Python/Java, AWS, Backend/Frontend, REST APIs, JSON, AI
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-Have Skills:
• Over 4+ years of experience in API development (FastAPI is a plus) with Python and AWS, including:
• Knowledge and experience with React.js for frontend development is a plus.
• Experience with containerization and orchestration utilizing Docker and Kubernetes (EKS/ECS).
• Hands-on experience with PySpark for distributed data processing.
• Hands-on experience with AWS services such as API Gateway, S3, DynamoDB, RDS(PostgreSQL), Elasticache, SQS, SNS, and Lambda.
• Strong expertise in Infrastructure as Code (IaC) using Terraform.
• Good experience with SQL and NoSQL(MongoDB/MongoDB Atlas).
• Understanding of event-driven and microservices architecture.
• Familiarity with DevOps practices and CI/CD pipelines.
• Robust problem-solving and debugging skills.
• Excellent communication and collaboration skills, effectively engaging with team members and stakeholders.
• Experience with Agile methodologies.
Good-to-Have Skills:
• Experience with IBM Spectrum Conductor is an added advantage.
• Python utilities like interacting with FLASK API, Sharepoint API is an added advantage.
#LI-SP40
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.
Skills:
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