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Barclays Logo Barclays · IT - Software Development

Principal engineer applied ai

India, Bengaluru · Job Posted March 26, 2026
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Job Description

Are you looking to redefine customer experience by bending the curve of innovation in one of the most coveted domains, Banking & Financial Services Industry? Join our innovative team to build and deliver elevated customer experiences and streamline business operations with cutting-edge AI-driven solutions. As a Principal Engineer of Applied AI, you will collaborate with multiple high stakeholders, senior leaders, talented engineers, and scientists, leveraging your deep expertise to shape AI/ML strategy on complex technical projects. You will serve as the deep technical expert and hands-on architect responsible for defining technology roadmaps, best practices, and standards that equip LLMs with domain-specific knowledge and execution capabilities.

Job Responsibility

  • Serve as the primary code-level reviewer and hands-on architect for the most complex AI/ML systems and frameworks
  • Define and enforce technology roadmaps, best practices, strategies, and standards for AI/ML adoption across the organization
  • Conduct and guide research on context/prompt engineering techniques to translate successful research into reusable engineering frameworks for the wider team
  • Architect and maintain robust data pipelines and data processing workflows for model training and model tuning, utilizing cloud services for scalability and efficiency
  • Implement and champion MLOps tools and practices, ensuring seamless integration of machine learning models and LLMs into production environments
  • Lead the effort to agentize existing systems (front-end & back-end apps) by incorporating agentic frameworks/stacks and integrating them via A2A, MCP protocol
  • Partner with cross-functional teams to integrate AI/ML solutions into products and services
  • Mentor and coach junior and senior engineers on advanced AI/ML techniques, best practices, and architecture design.

Requirements

  • A Bachelor’s degree (or above) in computer science, engineering, mathematics, or a related discipline
  • 12+ years of experience in Software Engineering, Data Science, or Analytics with 5+ years of experience in AI/ML engineering or related fields
  • Demonstrated experience designing and implementing highly scalable, production-grade AI/ML platforms and systems
  • Deep understanding of Large Language Models (LLMs), LLM training & fine tuning
  • Hands-on experience in GenAI and AgenticAI frameworks such as LangGraph/LangChain, CrewAI, Strands SDK, Google ADK, etc. Familiarity on working with MCP and A2A protocols
  • Expertise in various AI/ML techniques, such as deep learning, natural language processing, reinforcement learning, and large language models
  • Proficiency in Python, R, or other programming languages for data analysis and AI/ML development
  • Experience with DevOps and CI/CD tools and practices, such as Git, Jenkins, Docker, Kubernetes, etc.

Nice to have

  • PhD in computer science, engineering, mathematics, statistics, or a related discipline
  • Experience in establishing and enforcing AI/ML best practices, standards, and ethics
  • Knowledge of banking, financial products and services.

What we offer

  • Competitive holiday allowance
  • Life assurance
  • Private medical care
  • Pension contribution
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