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I'm a Senior Full Stack Engineer with 10+ years of experience delivering scalable enterprise applications and intuitive digital products. On the backend, I specialize in Java, architecting robust APIs, modular services, and high-performance platforms with Spring Boot and Kotlin, while ensuring clean architecture, security, and maintainability. On the frontend, I leverage modern TypeScript frameworks — including React, React Native, Next.js, Vue.js, Nuxt, Angular, and SvelteKit — to build responsive, performant, and user-friendly interfaces that scale seamlessly across web and mobile environments. I bridge backend reliability with frontend innovation, creating systems that are technically solid and highly engaging for end users.…I'm a Senior Full Stack Engineer with 10+ years of experience delivering scalable enterprise applications and intuitive digital products. On the backend, I specialize in Java, architecting robust APIs, modular services, and high-performance platforms with Spring Boot and Kotlin, while ensuring clean architecture, security, and maintainability. On the frontend, I leverage modern TypeScript frameworks — including React, React Native, Next.js, Vue.js, Nuxt, Angular, and SvelteKit — to build responsive, performant, and user-friendly interfaces that scale seamlessly across web and mobile environments. I bridge backend reliability with frontend innovation, creating systems that are technically solid and highly engaging for end users.

Oleksandr Netudykhata

Full Stack Developer, Web Developer, Programmer, +3

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I'm a Senior Full Stack Engineer with 10+ years of experience delivering scalable enterprise applications and intuitive digital products. On the backend, I specialize in Java, architecting robust APIs, modular services, and high-performance platforms with Spring Boot and Kotlin, while ensuring clean architecture, security, and maintainability. On the frontend, I leverage modern TypeScript frameworks — including React, React Native, Next.js, Vue.js, Nuxt, Angular, and SvelteKit — to build responsive, performant, and user-friendly interfaces that scale seamlessly across web and mobile environments. I bridge backend reliability with frontend innovation, creating systems that are technically solid and highly engaging for end users.…I'm a Senior Full Stack Engineer with 10+ years of experience delivering scalable enterprise applications and intuitive digital products. On the backend, I specialize in Java, architecting robust APIs, modular services, and high-performance platforms with Spring Boot and Kotlin, while ensuring clean architecture, security, and maintainability. On the frontend, I leverage modern TypeScript frameworks — including React, React Native, Next.js, Vue.js, Nuxt, Angular, and SvelteKit — to build responsive, performant, and user-friendly interfaces that scale seamlessly across web and mobile environments. I bridge backend reliability with frontend innovation, creating systems that are technically solid and highly engaging for end users.

Available to hire

I’m a Senior Full Stack Engineer with 10+ years of experience delivering scalable enterprise applications and intuitive digital products. On the backend, I specialize in Java, architecting robust APIs, modular services, and high-performance platforms with Spring Boot and Kotlin, while ensuring clean architecture, security, and maintainability.

On the frontend, I leverage modern TypeScript frameworks — including React, React Native, Next.js, Vue.js, Nuxt, Angular, and SvelteKit — to build responsive, performant, and user-friendly interfaces that scale seamlessly across web and mobile environments. I bridge backend reliability with frontend innovation, creating systems that are technically solid and highly engaging for end users.

Skills

Experience Level

Expert

Expert

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Expert

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Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

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Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Lead developer at Kolbenschmidt Pistons

July 31, 2025 - August 18, 2025

Architected and implemented robust backend solutions, including RESTful APIs and services for efficient handling of real estate transactions and user interactions. Developed secure payment processing integrations and implemented KYC/AML compliance workflows. Integrated PostgreSQL database management with optimized schemas and performance tuning. Utilized AWS S3 for secure file storage and AWS Lambda for background task processing. Built dynamic, responsive user interfaces with advanced features like filtering, sorting, and real-time updates using WebSocket. Leveraged TikZ/PGF and LaTeX for high-quality diagrams and automated report generation. Developed data dashboards with D3.js and Chart.js for market insights. Ensured security compliance, deployed scalable cloud infrastructure, and collaborated with design teams for pixel-perfect UI/UX implementation.

Senior Developer at EVOCODE

April 30, 2023 - August 18, 2025

Key role in developing a tax calculation project using Next.js for accurate, user-friendly tax management. Built modular React components for complex tax calculations and implemented server-side logic via getServerSideProps. Created dynamic routing and API integration with real-time external tax rate APIs. Employed data caching strategies with React Query and Next.js caching for efficiency. Designed tax calculation diagrams and generated formatted tax reports using TikZ/PGF and LaTeX. Implemented SSR for speed and SEO benefits. Streamlined tax computation logic with memoization and optimized data structures. Developed unit and integration tests using Jest and Supertest. Collaborated with financial experts to ensure alignment with current tax policies.

