Senior Full Stack Python Developer

We are seeking a Senior Full Stack Python Developer to design build and scale cloud-native applications in a highly distributed AWS environment. This role involves hands-on development across both backend and frontend layers with a strong emphasis on Python-based services modern UI frameworks and resilient system design.
We partner with 15 of the top 20 banks globally and our top 10 banking clients have worked with us for an average of 26 years!.

This role is located at a client site in either Reston VA. A hybrid working model is acceptable.

We are seeking a Senior Full Stack Python Developer to design build and scale cloud-native applications in a highly distributed AWS environment. This role involves hands-on development across both backend and frontend layers with a strong emphasis on Python-based services modern UI frameworks and resilient system design.
The ideal candidate will take ownership of end-to-end deliveryfrom architecture through production deploymentwhile ensuring performance scalability and reliability. Youll work closely with cross-functional teams to build robust APIs optimize distributed systems and integrate AI-driven capabilities including LLM-based solutions into business applications.
This is a highly collaborative role suited for engineers who are comfortable operating in fast-paced Agile environments and who bring a strong foundation in clean coding system design and cloud engineering best practices.

. 8 years of experience building and deploying production-grade applications end-to-end
. Advanced proficiency in Python and frameworks like FastAPI or Flask
. Experience developing full-stack applications using modern frontend frameworks (React Angular or Vue)
. Solid understanding of REST APIs microservices and distributed system design
. Hands-on experience with AWS services (Lambda ECS EC2 RDS S3 API Gateway DynamoDB etc.)
. Experience designing cloud-native architectures with a focus on scalability and resilience
. Familiarity with containerization (Docker) and orchestration tools like Kubernetes
. Experience working with both relational and NoSQL databases (e.g. PostgreSQL DynamoDB)
. Strong grasp of CI/CD practices and tools such as Git and GitLab
. Experience with Infrastructure as Code (Terraform or similar tools)
. Understanding of SDLC best practices including testing code reviews and version control
. Ability to design and optimize systems for performance reliability and scalability
. Experience working with large datasets and formats like JSON XML and Parquet
. Exposure to AI/ML integrations particularly working with LLMs in application development
. Familiarity with AI-assisted development tools (e.g. GitHub Copilot)
. Strong problem-solving skills and ability to work effectively in Agile teams

Education:
Bachelors degree in Computer Science Information Systems or a related field.

Other Information:
CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set level experience relevant training and licensure and certifications. To support the ability to reward for merit-based performance CGI typically does not hire individuals at or near the top of the range for their role. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $99200.00 - $154300.00.
CGIs benefits are offered to eligible professionals on their first day of employment to include: . Competitive compensation . Comprehensive insurance options . Matching contributions through the 401(k) plan and the share purchase plan . Paid time off for vacation holidays and sick time . Paid parental leave .Learning opportunities and tuition assistance . Wellness and Well-being program

• Amazon Web Services Cloud
• Angular
• Docker
• Flask
• Full Stack Development
• Full Stack Development
• Jenkins
• Postgre SQL
• Python
• Terraform

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.

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

Qualified applicants will receive consideration for employment without regard to their race ethnicity ancestry color sex religion creed age national origin citizenship status disability pregnancy medical condition military and veteran status marital status sexual orientation or perceived sexual orientation gender gender identity and gender expression familial status or responsibilities reproductive health decisions political affiliation genetic information height weight or any other legally protected status or characteristics to the extent required by applicable federal state and/or local laws where we do business.

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All CGI offers of employment in the U.S. are contingent upon the ability to successfully complete a background investigation. Background investigation components can vary dependent upon specific assignment and/or level of US government security clearance held. Dependent upon role and/or federal government security clearance requirements and in accordance with applicable laws some background investigations may include a credit check. CGI will consider for employment qualified applicants with arrests and conviction records in accordance with all local regulations and ordinances.

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