Senior AWS Python Developer

CGI•Lafayette, LA

About The Position

CGI is seeking a Senior AWS Python Developer with at least five years of Python development experience and experience building AWS-based applications or data-processing solutions. The role involves building and supporting Python services, REST APIs, and data-processing solutions in a financial services environment. The developer owns delivery across an assigned feature or service, with responsibility for reliability, performance, security, and cost efficiency. The position is based in Lafayette, Louisiana; Knoxville, Tennessee; or Birmingham, Alabama. The role includes implementing reusable components, improving SQL and application performance, and supporting infrastructure automation, CI/CD, monitoring, and production releases. The developer also investigates complex issues across services, reviews code, mentors other developers, and works with product and engineering teams to coordinate delivery priorities and risks.

Requirements

At least 5 years of experience developing Python applications, REST APIs, microservices, or data-processing solutions.
Strong testing, logging, debugging, and performance-optimization skills.
Hands-on AWS experience across compute, storage, databases, messaging, and orchestration, including services such as Lambda, ECS, S3, RDS, DynamoDB, Step Functions, EventBridge, SNS, and SQS.
Proficiency in SQL optimization and building reusable data-processing components.
Experience delivering secure, scalable services through infrastructure as code, automated deployments, monitoring, and release practices.
Ability to investigate complex production issues, lead root-cause analysis, and implement lasting improvements to reliability, performance, and operational efficiency.
Experience owning feature delivery, reviewing code, mentoring developers, documenting technical decisions, and coordinating with product and engineering stakeholders.
Bachelor’s degree in Computer Science, Information Systems, or a related field.

Nice To Haves

Familiarity with Pandas, PySpark, Boto3, EMR, Athena, or MWAA.
Familiarity with CloudFormation, GitLab CI/CD, and Docker.

Responsibilities

Build and support Python services, REST APIs, and data-processing solutions in a financial services environment.
Own delivery across an assigned feature or service, including reliability, performance, security, and cost efficiency.
Implement reusable components and improve SQL and application performance.
Support infrastructure automation, CI/CD, monitoring, and production releases.
Resolve complex issues across services and lead root-cause analysis.
Review code and mentor developers.
Document technical decisions and coordinate delivery priorities and risks with product and engineering stakeholders.