Lenscoder · 韩旭
我负责 C++ 高频股票交易系统、盘中多账户风控，以及基于本地部署模型的内部 Agent 平台开发。工作之余喜欢做一些开源小工具，平时也喜欢徒步和摄影。
开源项目
23
GitHub
工作方向
C++ · AI
交易系统 / 风控 / Agent
摄影站
lenscoder.cn
Light, distance and moments.
01 / PROJECT
面向 Windows 的内存级大日志查看器，将数 GB 文件整体载入内存，结合 SIMD 字节级并行检索与虚拟化渲染实现快速浏览。
独立 GUI · Notepad++ 插件 · CLI · MCP 共用同一引擎
针对常规文本编辑器打开数 GB 日志易卡顿的问题，采用全内存加载、字节级 SIMD 并行匹配和虚拟化 UI 列表渲染，并同时提供桌面端多标签 GUI、Notepad++ 插件、CLI 命令行和面向 AI 客户端的 MCP 服务。
基于 FastAPI 与 WebSocket 的多人实时德州扑克现金局系统，支持 CSPRNG 洗牌、多重边池清算、断线重连与战局结算。
WebSocket 状态同步 · 多重边池计算 · Show/Muck 与全套音效
按照标准现金局规则实现完整后台牌局状态机与前端交互界面，涵盖密码学安全洗牌、高精度 7 选 5 牌型评估、多人 All-in 主边池分配、最小加注规则校验以及战局自动债权结算。
面向 HPoker 的本地德州扑克 AI 控制台，接入支持工具调用的大模型接口，管理打法画像、牌桌聊天与决策追踪记忆。
打法画像配置 · 牌桌对话与复盘 · 全链路决策理由可溯源
通过 OpenAI 兼容的工具调用接口驱动多个 AI Agent 同桌博弈，为每个 Agent 维护 SQLite 持久化对手记忆与打法画像，并在控制台实时展示工具调用轨迹、思考过程与 Token 统计。
在 Kindle Paperwhite 3 上用原生 C++17 取数、排版与光栅绘制的电子墨水屏看板，集成了天气、行情、日出云图、新闻与 Agent 用量。
原生 C++17 无浏览器渲染 · 8-bit 灰度分时图 · 桌面离线预览器
面向 Kindle Paperwhite 3 的 8-bit 灰度墨水屏硬件特点，使用原生 C++17 直接抓取数据并完成灰度像素排版与图表绘制，省去重型浏览器开销，同时自带桌面端离线模拟器方便本地调试。
可自托管的家庭宠物监控与活动记录系统：FFmpeg 接入摄像头视频流，在双栏时间线上分别记录猫狗活动并在复核后推送 Bark 提醒。
猫狗双栏时间线 · FFmpeg 分段切片 · 截图复核与 5 分钟合并 Bark 推送
基于 FastAPI 与 SQLite 搭建，后台通过 FFmpeg 持续采集 RTSP/HTTP 摄像头画面并分段识别猫和狗的睡眠、进食、喝水、玩耍与异常行为；候选项经截图复核确认后按时间窗合并推送至 Bark。
自托管徒步路线与记录库，支持导入 GPX/GeoJSON、在 3D 卫星地形上回放轨迹，并同步联动海拔心率曲线与沿途照片。
天地图卫星 + 3D 高程回放 · 兼容 HEIC 与 Apple Live Photo · iPhone 快捷指令同步
使用 Python 标准库、SQLite 与原生 JS / MapLibre GL JS 搭建（无需前端构建流程），集成卫星影像与高程地形实现轨迹 3D 回放，根据拍摄时间自动把服务器或相册里的照片锚定回地理轨迹上。
基于局域网的 Windows 10/11 远控 Web 应用，无需安装客户端即可在手机或平板浏览器中获得实时画面、触控板与快捷键控制。
H.264 / NVENC 采集 + WebCodecs 浏览器硬解 · 支持 PWA 与多屏幕切换
通过 Python 在 Windows 端实现桌面采集与 H.264 / NVENC 低延迟视频编码，手机端直接在浏览器中使用 WebCodecs 硬件解码实时桌面流，兼作高精度无线触控板、软键盘及媒体快捷键遥控器。
基于生产级多智能体运行日志的实证研究与 56 页论文工程：量化分析四个 Agent 在处理 43,870 份估值表期间自发涌现的工作语言演化规律。
连续 8 天 · 123 产品 · 2,202 会话 · 116,131 次工具调用 · 96.4B Token
将一套生产多智能体系统的脱敏运行记录（覆盖 8 天、110,413 条消息与 96.4 亿累计输入 Token，主会话仅 1 条人类输入）作为语料，分析 Agent 在窄带通信约束下如何演化出共享词汇、角色语域与行为收敛规律。
02 / WORK
杭州某量化私募 · 杭州
C++ 高频交易系统
负责股票高频交易系统核心模块开发与性能优化。
盘中多账户监控
实现全账户统一盘中监控系统，采用模板化规则结构方便快速新增风控规则，避免触发交易所风控限制。
盘中事后风控展示
对接股票交易系统实时输出与行情数据流，向交易员直观展示持仓与风险暴露信息。
本地大模型与内部 Agent
本地部署 DeepSeek、Qwen 等模型，研发按细粒度权限接入股票期货、内部产品、估值表、销售与风控数据的内部 Agent。
0 人工介入估值核验 Agent
实现全产品全日期估值表自动解析，结合 MainAgent、SubAgent 与 Watchdog 机制自动生成核对规则并完成核验。
