Senior Full Stack Python Developer

Senior Full Stack Python Developer

Category: Software Development/ Engineering

Main location: United States, Virginia, Reston

Position : J

Employment Type: Full Time

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.

The ideal candidate will take ownership of end-to-end delivery—from architecture through production deployment—while ensuring performance, scalability, and reliability. You’ll 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, Dynamo
  
  DB, 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 No
  
  SQL databases (e.g., Postgre
  
  SQL, Dynamo
  
  DB)
• Strong grasp of CI/CD practices and tools such as Git and Git Lab
• 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., Git Hub Copilot)
• Strong problem-solving skills and ability to work effectively in Agile teams

Bachelor’s degree in Computer Science, Information Systems, or a related field.

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 $99,200.00 - $.

CGI’s 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
• Jenkins
• Node.
  
  Js
• Postgre SQL
• Python
• Terraform

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