Hire the Best Image/Object Recognition Freelancers
in Vietnam

Highly qualified Machine Learning Practitioner with a strong background and hands-on experience in Artificial Intelligence, seeking challenging opportunities to develop and apply cutting-edge AI solutions in the fields of Computer Vision, Audio Processing, and Natural Language Processing.

★★★★★ Welcome to My Profile! ★★★★★ I’m Kuro Kien, a Senior Developer with 8 + years of hands-on experience turning ideas into production-ready software. My passion is delivering high-quality, on-time, and on-budget solutions that help you meet your business goals. Below is an updated snapshot of what I bring to the table. ★★ Artificial Intelligence & Data Science ★★★ Generative AI & LLMs - End-to-end chatbot design with OpenAI, Anthropic & open-source models (LLama 2/3, Mistral, Gemma). - Retrieval-Augmented Generation (RAG) pipelines with **vector databases** (Pinecone, Chroma, FAISS, Milvus) for grounded, up-to-date answers. - Multi-agent orchestration (LangGraph / CrewAI) for complex workflows and tool use. ★★★ Computer Vision - Image processing (morphological ops, filtering, segmentation, contour & angle analysis). - Object & lane detection with Mask R-CNN, YOLOv8, Hough Transform, DeepSORT. - OCR pipelines (DB/EAST + Transformer/CTC, Tesseract) and face recognition (MTCNN, FaceNet). ★★★ Traditional Machine Learning - Regression, tree-based models, SVMs, clustering, and feature engineering for tabular data. - Forecasting & Time-Series: ARIMA/SARIMA, Prophet, and deep-learning seq2seq models. ★★★ Frameworks & Tooling: PyTorch, TensorFlow, Keras, scikit-learn, XGBoost, LightGBM. ★★ Data Engineering ★★★ Data Pipelines & Automation - Orchestration with n8n, Airflow & Prefect. - ETL/ELT design, data cleaning, and large-scale web scraping. ★★ Databases - Relational (PostgreSQL, MySQL) & NoSQL (MongoDB, Firestore). - Vector stores for semantic search (Pinecone, Milvus). - Query optimization, indexing, and backup strategies. ★★ Web & API Development ★★★ Backend - FastAPI & Flask for high-performance REST/GraphQL services. - Secure authentication (JWT/OAuth2) and rate-limited public APIs. ★★ Frontend - Interactive dashboards with Dash & Plotly. - React basics for embedding AI widgets. ★★ Full-Stack Delivery - Containerization with Docker & orchestration via Kubernetes. - CI/CD (GitHub Actions, GitLab CI) and cloud deployment (AWS, GCP, Azure, Vercel). ★★ DevOps & MLOps - Model packaging, versioning, and rollout with MLflow & BentoML. - Monitoring (Prometheus, Grafana) and automated retraining triggers. ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ★★★★★ How I Work Full-time freelancer** available across time zones (GMT +7). Agile, communicative, and committed to real-time collaboration. Focused on building long-term relationships and measurable success. Let’s team up and turn your next idea into reality—fast, secure, and scalable. Best Regards, Kuro Kien

If your model isn’t performing well, the problem is often the data — I help fix that. I specialize in data-centric computer vision systems: improving detection accuracy, reducing false positives, refining datasets, and deploying stable real-time AI pipelines on edge and mobile devices. I build end-to-end computer vision workflows from dataset preparation and model training to real-time Android deployment. What I help with: ✓ Reducing false positives and missed detections ✓ Dataset QA, cleaning, validation, and deduplication ✓ Improving label consistency across large-scale datasets ✓ Building feedback loops between model predictions and dataset correction ✓ Embedding-based similarity and clustering for duplicate detection ✓ Segmentation mask processing and structured object extraction ✓ Real-time object detection and tracking systems ✓ Improving tracking stability and frame-to-frame consistency ✓ Edge/mobile AI inference optimization ✓ Real-time Android deployment workflows Real-world experience: ✓ Built and deployed computer vision systems for fitness applications ✓ End-to-end pipeline development: dataset preparation → training → inference → Android deployment ✓ Real-time on-device inference pipelines ✓ Barbell tracking and repetition counting ✓ Skeleton-based motion analysis ✓ Equipment classification and tracking consistency ✓ Turning raw detections into stable, usable systems Technical stack: ✓ YOLO (training, fine-tuning, evaluation) ✓ OpenCV, PyTorch, Ultralytics YOLO, SAM ✓ TensorFlow Lite (TFLite) and ONNX deployment workflows ✓ Android Studio, CameraX ✓ CVAT, Label Studio, Roboflow, Labelbox, Supervisely ✓ QGIS, GeoTIFF, GeoJSON, MultiPolygon

I help AI and research teams improve model quality through human feedback, response evaluation, data annotation, and Vietnamese language quality review. My experience includes evaluating AI-generated responses, comparing and ranking model outputs, reviewing prompt-response pairs, identifying factual and linguistic errors, annotating text and audio data, and checking transcripts for accuracy. My services include: • AI response evaluation and quality rating • LLM output comparison and preference ranking • Prompt-response evaluation • Vietnamese linguistic annotation • Text and audio data annotation • Transcription and transcript quality assurance • Content classification and relevance evaluation • Fact-checking and error identification • Data labeling and dataset validation I follow detailed guidelines carefully, handle ambiguous cases, and maintain consistent evaluation standards across large task batches. I am a Top Rated Upwork freelancer with a 100% Job Success Score. Clients value my attention to detail, fast communication, and reliable delivery. As a native Vietnamese speaker with strong English proficiency, I am particularly suited to Vietnamese and multilingual AI training projects. Send me your guidelines or a sample task, and I will confirm the requirements, turnaround time, and next steps.

Hi there! I am an AI Engineer dedicated to building intelligent, scalable, and production-ready AI systems. Transitioning from a Junior Web Developer role, I bring a unique blend of robust system architecture knowledge and cutting-edge Artificial Intelligence expertise.

I specialize in data annotation with a focus on enhancing AI and computer vision projects. With hands-on experience in 2D and 4D labeling for autonomous driving datasets, I am adept at traffic sign annotation, object tracking, and processing LiDAR data. My background in Information Technology equips me with strong analytical skills that ensure accuracy and efficiency in every task. I am eager to apply my expertise in AI data operations to contribute to innovative projects. If you're looking for a detail-oriented professional who can elevate your data quality and enhance your machine learning models, I would love to discuss how I can help drive your project forward. Let's connect and turn your vision into reality.