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I am a seasoned AI Application Development Engineer with 15 years of hands-on software development and system architecture design, focusing on high-concurrency processing, performance optimization, and building stable, scalable enterprise-level technical solutions. I have extensive experience in building AI-driven knowledge bases, RAG pipelines, and multi-model orchestration using LangChain, LlamaIndex, and BERT-based architectures. In recent years I led end-to-end security, data privacy, and large-model deployment initiatives, including zero-trust architectures, encryption, and secure model integration. I enjoy turning complex requirements into robust, scalable systems and mentoring teams through challenging AI engineering problems, while continuously exploring new AI tools and technologies to keep solutions cutting-edge.…I am a seasoned AI Application Development Engineer with 15 years of hands-on software development and system architecture design, focusing on high-concurrency processing, performance optimization, and building stable, scalable enterprise-level technical solutions. I have extensive experience in building AI-driven knowledge bases, RAG pipelines, and multi-model orchestration using LangChain, LlamaIndex, and BERT-based architectures. In recent years I led end-to-end security, data privacy, and large-model deployment initiatives, including zero-trust architectures, encryption, and secure model integration. I enjoy turning complex requirements into robust, scalable systems and mentoring teams through challenging AI engineering problems, while continuously exploring new AI tools and technologies to keep solutions cutting-edge.

user1540363

AI Engineer, Data Scientist, Full Stack Developer, +2

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I am a seasoned AI Application Development Engineer with 15 years of hands-on software development and system architecture design, focusing on high-concurrency processing, performance optimization, and building stable, scalable enterprise-level technical solutions. I have extensive experience in building AI-driven knowledge bases, RAG pipelines, and multi-model orchestration using LangChain, LlamaIndex, and BERT-based architectures. In recent years I led end-to-end security, data privacy, and large-model deployment initiatives, including zero-trust architectures, encryption, and secure model integration. I enjoy turning complex requirements into robust, scalable systems and mentoring teams through challenging AI engineering problems, while continuously exploring new AI tools and technologies to keep solutions cutting-edge.…I am a seasoned AI Application Development Engineer with 15 years of hands-on software development and system architecture design, focusing on high-concurrency processing, performance optimization, and building stable, scalable enterprise-level technical solutions. I have extensive experience in building AI-driven knowledge bases, RAG pipelines, and multi-model orchestration using LangChain, LlamaIndex, and BERT-based architectures. In recent years I led end-to-end security, data privacy, and large-model deployment initiatives, including zero-trust architectures, encryption, and secure model integration. I enjoy turning complex requirements into robust, scalable systems and mentoring teams through challenging AI engineering problems, while continuously exploring new AI tools and technologies to keep solutions cutting-edge.

Available to hire

I am a seasoned AI Application Development Engineer with 15 years of hands-on software development and system architecture design, focusing on high-concurrency processing, performance optimization, and building stable, scalable enterprise-level technical solutions. I have extensive experience in building AI-driven knowledge bases, RAG pipelines, and multi-model orchestration using LangChain, LlamaIndex, and BERT-based architectures. In recent years I led end-to-end security, data privacy, and large-model deployment initiatives, including zero-trust architectures, encryption, and secure model integration.

I enjoy turning complex requirements into robust, scalable systems and mentoring teams through challenging AI engineering problems, while continuously exploring new AI tools and technologies to keep solutions cutting-edge.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Chinese

Fluent

Work Experience

AI Project Experience at Beijing Zhixiang Technology Co., Ltd.

November 20, 2025 - December 20, 2025

Led an internal AI documentation RAG knowledge-base project, building a knowledge base and intelligent Q&A/document retrieval system for R&D teams using LangChain 1.0 and async pipelines; designed dual-layer prompt optimization and retrieval strategies.

AI Knowledge Base Integration Engineer – LangGraph & Max KB RAG at Beijing Zhixiang Technology Co., Ltd.

July 1, 2024 - June 30, 2025

Designed and implemented enterprise knowledge base integration using LangGraph/LangChain for retrieval-augmented generation. Built cross-node architecture, permissioned access, doc-approval workflows, and microservice deployment with Docker/Kubernetes. Implemented secure document handling and evaluation pipelines for RAG workflows.

Senior AI/ML Engineer – Large Model Content Security Platform at Beijing Zhixiang Technology Co., Ltd.

April 20, 2024 - December 20, 2025

Led development of a large-model content security platform: real-time detection of risk signals such as prompt injection, PII leakage, harmful content, sentiment analysis, and multi-dimension content screening across the end-to-end user request chain. Implemented streaming chunks, Redis caching, and a gated security pipeline with a modern API gateway; deployed with Docker/Kubernetes for enterprise-grade protection.

Large Model Content Security Platform Engineer at Beijing Zhixiang Technology Co., Ltd.

April 1, 2024 - June 1, 2025

Built a large-model content security platform with real-time detection of security risks such as prompt injections and data leakage; implemented sentiment analysis, content safety controls, and end-to-end security across the full user request lifecycle including containerized deployment and integration with customer networks.

Principal System Backend Engineer / Security Architect at Beijing Zhixiang Technology Co., Ltd.

July 20, 2015 - April 20, 2024

Led enterprise-scale security engineering and backend system design. Implemented zero-password storage and secure authentication, AES-256-GCM encryption across transport layers, and a comprehensive security architecture for enterprise AI platforms. Architected retrieval-augmented generation (RAG) pipelines, language-model risk controls, multi-tenant access controls, and continuous security hardening. Built end-to-end knowledge management and documentation workflows integrated with consented document approval, AI-assisted auditing, and Docker/Kubernetes deployment to support scalable, secure enterprise solutions.

Principal System Backend Engineer / Security Architect at Beijing Shenzhen Aerospace Software Technology Co., Ltd.

July 1, 2015 - April 1, 2024

Led system backend engineering and security architecture for enterprise AI platforms. Implemented security practices (zero-trust concepts, encryption, and secure communications) and designed scalable, robust architectures to support AI workloads and large-model deployments.

Embedded Software Development Engineer at Beijing Shenzhen Aerospace Software Technology Co., Ltd.

August 1, 2010 - April 1, 2012

Ported RTOS to new hardware platforms (e.g., SPARC), customized BSP, kernel drivers, and application layer for embedded systems. Contributed to embedded software design, real-time behavior, and hardware/software integration.