Senior Data Scientist
India
Job Description
Senior Data Scientist
| Gautam Buddha Nagar, Uttar PradeshHyderabad, Telangana

Job Summary

Job Title: Data Scientist / AI Engineer / Prompt Engineer  Experience: 7+ Years  Location: Noida / Hyderabad  Role Overview  We are looking for a highly skilled Data Scientist / AI Engineer / Prompt Engineer with 7+ years of experience in AI/ML, Generative AI, and advanced analytics. The ideal candidate will work on building intelligent systems, LLM-based applications, and data-driven solutions, driving innovation across business use cases.  Key Responsibilities  Data Science & Machine Learning  Design, build, and deploy machine learning models for predictive analytics, classification, and forecasting  Perform data exploration, feature engineering, and statistical analysis  Apply advanced techniques in ML, deep learning, and NLP  Evaluate model performance and ensure accuracy, scalability, and robustness  AI Engineering (LLMs & GenAI)  Develop and deploy AI/ML solutions using modern frameworks and cloud platforms  Build LLM-powered applications (chatbots, assistants, recommendation systems)  Work with models such as OpenAI, Azure OpenAI, Hugging Face, or similar  Implement RAG (Retrieval-Augmented Generation) pipelines  Integrate AI models into production systems and APIs  Prompt Engineering  Design and optimize prompts for LLMs to improve output quality and accuracy  Conduct prompt experimentation, evaluation, and fine-tuning  Build reusable prompt frameworks, templates, and guardrails  Work on AI safety, hallucination reduction, and response optimization  Data Engineering & Integration  Work with data teams to build data pipelines and feature stores  Process structured and unstructured data at scale  Integrate AI solutions with enterprise data systems  MLOps & Deployment  Build end-to-end ML pipelines (training, deployment, monitoring)  Implement CI/CD pipelines for ML workflows  Perform model monitoring, retraining, and performance tracking  Required Skills & Qualifications  Core Technical Skills  Strong proficiency in:   Python (mandatory)  Libraries: Pandas, NumPy, Scikit-learn, TensorFlow/PyTorch  Experience in:   Machine Learning & Statistical Modeling  Natural Language Processing (NLP)  Generative AI & LLMs  Hands-on experience with:   LLMs (OpenAI, Azure OpenAI, Hugging Face, etc.)  Prompt Engineering techniques  RAG architectures and vector databases (FAISS, Pinecone, etc.)  Understanding of:   Tokenization, embeddings, fine-tuning, and evaluation metrics  Cloud & Platforms  Experience with:   Azure / AWS / GCP  Familiarity with:   Databricks / MLflow / Azure ML / SageMaker  Data Engineering  Strong knowledge of:   SQL and data querying  Data pipelines and ETL/ELT processes  Exposure to big data tools (Spark, Hadoop) – preferred  API & Integration  Experience in:   Building a

Key Responsibilities

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Skill Requirements

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Other Requirements

and consuming REST APIs 

Deploying models using Flask / FastAPI 

 

Tools & Technologies 

Version control: Git / GitHub / Bitbucket 

MLOps tools: MLflow, Kubeflow, Airflow 

Containers: Docker (preferred) 

 

Leadership & Collaboration 

Ability to work cross-functionally with data engineers, product teams, and business stakeholders 

Experience mentoring junior team members 

Strong ability to translate business problems into AI/ML solutions 

 

Soft Skills 

Strong analytical and problem-solving mindset 

Excellent communication and storytelling with data 

Innovation-driven thinking and adaptability 

Ability to work in a fast-paced environment 

 

Education 

Bachelor’s/Master’s degree in Computer Science, Data Science, AI, or related field 

 

Preferred Qualifications 

Experience with enterprise AI/ML implementations 

Exposure to AI governance, responsible AI, and ethics 

Knowledge of multi-modal AI (text, image, audio models) 

Certifications in:  

AI/ML or Cloud platforms (Azure/AWS/GCP) 

 

Why Join Us 

Work on cutting-edge Generative AI and LLM-based solutions 

Opportunity to build next-gen AI products and platforms 

Collaborative and innovation-driven environment 

Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 226,300 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending December 2025 totaled $14.5 billion.

23 Benefits At HCLTech, we believe in empowering our employees with comprehensive benefits that support their professional growth and enhance their well-being. When you sign up for a career with us, you gain access to: https://rmkcdn.successfactors.com/147eb21f/a701dca9-f32d-4fc9-9447-6.svg Industry-benchmarked compensation https://rmkcdn.successfactors.com/147eb21f/b0c54381-ddcc-4a33-9b35-9.svg Best-in-class healthcare benefits https://rmkcdn.successfactors.com/147eb21f/b73027be-7aae-4d36-a090-4.svg Personal time off https://rmkcdn.successfactors.com/147eb21f/d5b4fdfd-2e99-4e26-9878-9.svg Maternity and paternity benefits https://rmkcdn.successfactors.com/147eb21f/3d42b0fc-4652-435a-9ece-c.svg Access to skills / higher education programs/resources https://rmkcdn.successfactors.com/147eb21f/aeddeaf2-9e25-4584-ad11-d.svg Discounts on products and services via Benefit Box https://rmkcdn.successfactors.com/147eb21f/a9609a3b-2700-4b3c-9d90-a.svg Participate in CSR programs and live life with a purpose https://rmkcdn.successfactors.com/147eb21f/c6e33851-710f-4634-bd69-f.svg Opportunities to grow and advance your career Note: The benefits listed above vary depending on the nature of your employment and the country where you work. Some benefits may be available in some countries but not in all.