# Ryuji Ganaha

> Software Engineer with 7+ years of experience in Ruby on Rails

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/ryuji

7+ Years of Experience | Software Engineer | Ruby on Rails Specialist | 


• Accomplished Software Engineer with over 7 years of professional experience in developing robust, scalable, and maintainable web applications using Ruby on Rails framework.

• Skilled in leveraging Ruby on Rails' MVC architecture, RESTful APIs, and object-oriented programming principles to build efficient and modular applications.

• Experienced in working with relational databases such as PostgreSQL and MySQL, optimizing queries, and designing efficient database schemas.

• Strong understanding of software development best practices, including version control (Git), test-driven development (TDD), and continuous integration/continuous deployment (CI/CD) pipelines.

• Collaborative team player with excellent communication skills, experienced in working in Agile development environments and participating in code reviews, sprint planning, and retrospectives.

• Proven track record of working effectively with cross-functional teams, including designers, product managers, and QA engineers, to deliver high-quality software solutions that meet business requirements and user needs.

## Work Experience
### Senior Software Engineer @ First
Jan 2024 – Present | San Francisco Bay Area

### Software Engineer @ Everlance
Jan 2022 – Jan 2024 | San Francisco Bay Area
- Improved Trip Tracking Algorithm
Developed a new logic for accurate favorite place matching, eliminating user complaints and reducing customer support workload.

- Social Login Implementation
Led the integration of Google and Apple social logins, enhancing user experience and resolving complex use cases seamlessly.

- SSO Implementation
Implemented SSO by coordinating with clients and the customer success team, ensuring smooth onboarding and client satisfaction.

- Subscription Model Migration
Executed migration of Android users from Stripe to Google Play Store, ensuring a seamless transition and maintaining subscription service integrity.

### Backend Developer @ creww.me
Jan 2020 – Jan 2022 | Tokyo, Japan
- Spearheaded the implementation of a single sign-on function, enabling seamless user migration from a legacy monolithic application to multiple new web applications using Ruby on Rails, HTML5, React, and PostgreSQL.
- Significantly improved codebase maintainability by increasing test coverage from 40% to 80%.
- Reduced automated test duration from 20 minutes to 5 minutes by upgrading the framework from Rails 4 to Rails 5, enhancing development efficiency.

### Co-Founder / Software Engineer @ Survelion
Jan 2019 – Jan 2021 | Within 23 wards, Tokyo, Japan
- Developed and launched an online survey application for small restaurants using Ruby on Rails, HTML5, Vue.js, and MySQL. Managed development, UI design, and subscription management.
- Implemented automated data collection and analysis of survey results, contributing to improved customer satisfaction for client restaurants.
- Onboarded and supported local restaurants, enabling them to leverage the platform for data-driven decision-making and service improvements.
- Integrated the platform with LINE messenger, increasing survey response rates and enhancing user experience.
- Continuously iterated the platform based on client feedback and market needs, ensuring competitiveness and alignment with small restaurant business goals.

### Software Engineer @ Ascender HCM
Jan 2017 – Jan 2020 | Within 23 wards, Tokyo, Japan
- Developed a tax return software that simplifies the complex tax return process by implementing a tax calculation algorithm using Ruby on Rails, HTML5, jQuery, and MySQL.
- Built an employee onboarding system that automated information collection from new hires, reducing the workload of the HR department.
- Mentored new developers, helping them familiarize themselves with the codebase and contributing to their successful integration into the team.


## Education
### Bachelor of Science (BS) in Hospitality and Tourism Management
San Francisco State University
Jan 2012 – Jan 2014

### Web Development Immersive Program
Lighthouse Labs
Jan 2015 – Jan 2015


## Contact & Social
- LinkedIn: https://linkedin.com/in/ryujiganaha

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Source: https://flows.cv/ryuji
JSON Resume: https://flows.cv/ryuji/resume.json
Last updated: 2026-03-22