Qi Chen
Systems-minded web engineering with a focus on clean architecture, shipping velocity, and runtime discipline.
Professional Work
A concise snapshot of my core role, responsibilities, and highest-impact engineering outcomes in production HIL systems.
HIRAIN Technologies
System Software Engineer (HIL)
Served as the core engineer for a proprietary Hardware-in-the-Loop simulation platform, responsible for reverse engineering legacy vendor behavior, redesigning real-time IPC paths, and stabilizing system control infrastructure. Key contributions included reducing signal jitter by 40%, cutting IPC latency to ~230us, and improving signal capacity by 400%.
Qi's Innovation
A selected set of product-facing systems and tools built to turn engineering judgment into practical, usable workflows across writing, automation, and AI-assisted execution.
Technical Blog
Resume
Qi Chen
Full-Stack Software Engineer specializing in high-performance TypeScript/React applications and AI-driven solutions (Gemini/LLMs). Proven expert in Linux Kernel Instrumentation and Real-Time Architecture, with a track record of reducing system latency (70%) and solving 'Black Box' integration challenges. Adept at bridging the gap between mission-critical system optimization and modern, human-centric web architecture.
Professional Experience
Core Architect for a proprietary Hardware-in-the-Loop (HIL) simulation platform, replacing a commercial vendor solution.
HIL Platform Core Architect
[view]Lead Architect for a proprietary HIL simulation platform. Reverse-engineered legacy logic to design a kernel-level probe, reducing signal jitter by 40%. Diagnosed 'Temporal Coupling' bottlenecks and re-architected the IPC layer using POSIX Message Queues, smashing the latency barrier to ~230us (38% faster than industry standards) and increasing signal capacity by 400%.
Featured Projects
Qis Grammar
[view]AI-powered writing assistant that polishes grammar and style using Gemini models. Features human-centric design, typo detection, grammar recognition, and intelligent correction suggestions for an enhanced writing experience.
Technical Expertise
- Full-Stack & AI: Expertise in building scalable React/Next.js applications with TypeScript and ShadCN. Proficient in integrating LLMs (Gemini, OpenAI) for intelligent features and real-time data processing.
- System Internals & RT: Deep understanding of Linux Kernel Instrumentation, System V IPC (Shared Memory, Msg Queues), and Preempt-RT scheduling for mission-critical low-latency environments.
- Architecture & Protocols: Experience in designing decoupled, self-healing distributed systems using RPC (Thrift/gRPC) and low-level driver interfaces (ioctl, FPGA communication).