Python AI

Position Description

Founded in 1976, CGI is among the largest independent IT and business consulting services firms in the world. With 94,000 consultants and professionals across the globe, CGI delivers an end-to-end portfolio of capabilities, from strategic IT and business consulting to systems integration, managed IT and business process services and intellectual property solutions. CGI works with clients through a local relationship model complemented by a global delivery network that helps clients digitally transform their organizations and accelerate results. CGI Fiscal 2024 reported revenue is CA$14.68 billion and CGI shares are listed on the TSX (GIB.A) and the NYSE (GIB). Learn more at cgi.com.

Job Title: Senior Python Engineer – AI & AWS

Experience: 5 to 7 Years

Location: Hyderabad / Chennai / Bangalore

Position ID : J0126-1609

Position Description: We are looking for an experienced Senior Python Engineer with strong expertise in backend development, data processing, cloud services, and AI/LLM integrations. The ideal candidate will have hands-on experience in building scalable APIs, working with AWS services, and developing AI-driven applications using modern frameworks and large language models.

Your future duties and responsibilities

Design, develop, and maintain Python-based applications using object-oriented programming principles and best practices.

Build and optimize RESTful APIs using FastAPI for high-performance backend services.

Work extensively with data structures (lists, tuples, dictionaries, sets) for efficient data processing.

Perform data analysis and manipulation using Pandas, NumPy, and DataFrames.

Implement file handling solutions for PDF, CSV, Excel, Word, and other structured/unstructured formats.

Develop data visualization components using Matplotlib for reporting and insights.

Integrate AWS services such as S3, Aurora PostgreSQL, and Lambda to build scalable and serverless solutions.

Use Boto3 for AWS service automation and cloud resource management.

Design and implement AI-powered features leveraging OpenAI APIs and large language models.

Build intelligent workflows using LangChain, LangGraph, and Pydantic AI.

Integrate and fine-tune LLMs such as ChatGPT-5, Claude Sonnet 4.5, and AWS Nova for enterprise use cases.

Ensure application security, performance optimization, logging, and monitoring.

Collaborate with cross-functional teams including product, data, and cloud architects.

Participate in code reviews, mentoring junior engineers, and enforcing coding standards.

Required Qualifications To Be Successful In This Role Must to have skills:

Strong proficiency in Python with deep understanding of OOP concepts.

Hands-on experience with FastAPI for backend/API development.

Solid knowledge of Pandas, NumPy, and DataFrames.

Experience in file processing (PDF, CSV, Excel, Word).

Working knowledge of Matplotlib for data visualization.

Experience with AWS services:

Amazon S3

Aurora PostgreSQL

AWS Lambda

Proficiency in Boto3 for AWS automation.

Hands-on experience with AI/LLM frameworks:

LangChain

LangGraph

Pydantic AI

Practical experience working with LLMs such as:

ChatGPT-5

Claude Sonnet 4.5

AWS Nova

Good to Have

Experience in serverless architectures.

Knowledge of prompt engineering and LLM orchestration.

Familiarity with CI/CD pipelines and DevOps practices.

Experience in productionizing AI solutions.

Exposure to microservices architecture.

Soft Skills

Strong problem-solving and analytical skills.

Excellent communication and collaboration abilities.

Ability to work independently and mentor junior team members.

Adaptability to fast-changing AI and cloud technologies.

CGI is an equal opportunity employer. In addition, CGI is committed to providing accommodation for people with disabilities in accordance with provincial legislation. Please let us know if you require reasonable accommodation due to a disability during any aspect of the recruitment process and we will work with you to address your needs.

Together, as owners, let’s turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential…