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NTT DATA Logo NTT DATA · IT - Software Development

Senior AI Engineer with Python

Romania, Cluj · Job Posted March 26, 2026
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Job Description

The Senior AI Engineer role at NTT DATA involves developing an AI Retrieval-Augmented Generation platform. Candidates should have a strong background in Python, FastAPI, and cloud infrastructure management. Responsibilities include designing scalable backend services, developing APIs, and maintaining CI/CD pipelines. A Bachelor’s or Master’s degree in Computer Science or Engineering is required, along with a minimum of 5 years of experience in backend development.

Job Responsibility

  • Design and implement scalable backend services for a RAG-based system
  • Design and develop APIs using FastAPI
  • Create and maintain CI/CD pipelines
  • Contribute to vector storage design and chunking strategies
  • Ensure testing, reliability, and production readiness
  • Proactively propose backend and infrastructure improvements

Requirements

  • Bachelor’s or Master’s degree in Computer Science, Engineering, or equivalent experience
  • Minimum 5 years of experience developing microservices
  • 5+ years of backend Python development
  • 2+ years building APIs with FastAPI
  • 2+ years designing and maintaining CI/CD pipelines
  • 2+ years managing cloud infrastructure (IAM, databases, compute, networking)
  • Proven experience deploying and maintaining web application backends in production
  • Ability to work autonomously and take full technical ownership
  • Testing experience (unit, integration, performance)
  • Observability (logging, tracing, metrics) – Grafana, Prometheus, Loki
  • Excellent command of both spoken and written English

Nice to have

  • Experience with Generative AI and LLM integration
  • Experience with vector databases (e.g., Pinecone, Weaviate, OpenSearch, pgvector)
  • Understanding of chunking and retrieval strategies
  • AWS production experience
  • Performance optimization in distributed systems
  • Security best practices for cloud and API-based systems
  • Understand of distributed container based deployment
  • A proactive and participatory mindset

What we offer

  • Smooth integration and a supportive mentor
  • Pick your working style: choose from Remote, Hybrid or Office work opportunities
  • Projects have different working hours to suit your needs
  • Sponsored certifications, trainings and top e-learning platforms
  • Private Health Insurance
  • Individual coaching sessions or accredited Coaching School
  • Epic parties or themed events
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