flexible - ready to introduce ML or AI features later, without forcing complexity too early. 🔍 How I usually work on AI Agent projects 1️⃣ Understand business goals, constraints and where an AI Agent creates real leverage 2️⃣ Design the right AI Agent architecture (tools, memory, APIs, automation) - not hype 3️⃣ Build and refine the AI Agent iteratively with clear milestones and validation 4️⃣ Test, launch, monitor and evolve the AI Agent in real-world usage 🧰 Core tech stack - Frontend: React, Next.js, TypeScript - Backend: Node.js, Python (FastAPI, Flask, Django) - AI & Agents: OpenAI APIs, LangChain, RAG pipelines, Agentic AI patterns - Automation: AI Agent n8n, custom orchestrators - APIs: REST API, GraphQL, Webhooks - Databases: PostgreSQL, MongoDB, Redis - Cloud & DevOps: AWS, Docker, CI/CD - Architecture: SaaS platforms, AI Agent Automation, clean code Have an AI idea in mind? Let’s make it live.

I specialize in developing Java web applications using Spring framework. From RESTful Web services to narrowly specialized apps for text recognition and other enterprise tasks. Both front-end and back-end. Also, I can design a relational database using any system you want. Skills: - Java - Spring Framework - Spring Boot - Keycloak - Vert.x - Quarkus - Vue.js - Vaadin Framework - JAX-RS - Hibernate - JSP - Freemarker - Thymeleaf - HTML/CSS - JavaScript - jQuery - Bootstrap - Tesseract OCR, Nicomsoft OCR - MySQL, PostgreSQL, Informix IBM SQL, SQLite - ElasticSearch - MongoDB I have a master degree in Software Engineering from Kyiv Polytechnic Institute. As a developer, I have also taken part and won large number of hackathons.

Hello, I'm Java(more 10 years)/Scala(5 years)/Python developer and have skills in Programming: • Java ( XSLT, Xpath, XML, SWING, JDBC, Hibernate, JSP, Servlets, Spring, JSF (MyFaces, Richfaces, ADF Oracle), Struts, Jfreereport, Jasperreport ), J2EE, JMS, Git, Ant, Maven, Web Services, REST Services; • Scala (Play Framework, Slick, Doobie, Akka, Akka-Http, Akka-stream, Cats, Scalatra, Tapir, Apache Spark, Apache Kafka, Docker); • JavaScript (Angular, jQuery); • Python (AirFlow); • Application Servers: • Tomcat, Jboss, GlassFish, Weblogic; • Databases: • Oracle, MS SQL, MySQL, PostgreSQL, MongoDB; • Administration of local networks on Linux (Fedora, Mandriva, OpenSuse, Ubuntu, Elementary OS), Solaris, and Windows-based systems; • - Cloud platforms: AWS, Google Cloud.

I am a seasoned software developer with over 10 years of experience specializing in Backend and Full-Stack development. I pride myself on my excellent problem-solving skills and have a strong passion for writing clean and testable code. Clear communication is one of my strengths, making me a valuable team member in any software development project. Preferred Tech Stack: Backend: Java, Spring Boot, Thymeleaf, REST API, PostgreSQL, AWS, Linux, Tomcat, Nginx Frontend (Web): HTML, CSS, Sass, Javascript Frontend (Mobile): Flutter, Dart Cross-Platform: Flutter, Dart I am also proficient in the following technologies: Languages: Java, Scala, Groovy, Kotlin, Golang, JavaScript, TypeScript, Python, Dart, SQL Databases: PostgreSQL, MySQL, Oracle, Cassandra, MongoDB, SQLite, Neo4j Frameworks (Backend): Spring Boot, Spring Security, OpenAPI, Kafka, Zookeeper, Grails Frameworks (Frontend): Angular, React, Flutter, jQuery, Bootstrap Security: Spring Security, OAuth, JWT Technologies: HTML, CSS, JSON, XML, REST API API: REST API, OpenAPI, Swagger Messaging: Kafka, ActiveMQ, RabbitMQ Search: ElasticSearch, Lucene, Kibana Logging: ElasticSearch, Logstash, Kibana Cloud Providers: AWS, Google Cloud Testing: JUnit, Mockito, TestNG, Selenium, Cucumber, Katalon Studio Development Tools: Intellij IDEA, VSCode, Android Studio

