Lead AI Engineer

Posted 13 Days Ago
Be an Early Applicant
Baner, Pune, Maharashtra, IND
In-Office
Senior level
AdTech • Marketing Tech • Software
The Role
Lead development of production-grade generative AI systems: design and deploy LLM-based, multimodal, and agentic applications; build retrieval and KG-augmented pipelines; implement fine-tuning and alignment (LoRA/QLoRA, RLHF/RLAIF); deploy scalable APIs and MLOps; collaborate cross-functionally and mentor junior engineers.
Summary Generated by Built In

Job Description:

AI Lead Engineer

Role Overview
 

We are seeking a Lead Generative AI Engineer with strong foundations in deep learning, transformer architecture, and practical experience building GenAI applications beyond basic RAG systems. The ideal candidate has hands-on experience/technical familiarity with LLM fine-tuning, multimodal models, retrieval systems, agentic frameworks, retrieval architectures, and production-grade ML deployment.
 

This role will partner with engineering, data science, and CX teams to build intelligent agents, multimodal experiences, personalization systems, and knowledge-grounded AI solutions that power the future of customer engagement for global brands.

Key ResponsibilitiesGenerative AI, Multimodal Systems & Agentic Frameworks
  • Build conversational and non-conversational, multimodal, and agentic AI applications using LLMs and frameworks such as LangChain, LangGraph, LlamaIndex, AutoGen, or similar.
  • Design AI workflows incorporating reasoning, planning, tool-use, memory, grounding, and external system integrations.
  • Develop Knowledge Graph (KG)-assisted AI systems, including entity extraction, linking, and KG-augmented retrieval.
  • Ensure safety, consistency, and hallucination-control through structured evaluation and guardrails.
Deployment, APIs & Cloud Engineering
  • Transform models into scalable APIs and microservices using Python, FastAPI/Flask, Docker.
  • Deploy and monitor ML/AI systems in AWS/Azure/GCP, optimizing for cost, latency, and reliability.
  • Collaborate with MLOps teams on CI/CD pipelines, model versioning, monitoring, and automated evaluation.
  • Work with big data technologies including Apache Spark, Hadoop, and NoSQL databases such as MongoDB.
Model Development & Applied AI Engineering
  • Build and optimize transformer-based and multimodal models using deep learning frameworks (e.g., PyTorch, TensorFlow).
  • Implement fine-tuning, alignment (RLHF/RLAIF), LoRA/QLoRA, pruning, and model evaluation pipelines.
  • Develop information retrieval systems, including hybrid dense–sparse retrieval, ranking, knowledge graphs, and relevance optimization.
  • Build predictive models and ML pipelines from scratch, including data preparation, feature engineering, and model selection.
Collaboration, Documentation & Mentorship
  • Work cross-functionally with CX, engineering, and product stakeholders to translate business needs into AI solutions.
  • Document models, experiments, evaluation frameworks, and deployment processes.
  • Mentor junior engineers and contribute to internal best practices, reusable components, and R&D initiatives.
Required Technical Skills
  • Programming: Python (advanced), SQL; robust experience with API development and data engineering,
  • Backend Frameworks: Flask, FASTAPI, Django
  • Machine Learning: Predictive modelling, deep learning, optimization, embeddings, vector search, model evaluation.
  • Generative AI: LLMs, RAG, multimodal architectures, agents, prompt engineering, grounding, knowledge graphs.
  • Cloud Platforms: AWS, Azure, or GCP with hands-on experience deploying and scaling AI systems.
  • Data Technologies: Apache Spark, Hadoop, MongoDB; strong understanding of data pipelines and large-scale processing.
  • Math Foundations: Linear algebra, probability, statistics.
Experience Requirements
  • Minimum 5-6 years of hands-on software development experience including building and deploying machine learning models into production.
  • 2+ years of experience working with deep learning, GenAI, or transformer-based architectures.
  • Demonstrated experience building GenAI applications beyond simple RAG (e.g., agents, multimodal, custom LLM fine-tuning).
  • Experience integrating AI systems in enterprise-grade environments.

Skill Category

Lead AI Engineer

Transformers & Deep Learning

Applies LoRA/QLoRA, distillation, debugging, optimization.

Generative AI (LLMs & Multimodal)

Builds tool-using pipelines, multilingual/multimodal flows.

