Masayuki Tanaka
Verified Expert in Engineering
Full-stack Engineer and Developer
San Francisco, CA, United States
Toptal member since April 15, 2026
Masayuki is a full-stack engineer based in the San Francisco Bay Area with 10+ years of experience building production-grade web, mobile, and AI-integrated applications. He has designed RESTful APIs with complex database systems for game studios, built Go microservices on AWS/Kubernetes for edtech platforms, and shipped generative AI (genAI) applications for enterprise clients. Masayuki will be a great addition to any team.
Portfolio
Experience
- Databases - 15 years
- AWS IoT - 15 years
- PHP - 15 years
- Python - 13 years
- TypeScript - 12 years
- Agile - 10 years
- Google Cloud - 10 years
- Go - 6 years
Work Experience
Senior Solutions Architect
Nomura Research Institute America
- Leveraged large language models (LLMs) to troubleshoot and enhance software functionality using the Amazon Knowledge Base.
- Contributed to a research initiative focused on modernizing and upgrading legacy core systems to improve performance and scalability.
- Developed a manual database solution for construction software, integrating LLMs via Azure OpenAI to streamline data access and management.
Senior Software Engineer
Course Hero
- Played a key role in the growth and evolution of our system that has existed since the 2000s.
- Developed highly functional features across multiple Go microservices and AWS step functions.
- Maintained and optimized a PHP monolith, ensuring smooth operations.
Lead Engineer
Capcom USA
- Drove significant improvements to the day-one system, resulting in outstanding reviews from users and corporate stakeholders.
- Proposed and executed a plan to replace and rebuild the entire back-end system in collaboration with an external vendor.
- Developed robust online-tournament APIs totaling 10,000+ lines of code.
Project History
LazyVlog
https://lazyvlog.beezynx.dev/I developed it using LLM and ffmpeg on Google Cloud. It is designed for anyone who wants to preserve memories without the hassle of complex video editing software.
Youtube Playlist Editor
https://youtube-playlist.site/Manga Layout Creator
https://manga.beezynx.dev/en/Education
Master's Degree in Computer Science
University of Michigan-Dearborn - Michigan, USA
Bachelor's Degree in Public Law
University of Tokyo - Tokyo, Japan
Skills
Libraries/APIs
React, API Development, Node.js, REST APIs, React Redux Form, Stripe, Stripe API
Tools
Claude Code, Jira, Codex, Expo, Claude, ChatGPT, Tableau
Languages
Python, TypeScript, PHP, JavaScript, SQL, Java, Go, Ruby, GraphQL, Python 3
Frameworks
React Native, Flask, Next.js, Redux, Express.js, Spring Boot
Paradigms
Agile, API Architecture, Microservices, Mobile Development, Business Intelligence (BI), Event-driven Architecture
Platforms
AWS IoT, Amazon Web Services (AWS), iOS, MacOS, Vercel, Databricks
Storage
Google Cloud, Databases, PostgreSQL, Redis
Other
Cloud Infrastructure, Software, Software Development, Supabase, APIs, Distributed Software, Distributed Systems, API Design, Workflow Automation & System Integration, Full-stack, System Integration, Payment APIs, Large-scale Distributed Systems, Web Security, Communication, API Gateways, Document Parsing, Artificial Intelligence (AI), Large Language Models (LLMs), LangChain, AI Agents, Airtable, Cursor AI
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