Daniel Lin

Daniel Lin

Los Angeles, United States

Daniel Lin

AI & Full-Stack Developer | Python, React, LLM
๐Ÿš€ ๐€๐ง๐ฒ๐จ๐ง๐ž ๐œ๐š๐ง ๐œ๐จ๐๐ž. ๐๐จ๐ญ ๐ž๐ฏ๐ž๐ซ๐ฒ๐จ๐ง๐ž ๐œ๐š๐ง ๐ฌ๐ก๐ข๐ฉ, ๐ฆ๐š๐ข๐ง๐ญ๐š๐ข๐ง, ๐š๐ง๐ ๐ฌ๐œ๐š๐ฅ๐ž ๐ซ๐ž๐š๐ฅ ๐ฉ๐ซ๐จ๐๐ฎ๐œ๐ญ๐ฌ. ๐ˆ ๐œ๐š๐ง. ๐Ÿš€

๐Ÿ† 8+ years of experience
๐Ÿ”ฅ 50+ successfully delivered projects
โญ Trusted by startups and growing teams

Hi, Iโ€™m Daniel๐Ÿ‘‹ Senior AI & Full-Stack Engineer | Node.js | Python | FastAPI | React | LLM | RAG | SaaS Architect

I help startups and growing teams build AI-powered SaaS platforms, scalable backend systems, and production-ready web applications.

With 8+ years of experience, I specialize in designing clean architectures, building high-performance APIs, and integrating intelligent AI systems that work reliably in real production environments not just demos.

If you're building:
โ€ข An AI-powered SaaS product
โ€ข A scalable backend platform
โ€ข An LLM / RAG-based system
โ€ข A multi-tenant SaaS architecture
โ€ข Or a modern web application with real business logic

I can help you design and deliver it the right way.

๐Ÿš€ What I Specialize In
โ€ข AI Systems & LLM Integration
โ€ข LLM integrations (OpenAI, Claude, custom models)
โ€ข RAG pipelines with vector databases
โ€ข AI agents & multi-agent workflows
โ€ข Document processing & knowledge systems
โ€ข AI workflow automation
โ€ข Semantic search & embeddings
โ€ข AI-powered SaaS features

I build AI systems that are structured, scalable, and production-ready.

๐Ÿ— Backend Architecture & APIs
โ€ข Node.js & Python (FastAPI, Django)
โ€ข REST & GraphQL APIs
โ€ข Modular monolith & microservices
โ€ข Multi-tenant SaaS architecture
โ€ข Authentication, RBAC, audit logs
โ€ข Payment integrations
โ€ข High-performance database design

I focus on clean architecture, maintainable code, and long-term scalability.

๐ŸŒ Full-Stack Development
โ€ข React & Next.js (TypeScript)
โ€ข Dashboard systems
โ€ข Admin panels
โ€ข SaaS interfaces
โ€ข Real-time features
โ€ข API-driven frontends

I build clean, responsive, and business-focused interfaces.

โ˜ Cloud & DevOps
โ€ข AWS, GCP, Azure
โ€ข Docker & containerized deployments
โ€ข CI/CD pipelines
โ€ข Performance optimization
โ€ข Scalable infrastructure design

๐Ÿ† Project Experience

โ€ข Built AI-powered SaaS platforms integrating LLM-based automation for legal, HR, and sales workflows.
โ€ข Designed scalable FastAPI and Node.js backends powering production systems with complex business logic.
โ€ข Implemented RAG-based knowledge platforms using vector databases for intelligent search and AI assistants.
โ€ข Developed AI-driven personalization and recommendation engines.
โ€ข Delivered enterprise-grade APIs handling high traffic and secure data processing.
โ€ข Built multi-agent AI workflows for automation and intelligent orchestration.
โ€ข Created scalable SaaS dashboards and full-stack web platforms used by growing startups.

๐Ÿง  Industries Served
=====================
AI & SaaS | FinTech | LegalTech | Healthcare | HR Tech | EdTech | Marketplaces | Enterprise Platforms | Logistics | Automation Platforms

๐Ÿ’ฌ What Clients Say
=====================
"Daniel was dedicated to providing timely and complete solutions. His communication was regular, he was able to meet deadlines, and he has a broad range of technical skills. I enjoyed working with him and plan to continue doing so in the future."

If you're building an AI product, SaaS platform, or scalable backend system - let's connect.

Iโ€™m happy to review your idea, suggest the right architecture, and help you move from concept to production confidently.

Working hours

  • Monday:08h00 To 18h00
  • Tuesday:08h00 To 18h00
  • Wednesday:08h00 To 18h00
  • Thursday:08h00 To 18h00
  • Friday:08h00 To 18h00
  • Saturday:Not available
  • Sunday:Not available
  • ๐Ÿ‡ฌ๐Ÿ‡ง English
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