Yuji Ueki

Full-stack Software Engineer

About

A full-stack software engineer with experience leading product development from planning to operation at multiple startups. My expertise covers backend APIs, web frontends, iOS/Android mobile apps, and cloud infrastructure (AWS/GCP, IaC). I also have experience in improving development processes, leveraging data, and leading projects.

Skills

Languages: Ruby, Python, Swift, Kotlin, TypeScript, JavaScript, Scala, Java, PHP, C++
Frameworks: Ruby on Rails, NestJS, Hanami, React, Next.js, Cycle.js, React Native
Cloud & Infra: AWS, GCP, Terraform, Docker
Databases: MySQL, Redis, PostgreSQL
CI/CD: CircleCI, Jenkins

OSS Activities

I am passionate about open source and actively develop and contribute to various projects on GitHub.

Philosophy

Contribution to Company

Full commitment to the business as a full-time employee or executive, rather than as a side job or contractor.

Expectations for Organization/Team

Emphasis on data-driven decision making. Ideal environment is one where information is transparently available based on statistical concepts.
A flat and autonomous organization. An environment where everyone proactively shares team management responsibilities.
A small team of excellent members. Members who are highly motivated to acquire skills and knowledge regardless of their job title.

Way of Working

Emphasis on asynchronous and flexible work styles. An environment that is not bound by time or place. Contributing by choosing tasks at my own discretion, like an Individual Contributor.

Stance on Products/Technology

Pursuing both social contribution and business growth. Emphasis on product development where the team works as one towards clear long-term goals.
Utilizing pure, small functions through functional programming (especially monads). Pursuing clean, well-modeled, and refactored code.
Contributing to the community through the release of and contributions to OSS.