Full Time Full Stack Python Developer Jobs in Washington, DC

Senior Full Stack Python Developer
Category: Software Development/ Engineering
Main location: United States, Virginia, Reston
Position ID:J0526-0227
Employment Type: Full Time
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Position Description:
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.
Your future duties and responsibilities:
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 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.
Required qualifications to be successful in this role:
. 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:
Bachelor's 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 $99,200.00 - $154,300.00.
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
Skills:

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

What you can expect from us:
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 because...
You are invited to be an owner from day 1 as we work together to bring our Dream to life. That's why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company's strategy and direction.
Your work creates value. You'll 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.
You'll shape your career by joining a company built to grow and last. You'll 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 team-one 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.
CGI provides reasonable accommodations to qualified individuals with disabilities. If you need an accommodation to apply for a job in the U.S., please email the CGI U.S. Employment Compliance mailbox at US_Employment_Compliance@cgi.com. You will need to reference the Position ID of the position in which you are interested. Your message will be routed to the appropriate recruiter who will assist you. Please note, this email address is only to be used for those individuals who need an accommodation to apply for a job. Emails for any other reason or those that do not include a Position ID will not be returned.
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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.
CGI will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with CGI's legal duty to furnish information.