Senior Python Developer

Position Description

CGI has an immediate need for a Senior Python Developer to join our team. This is an exciting opportunity to work in a fast‑paced team environment supporting one of the largest customers. We take an innovative approach to supporting our client, working side‑by‑side in an agile environment using emerging technologies.

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 position is based in Reston, VA, with an onsite requirement of at least three days per week (Monday–Wednesday).

We are seeking a Senior Python Developer to support building and enhancing a critical data pipeline used to manage security findings across the organization. This role is a backfill position for an approved engagement and will play a key part in improving automation, efficiency, and data flow across multiple downstream teams. In this role, you will design, develop, and maintain scalable Python‑based data pipelines that ingest vulnerability scan data, contextualize findings, generate remediation tickets, and feed updates back into the system.

You will work extensively with big data technologies and AWS services, collaborating closely with a team of experienced developers and technical leads in a highly collaborative environment.

• 10+ years of hands‑on Python development experience, with a focus on large‑scale or data‑intensive applications
• 5+ years working with AWS, big data platforms, and data pipeline architectures
• Strong experience designing and building data pipelines for ingestion, transformation, and downstream processing
• Solid background in big data technologies, including Hadoop, Spark, PySpark, and Hive
• Hands‑on experience working in AWS environments, particularly with services such as EMR and other managed data services
• Experience implementing end‑to‑end automation workflows using AWS‑native tools
• Strong SQL skills and experience working with APIs for data integration
• Practical experience with CI/CD pipelines and Dev Ops practices
• Working knowledge of Git Lab and infrastructure‑as‑code tools such as Terraform
• Strong analytical and problem‑solving skills, with the ability to troubleshoot complex data and pipeline issues
• Ability to collaborate effectively within a development team and across partner teams in a matrixed organization

• Exposure to AI concepts or applied AI use cases, with the ability to provide technical input or guidance
• Experience supporting vulnerability management or security‑related platforms
• Background in financial services, mortgage, or regulated enterprise environments

Bachelor’s degree in Computer Science, Engineering, 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 $95,800.00 - $.

• 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 programs

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 one 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…