Data Scientist / Senior AI Engineer

About the Role
We are seeking a highly skilled and experienced Senior AI Engineer to lead the design, development, and implementation of robust and scalable pipelines and backend systems for our Generative AI applications. In this role, you will be responsible for orchestrating the flow of data, integrating AI services, developing RAG pipelines, working with LLMs, and ensuring the smooth operation of the backend infrastructure that powers our Generative AI solutions.You will also be expected to apply modern LLMOps practices, handle schema-constrained generation, optimize cost and latency trade-offs, mitigate hallucinations, and ensure robust safety, personalization, and observability across GenAI systems.

Responsibilities
Generative AI Pipeline DevelopmentDesign and implement scalable and modular pipelines for data ingestion, transformation, and orchestration across GenAI workloads.Manage data and model flow across LLMs, embedding services, vector stores, SQL sources, and APIs.Build CI/CD pipelines with integrated prompt regression testing and version control.Use orchestration frameworks like LangChain or LangGraph for tool routing and multi-hop workflows.Monitor system performance using tools like Langfuse or Prometheus.Data and Document IngestionDevelop systems to ingest unstructured (PDF, OCR) and structured (SQL, APIs) data.Apply preprocessing pipelines for text, images, and code.Ensure data integrity, format consistency, and security across sources.AI Service IntegrationIntegrate external and internal LLM APIs (OpenAI, Claude, Mistral, Qwen, etc.).Build internal APIs for smooth backend-AI communication.Optimize performance through fallback routing to classical or smaller models based on latency or cost budgets.Use schema-constrained prompting and output filters to suppress hallucinations and maintain factual accuracy.Retrieval-Augmented Generation (RAG) PipelinesBuild hybrid RAG pipelines using vector similarity (FAISS/Qdrant) and structured data (SQL/API).Design custom retrieval strategies for multi-modal or multi-source documents.Apply post-retrieval ranking using DPO or feedback-based techniques.Improve contextual relevance through re-ranking, chunk merging, and scoring logic.LLM Integration and OptimizationManage prompt engineering, model interaction, and tuning workflows.Implement LLMOps best practices: prompt versioning, output validation, caching (KV store), and fallback design.Optimize generation using temperature tuning, token limits, and speculative decoding.Integrate observability and cost-monitoring into LLM workflows.Backend Services OwnershipDesign and maintain scalable backend services supporting GenAI applications.Implement monitoring, logging, and performance tracing.Build RBAC (Role-Based Access Control) and multi-tenant personalization.Support containerization (Docker, Kubernetes) and autoscaling infrastructure for production.

Required Skills and Qualifications
EducationBachelors or Masters in Computer Science, Artificial Intelligence, Machine Learning, or related field.

Experience
5+ years of experience in AI/ML engineering with end-to-end pipeline development.Hands-on experience building and deploying LLM/RAG systems in production.Strong experience with public cloud platforms (AWS, Azure, or GCP).

Technical Skills
Proficient in Python and libraries such as Transformers, SentenceTransformers, PyTorch.Deep understanding of GenAI infrastructure, LLM APIs, and toolchains like LangChain/LangGraph.Experience with RESTful API development and version control using Git.Knowledge of vector DBs (Qdrant, FAISS, Weaviate) and similarity-based retrieval.Familiarity with Docker, Kubernetes, and scalable microservice design.Experience with observability tools like Prometheus, Grafana, or Langfuse.Generative AI Specific SkillsKnowledge of LLMs, VAEs, Diffusion Models, GANs.Experience building structured + unstructured RAG pipelines.Prompt engineering with safety controls, schema enforcement, and hallucination mitigation.Experience with prompt testing, caching strategies, output filtering, and fallback logic.Familiarity with DPO, RLHF, or other feedback-based fine-tuning methods.

Soft Skills
Strong analytical, problem-solving, and debugging skills.Excellent collaboration with cross-functional teams: product, QA, and DevOps.Ability to work in fast-paced, agile environments and deliver production-grade solutions.Clear communication and strong documentation practices.

Preferred Qualifications
Experience with OCR, document parsing, and layout-aware chunking.Hands-on with MLOps and LLMOps tools for Generative AI.Contributions to open-source GenAI or AI infrastructure projects.Knowledge of GenAI governance, ethical deployment, and usage controls.Experience with hallucination suppression frameworks like Guardrails.ai, Rebuff, or Constitutional AI.Shift Time: 2:30 PM to 11:30 PM IST

Location-Remote,Delhi NCR,Bangalore,Chennai,Pune,Kolkata,Ahmedabad,Mumbai,Hyderabad