Linyi Dai

CEO

China8 mos experience

Key Highlights

  • Expert in C++ and high-frequency trading systems.
  • Built data pipelines for over 500k daily transactions.
  • Architected multi-agent AI systems at leading firms.
Stackforce AI infers this person is a Fintech expert specializing in high-frequency trading and AI-driven solutions.

Contact

Skills

Core Skills

C++Systems EngineeringKubernetesPython (programming Language)Machine LearningPythonLarge Language Models (llm)

Other Skills

Ultra Low LatencyReliability EngineeringLinuxDeep LearningTensorFlow专业沟通Natural Language GenerationData MiningData ManagementSQLModel TrainingAlgorithm Design

About

Update: Currently Work as a Quant Dev in a large HFT Hedge Fund (AUM > $1B), focusing on HFT System Infra (C++) and Trade Execution. DM me for further details. I am an NYU CS Major with a foundation in competitive programming and a deep passion for building high-performance, low-latency systems. Driven by a passion for high-performance computing (HPC) and complex systems design. My background in competitive programming (C++) gives me a deep appreciation for algorithmic efficiency and low-level optimization. Core Expertise: C++ & Systems: Strong foundation from competitive programming (ACM ICPC Regional Silver, National Olympiad Regional 1st Prize ). Hands-on experience implementing a virtual memory system from scratch in my Weensy OS project. Python & AI/Data: Proven expertise in building and deploying large-scale Python applications. Quant Dev: Built data pipelines (Pandas) for 500k+ daily transactions and developed ML risk models (XGBoost) at UBS. AI Engineering: Architected multi-agent AI systems (LangChain, RAG) at both SAP and UBS. ML Research: Trained custom neural networks using PyTorch at NYU. SRE & DevOps: Experienced in high-availability environments as an SRE at SAP, resolving production incidents using Kibana, Kubernetes, and Jenkins. I am eager to contribute to challenging projects in low-latency systems or quantitative trading infrastructure.

Experience

8 mos
Total Experience
8 mos
Average Tenure
--
Current Experience

Hedge fund

Quantitative Developer

Dec 2025Present · 4 mos

  • C++, Systems and High Frequency Trading Stuff
C++Systems EngineeringUltra Low LatencyReliability Engineering

Sap

Site Reliability Engineer Intern

Aug 2025Jan 2026 · 5 mos · Hybrid

KubernetesPython (Programming Language)Linux

Ubs

Quant Intern

Nov 2024Feb 2025 · 3 mos · Shanghai, China · On-site

  • Explainable AI utilizing Decision Trees and SHAP
Python (Programming Language)

Immersal

Software Engineer

Oct 2024Jan 2025 · 3 mos · Helsinki, Uusimaa, Finland · Remote

  • building a point cloud data processing pipeline
  • iOS App Integration

Henry social

SDE

Jul 2024Sep 2024 · 2 mos · New York, United States · Remote

  • Integrated and debugged the Coinbase SDK for seamless interaction with the Coinbase API
  • Streamlined database interactions by integrating Drizzle ORM with PostgresSQL

Hupu sports (shanghai) media co. ltd

Natural Language Processing Engineer

Jun 2023Aug 2023 · 2 mos · Shanghai, China · On-site

  • Fine-tuned and deployed a large Transformer-based language model with 14 billion trainable parameters. Also, I curated a fine-tuning dataset at the scale of 10,000 datapoints.
PythonLarge Language Models (LLM)Natural Language GenerationData MiningData ManagementSQL+1

New york university

2 roles

Research Assistant

May 2023Sep 2023 · 4 mos · Shanghai, China

  • Collaborated with Prof. Keith Ross and Prof. Li Guo on deep learning research
Machine LearningPython (Programming Language)Deep LearningTensorFlow

Learning Assistant

Jan 2023May 2023 · 4 mos · Shanghai, China

  • Tutored Data Structures, organized weekly review sessions and hold office hours
Python专业沟通

Tencent

Tencent Spark Programme Group Leader

Aug 2020Oct 2020 · 2 mos · Shenzhen, Guangdong, China · On-site

  • Led a team to showcase a deep learning project (specializing in Computer Vision) at Tencent's Shenzhen Headquarters, implemented using Python.
Machine LearningDeep LearningTensorFlow

Education

New York University

Bachelor of Science - BS — Computer Science

Sep 2021Jun 2026

No.2 High School of East China Normal University

High School Diploma — High School/Secondary Diplomas and Certificates

Jan 2019Jan 2021

Shanghai Foreign Language School Affiliated to SISU

Middle School Diploma — General

Sep 2015Jun 2019

NYU Shanghai

Bachelor of Science - BS — Computer Science

Sep 2021May 2025

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