
Daniel Lin
Los Angeles, United States
Daniel Lin
AI & Full-Stack Developer | Python, React, LLM
Category : Artificial intelligence (AI)
๐ ๐๐ง๐ฒ๐จ๐ง๐ ๐๐๐ง ๐๐จ๐๐. ๐๐จ๐ญ ๐๐ฏ๐๐ซ๐ฒ๐จ๐ง๐ ๐๐๐ง ๐ฌ๐ก๐ข๐ฉ, ๐ฆ๐๐ข๐ง๐ญ๐๐ข๐ง, ๐๐ง๐ ๐ฌ๐๐๐ฅ๐ ๐ซ๐๐๐ฅ ๐ฉ๐ซ๐จ๐๐ฎ๐๐ญ๐ฌ. ๐ ๐๐๐ง. ๐
๐ 8+ years of experience
๐ฅ 50+ successfully delivered projects
โญ Trusted by startups and growing teams
Hi, Iโm Daniel๐ 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:
โข An AI-powered SaaS product
โข A scalable backend platform
โข An LLM / RAG-based system
โข A multi-tenant SaaS architecture
โข Or a modern web application with real business logic
I can help you design and deliver it the right way.
๐ What I Specialize In
โข AI Systems & LLM Integration
โข LLM integrations (OpenAI, Claude, custom models)
โข RAG pipelines with vector databases
โข AI agents & multi-agent workflows
โข Document processing & knowledge systems
โข AI workflow automation
โข Semantic search & embeddings
โข AI-powered SaaS features
I build AI systems that are structured, scalable, and production-ready.
๐ Backend Architecture & APIs
โข Node.js & Python (FastAPI, Django)
โข REST & GraphQL APIs
โข Modular monolith & microservices
โข Multi-tenant SaaS architecture
โข Authentication, RBAC, audit logs
โข Payment integrations
โข High-performance database design
I focus on clean architecture, maintainable code, and long-term scalability.
๐ Full-Stack Development
โข React & Next.js (TypeScript)
โข Dashboard systems
โข Admin panels
โข SaaS interfaces
โข Real-time features
โข API-driven frontends
I build clean, responsive, and business-focused interfaces.
โ Cloud & DevOps
โข AWS, GCP, Azure
โข Docker & containerized deployments
โข CI/CD pipelines
โข Performance optimization
โข Scalable infrastructure design
๐ Project Experience
โข Built AI-powered SaaS platforms integrating LLM-based automation for legal, HR, and sales workflows.
โข Designed scalable FastAPI and Node.js backends powering production systems with complex business logic.
โข Implemented RAG-based knowledge platforms using vector databases for intelligent search and AI assistants.
โข Developed AI-driven personalization and recommendation engines.
โข Delivered enterprise-grade APIs handling high traffic and secure data processing.
โข Built multi-agent AI workflows for automation and intelligent orchestration.
โข Created scalable SaaS dashboards and full-stack web platforms used by growing startups.
๐ง Industries Served
=====================
AI & SaaS | FinTech | LegalTech | Healthcare | HR Tech | EdTech | Marketplaces | Enterprise Platforms | Logistics | Automation Platforms
๐ฌ 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.
Iโm happy to review your idea, suggest the right architecture, and help you move from concept to production confidently.
๐ 8+ years of experience
๐ฅ 50+ successfully delivered projects
โญ Trusted by startups and growing teams
Hi, Iโm Daniel๐ 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:
โข An AI-powered SaaS product
โข A scalable backend platform
โข An LLM / RAG-based system
โข A multi-tenant SaaS architecture
โข Or a modern web application with real business logic
I can help you design and deliver it the right way.
๐ What I Specialize In
โข AI Systems & LLM Integration
โข LLM integrations (OpenAI, Claude, custom models)
โข RAG pipelines with vector databases
โข AI agents & multi-agent workflows
โข Document processing & knowledge systems
โข AI workflow automation
โข Semantic search & embeddings
โข AI-powered SaaS features
I build AI systems that are structured, scalable, and production-ready.
๐ Backend Architecture & APIs
โข Node.js & Python (FastAPI, Django)
โข REST & GraphQL APIs
โข Modular monolith & microservices
โข Multi-tenant SaaS architecture
โข Authentication, RBAC, audit logs
โข Payment integrations
โข High-performance database design
I focus on clean architecture, maintainable code, and long-term scalability.
๐ Full-Stack Development
โข React & Next.js (TypeScript)
โข Dashboard systems
โข Admin panels
โข SaaS interfaces
โข Real-time features
โข API-driven frontends
I build clean, responsive, and business-focused interfaces.
โ Cloud & DevOps
โข AWS, GCP, Azure
โข Docker & containerized deployments
โข CI/CD pipelines
โข Performance optimization
โข Scalable infrastructure design
๐ Project Experience
โข Built AI-powered SaaS platforms integrating LLM-based automation for legal, HR, and sales workflows.
โข Designed scalable FastAPI and Node.js backends powering production systems with complex business logic.
โข Implemented RAG-based knowledge platforms using vector databases for intelligent search and AI assistants.
โข Developed AI-driven personalization and recommendation engines.
โข Delivered enterprise-grade APIs handling high traffic and secure data processing.
โข Built multi-agent AI workflows for automation and intelligent orchestration.
โข Created scalable SaaS dashboards and full-stack web platforms used by growing startups.
๐ง Industries Served
=====================
AI & SaaS | FinTech | LegalTech | Healthcare | HR Tech | EdTech | Marketplaces | Enterprise Platforms | Logistics | Automation Platforms
๐ฌ 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.
Iโm 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
- ๐ฌ๐ง English
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