You-Ran Nai (Paul)
Summary
Senior Software Engineer with 9+ years bridging modern web platforms, cloud infrastructure, and high-performance C++ applications. Blend product thinking with deep technical ownership to ship reliable systems end to end.
Skills
C++TypeScriptPythonGraphQLMessage QueueNestJSTypeORMPostgreSQLMongoDBAWSReactNode.jsRESTful APIsWebsocketJest
Experiences
Senior Software Engineer
4i Tech - An international company specializing in custom software development
Jun 2023 - Present
- Delivered a business process management suite for media operations with NestJS, GraphQL, and PostgreSQL, introducing role- and claim-based authorization that protects sensitive editorial workflows.
- Architected service-to-service communication via message queues for scalable, reliable workflows.
- Codified AWS infrastructure with CDK, enabling repeatable deployments and scalable environments for new clients.
- Contributed to open-source projects like TypeORM and internal libraries, raising stability across shared services.
Senior Software Engineer
RCAD Inc. - A software company that provides 3D analysis tools for structural engineering
Aug 2020 - Jun 2023
- Engineered a high-performance 3D structural design application in Visual C++ and MFC, implementing SOLID principles to balance extensibility and performance.
- Optimized polygon partition algorithms to achieve superior performance compared to open-source implementations on complex geometric computations.
- Successfully migrated legacy codebases to Unicode and built a suite of integration tests, eliminating regressions in global releases.
Full Stack Engineer
Elements Structure Inc. - A consulting company that specializes in structural engineering
Aug 2019 - Aug 2020
- Launched a full-featured member management platform with React, Redux, WebSocket, and MongoDB, delivering real-time notifications across email and Line.
- Led migration to auto-scaling AWS infrastructure and designed a multi-tenant architecture that isolates client workloads.
- Partnered with NTU Labs to build visual analytics using GCP Vision API and PyTorch, turning research insights into product features.
Full Stack Engineer (Internship)
Elements Structure Inc.
Jun 2016 - Jul 2019
- Co-developed an on-site management system with RCAD Inc. using a NoSQL cloud database and OAuth 2.0, aligning contractor data in real time.
- Optimized steel structure and SRC components with clustering, Newton's method, and slide algorithms to guide fabrication decisions.
- Achieved 400x performance improvement in angle radius calculations, significantly accelerating simulation capabilities for engineering teams.
Education
National Taiwan University
Master's degree, Structural Engineering
2017 - 2019
- Thesis: "Feasibility of Beam Reinforcement Optimization for Practical Application" , focusing on algorithms for structural optimization applied to real-world construction constraints.
National Taiwan University
Bachelor's degree, Civil Engineering
2013 - 2017
- Awarded Gold Medal in CSX 2003 Website Database Programming.
Side Projects
- stretchly-raycast: Built and maintain a Raycast extension in TypeScript that integrates pomodoro techniques into developer workflows.
- js-jsx-snippets: Authored a VSCode extension adopted by 1.2M+ developers, making React and JavaScript scaffolding faster.