Remote, /, United States

Cognizant is hiring an AI/ML Engineer

Responsibilities

  • Create and deploy enterprise-level Generative AI functionalities leveraging Large Language Models, embedding techniques, and multimodal frameworks such as Llama, Mistral, Claude, GPT series, and Stable Diffusion.
  • Construct and refine Retrieval-Augmented Generation pipelines, vector storage solutions like Pinecone, Weaviate, Qdrant, Chroma, or PGVector, and develop prompt engineering and tool-integration workflows.
  • Build and maintain Python-based backend applications using FastAPI, Flask, or Django, along with orchestration logic for AI agents and multi-phase processes.
  • Fine-tune and align open-source large language models using parameter-efficient methods like LoRA, QLoRA, and DPO, supported by frameworks including Hugging Face Transformers, PEFT, TRL, Unsloth, and Axolotl.
  • Embed generative AI features into current software platforms, enabling chatbots, co-pilot tools, content creation, code assistance, and image or video generation functionalities.

Responsibilities

  • Design and implement production-grade Generative AI features using Large Language Models (LLMs) embedding models and multimodal architectures (Llama Mistral Claude GPT series Stable Diffusion etc.).
  • Build and optimize Retrieval-Augmented Generation (RAG) pipelines vector databases (Pinecone Weaviate Qdrant Chroma PGVector) and prompt engineering/tool-calling workflows.
  • Develop Python backend services (FastAPI Flask Django) and orchestration layers for AI agents and multi-step workflows.
  • Fine-tune and align open-source LLMs (LoRA QLoRA DPO) using frameworks such as Hugging Face Transformers PEFT TRL Unsloth and Axolotl.
  • Integrate GenAI capabilities into existing products (chatbots co-pilots content generation code assistants image/video generation etc.).
Required Skills
PythonLarge Language ModelsLlamaMistralClaudeGPTDiffusion modelsStable DiffusionRAG pipelinesVector databasesPineconeWeaviateFastAPIHugging Face TransformersPEFT PythonLarge Language ModelsLlamaMistralClaudeGPTDiffusion modelsStable DiffusionRAG pipelinesVector databasesPineconeWeaviateFastAPIHugging Face TransformersPEFT
About company
Cognizant
Cognizant is a global technology and professional services leader, empowering clients to reimagine processes, innovate and transform in a rapidly evolving digital landscape. In the UK, we work with major public sector bodies to deliver secure, scalable, citizen-centred digital services that make a real impact.
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Job Details
Department Software Development
Category data
Posted 2 months ago