Hire the Best Algorithms Engineers
in Vietnam

90% of automated trading systems fail—not because the strategy is bad, but because amateur code cannot handle real-market conditions like slippage, latency, and spread widening. I don't just write scripts; I engineer institutional-grade trading machines that protect your capital and execute flawlessly. As the Founder of VQuant and a developer with 5 years of active market experience, I understand the mechanics of Order Flow, Prop Firm strict rules, and Smart Money Concepts (SMC). I know why a trade is taken, not just how to code it. CORE COMPETENCIES: 1. TradingView Architecture (Pine Script v6) Converting manual logic into zero-lag, non-repainting indicators and strategies. Building to Sell? I implement secure Commercial Licensing Systems (expiry dates, user authentication) so you can monetize your VQuant-style tools safely. Advanced multi-timeframe Dashboards for real-time monitoring. 2. MetaTrader Systems (MQL4 / MQL5) High-performance Expert Advisors (EAs) engineered for strict risk management. Prop Firm Solutions: Drawdown-control utilities specifically designed to pass and manage FTMO/Funding Pips accounts. Flawless Telegram-to-MT5 Trade Copiers. 3. Crypto & API Automation (Python / Node.js) Direct, low-latency Exchange Connectivity (Binance, Bybit, OKX) via REST API & WebSockets. Building VPS-hosted bots for logic outside the chart: HFT, Grid, DCA, and Arbitrage. Webhook Bridges: Firing TradingView alerts directly to your exchange instantly. 4. Quant Analysis & Financial Data Engineering API & On-Chain Extraction: Pulling massive historical and real-time datasets via complex APIs (Polymarket, Blockchain nodes, Crypto Exchanges). Data Transformation: Converting raw, messy JSON/API data into clean, structured Excel/CSV reports for institutional backtesting and analysis. Statistical Edge Research: Processing Order Flow, Volume Profile, and historical market data to help you validate your trading edge before risking real capital. THE VQUANT EDGE: Whether you need to extract and analyze millions of rows of historical market data, or you need to automate a complex HFT algorithm, I treat your capital and data like my own. I ensure 100% logic accuracy from data extraction to live trade execution. Stop losing money to emotional trading and poor execution. Send me a message with your strategy rules, and let's discuss how to automate your edge profitably.

Multi-agent RAG and AWS Infrastructure specialist. Shipped HR & Legal conversational AI for Covestro AG (Fortune 500 chemicals, €15B revenue) at FPT Software. I move AI out of the notebook and into compliant, observable AWS microservices. ------------------------------------------------------------------------------------------------------------------- I'm an AWS Certified Solutions Architect with 3+ years building production AI for enterprises. Most recently: 🏢 Covestro AG (via FPT Software) — Migrated legacy HR chatbot to a multi-agent RAG platform on AWS Bedrock Knowledge Base. Cohere V3 embeddings, Amazon ReRank, Azure OpenAI GPT-4o. Event-driven ingestion (Lambda + SQS + DLQ) auto-syncs ServiceNow hourly. Real-time PII redaction via Bedrock Guardrails. Zero-trust cross-account boundaries (WAF, IAM, KMS). ⚖️ FPT Software — Contract Intelligence — Skill-based extraction framework with prompt chaining. 35% accuracy lift, hallucinations sharply reduced. AWS Bedrock as multi-model gateway, SSE streaming, scales to thousands of contracts per batch. 🤖 HTI Group — Agentic Chatbot — LangGraph + LlamaIndex ReAct agents, AWS Lambda + ECS Fargate, CI/CD via AWS CDK (TypeScript), Langfuse observability, hierarchical semantic chunking with auto-merge. ------------------------------------------------------------------------------------------------------------------- What I do best: - 🧠 Multi-Agent Systems (LangGraph, LlamaIndex, ReAct, agent supervisors) - 🔍 Production RAG (hybrid search, cross-encoder reranking, hierarchical chunking, graph RAG) - ☁️ AWS Bedrock + OpenSearch + Lambda + ECS — real cloud-native, not localhost demos - 🔒 Compliance (PII redaction, Bedrock Guardrails, zero-trust, KMS, IAM least-privilege) - 📊 LLMOps (Langfuse, LangSmith tracing, eval pipelines, LLM-as-judge) - 🧰 Infrastructure as Code (AWS CDK / TypeScript, Docker, GitHub Actions) ------------------------------------------------------------------------------------------------------------------- Engagement models I take - Architecture review (1 week, fixed price — see Project Catalog) - POC → Production migration (3–6 weeks) - Long-term retainer for ongoing AI platform work (2+ months) 🔗 Let's talk — message me with your stack, your scale, and your timeline.

