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Backend engineer with 10+ years designing and delivering scalable web applications, AI-powered products, and enterprise-grade software solutions. Hands-on integration experience with LLMs, RAG systems, and intelligent automation, including leading an initiative that reduced operational costs by 40%. Experienced in distributed systems and blockchain infrastructure (including a private Hyperledger Fabric network that reduced security risks by 93%). Strong focus on transforming complex requirements into measurable outcomes, owning projects end-to-end from architecture through deployment, and providing technical leadership across small teams.…Backend engineer with 10+ years designing and delivering scalable web applications, AI-powered products, and enterprise-grade software solutions. Hands-on integration experience with LLMs, RAG systems, and intelligent automation, including leading an initiative that reduced operational costs by 40%. Experienced in distributed systems and blockchain infrastructure (including a private Hyperledger Fabric network that reduced security risks by 93%). Strong focus on transforming complex requirements into measurable outcomes, owning projects end-to-end from architecture through deployment, and providing technical leadership across small teams.

user1694890

Full Stack Developer, Back-End Developer, AI Engineer, +5

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Backend engineer with 10+ years designing and delivering scalable web applications, AI-powered products, and enterprise-grade software solutions. Hands-on integration experience with LLMs, RAG systems, and intelligent automation, including leading an initiative that reduced operational costs by 40%. Experienced in distributed systems and blockchain infrastructure (including a private Hyperledger Fabric network that reduced security risks by 93%). Strong focus on transforming complex requirements into measurable outcomes, owning projects end-to-end from architecture through deployment, and providing technical leadership across small teams.…Backend engineer with 10+ years designing and delivering scalable web applications, AI-powered products, and enterprise-grade software solutions. Hands-on integration experience with LLMs, RAG systems, and intelligent automation, including leading an initiative that reduced operational costs by 40%. Experienced in distributed systems and blockchain infrastructure (including a private Hyperledger Fabric network that reduced security risks by 93%). Strong focus on transforming complex requirements into measurable outcomes, owning projects end-to-end from architecture through deployment, and providing technical leadership across small teams.

Available to hire

Backend engineer with 10+ years designing and delivering scalable web applications, AI-powered products, and enterprise-grade software solutions. Hands-on integration experience with LLMs, RAG systems, and intelligent automation, including leading an initiative that reduced operational costs by 40%.

Experienced in distributed systems and blockchain infrastructure (including a private Hyperledger Fabric network that reduced security risks by 93%). Strong focus on transforming complex requirements into measurable outcomes, owning projects end-to-end from architecture through deployment, and providing technical leadership across small teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Japanese

Fluent

Work Experience

Senior Software Development Engineer (AI / Blockchain) at Everest Green

April 2, 2025 - Present

Designed and implemented AI-driven automation systems for supply chain workflows, reducing operational costs through intelligent data processing and decision pipelines.

Senior Software Engineer, AI Engineer at Nekologic

April 1, 2023 - May 1, 2026

Architected and shipped an AI scheduling assistant that automates manual clinic scheduling by combining LLM-based intent extraction with deterministic constraint logic, deployed across multiple healthcare organizations. Built and deployed a production-grade RAG system for enterprise document ingestion, semantic search, and answer grounding for healthcare data. Accelerated delivery by integrating AI coding agents and LLM-based PR automation into the CI pipeline. Led a team of 4 engineers, owned the technical roadmap and engineering standards, and drove the project from initial pilot to multi-organization production deployment.

Senior Software Development Engineer (Contract) at Grease Co., Ltd.

January 1, 2022 - March 1, 2025

Designed and implemented backend systems for logistics and export inspection workflows, improving processing efficiency and reliability. Built high-performance data processing modules (C++ and Python) for large-scale datasets. Architected and deployed AWS-based infrastructure for scalability and cost efficiency. Integrated LLM-based workflows to automate decisions and optimize operations.

Senior Software Engineer at OBIC Co, Ltd

January 1, 2020 - March 1, 2023

Cut first-page load times by 85% (1.4s to 0.2s), improving user retention and conversion. Shipped 5 high-impact projects to production while coordinating 3 cross-functional remote teams across global time zones. Promoted 5 engineers from junior to senior by mentoring and establishing a high-performance engineering culture.

Front-End Developer at Human Resocia Co., Ltd.

March 1, 2019 - July 1, 2022

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. Built responsive web applications using React, modern JavaScript frameworks, and component-based architecture.

Back-End Developer at Lych ee G.K.

March 1, 2016 - July 1, 2020

Developed a real estate platform serving 3,600 users with dynamic search and responsive UI. Improved web performance by 75% through front-end optimization and efficient architectural design. Built responsive web applications using React and modern JavaScript frameworks with a component-based architecture.

Backend Developer at Lychée G.K.

March 1, 2016 - July 1, 2020

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 architectural design. Built responsive web applications using React and modern JavaScript frameworks with a component-based architecture.

Education

Master of Science at The University of Tokyo

January 11, 2030 - May 31, 2026

M.S in Computer Science & Engineering at Nagoya University

April 1, 2012 - October 1, 2016

M.S in Computer Science & Engineering at Nagoya University

April 1, 2012 - October 1, 2016

M.S in Computer Science & Engineering at Nagoya University

April 1, 2012 - October 1, 2016

Qualifications

Bachelor of Computer Science

January 11, 2030 - July 21, 2026

Bachelor of Computer Science

January 11, 2030 - July 21, 2026

Industry Experience

Software & Internet, Professional Services, Media & Entertainment, Healthcare, Real Estate & Construction, Computers & Electronics, Financial Services