Senior Python Backend Developer (FastAPI, AWS, PostgreSQL)

Position Description:

Position Description
Founded in 1976 CGI is among the largest independent IT and business consulting services firms in the world. With 94000 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 .

Job Title: Python Pyspark and AWS Developer
Position: Senior Software Engineer
Experience: 5- 8 Years
Category: Software Development/ Engineering
Shift: General
Main location: Hyderabad Bangalore Chennai
Position ID: J0626-2028
#LI-SP40
Employment Type: Full Time
Education Qualification: Bachelors degree in Computer Science or related field or higher with minimum 5 years of relevant experience.

We are looking for an experienced Python Backend Developer with strong expertise in FastAPI PostgreSQL and AWS cloud services. The ideal candidate should have experience designing and developing scalable secure and high-performance RESTful APIs for enterprise applications. The role requires hands-on experience with asynchronous programming database optimization cloud-native architectures and production support.

Your future duties and responsibilities:

Design develop and maintain scalable backend applications using Python and FastAPI.
Build production-grade REST APIs following clean architecture and best coding practices.
Develop reusable and maintainable code using Pydantic models dependency injection and asynchronous programming.
Design and implement authentication and authorization mechanisms using JWT/OAuth2.
Develop middleware for logging monitoring request validation exception handling and security.
Optimize application performance through asynchronous processing background tasks caching and rate limiting.
Design develop and optimize PostgreSQL database schemas for high-performance applications.
Write efficient SQL queries using joins CTEs window functions and query optimization techniques.
Create and maintain database migrations using Alembic.
Work with SQLAlchemy (preferably Async SQLAlchemy) for ORM implementation.
Manage transactions connection pooling and database performance tuning.
Build event-driven solutions using AWS services such as SQS SNS Lambda and Step Functions.
Develop ETL/data processing solutions using AWS Glue where applicable.
Configure application monitoring logging and alerting using Amazon CloudWatch.
Participate in architecture discussions code reviews production deployments and troubleshooting.
Collaborate with cross-functional teams following Agile methodologies.

Required qualifications to be successful in this role:

Must-Have Skills:
Python 3.x
FastAPI
AsyncIO / Async Programming
Pydantic
SQLAlchemy (Async preferred)
Alembic
REST API Development
Authentication & Security
JWT Authentication
OAuth2
API Security Best Practices
Role-Based Access Control (RBAC)
Database
PostgreSQL
Database Schema Design
Indexing Strategies
Query Optimization
EXPLAIN ANALYZE
Common Table Expressions (CTEs)
Window Functions
Transaction Management
Connection Pooling
AWS Cloud
AWS Lambda
Amazon SQS
Amazon SNS
AWS Step Functions
AWS Glue
Amazon CloudWatch
IAM (preferred)
Additional Skills
Git
Docker
CI/CD Pipelines
Unit Testing (PyTest)
API Documentation (OpenAPI/Swagger)
Agile/Scrum
Preferred Qualifications
Experience designing scalable microservices.
Knowledge of distributed systems and event-driven architectures.
Experience with caching technologies such as Redis.
Understanding of API rate limiting and performance optimization.
Experience deploying applications on AWS using Infrastructure as Code (Terraform/CloudFormation is a plus).
Exposure to Kubernetes/EKS is an added advantage.
Required Competencies
Strong problem-solving and analytical skills.
Excellent debugging and performance tuning capabilities.
Ability to design scalable and maintainable enterprise solutions.
Good communication and stakeholder management skills.
Experience working in Agile development environments.

Skills:

• Agile
• AWS Glue
• AWS Lambda
• Communication
• Python

What you can expect from us:

Together as owners lets turn meaningful insights into action.

Life at CGI is rooted in ownership teamwork respect and belonging. Here youll reach your full potential because

You are invited to be an owner from day 1 as we work together to bring our Dream to life. Thats why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our companys strategy and direction.

Your work creates value. Youll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas embrace new opportunities and benefit from expansive industry and technology expertise.

Youll shape your career by joining a company built to grow and last. Youll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

That same commitment to fairness extends to how we use technology. To support our recruitment team AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.

Come join our teamone of the largest IT and business consulting services firms in the world.