Hello, thanks for checking out my profile. I am a C/C++ software developer, with good algorithmic ability. I spent several years working in my home country and now I'm here to expand my horizons and gain some much-needed experience in an international environment, I can help you: - Know about C/C++ programming, OOP, concurrency. - Linux, C/C++ projects from start to finish. - Solve complex algorithm/data structures problems using C++ I am confident in my professionalism and ability to complete work before deadlines. My goal is to exceed my customers' expectations. I look forward to working with you to solve your problems and improve your business productivity. Send me a message. I'll reply within 30 minutes. Thanks you so much!

4+ Years of Backend & Cloud Expertise Backend Developer who turns complex logic into scalable, high-performance systems. 10+ Enterprise Projects | Millions of Records Optimized | AI-Powered Platforms Mobile & Web Solutions | Cloud-First Architectures I help startups, enterprises, and product teams build efficient, reliable, and scalable solutions. Whether you’re handling millions of users or fixing performance bottlenecks, I deliver results fast. Let’s talk before your competitors ship first. Certified in Software Development Lifecycle & Web Technologies Specialist in: Node.js • Python • Express • Next.js • React.js • AdonisJS • Nest.js Services Include Scalable Backend & API Development Modern Web & Mobile Apps Cloud & DevOps (AWS, GCP, Serverless) Database Design & Optimization QA, CI/CD & Full-Cycle Delivery As a Backend Developer, I’ve solved scaling issues for systems with hundreds of thousands of users, optimized databases with 500+ tables, and led projects from scratch to production. My experience spans finance apps, real estate platforms, healthcare systems, and AI-driven solutions. Tech Stack Programming: Node.js, Python, TypeScript, JavaScript Frameworks: Express, NestJS, Django, AdonisJS, Next.js, React.js Databases: PostgreSQL, MySQL, SQL Server Cloud/DevOps: AWS (Lambda, S3), GCP, Serverless, Docker, Kubernetes Others: GraphQL, NFC Apps, CI/CD Pipelines, SCRUM Agile Highlights Optimized large-scale systems (millions of records) for performance & scalability 1755366255035 Refactored legacy code reducing ~20% lines while improving clarity & speed Built AI Sign Language Recognition platform (SLOM) for the hearing-impaired Developed finance investment app with tailored fund recommendations Designed real-time bus/NFC system for safety & tracking Industries Served FinTech • Real Estate • Healthcare • AI & Ed-Tech • Transportation • Hospitality • Retail Let’s collaborate to build innovative, scalable, and future-proof solutions. Whether you need a custom CRM/ERP, a cloud-native backend, or an AI-powered platform, I can help you succeed. Backend Developer | Full-Stack Engineer | Cloud Solutions | Node.js Specialist

“I am a developer with experience in buiding digital signal processing system. I would be thrilled to collaborate with you on your project. • I’m experienced in VHDL language for FPGA platform, optimizing DSP algorithms and conducting simulation. • I will take complete responsibility for managing your project from its initiation to its completion. • Consistent communication holds great significance to me. Let’s stay connected throughout the process. Thank you for visiting my profile, and I look forward to working to get this soon.

