Co-founder / Chief Technology Officer
Co-founded Reopt AI and leads its technical direction, applying zero-to-scale company-building experience to new AI agent product and platform challenges.
Subject Overview
- Public Name
- Eric Han
- Classification
- Technology leader and product-minded engineering operator.
- Public Record Summary
- Public materials identify Eric Han as a technical leader focused on AI agent services, SaaS products, cloud infrastructure, API platforms, and engineering organizations built to deliver under real product pressure. His work centers on turning ambiguous problems and blank-slate situations into shipped products, operating teams, and durable technical systems.
Employment Record
E4
E3
Co-founder / Chief Technology Officer / Technical Lead
As co-founder, designed and built tax and accounting SaaS products and the organization behind them from the ground up, reaching 3,000,000 cumulative registered customers and KRW 35.5B in cumulative investment while leading 30+ specialized team members, including technical hiring and evaluation.
E2
2014 - 2015A2 Company
Researcher
Developed a metrics monitoring system for OpenStack operations, covering infrastructure signals, data collection, and operational visibility, and contributed frontend engineering to a contracted project for an LG Electronics cloud service.
E1
2013Daum Communications, DNA Team
Development Intern
Supported developer-focused conference operations and developed Open API management tools before Daum merged with Kakao.
Public Work and Technical Activity
A1
Professional knowledge handbook
Publishes and continuously updates a public handbook of specialist knowledge and working references.
A2
AI agent architecture notes
Shares technical material on AI agent design, system structure, and applied architecture decisions.
A3
Former AWS Community Builder
Past AWS community activity included participation in the AWSUG Architecture Group and technical sessions on AWS for Startups, AWS X-Ray, AWS Fargate, and AWS Amplify.
A4
Conference speaker
Presented technical sessions at public developer events including AWS DevDay, Playnode, TypeScript Korea, and IBM DeveloperConnect, covering cloud architecture, monorepos, TypeScript, and engineering culture.
A5
Academic Research
Graduated with a Bachelor of Engineering in Computer Science and completed academic work on ontology and GraphDB topics.
A6
Web development community work
Led a UX/UI meetup group, ran a web standards study group, and stayed active in practical web development communities.
Technical Findings
This archive-report presentation organizes a first-party professional profile into recurring technical patterns. It is a design format, not a leak, investigation, or risk assessment.
F1
Zero-to-scale execution
Turns ambiguous product and technical problems into shipped products, operating teams, and repeatable delivery systems, carrying work from early discovery through scale.
F2
SaaS and platform architecture
Designs, develops, and operates SaaS and platform systems across cloud infrastructure, monitoring, tax and accounting products, and AI agent services.
F3
Broad product and systems execution
Has worked across mobile programming, web application development, cloud infrastructure design, and marketing data analysis while taking on the practical technical and business work required to grow a new company.
F4
Enterprise collaboration and SaaS integration
Led direct collaboration, product integration, technical development, and delivery management with major enterprise partners including NAVER Finance, Lotte Card, KakaoBank, and Kbank, while also implementing and integrating major SaaS platforms such as AWS, Okta, Datadog, Mixpanel, and Braze.
F5
Engineering leadership and communication
Communicates across product, business, design, and engineering teams while managing engineering operations, evaluating technical-role interview candidates, and building teams capable of shipping under pressure.