杭州某投资机构 · 杭州
全市场量化回测平台
负责支持 A 股、港股、美股、期货及期权分钟级回测的后端研发；通过 PostgreSQL UNLOGGED 表与连接池优化写入，结合 SignalR 实时推送、QLNet 期权定价及 C++/CLI 封装 CTP 接口。
18 模块资管 ERP
设计动态实体与全字段事件序列支持无代码字段扩展，实现 Office 转 PDF、自动骑缝章以及基于业务规则的字段级细粒度权限管控。
基金报表系统
整合多路期货与股票行情数据源，通过多层缓存将净值计算刷新缩短至 5 秒以内，配置健康检查与熔断降级机制，并接入大模型自动汇总券商研报。
早期实习经历
上海某企业软件公司 · 上海
定制开发企业 OA 采购单、入库单与发票三单自动匹配功能，对接流程引擎实现审批流转自动化。
杭州某科技公司 · 杭州
参与零售智能客服定制集成，对接会员及优惠券中台接口，实现订单查询与退换货自动应答。
03 / TECH
[01 / 核心语言]
[02 / 服务端与交互]
[03 / 数据与运维]
[04 / AI 与硬件]
04 / ABOUT
软件工程（本科）· 校 ACM 集训队
写代码之外，我比较喜欢户外徒步和摄影，平时拍下的星空、霞光与山川照片都会整理放在个人摄影站 lenscoder.cn。平时也会结合日常需求写一些开源项目，比如在地图上回放 GPX 徒步轨迹、用 Kindle Paperwhite 3 做桌面墨水屏看板、手机无线控制 Windows 桌面，以及查看家中一猫一狗的活动记录。
Lenscoder · Xu Han
My work focuses on C++ high-frequency equities trading systems, intraday multi-account risk platforms, and internal local LLM agent pipelines. Outside of work, I build open-source tools, hike trails, and shoot photography.
Open Source
23
GitHub
Core Focus
C++ · AI
Trading / Risk / Agents
Photography
lenscoder.cn
Light, distance and moments.
01 / PROJECT
A Windows in-memory viewer for multi-gigabyte logs powered by byte-level SIMD parallel search and virtualized rendering.
Shared engine powering GUI, Notepad++ plugin, CLI & MCP server
Designed to open and search multi-GB log files without editor lag—combining full in-memory indexing, multi-core SIMD byte scanning, and virtualized rendering across a standalone GUI, Notepad++ plugin, CLI, and MCP service.
Real-time multiplayer Texas Hold'em cash-game platform with CSPRNG shuffling, multi-way side pots, reconnects, and automatic debt settlement.
WebSocket sync · Side-pot engine · Show/Muck & full sound effects
Implements complete Hold'em cash-game rules with FastAPI and WebSockets—covering cryptographic shuffling, exact 7-card hand evaluation, multi-way side-pot distribution, min-raise enforcement, and automated session settlement.
A local AI poker console for HPoker—connecting tool-calling LLMs with persistent player memory, strategy profiles, and reasoning traces.
Strategy personas · Opponent memory · Auditable tool-call traces
Connects tool-calling LLMs to HPoker tables through a local FastAPI dashboard—maintaining SQLite opponent profiles, hand reflections, table chat, and full step-by-step decision telemetry.
