Recruitment Position Senior AI Engineer

Job Description

AI Vision – Computer Vision

  • Research, develop, and integrate AI models for image and video analytics.
  • Develop features including Face Recognition, Fire & Smoke Detection, Object Detection, PPE Detection, and Intrusion Detection.
  • Integrate AI with IP camera systems, RTSP, and the CW AI VISION platform.
  • Optimize model accuracy, real-time processing performance, and GPU/CPU resource utilization.
  • Deploy AI solutions on Edge, On-premise, and Cloud environments.

AI Agent & Workflow Automation

  • Develop AI Agents using LLMs, RAG, and Tool Calling.
  • Build AI-powered workflows to automate business processes.
  • Integrate AI with ERP, CRM, APIs, and enterprise systems.
  • Develop OCR, Document AI, and Intelligent Automation applications.
  • Optimize AI performance, operating costs, and security.

Pre-sales & PoC

  • Collaborate with the Sales team to analyze customer requirements and provide AI solution consulting.
  • Assess technical feasibility, propose system architectures, and estimate implementation costs.
  • Develop demos and Proofs of Concept (PoCs), present solutions, and evaluate results with customers.
  • Support the preparation of Technical Proposals and the implementation of real-world solutions.

Product Development & Deployment

  • Develop reusable and commercially viable AI modules.
  • Build APIs, integrate AI components, and deploy AI products.
  • Optimize system quality, performance, and scalability.
  • Research and recommend technologies to continuously improve products.

Job Requirements

  • Bachelor’s degree in Computer Science, Artificial Intelligence, Data Science, or a related field.
  • Strong foundation in Machine Learning, including Supervised Learning, Unsupervised Learning, Reinforcement Learning, Feature Engineering, Model Evaluation, Cross-Validation, Overfitting, and Underfitting.
  • Experience building, training, and optimizing Machine Learning/Deep Learning models using PyTorch or TensorFlow; knowledge of algorithms such as Decision Trees and Random Forests, as well as model optimization techniques.
  • Proficiency in Python or C/C++; experience with the Python AI ecosystem, including NumPy, Pandas, SciPy, Scikit-learn, and related libraries.
  • Experience developing backend services and RESTful APIs using FastAPI, Flask, or equivalent Python web frameworks.
  • Strong Software Engineering fundamentals, including System Design, Git, Linux, Docker, PostgreSQL/MySQL, Redis, Testing, Logging, and Monitoring.
  • Hands-on experience in at least two of the following areas:

Computer Vision / Image Processing

  • Experience with Image Classification, Object Detection, Segmentation, OCR, and Tracking.
  • Proficiency in PyTorch and image processing with OpenCV; experience with YOLO-family models, Detectron2, Mask R-CNN, SAM, or similar technologies.
  • Experience with the full model development lifecycle, from Dataset Preparation and Annotation to Training, Fine-tuning, and Model Evaluation using metrics such as mAP, Precision, Recall, and F1-score.

LLM / Chatbot / NLP Systems

  • Experience developing applications using LLMs and Generative AI.
  • Hands-on experience with Prompt Engineering, Structured Output, Tool Calling, Function Calling, Context Management, Fine-tuning, and LLM APIs (OpenAI, Anthropic, Google Gemini, etc.).
  • Experience building RAG systems, including Chunking, Embedding, Retrieval, Reranking, Evaluation, and Vector Databases.

AI Agent

  • Experience designing and developing AI Agents, Agentic Workflows, or Multi-Agent Systems.
  • Understanding of Agent Architecture, Planning, Memory Management, and Tool Integration.
  • Hands-on experience with LangChain, LangGraph, LlamaIndex, or equivalent frameworks.

Time Series Forecasting / Anomaly Detection

  • Experience building time-series forecasting and anomaly detection models, evaluating model performance, and deploying models on real-world data.

Recommendation Systems / Fraud Detection

  • Experience developing recommendation, ranking, or fraud detection systems.
  • Understanding of Feature Engineering, Ranking, Candidate Retrieval, Model Evaluation, and model optimization for large-scale datasets.
  • Strong analytical thinking, self-learning ability, and the capacity to quickly adopt new AI technologies.
  • Good command of written technical English, with effective communication and teamwork skills.

Preferred Qualifications:

  • Experience deploying AI products in production environments for real customers or end users.
  • Experience optimizing AI system performance in terms of latency, throughput, and operating costs.
  • Experience deploying systems on Cloud platforms (AWS/GCP/Azure), implementing CI/CD pipelines, Containerization, and GPU Deployment.
  • Experience deploying or operating LLM serving systems such as vLLM, SGLang, or similar platforms.
  • Experience with Kubernetes and MLOps/LLMOps tools, such as MLflow, Kubeflow, Argo Workflows, and Weights & Biases.
  • Experience building evaluation frameworks for LLM or RAG systems, such as RAGAS, DeepEval, or LLM-as-a-Judge.
  • Experience fine-tuning LLMs using LoRA, QLoRA, or other Parameter-Efficient Fine-Tuning (PEFT) techniques.

Benefits & Perks for CO-WELLers

  • Bonuses and salary reviews twice a year.
  • 100% salary during the probation period.
  • 14+ days of annual leave per year.
  • Premium health insurance for all employees.
  • Annual health check-ups.
  • Comprehensive social, health, and unemployment insurance contributions at favorable levels to ensure employee benefits.
  • Monthly team-building allowances and an annual company trip.

Exclusive Benefits for Female Employees

  • 2.5 hours of menstrual leave per month.
  • 100% salary during maternity leave.
  • Five additional days of leave for prenatal check-ups during pregnancy.

An Excellent Working Environment

  • Fully equipped with modern working tools and equipment to meet project requirements.
  • Opportunities to work with and receive guidance from experienced experts and Senior-level professionals.
  • Monthly allowances for sports club activities, including Yoga, Zumba, football, and more.
  • Regular updates on new and improved company policies.
  • Dedicated relaxation areas for entertainment and dining.
  • Open, comfortable, and well-equipped workspace.

Training & Personal Development Opportunities

  • Regular training sessions and seminars to stay up to date with the latest technology trends.
  • Professional, management, and soft-skills training tailored to company development goals and employee needs identified through internal surveys.
  • Financial support for professional certification exams, as well as allowances for Japanese language and professional certifications aligned with the Company’s development strategy.
  • Japanese language classes ranging from beginner to advanced levels, taught by native-speaking instructors during regular working hours.
  • Opportunities to work in Japan for employees with Japanese language proficiency.
Application deadline: 30/11/2026
Salary: Negotiation
Position: Senior
Location: Hà Nội
Number of requiment: 1
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