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I’m a product-focused software engineer building full-stack and AI agent workflows for large-scale creator and data platforms. I enjoy designing secure, tool-augmented LLM systems (MCP/LangGraph), integrating real-time services, and shipping measurable growth improvements. I specialize in orchestrating backend services and agent pipelines end-to-end—RAG grounding, human-in-the-loop execution, analytics, and automation—while collaborating on product experiences that help users create, publish, and iterate faster.…I’m a product-focused software engineer building full-stack and AI agent workflows for large-scale creator and data platforms. I enjoy designing secure, tool-augmented LLM systems (MCP/LangGraph), integrating real-time services, and shipping measurable growth improvements. I specialize in orchestrating backend services and agent pipelines end-to-end—RAG grounding, human-in-the-loop execution, analytics, and automation—while collaborating on product experiences that help users create, publish, and iterate faster.

HAOZHENG LIANG

Software Engineer, Programmer, AI Developer, +3

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I’m a product-focused software engineer building full-stack and AI agent workflows for large-scale creator and data platforms. I enjoy designing secure, tool-augmented LLM systems (MCP/LangGraph), integrating real-time services, and shipping measurable growth improvements. I specialize in orchestrating backend services and agent pipelines end-to-end—RAG grounding, human-in-the-loop execution, analytics, and automation—while collaborating on product experiences that help users create, publish, and iterate faster.…I’m a product-focused software engineer building full-stack and AI agent workflows for large-scale creator and data platforms. I enjoy designing secure, tool-augmented LLM systems (MCP/LangGraph), integrating real-time services, and shipping measurable growth improvements. I specialize in orchestrating backend services and agent pipelines end-to-end—RAG grounding, human-in-the-loop execution, analytics, and automation—while collaborating on product experiences that help users create, publish, and iterate faster.

Available to hire

I’m a product-focused software engineer building full-stack and AI agent workflows for large-scale creator and data platforms. I enjoy designing secure, tool-augmented LLM systems (MCP/LangGraph), integrating real-time services, and shipping measurable growth improvements.

I specialize in orchestrating backend services and agent pipelines end-to-end—RAG grounding, human-in-the-loop execution, analytics, and automation—while collaborating on product experiences that help users create, publish, and iterate faster.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Language

English

Advanced

Chinese

Advanced

Aragonese

Advanced

Javanese

Advanced

Work Experience

Software Engineer – TikTok Effect Platform (Product Engineer, Effect House Platform) at TikTok

November 1, 2023 - Present

Built and shipped LLM Copilot infrastructure and agent workflows for TikTok Effect House. Architected a standalone MCP server (Node.js) to orchestrate tool execution across multiple MCP tools for AI-assisted effect creation, including an MCP RAG tool grounded with OpenAI embeddings and vector search over learning-resource docs. Built an asset lookup MCP tool using Node.js and REST APIs for real-time asset discovery within agent flows. Engineered a LangGraph multi-turn agent with human-in-the-loop confirmations to improve execution accuracy and user trust. Integrated Seedance 2.0 into creator workflows to boost publishing. Also created internal MCP servers (Node.js/Go) for secure operations via OAuth 2.0 Device Authorization Flow and for data/tool access from pipelines, enabling automated trend summarization/report generation and configuration of inspirations using MCP + LangGraph + LLMs. Delivered full-stack analytics and leaderboard systems with Go and React for low-latency insights a

Software Engineer – TikTok Effect Platform (Product Engineer) at TikTok

November 1, 2023 - Present

Product Engineer for TikTok Effect House Platform: built AI agent workflows and full-stack, creator-facing experiences. Designed and implemented a standalone MCP server (Node.js) powering an LLM Copilot with multi-tool orchestration; built RAG and asset-lookup MCP tools for context-aware effect guidance and real-time asset discovery. Engineered a LangGraph multi-turn agent with human-in-the-loop confirmation to improve action accuracy. Integrated Seedance 2.0 into the AI Style Editor workflow to improve publishing. Enhanced user submission quality via prompt engineering and product integrations. Built internal MCP servers for secure operations authentication using OAuth 2.0 Device Authorization Flow and for exposing crawled web/video pipeline data as agent tools. Implemented trend summarization, automated report generation, and inspiration configuration using Go + MCP + LLM, improving efficiency substantially. Developed operational automation pipelines with atomic skills and LangGraph

Software Engineer / Product Engineer (AI Agent Workflows & Full-Stack Platform) at TikTok

November 1, 2023 - Present

Built and operated AI agent workflows for the TikTok Effect House platform, including a standalone MCP server (Node.js) for LLM Copilot tool orchestration, enabling AI-assisted effect creation and improving user advancement by 10%. Implemented MCP tools for RAG grounded guidance using OpenAI embeddings and a vector database, plus an asset lookup MCP tool for real-time effect asset discovery via REST APIs. Engineered a LangGraph multi-turn agent with human-in-the-loop confirmation to improve action accuracy and creator confidence. Integrated Seedance 2.0 into the AI Style Editor workflow to improve publishing by 3%, and improved submission performance by 10% through prompt engineering and product integrations. Developed internal MCP services secured with OAuth 2.0 Device Authorization Flow and built data MCP tools (Go) to expose crawled web/video pipeline data for agent consumption. Implemented trend summarization, report generation, and auto-configuration of inspiration to improve effi

Full Stack Software Engineer Intern at Pendulum Startup

September 1, 2023 - November 1, 2023

Reengineered backend API queries by migrating from MongoDB to AWS Redshift SQL, improving request times by 100%. Created Python API interfaces for a generative AI design feature to generate designs for users. Initiated Jest unit testing to raise frontend/backend test coverage from 0% to 60%.

Full Stack Software Engineer Intern at Achord Startup

June 1, 2023 - August 31, 2023

Built backend services (Node.js) for real-time messaging and scheduling for a virtual music class education platform. Integrated Stripe API for subscription management, improving subscription efficiency by 40%. Designed RESTful APIs handling scheduling, messaging, and payment functionalities.