SENIOR DATA SCIENTIST - NLP

Happiest Minds Technologies; Pune District; On-site; INR 3,000,000 - 6,000,000; Full time

Job summary

Happiest Minds Technologies seeks an AI/ML Tech Lead to drive end-to-end architecture, implementation, and scaling of multimodal AI systems for media applications. You will lead teams delivering media understanding, personalization, search, moderation, and automation, ensuring engineering excellence and robust deployment.

The role requires expertise in CV, NLP, speech and multimodal transformer models, with strong GPU optimization and distributed training experience.

Qualifications

• 7-10 years AI/ML experience, including leadership roles.
• 5+ years ML engineering experience.
• Bachelor's/Master's in CS/AI.

Responsibilities

• Architect large-scale multimodal AI systems for video, audio, image pipelines.
• Design scalable training, inference and data ingestion for media AI.
• Lead video AI features: scene detection, video summarization, content moderation, annotation workflows, multimodal search and discovery.
• Oversee model development, integration, deployment and monitoring.
• Drive sprint planning, architecture reviews and performance evaluations.
• Mentor ML engineers and lead technical interviews.

Skills

CV models

NLP models

Speech models

Multimodal transformers

GPU optimization

Distributed training

Real-time processing

Education

Bachelor's/Master's in CS/AI

Tools

MLflow

Ray

Airflow

KServe

Triton Inference Server

Vector DBs

RAG

LangChain

Job description

Role Summary: The AI/ML Tech Lead drives the end-to-end architecture, implementation, and scaling of multimodal AI systems in the media organization. They lead teams delivering media understanding, personalization, search, moderation, and automation. This role ensures engineering excellence, scalability, and robustness in all AI systems.

Detailed Responsibilities - Architecture & Technical Leadership

• Architect large-scale multimodal AI systems handling video, audio, and image pipelines.
• Design scalable training, inference, and data ingestion systems for media AI.
• Lead design of video AI features such as:
• Scene detection
• Video summarization
• Content moderation
• Annotation workflows
• Multimodal search and discovery
• Design and optimize RAG pipelines pulling from transcripts, frames, subtitles, metadata.

Execution & Delivery

• Oversee model development, integration, deployment, and monitoring.
• Manage cross-functional delivery with engineers, designers, and media teams.
• Drive sprint planning, architecture reviews, and performance evaluations.

Technical Excellence & Governance

• Enforce best practices in coding, testing, model governance, and documentation.
• Build and maintain MLOps standards and model lifecycle processes.
• Ensure secure, compliant handling of media assets and user data.

Team Leadership

• Mentor ML engineers across levels.
• Lead technical interviews, onboarding, and capability building.

Must-Have Skills

• Expert in CV, NLP, speech models, and multimodal transformer models.
• Strong understanding of GPU optimization, distributed training (DeepSpeed, Horovod).
• Experience with real-time/near-real-time video processing.
• Hands-on with:
• MLflow, Ray, Airflow
• KServe, Triton Inference Server
• Vector DBs, RAG, LangChain

Preferred Skills

• Experience with broadcast/OTT platforms, MAM systems, and DAM workflows.
• Experience with generative imaging (Stable Diffusion) or video generation.

Qualifications

• 7-10 years AI/ML experience, including leadership roles.
• 5+ years ML engineering experience.
• Bachelor's/Master's in CS/AI.