📣 Hello, and welcome! I'm a Senior Software developer with 6 years of commercial experience in Java, Springboot, React, Next.js, React Native, Node.js, Nest.js, and Express.js. I'm oriented on results, motivated, and responsible developer with good analytical skills and attention to detail. I'm well-versed in software development, data structures, algorithms, and object-oriented design principles. I'm skilled in utilizing various tools and technologies. Quick learner. Also, I am an active team player who wants to deliver high-quality work and continue expanding my knowledge and skills in software development. I would be happy to work with E-commerce, Fintech, HealthTech, Blockchain, EdTech, PropTech, CRM, TravelTech, InsurTech, LogistecsTech, and Gambling projects. 📌WHAT I'M OFFER: 💻WEB DEVELOPMENT I'm delivering high-performance, responsive web applications. I specialize in building modern front-end interfaces using React.js and Next.js while handling robust backend systems with Node.js, Express.js, and Nest.js. Full-stack capabilities allow me to craft seamless, end-to-end solutions, from user interfaces to database management. 💻 API DEVELOPMENT & INTEGRATION Design and develop custom RESTful APIs and GraphQL endpoints to connect applications. I integrate third-party services like Stripe, Twilio, Google Maps API, and more, ensuring seamless communication between platforms. I also implement secure authentication and authorization systems using JWT, OAuth, or custom protocols. 💻 ENTERPRISE SOLUTIONS (JAVA) I'm building scalable enterprise applications with Spring Boot or lightweight FastAPI solutions for startups. Develop and deploy microservices architectures, automate workflows, and integrate powerful tools like Kafka and RabbitMQ for real-time processing. 💻 REAL-TIME & eCommerce SOLUTIONS I'm developing real-time applications such as chat apps, live notifications, and streaming platforms using WebSockets. Build custom eCommerce platforms with payment integrations like Stripe, PayPal, and others, providing features like cart management, inventory tracking, and order processing. 💻 CLOUD & DevOps I'm deploying and managing scalable applications on cloud platforms like AWS, Google Cloud, Azure, Heroku, and Vercel. I handle CI/CD pipelines for automated testing and deployment, leveraging Docker and Kubernetes for containerized environments. 💻 DATA-DRIVEN APPLICATIONS I'm creating interactive data dashboards using React tools. I automate data pipelines and web scraping tasks with pandas, NumPy, Scrapy, and Selenium. I also integrate machine learning models into applications for advanced analytics and predictions. 📌 My Javascript Front-end skills: Javascript, Typescript, React.js, Next.js, React Native (CLI/Expo), TailwindCSS, Material UI, Ant Design, SCSS, HTML5, CSS3, Redux Thunk, Redux Saga, Chakra UI, Bootstrap. 📌 My Javascript Back-end skills: Node.js, Nest.js, Express.js, Jest, Fastify, GraphQL, Docker. 📌 My Java skills: Java21, Spring (Boot, Core, MVC, Security, Data, Cloud, Javamail), Concurrency, SOLID, OOP, JakartaEE, JSP, Tomcat, Thymeleaf, JUnit, Mockito, Maven, Gradle. Docker, Lombok 📌 My Database skills: Hibernate, JDBC, Liquibase, SQL, NoSQL, PostgreSQL, MySQL, Objection, Knex, Prisma, MongoDB. 📌Other skills: Stripe, Firebase, Mapbox, GoogleMap, Google Analytics, Google Cloud, KuCoin API, OAuth2, WordPress, AWS. 📌API Tools: Swagger, Postman 📌KEYWORDS: JavaScript, Firebase, Vue.js, Angular, Svelte, D3.js, Chart.js, Three.js, PostgreSQL, React.js, Python, Spring Boot, Docker, Redis, Google Analytics, Kubernetes, Next.js, NumPy, Tailwind CSS, Google Maps API, TensorFlow, AWS S3, JPA, Redux, Material-UI, Selenium, MongoDB, Django, Stripe, Node.js, Jupyter Notebooks, OpenCV, Vercel, Cloudflare, React Native, Celery, ElasticSearch, Hibernate, Express.js, PyTorch, Twilio, Nest.js, pandas, RabbitMQ, Spring Framework, Pipedrive, Google Cloud, GraphQL, scikit-learn, MUI, Azure Functions, Jenkins, Ansible, RESTful APIs, Heroku, Kafka, JSP, OpenAPI, FastAPI, Bitbucket, Gradle, Tomcat, SendGrid, Chakra UI, WebSockets, Java EE, Apache Spark, Servlets, Storybook, Maven, JUnit, SQLite, Scrapy, SQLAlchemy, Apache Kafka, PayPal, Azure DevOps, Microservices, Terraform, Electron.js, Webpack, Babel, ESLint, Vite, Jest, Cypress, Puppeteer, Mocha, Jasmine, Lodash, RxJS, Immutable.js.

I help identify critical bugs, broken workflows, and data inconsistencies before they impact users. My focus is practical QA not just checking features, but validating real user flows, business logic, integrations, and overall product stability. I work with web and mobile applications, SaaS platforms, dashboards, ecommerce systems, AI-powered products, and data-driven applications. What you can expect from me ✔ Clear, structured bug reports with reproduction steps, expected vs actual results, screenshots, and impact assessment ✔ Manual testing: Functional, Regression, Smoke, Sanity, Exploratory, User Acceptance, and End-to-End testing ✔ Strong edge-case and negative scenario coverage based on real user behavior ✔ API testing with Postman, including request validation, response verification, error handling, and workflow testing ✔ UI, API, and database validation to ensure consistency across systems ✔ Automation support with Playwright, Cypress, and Selenium ✔ Cross-browser and cross-device testing (Desktop, iOS, Android) ✔ DevTools usage for Network, Console, and request inspection ✔ Test case creation, test execution, bug tracking, and release validation ✔ Clear communication with developers, project managers, and stakeholders How I test I approach products the way real users interact with them: repeated actions, interrupted workflows, invalid inputs, mobile responsiveness, permissions, account states, and unexpected behavior. In addition to standard test execution, I use exploratory testing to uncover hidden issues, inconsistent states, failed requests, usability problems, and workflow gaps that may not be covered by predefined test cases. Tools & Technologies • Postman • Playwright • Cypress • Selenium • Browser DevTools • REST APIs • JSON / XML • SQL (basic querying and validation) • GitHub Actions • Jenkins My goal My goal is simple: help teams release reliable, stable, and user-friendly products by providing thorough testing, actionable feedback, and high-quality bug reports. Available for both short-term projects and long-term collaboration.