07/21/2026 updated
DK
100 % available
Senior AI & Backend Engineer
Nagoya, Japan
Worldwide
M.S in Computer Science & EngineeringAbout me
I am an software engineer with over 10 years of experience designing and successfully building scalable web applications, AI powered products, and enterprise grade software solutions. Leveraging expertise in React, Next.js, TypeScript, and modern frontend architectures
RustMachine LearningNext-Generation NetworksNode.jsPHP DevelopmentBlockchainNext.jsReact.jsGenerative AIBackendBackend ProgrammingFront End Software DevelopmentArtificial Intelligence Markup Language (AIML)
AI / Machine Learning
Expertise in LLM Integration, RAG Systems, and NLP Concepts, with hands-on experience building AI-driven automation systems and integrating generative AI into production-grade backend services.
Backend Development
Proficiency in Python and Node.js with frameworks such as FastAPI and Express, designing scalable REST APIs and GraphQL services for distributed systems and enterprise applications.
Cloud & DevOps
Strong background in AWS-based infrastructure, Docker, CI/CD pipelines using GitHub Actions, and serverless architectures, optimizing for scalability, monitoring, and cost efficiency.
Frontend Development
Solid experience with React, Next.js, NestJS, Vue.js, TypeScript, and Tailwind CSS, building responsive and high-performance web applications.
Databases
Hands-on experience with PostgreSQL, MySQL, and MongoDB for designing and managing relational and non-relational data storage solutions.
Data Processing Pipelines
Design and implementation of automation workflows and data processing pipelines supporting real-time data processing and distributed system coordination.
Blockchain & Decentralized Applications
Architecture and deployment of private blockchain networks using Hyperledger Fabric and 12+ Ethereum-based decentralized applications, focusing on smart contract architecture and gas optimization.
System Design & Architecture
Strong system design capabilities across AI, Web3, and full-stack domains, with a focus on production-ready, scalable, and maintainable solutions.
Expertise in LLM Integration, RAG Systems, and NLP Concepts, with hands-on experience building AI-driven automation systems and integrating generative AI into production-grade backend services.
Backend Development
Proficiency in Python and Node.js with frameworks such as FastAPI and Express, designing scalable REST APIs and GraphQL services for distributed systems and enterprise applications.
Cloud & DevOps
Strong background in AWS-based infrastructure, Docker, CI/CD pipelines using GitHub Actions, and serverless architectures, optimizing for scalability, monitoring, and cost efficiency.
Frontend Development
Solid experience with React, Next.js, NestJS, Vue.js, TypeScript, and Tailwind CSS, building responsive and high-performance web applications.
Databases
Hands-on experience with PostgreSQL, MySQL, and MongoDB for designing and managing relational and non-relational data storage solutions.
Data Processing Pipelines
Design and implementation of automation workflows and data processing pipelines supporting real-time data processing and distributed system coordination.
Blockchain & Decentralized Applications
Architecture and deployment of private blockchain networks using Hyperledger Fabric and 12+ Ethereum-based decentralized applications, focusing on smart contract architecture and gas optimization.
System Design & Architecture
Strong system design capabilities across AI, Web3, and full-stack domains, with a focus on production-ready, scalable, and maintainable solutions.
Experience
Professional experience5 - 10 years
Freelancer since2016
Languages
EnglishFluent
Project history
Designed and implemented AI-driven automation systems for supply chain workflows, reducing operational costs by 40%. Architected and deployed a private blockchain network using Hyperledger Fabric, reducing security risks by 93%. Built and deployed 12+ Ethereum-based decentralized applications. Developed backend services integrating LLM-based systems (RAG architecture) and designed scalable API architectures supporting real-time data processing.
Designed and implemented backend systems for logistics and export inspection workflows. Built high-performance data processing modules using C++ and Python for large-scale datasets. Architected and deployed AWS-based infrastructure optimizing for scalability, monitoring, and cost efficiency. Developed automation pipelines and collaborated across teams to modernize legacy systems.
Developed a real estate platform serving 3,600+ users with dynamic search and responsive UI. Improved web performance by 75% through frontend optimization and efficient architecture design. Built responsive web applications using React, modern JavaScript frameworks, and component-based architecture.