Senior AI Engineer

Your Impact

• Design and implement AI/ML models, with a focus on:
  • NLP and transformer-based architectures
  • Integration of Large Language Models (LLMs) such as OpenAI, Claude, or open-source alternatives
  • Implementation of Retrieval-Augmented Generation (RAG) pipelines
• Conduct fine-tuning, prompt engineering, and model evaluation to optimize solutions
• Develop agentic AI workflows for autonomous task execution in enterprise use cases
• Ensure model performance, scalability, cost efficiency, and latency optimization for production systems
• Build and maintain end-to-end web applications:
  • Frontend: React.js or React Native
  • Backend: Node.js or Python
• Develop RESTful APIs and microservices to enable AI integration
• Architect and deploy scalable AI-driven systems on cloud platforms (AWS preferred)
• Implement high-quality coding standards, testing strategies, and CI/CD practices
• Collaborate with product and engineering teams to design AI-powered features and user experiences
• Build and manage data pipelines for training and inference, including integration with vector databases (e.g., Pinecone, FAISS)
• Handle diverse, structured, and unstructured datasets for RAG and advanced AI applications

Skills & Experience

• 5+ years of experience in development.
• Proven experience with:
  • Generative AI and LLM ecosystems (OpenAI, Anthropic, open-source models)
  • NLP methods, including transformer architectures
  • Model fine-tuning, evaluation, and prompt engineering
• Strong backend development with Python (FastAPI) or Node.js, and hands-on work integrating AI services into applications
• Frontend development expertise with React.js or React Native
• Cloud experience (AWS strongly preferred), including solutions involving AI/ML services, orchestration, and deployment
• Knowledge of MLOps, CI/CD, and containerization (Docker, Kubernetes)
• Experience with data engineering pipelines for ML workflows, handling structured and unstructured data sources
• Exposure to vector databases (Pinecone, FAISS, or equivalent) for AI applications
• Familiarity with LangChain, LangSmith, or similar frameworks for RAG and AI application development
• Demonstrated ability to translate business problems into AI-driven solutions with production-grade architecture

Set Yourself Apart With

• Hands-on with agentic AI systems for autonomous workflows
• Experience integrating AI features into modern digital products (chatbots, copilots, automation tools)
• Understanding of model performance optimization for cost and latency at scale
• Strong knowledge of security, governance, and ethical AI practices
• Experience building real-time AI applications leveraging serverless or microservices architectures

• An inclusive workplace that promotes diversity and collaboration.
• Access to ongoing learning and development opportunities.
• Competitive compensation and benefits package.
• Flexibility to support work-life balance.
• Comprehensive health benefits for you and your family.
• Wellness program and employee assistance.

As part of our dedication to an inclusive and diverse workforce, Publicis Sapient is committed to Equal Employment Opportunity without regard for race, color, national origin, ethnicity, gender, protected veteran status, disability, sexual orientation, gender identity, or religion. We are also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at hiring@publicis.sapient.com

Publicis Sapient is a digital transformation partner helping established organizations get to their future, digitally enabled state, both in the way they work and the way they serve their customers. We help unlock value through a start-up mindset and modern methods, fusing strategy, consulting, and customer experience with agile engineering and problem-solving creativity. United by our core values and our purpose of helping people thrive in the brave pursuit of next, our 20,000+ people in 53 offices around the world combine experience across technology, data sciences, consulting, and customer obsession to accelerate our clients’ businesses through designing the products and services their customers truly value.