Information Retrieval & Relevance

Implements hybrid retrieval + ranking, KG-enhanced semantic retrieval

Predictive Modeling

Builds and tunes end-to-end ML pipelines.

Knowledge Graphs

Builds KG pipelines (entity linking, embeddings).

Conversational AI

Multi-turn, multilingual dialogue systems with evaluation metrics.

Agentic Frameworks

Multi-step agent workflows with planning & memory.

Model Deployment

Scales services with CI/CD, monitoring, GPU/accelerator ops.

Cloud & MLOps

End-to-end model lifecycle automation.

Big Data & Pipelines

Uses Spark/Hadoop/MongoDB effectively.

Deep Learning

Understand and applied deep learning architectures – RNNs, LSTMs, Transformers

Attitude & Mindset
  • Growth-oriented, collaborative, and experimentation-driven.
  • Strong problem-solving skills with a bias toward action.
  • Ability to communicate complex concepts clearly to non-technical stakeholders.
  • Open and flexible towards a hybrid work structure with no less than 2-days work from office – This is to ensure that the team working in the AI domain regularly connects and does knowledge exchange across projects

Location:

DGS India - Pune - Baner M- Agile

Brand:

Merkle

Time Type:

Full time

Contract Type:

Permanent

Skills Required

  • Minimum 5-6 years hands-on software development experience including building and deploying machine learning models into production
  • 2+ years experience with deep learning, generative AI, or transformer-based architectures
  • Experience building GenAI applications beyond simple RAG (agents, multimodal, custom LLM fine-tuning)
  • Advanced Python programming
  • SQL
  • Experience with backend frameworks: Flask, FastAPI, Django
  • API development and data engineering experience
  • Experience with PyTorch and TensorFlow
  • Hands-on experience with model fine-tuning and alignment techniques (LoRA, QLoRA, RLHF, RLAIF) and pruning
  • Familiarity with LangChain, LangGraph, LlamaIndex, AutoGen or similar frameworks
  • Containerization with Docker and deployment of models as scalable APIs/microservices
  • Cloud deployment experience (AWS, Azure, or GCP) for scaling AI systems
  • Experience with big data technologies: Apache Spark, Hadoop, and NoSQL (MongoDB)
  • Experience building information retrieval systems, embeddings, vector search, and hybrid dense-sparse retrieval
  • Knowledge of knowledge graphs, entity extraction/linking, and KG-augmented retrieval
  • Experience with CI/CD, model versioning, monitoring, and MLOps pipelines
  • Strong math foundations: linear algebra, probability, statistics
  • Experience integrating AI systems in enterprise-grade environments
  • Ability to document work, communicate to non-technical stakeholders, and mentor junior engineers
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: London
6,507 Employees

What We Do

Dentsu Creative is a global creative agency network designed to unlock exponential growth for clients. We use Transformative Creativity as a differentiating, driving force to bring our capabilities together to positively impact people, business and society. Established in 2022, Dentsu Creative is integrated with dentsu’s Media and CXM businesses in over 145 countries and regions, to offer Integrated Growth Solutions.

Similar Jobs

dentsu Logo dentsu

Artificial Intelligence Engineer

AdTech • Marketing Tech
In-Office
Kharadi, Pune, Maharashtra, IND
15492 Employees

Dentsu Creative Logo Dentsu Creative

Artificial Intelligence Engineer

AdTech • Marketing Tech • Software
In-Office
Kharadi, Pune, Maharashtra, IND
6507 Employees

dentsu Logo dentsu

Artificial Intelligence Engineer

AdTech • Marketing Tech
In-Office
Baner, Pune, Maharashtra, IND
15492 Employees

dentsu Logo dentsu

Artificial Intelligence Engineer

AdTech • Marketing Tech
In-Office
Kharadi, Pune, Maharashtra, IND
15492 Employees

Similar Companies Hiring

Golden Pet Brands Thumbnail
Digital Media • eCommerce • Information Technology • Marketing Tech • Pet • Retail • Social Media
El Segundo, California
178 Employees
Kepler  Thumbnail
Fintech • Software
New York, New York
6 Employees
Onshore Thumbnail
Artificial Intelligence • Fintech • Software • Financial Services
New York, New York
60 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account