A native C++17 dashboard that fetches, lays out, and renders markets, weather, sunset clouds, news, and agent quotas onto a Kindle Paperwhite 3.
Native C++17 rendering · 8-bit grayscale charts · Desktop simulator
Written in native C++17 specifically for the Kindle Paperwhite 3 8-bit grayscale e-ink panel—avoiding browser bloat while rendering sparklines, weather, sunset clouds, news, and agent quotas, plus an offline desktop preview.
A self-hosted pet monitor processing RTSP/HTTP camera feeds via FFmpeg into a dual dog-and-cat timeline with reviewed Bark notifications.
Dual dog & cat lanes · FFmpeg clips · 5-minute coalesced Bark alerts
Built with FastAPI, FFmpeg, and SQLite to record separate daily timelines for one dog and one cat—capturing rest, meals, and activity intervals, verifying event screenshots, and coalescing alerts sent via Bark.
A self-hosted hiking log pairing GPX routes and recorded tracks with 3D satellite terrain playback, elevation telemetry, and geotagged photos.
MapLibre 3D terrain · Synced elevation & Apple Live Photos · iOS Shortcuts
Zero-build full-stack journal powered by Python stdlib, SQLite, and MapLibre GL JS—combining satellite imagery, Terrarium elevation, time-synced photos (HEIC/Live Photo), and iPhone Shortcut batch import.
Turn a phone or tablet browser on the LAN into a low-latency Windows 10/11 live display, trackpad, and hotkey keyboard—installable as a PWA.
H.264 / NVENC capture + WebCodecs decode · Multi-monitor PWA
Streams Windows desktop frames over LAN using H.264/NVENC encoding and decodes directly in mobile browsers via WebCodecs—offering instant live view, touchpad gestures, and media controls with zero client install.
An empirical study and 56-page research report analyzing how four production LLM agents developed a shared operational pidgin over 8 continuous days and 43,870 valuation sheets.
8 days · 123 products · 2,202 sessions · 116,131 tool calls · 96.4B tokens
Treats scrubbed logs from an 8-day production multi-agent run (110,413 messages, 96.4B cumulative input tokens, initiated by a single human message) as an empirical corpus studying pidgin emergence and role sociolects.
02 / WORK
Quantitative investment firm, Hangzhou · Hangzhou
C++ HFT equities system
Developing core execution modules for high-frequency stock trading.
Templated intraday multi-account monitor: Unified account monitoring with composable rule templates to scale risk rules and avoid exchange triggers.
Intraday & post-trade risk platform
Integrating live trading outputs with market data feeds to surface real-time risk metrics for traders.
Permission-scoped internal agents
Deployed DeepSeek and Qwen locally with role-scoped access to market, product, valuation, sales, and risk data.
Zero-touch valuation verification
Engineered MainAgent, SubAgent, and Watchdog loops to parse all valuation sheets, auto-generate rules, and verify results.
Investment firm, Hangzhou · Hangzhou
Multi-market quant backtesting platform: Engineered minute-bar backtesting across equities, futures & options via PostgreSQL UNLOGGED tables, SignalR streaming, QLNet option pricing, and C++/CLI CTP wrappers.
18-module asset-management ERP
Implemented a dynamic entity and field-event model supporting codeless extensions, Office-to-PDF straddle-seal stamping, and rule-based field permissions.
Fund reporting & research parsing
Combined multi-source market feeds with layered caching (<5s NAV refresh), circuit breakers, and LLM report summarization.
Early internships
Enterprise software company, Shanghai · Shanghai
Built automated three-way matching across purchase orders, receipts, and invoices integrated with an approval workflow engine.
Technology company, Hangzhou · Hangzhou
Integrated retail customer-service flows with membership and coupon APIs for automated order tracking and returns.
03 / TECH
[01 / core_languages]
[02 / backend_and_ui]
[03 / data_and_infra]
[04 / ai_and_systems]
04 / ABOUT
B.Eng. in Software Engineering · ACM Programming Team
Outside of writing code, I enjoy hiking mountain trails and shooting photography—sharing astrophotography, dawn glow, cityscape, and landscape frames on my bilingual site lenscoder.cn. I also build practical side projects around daily life, including a 3D GPX hiking journal, a native C++ dashboard for a Kindle Paperwhite 3, a LAN phone remote, and a home timeline monitor for my dog and cat.
05 / CONTACT
All open-source code is hosted on GitHub, and photography works live on lenscoder.cn.