Hello world!!! My name is Hiep, I am an embedded hardware design engineer. My expertise is designing hardware circuits, assembling, and testing the quality of the circuit. Give me your requirements or your product specification, and then we can discuss the timeline, cost, and how we can work together. Also, I have more than +7500 working hours, 100% Job Success on Upwork, and more than 8 years of experience in designing hardware for IoT Products, Consumer Products, and Edge devices, so I think I can use my experience to complete your project with the best result. + MY WORKFLOW: - Receive your detailed requirements or specifications, discuss what you want and what I need to do. - Design block diagram for the circuit: needs to be very detailed, it will decide what part will be used in the project. - Design schematics: follow the block diagram to design the schematic for the product. - Design PCB Layout: with requirements about Mechanical Design and Industrial Design, I will do the PCB Layout to fit with your Mechanical Design to achieve the best performance. - Extract production data: BOM, CAD, GERBER, DESIGN, ASSEMBLY GUIDELINE, IMPEDANCE CONTROL REQUIREMENTS, ... + MY TECHNICAL EXPERIENCES: - SoC/ MCU: STM32F0/F1/F2/F4/F7/H7, STM32L1/L4, MSP430, MSP432, ATMEGA, ATSAM, PIC, ESP8266, ESP32, CC2530, CC2538, nRF52810/ nRF51822/ nRF52832/ nRF52840/ nRF5340, ... - Sensor: light sensor, CO, Smoke Sensor, Dust Sensor, Air Sensor, pH sensor, IMU sensor, Accelero, Gyro sensor. - Biosensor SPO2/PPG (OB1203, MAX32664 sensor hub, MAX86176, MAX86178, AFE4950…), Skin temperature (AS6221, MAX30205, MAX30208), ECG (ADS1292, ADS1293, ADS1294, ADS1298, MAX86150, MAX30003,…), Heart rate, Blood pressure,... - True wireless earbuds, headsets and speakers, Bluetooth ® LE Audio standard from Qualcomm: QCC5141, QCC5171, QCC5181,... - Wireless communication: DA16200 BLE MCU, WiFi, BLE4.0/4.1/5.2, Lora, Zigbee, NFC, eSIM, GNSS/GPRS/4G/LTE Module: SIM900A, SIM908, Quectel MC60/M95/EG91x, SIM7600, SIM7080, SIM7090G... - Digital and high-speed electronics design: - Memories DDRx/LPDDRx, SDRAM, Camera and display interfaces (MIPI-DSI, MIPI-CSI, DisplayPort, etc), Data communication interfaces (QSPI, SPI, UART, I2C, FMC, I2S, USB 2/3.x, etc), ( - RF Designs: 1-6 GHz (UWB, Wifi, BLE, ZigBee, GPS, NB-IoT, LTE-M/LTE, Z-Wave, etc), 13,6 MHz, 128 kHz (NFC, RFID, etc), 433 MHz (Custom protocols). - Some industry circuits: Modbus, voltage to current/current to voltage converter, isolation interface, current/voltage measurement,… - Ultra-low power consumption device hardware developments: Ultra-low locker using non-rechargeable battery with life-span of up to 10 years, some wireless devices with 2 years operation with 620mAh battery,… - Power electronics: wireless charger, high power PD charger, BMS, PMIC, OV/OC/UV, high current PCB (30 – 100A),… - Mass Production: Discussing, processing steps, and managing the manufacturing process of PCBs, PCBAs, and assembly devices, processes in production include: discussing with the bare PCB factory, building self-test documents, production testing PCBAs at the factory, documenting and testing, and managing the device testing process after assembling the device. + Some of the products that I have designed and released to the market: - IoT products: Wearable devices tracking the biological index, Devices control hub over Wifi, Internet, Bluetooth, OBD devices,... - Smart Home Product: Design Home Gateway with Ethernet, WiFi, Zigbee, TFT LCD, ... Design Smart Switch with capacitive touch, Zigbee communication, 220VAC/110VAC load control, ... - Tracking Device: Using 3G/4G with GPS, this device is used for personal tracking ... and a lot of other products ... I hope to work with you, to help you complete your project and release your product to the market Best regards Hiep Le