YUKI IDEURA Senior Software Engineer yuki-ideura@outlook.jp www.linkedin.com/in/yuki-ideura-2556523b6 Japan Summary ====== Senior software developer with 10+ years of experience building web applications, MVPs, and AI-enabled products across product teams, freelance work, and full-time roles. Strong hands-on background in Node.js, TypeScript, React, Next.js, Python, PostgreSQL, Docker, and AWS. Solid experience in backend design, infrastructure support, deployment, and production delivery. Worked on CRM products, healthcare SaaS, education ERP systems, hotel service platforms, and custom client projects. Experience ====== Senior Technical Lead BennettLive 06/2025 - 12/2025 - Led infrastructure planning and technical delivery for a CRM product with AI features in a 2-member team, owning deployment setup, environment readiness, and release support. - Built and maintained Docker-based workflows, AWS deployment setup, and CI/CD-related processes for staging and production environments. - Supported PostgreSQL setup, service integrations, and backend environment needs to help keep the application stable as changes moved across releases. - Handled deployment tasks, testing support, bug fixes, and release coordination in an Agile team using Jira. Senior Software Engineer 12/2024 - 05/2025 - Helped deliver an AI-enabled CRM MVP in a 2-member team, covering product features and the technical setup needed for the first release. - Created React and Next.js screens for customer-facing pages and internal workflows, keeping the UI easy to extend as requirements changed. - Implemented Node.js APIs and PostgreSQL-backed logic for core CRM behavior, including service integrations needed for early product requirements. - Added OpenAI-driven workflows to selected features and supported Docker setup, deployment, testing, and release work across staging and production. Freelance Software Engineer Fiverr 08/2022 - 11/2024 - Delivered web and AI projects for multiple clients through Fiverr, handling requirement review, implementation, revisions, and release support end to end. - Built backend services with Python and Node.js for custom business logic, third-party integrations, and automation work based on each client’s needs. - Developed React and TypeScript frontends for dashboards, admin tools, and user-facing workflows, adjusting the approach to fit each project’s scope and direction. - Integrated LLM and AI APIs for chat, content workflows, and document-related use cases, then handled testing, deployment, and follow-up updates after release. Senior Software Engineer SignaTech Services Private Limited 10/2020 - 07/2022 - Contributed to a healthcare SaaS product with AI integration, building features that supported core healthcare workflows inside the application. - Developed React interfaces and Node.js APIs, keeping new work consistent with the existing product structure and day-to-day usage. - Applied Python to AI modules, NLP tasks, and data processing, then connected those outputs back into the main application. - Maintained REST APIs, database queries, and service integrations, and stayed involved in Docker-based development, CI/CD release work, and updates across staging and production in a Jira-based Agile workflow. Software Engineer Lisuto Japan 06/2017 - 09/2020 - Contributed to a hotel service web application in a 3-member team, working on booking-related features and day-to-day improvements needed to keep the product useful. - Created hotel listings, room detail pages, booking flows, and customer-facing screens, with a focus on clear and practical user experience. - Handled API work, database integration, and frontend changes across the MERN stack, covering both feature delivery and follow-up improvements. - Resolved issues, supported testing, and coordinated with teammates to keep the application stable as new requests and updates were added. Software Engineer BRYCEN 03/2015 - 05/2017 - Supported an education-related ERP web application in a 5-member team, contributing to feature work, system updates, and regular maintenance for internal workflows. - Developed and updated frontend features with JavaScript, React, HTML, and CSS, keeping screens straightforward and usable for daily work. - Helped move parts of the backend from PHP to Node.js during system updates, while keeping existing behavior reliable through the transition. - Contributed to backend logic, bug fixing, testing, and release support, and worked with teammates on the steady flow of fixes and feature requests. Software Engineer Intern 05/2014 - 02/2015 - Built small web projects during the internship, including an ad posting site and a blog site, while learning how work moved from coding into testing and review. - Developed frontend and backend features with HTML, CSS, JavaScript, PHP, and MySQL, including forms and CRUD-style pages for posts and listings. - Fixed small issues, tested updates, and learned coding practices and team workflow from senior developers while building a solid base in web development. Skills ====== - C# - Python - PHP - JavaScript - TypeScript - SQL - Node.js - Express.js - Laravel - CI - FastAPI - Django - Flask - .NET Core - GraphQL - React.js - Next.js - CSS3 - Angular - Vue - OpenAI - LLM - RAG - NLP - AI - ML - DL - Vector Databases - LangChain - Hugging Face - TensorFlow - AWS - Azure - Docker - Linux - Nginx - Git - CI/CD - PostgreSQL - MySQL - MongoDB - Redis - Firebase - Supabase Education ====== Bachelor’s of Computer Science Hokkaido University 04/2010 - 03/2014