Senior AWS Cloud Application Engineer (Python)

ECCO Select is seeking a Senior AWS Cloud Application Engineer to support the development and modernization of enterprise applications within a secure AWS environment. This is a hands-on engineering role focused on building Python-based microservices, serverless applications, RESTful APIs, automated workflows, and cloud infrastructure using AWS CDK., * Design, develop, test, and maintain production-grade Python applications and microservices.

• Develop and manage AWS infrastructure using AWS Cloud Development Kit (CDK) and Infrastructure as Code practices.
• Design and implement complex business and application workflows using AWS Step Functions.
• Develop serverless applications utilizing AWS Lambda and related AWS services.
• Design, build, and maintain RESTful APIs, including appropriate versioning, error handling, and integration patterns.
• Build and support containerized applications using Docker.
• Implement application and infrastructure logging, monitoring, and audit capabilities using Amazon CloudWatch and AWS CloudTrail.
• Develop and maintain CI/CD pipelines supporting cloud application deployments across multiple environments.
• Write and maintain unit and integration tests and perform code remediation as needed.
• Conduct code reviews with an emphasis on maintainability, performance, security, and software engineering best practices.
• Utilize Git-based development workflows, including branching, merge requests, and peer reviews.
• Contribute to application and cloud architecture decisions and maintain supporting technical documentation.
• Collaborate with business stakeholders, architects, developers, and other technical teams to translate business requirements into effective technical solutions.
• Participate in an Agile SDLC environment, including iterative development, testing, deployment, and continuous improvement activities.

• Bachelor’s degree in Computer Science, Information Technology, or a related discipline, or equivalent relevant work experience.
• 7+ years of software development experience, including experience working within formal SDLC and Agile development environments.
• Strong, production-level Python development experience, including modern Python frameworks and testing libraries.
• Hands-on experience developing AWS infrastructure using AWS CDK.
• Experience developing cloud-based or serverless applications using AWS Lambda and AWS Step Functions.
• Hands-on experience creating and managing CI/CD pipelines for cloud applications.
• Strong understanding of RESTful API design, including service interfaces, versioning, integrations, and error handling.
• Experience with Git-based version control, including branching strategies, merge requests, and code reviews.
• Experience with core AWS technologies including DynamoDB, S3, API Gateway, CloudWatch, and CloudTrail.
• Experience developing or deploying containerized applications using Docker.
• Experience with Infrastructure as Code concepts and tools, including AWS CDK and Terraform.
• U.S. citizenship is required.
• Ability to work full-time onsite in Washington, DC.

Preferred Qualifications

• Front-end development experience using Angular or React with TypeScript.
• Experience with additional AWS services such as SNS, SQS, Athena, AWS Glue, and Elastic Load Balancing.
• Experience supporting applications deployed across multiple cloud environments.
• Experience developing within GitLab and GitLab-based CI/CD environments.
• Strong technical documentation, troubleshooting, and cross-functional collaboration skills.

AI-Assisted Development Experience - Plus

Experience incorporating AI-assisted development tools, such as Claude Code or comparable coding assistants, into the software development lifecycle is a plus. Relevant experience may include:

• Code review and optimization.
• Documentation generation.
• Debugging and troubleshooting.
• Unit and integration test case development.
• Critically reviewing, validating, and adapting AI-generated code before incorporating it into production solutions.