Maizi L.

I am a senior software engineer with a Master's in Computer Engineering from the University of Waterloo and several years of experience building production systems for companies including Huawei, Sumo Logic, and Rakuten. I help businesses build reliable web applications, scalable backend systems, cloud infrastructure, and AI powered automation tools. My work covers the full development cycle, from architecture and database design to API development, frontend implementation, deployment, and long term maintenance. What I can build for you: Full Stack Web Applications Modern web apps using React, TypeScript, Node.js, Python, Go, PostgreSQL, MongoDB, and cloud based deployment. AI Agents and LLM Integrations Custom AI assistants, RAG pipelines, OpenAI and Anthropic API integrations, prompt workflows, document automation, and AI features inside existing products. Workflow and Business Automation Automation for repetitive business tasks, internal tools, data workflows, SaaS integrations, scraping, scheduled jobs, reporting, and AI assisted operations. Backend and API Development REST APIs, GraphQL APIs, authentication, role based access, database design, microservices, background jobs, and performance optimization. Cloud Infrastructure and DevOps AWS, GCP, Docker, Kubernetes, CI/CD pipelines, server setup, monitoring, deployment automation, and Infrastructure as Code. High Performance Engineering Performance critical services, distributed systems, and backend components using Go, Rust, C, and C++ when speed and reliability matter. Core technologies: Python, TypeScript, JavaScript, Go, Rust, C/C++, SQL React, Node.js, FastAPI, Django, REST, GraphQL PostgreSQL, MySQL, MongoDB, Redis OpenAI API, Anthropic API, RAG, AI agents, LLM workflows AWS, GCP, Docker, Kubernetes, Terraform, GitHub Actions Why clients work with me: I write clean, maintainable, production ready code I communicate clearly and give regular progress updates I can own a project end to end or join an existing engineering team I focus on solving the business problem, not just writing code I care about reliability, scalability, and long term maintainability Whether you need an MVP, backend system, AI automation tool, cloud deployment, or a full product build, I can help you design it properly and ship it with confidence. Send me a message and I will be happy to discuss your project.