Lumina Datamatics
Technical Lead
Skills
12 days ago
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Important information
Contract type:
Permanent
Location:
Chennai, Tamil Nadu, India
Work mode:
Hybrid
Published on:
9 October 2026
What they need
Job Description: AI/ML Engineer
Job Title
Tech Lead - AI
Job Summary
We are seeking a skilled AI/ML Engineer with strong hands-on experience across the end-to-end machine learning lifecycle, from dataset curation and model development to evaluation, deployment, and production optimization. The ideal candidate should have practical expertise in training and fine-tuning machine learning and deep learning models, benchmarking model performance, deploying AI/ML solutions, and troubleshooting complex technical issues to ensure reliable, scalable, and efficient systems.
Key Responsibilities
1. Dataset Curation and Preparation
* Collect, clean, preprocess, and curate datasets for AI/ML model development.
* Perform data validation, transformation, annotation, labeling, and quality checks.
* Identify and address missing values, data inconsistencies, class imbalance, and potential data leakage.
* Prepare high-quality training, validation, and test datasets.
2. Model Training and Fine-Tuning
* Develop, train, and fine-tune machine learning and deep learning models based on project requirements.
* Apply appropriate algorithms, architectures, hyperparameter tuning, and optimization techniques.
* Work with pre-trained models and adapt them to domain-specific use cases.
* Optimize training workflows for performance, accuracy, and computational efficiency.
3. Model Evaluation and Benchmarking
* Evaluate model performance using relevant metrics and validation methodologies.
* Conduct benchmarking against baseline models and established performance standards.
* Perform error analysis, identify performance gaps, and implement improvements.
* Assess model robustness, generalization, reliability, and suitability for real-world applications.
4. Model Deployment
* Deploy trained models into development, testing, and production environments.
* Develop and integrate model-serving APIs and inference pipelines.
* Work with containerization, CI/CD pipelines, cloud platforms, and model deployment frameworks.
* Implement model versioning, monitoring, logging, and performance tracking.
5. Troubleshooting and Optimization
* Diagnose and resolve issues related to model accuracy, training stability, inference latency, and resource utilization.
* Optimize AI/ML systems for scalability, reliability, throughput, and cost efficiency.
* Monitor deployed models for performance degradation and data or concept drift.
* Collaborate with engineering and data teams to resolve production issues and continuously improve system performance.
Required Skills and Qualifications
* Strong practical experience in dataset preparation, model training, fine-tuning, evaluation, deployment, and optimization.
* Proficiency in Python and relevant data science and machine learning libraries, such as NumPy, Pandas, Scikit-learn, PyTorch, or TensorFlow.
* Experience with data preprocessing, feature engineering, model validation, and performance benchmarking.
* Hands-on experience deploying and maintaining AI/ML models in production environments.
* Knowledge of REST APIs, Git, Docker, and CI/CD practices.
* Understanding of cloud-based AI/ML infrastructure and model monitoring.
* Strong analytical, debugging, and problem-solving skills.
* Ability to work collaboratively with cross-functional teams and deliver production-ready AI/ML solutions.
Preferred Qualifications
* Experience with cloud platforms such as AWS, Microsoft Azure, or Google Cloud.
* Familiarity with MLOps tools and practices, including experiment tracking, model registries, and automated deployment pipelines.
* Experience with large language models (LLMs), generative AI, or retrieval-augmented generation (RAG), where relevant to the project.
* Knowledge of model quantization, pruning, distributed training, or inference optimization.
* Experience working with large-scale datasets and production AI/ML systems.
Experience
Candidates should have Min 8-12 years of hands-on experience in building, training, evaluating, deploying, and maintaining AI/ML solutions. The required years of experience can be defined based on the seniority of the role.
Key Success Criteria
* High-quality and reliable dataset preparation.
* Improved model accuracy and measurable benchmark performance.
* Successful deployment of scalable, production-ready models.
* Reduced inference latency and computational overhead.
* Effective troubleshooting and continuous optimization of AI/ML systems.
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