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Senior AI Engineer-LLM & Generative AI

  • 5 years
  • 7 years
  • Full Time
  • 2
  • Remote

Job Description

We are seeking a Senior AI Engineer with practical experience in LLMs, LangChain or similar frameworks, and Retrieval-Augmented Generation (RAG) systems. In this role, you will help design and deploy intelligent, secure, and scalable AI solutions that enhance Zscaler’s products and internal automation tools.


The position emphasizes AI backend development and orchestration using Python, cloud deployment (AWS preferred, GCP optional), and integration of LLM-based services with light front-end development for chat interfaces, copilots, and dashboards.

Qualifications
Must-Have
●
Solid working experience with Python for AI service development, API integration, and data processing.
●
Practical hands-on experience with LangChain, RAG pipelines, or similar developer frameworks.
●
Familiarity with LLM integration, prompt design, and embedding-based retrieval.
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Experience deploying applications on AWS (preferred) or GCP, particularly with EKS, ECS, or Cloud Run.
●
Proficiency with Docker, Kubernetes, and cloud-native service orchestration.
●
Experience building RESTful or GraphQL APIs for AI and data services.
●
Understanding of cloud security, scalability, and performance optimization
principles.
Good-to-Have
●
Experience developing conversational UIs, copilots, or AI-enabled dashboards (e.g., Slack apps, chat widgets).
●
Familiarity with React, Next.js, or TypeScript for front-end feature integration.
●
Exposure to Hugging Face Transformers, LlamaIndex, or LangGraph ecosystems.
●
Knowledge of vector databases and data pipeline management.
●
Understanding of compliance, privacy, and responsible AI practices in enterprise environments.
Education & Experience
●
Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
●
Typically 4–8 years of experience in software or AI engineering, including 2+ years of hands-on experience with LLMs, LangChain, or RAG systems.

Responsibilities

Responsibilities
●
AI Solution Development: Build and maintain production-grade AI systems using
LLMs, LangChain, and RAG pipelines to solve enterprise-scale problems.
●
Model Integration: Implement, fine-tune, and evaluate LLMs using frameworks such as
LangChain, LlamaIndex, Hugging Face, or OpenAI API.
●
Backend & API Engineering:
○
Develop scalable Python microservices and APIs for inference and knowledge retrieval.
○
Deploy and operate services on AWS (preferred) or GCP using EKS, ECS, or
Cloud Run.
○
Implement observability, monitoring, and autoscaling for production workloads.
● Retrieval-Augmented Generation (RAG):
○
Design and optimize retrieval workflows using vector databases like FAISS, Pinecone, or Milvus.
○
Integrate both structured and unstructured data into LLM pipelines for grounded responses.
● Front-End Integration:
○
Collaborate with UI teams to integrate AI experiences into dashboards or chat UIs using React, Next.js, or TypeScript.
○
Ensure seamless communication between front-end components and AI APIs.
● Cloud & DevOps:
○
Containerize and deploy using Docker and Kubernetes.
○
Implement CI/CD pipelines with tools like Jenkins, GitHub Actions, or Terraform.
●
Cross-Functional Collaboration: Work closely with product, data science, and platform teams to deliver robust, secure, and impactful AI services.
●
Continuous Innovation: Stay current with LLM, RAG, and multi-agent system advancements and drive their adoption across products.

Shift Time

2-11 PM IST

Minimum Qualifications

B.E/B.Tech IT/Comp.

Preferred Qualifications

B.E/B.Tech IT/Comp.

Join the TechWize Team

Shape the future of IT

Are you a passionate techwize looking to push the boundaries of IT?

Do you thrive in a collaborative environment, solving complex problems with cutting-edge solutions?

If you answered yes, then TechWize is the place for you! We're seeking talented individuals to join our dynamic team and shape the future of IT.

At TechWize, you'll have the opportunity to work alongside industry experts on challenging projects, using the latest technologies to deliver innovative solutions for our clients. We offer a fast-paced environment that fosters continuous learning and professional growth.

Apply now and embark on an exciting journey with TechWize! We look forward to hearing from you.

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