Developer at ententee

January 31, 2018 - August 18, 2025

Specialized in building and enhancing eCommerce platforms using React, Express, PostgreSQL, and WebSocket technology. Developed reusable, responsive UI components and managed complex application state via Redux. Implemented advanced product search, filtering, lazy loading, and code splitting for performance optimization. Designed RESTful APIs for product management, order processing, payment gateways, and authentication. Integrated WebSocket for real-time inventory and order status updates. Managed secure payment processing with Stripe and PayPal integrations. Implemented real-time notifications and user activity tracking via Kafka for enhanced user engagement. Ensured backend API reliability through unit testing.

Senior Lead developer at Kolbenschmidt Pistons

July 31, 2025 - August 27, 2025

Architected and implemented robust backend solutions including RESTful APIs and services for efficient management of real estate transactions and user interactions. Developed secure payment processing integrations and compliance workflows for KYC/AML regulations. Integrated PostgreSQL and optimized database performance using indexing and Redis caching, ensuring scalability and data integrity. Built dynamic, responsive user interfaces and real-time features using WebSocket. Leveraged AI models integration for intelligent features and automated generation of reports and diagrams using LaTeX and TikZ/PGF. Managed cloud infrastructure on AWS with Lambda functions for background tasks and S3 for media storage. Collaborated with design teams for UI/UX excellence.

Senior Developer at EVOCODE

April 30, 2023 - August 27, 2025

Led development of a tax management application using Next.js, creating modular React components for complex tax calculations and compliance. Integrated digital wallet and real-time transaction monitoring for fraud detection. Worked on AI models integration such as OpenAI and Claude for advanced conversational agents and data insights. Utilized Next.js server-side rendering and caching for performance and SEO. Created tax calculation diagrams with TikZ/PGF and automated report generation with LaTeX. Implemented unit and integration testing around financial logic. Collaborated with financial experts to maintain regulatory alignment.

Developer at ententee

January 31, 2018 - August 27, 2025

Specialized in building and enhancing eCommerce platforms with React front-end and Express back-end architecture using PostgreSQL and WebSockets for real-time interactions. Developed reusable UI components, dynamic search/filter features, and state management with Redux. Designed RESTful APIs for product, order, payment, and user management ensuring security and PCI compliance. Integrated WebSocket for real-time updates on inventory and order status. Leveraged kafka for user activity tracking. Ensured application scalability and performance with lazy loading, code splitting, and unit testing of backend APIs.

Senior Lead Developer at Kolbenschmidt Pistons

August 1, 2025 - September 16, 2025

Facilitated Agile workflows using Asana, Jira and Google Workspace to coordinate and deliver complex enterprise initiatives. Developed and optimized scalable backend systems with Java and Kotlin, implementing RESTful APIs, database integrations, and secure authentication to support high-traffic applications. Built dynamic, responsive interfaces with React and React Native, leveraging state management and component libraries to deliver seamless user experiences across web and mobile platforms. Designed and optimized database schemas (PostgreSQL, MySQL, MongoDB) for reliable data handling, ensuring performance, scalability, and data integrity. Deployed and managed cloud-native applications on AWS (EC2, S3, Lambda) to ensure scalability, security, and high availability.

Senior Developer at EVOCODE

April 1, 2023 - September 16, 2025

Designed and deployed scalable microservices and serverless architectures, leveraging Spring Boot and Kotlin to deliver robust APIs and modular services. Built and maintained backend systems with RESTful APIs, integrated relational and NoSQL databases, and implemented efficient caching and monitoring. Implemented real-time communication using WebSockets, Kafka, and gRPC, and established secure authentication and authorization with OAuth2, JWT, and RBAC. Developed a cross-platform mobile app using React Native, integrating REST APIs and Redux for state management.

Developer at ententee

January 1, 2018 - September 16, 2025

Implemented automated testing frameworks (JUnit, TestNG, Mockito, Selenium) and applied performance optimization strategies to deliver scalable Java applications. Developed responsive, user-centric interfaces with modern state management and component libraries, while leveraging SSR/SSG techniques for performance and SEO. Designed and developed end-to-end ERP solutions, integrating modules for finance, inventory, HR, and sales, enabling scalable workflows and real-time reporting.