Singapore
Yu Jie Lim – Builder of Systems | Deep Tech Optimist | Strategic Creator 🧩 What I’m Building Currently leading the development of a proprietary, autonomous trading system — engineered from the ground up to operate across multiple brokers, accounts, and machines. The system combines real-time execution, confidence-based capital allocation, and urgency-driven fills with scalable backend architecture. But to me, it's not just about markets — it’s about mastering complex systems, solving edge-case problems, and building long-term engines of value. 🧠 My Technical Foundation Graduated with a Double Degree in Business and Computing, and a Minor in Physics (NTU Singapore). My foundation spans full-stack development, algorithm design, and system optimization — with side quests into quantum information theory, simulation modeling, and machine learning. I love clean abstractions, asynchronous systems, and understanding the raw mechanics beneath what most people take for granted. 🌍 Broader Interests • Algorithmic and quantitative trading systems • Quantum computing and information theory • Simulation frameworks and edge-case automation • Green technology, deep tech startups, and future-focused investing • Systems that outlive the builder and generate positive feedback loops 👤 How I Think & Work • Systems-driven, yet intuitive when needed • Obsessive about design, performance, and clarity • Open-minded to ideas across domains — physics, finance, science and technology • High tolerance for solitude and deep work, but always excited by mission-aligned collaboration 🚀 What I’m Working Toward A future where deep tech, capital, and creativity intersect. My trading bot is Phase 1 — a foundation to eventually fund bigger dreams: from angel investing in green innovation to backing scientific research that moves humanity forward. If you're building at the edge of what's possible, let's connect.
Built an end-to-end autonomous trading platform from scratch — spanning strategy research, execution, risk management, and live operations — reaching first profitable automated live execution within 7 months as a solo founder. Designed and built a production-grade algorithmic trading platform using Python, MetaTrader 5, and a React-based control dashboard, supporting live multi-account execution and monitoring. Implemented a modular execution stack covering: - signal ingestion - trade validation & deduplication - position sizing & risk controls - order routing - real-time trade reconciliation - automated position management (BE, trailing SL, shutdown logic) Built a fault-tolerant orchestration layer with watchdogs, heartbeats, kill-switches, and automatic crash recovery to ensure continuous operation and safe failure modes during live trading. Developed a real-time control plane (FastAPI + React) enabling: - live account monitoring - manual overrides and trade intervention - deployment and shutdown of trading nodes Designed a scalable architecture roadmap evolving from a single-machine MVP to a multi-node, multi-broker trading cluster with redundancy and operational isolation. Built a quantitative research and optimisation pipeline leveraging multi-timeframe data, systematic backtesting, and multiprocessing-based parameter sweeps to iteratively refine trading strategies. Operated as a solo founder across the full lifecycle of the system, including: - systems and infrastructure engineering - quantitative strategy research - execution and risk engineering - live trading operations Preparing the platform for deployment under a Singapore-registered Pte. Ltd. as a foundation for commercial scaling. Focus Areas: Algorithmic Trading · Quantitative Research · Execution Systems · Risk Engineering · Real-Time Trading Infrastructure · Trading Systems Architecture · Automation · Founder-led Product Engineering
Supporting the business in a lean capacity while focusing on system optimization, staff coordination, and high-level ops. Currently serving as an advisor and contributor to long-term planning while pursuing independent ventures in trading technology and systems design.
Helped drive business growth and operational efficiency in a dynamic F&B environment. My key contributions include: Actively liaised with various delivery partners, enhancing our sales and revenue streams. This collaboration not only expanded our customer reach but also streamlined our delivery processes, contributing significantly to our bottom line. Took the lead in designing floor plans for new outlets. My focus was on optimizing space for operational efficiency and creating an ideal shopfront to appeal to customers. Spearheaded the design of product images and shop front posters. My creative approach aimed to capture the essence of our brand, drawing in customers and creating visually appealing displays that aligned with our marketing strategies. Managed monthly clerical tasks with precision. This included the meticulous filing of invoices, timely payments to suppliers, and ensuring our financial obligations were met with diligence. Drafted employment contracts on behalf of the company for new employees. Oversaw the payroll process, ensuring accurate and timely remuneration for our team. My role was critical in maintaining employee satisfaction and operational harmony.
As a Software Developer at Eastern Rice Dumpling, I led the development of a comprehensive "all-in-one" web application tailored to streamline and enhance managerial operations. This application is designed to centralise critical business functions, empowering our team with tools for efficiency, accuracy, and seamless collaboration. Key Features of the System: - HR System: Simplifies roster planning, pay calculation, and employee management while ensuring compliance with regulations. - Production Planning System: Optimizes resource allocation and minimizes wastage through data-driven planning and real-time monitoring. - Invoicing System: Tracks orders, automates auditing, and ensures timely payments to maintain a healthy cash flow. Additional Functionalities: - Role-Based Access Control: Ensures data security by allowing access based on user roles and responsibilities. - Performance Analytics Dashboard: Provides actionable insights into production efficiency, employee productivity, and financial performance. - Real-Time Notifications: Alerts users about critical tasks, such as overdue invoices, staffing shortages, or resource deficits. - Document Management System: Securely stores and organizes important business documents, contracts, and certifications for quick access. - Mobile-Friendly Design: Offers a responsive interface for managers to access the system on-the-go. Through this platform, I aim to empower our managerial staff with intuitive tools that enhance decision-making, save time, and reduce operational complexity. Developing this solution single-handedly has been a rewarding challenge, as it involves crafting a system that adapts to the evolving needs of our growing business.
Founded and registered a self-owned food business, overseeing all aspects of its early operations including logistics, staffing, customer management, and supply chain optimization. While day-to-day management has since transitioned to the on-ground team, I remain actively involved in: • Financial reporting, bookkeeping, and tax submissions • Compliance and license renewals • Strategic oversight and long-term planning This lean management model allows me to support the business while dedicating time to other strategic and technical responsibilities.
Developed a comprehensive React application to streamline quotation, invoice, and delivery order management for staff. Key features include: - Quotation and Invoice Management: Simplified the creation and editing process, reducing invoice creation time by 80%, and included audit features to track payment statuses, cutting auditing time by 50%. - Staff Allocation: Efficiently assigned staff members to each invoice or event for better tracking and accountability. - Customer and Product Management: Facilitated the easy update of customer and product records and provided access to relevant statistics when required. This solution significantly improved operational efficiency and visibility for the business.
Designed and deployed a full-featured web application to digitize and streamline the company's order-taking and invoicing processes. Key improvements and contributions include: Order and Receipt Management: Enabled staff to efficiently create, manage, and print receipts for customer orders via thermal printers, drastically improving workflow speed and reliability. Invoice and Statement Tracking: Developed robust auditing and monthly statement generation tools for better financial tracking and customer transparency. Customer Information System: Built intuitive interfaces for managing customer data and transaction histories, enhancing service personalization and business insights. Process Optimization: Reduced average order-taking time by up to 85%, significantly boosting daily operational throughput. This end-to-end solution was built using modern JavaScript technologies with Chakra UI and Ant Design components, hosted on Heroku and GCP for reliability and scalability.