Sr Python AWS developer
W2 Only (NO C2C)
Onsite - Malvern, PA
10+ years of professional software development experience, with a focus on backend, integration, or data-intensive systems. Demonstrated experience designing and building system-to-system data synchronization or migration solutions between legacy and modern platforms. Strong Python/golang development with proficiency in AWS cloud services, such as Lambda, S3, DynamoDB/RDS, Step Functions, SNS/SQS, API Gateway, or equivalent managed services. Hands-on experience developing APIs, batch processing jobs, and event-driven architectures. Solid understanding of data modeling, data transformation, reconciliation, and validation techniques for financial or account-based data. Experience working with relational and NoSQL databases, including writing performant queries and handling large data volumes. Knowledge of security best practices, including data encryption, IAM, secure data transfer, and audit/logging controls. Familiarity with CI/CD pipelines, source control (Git), automated testing, and code review practices. Experience working in Agile/Scrum environments, collaborating closely with product owners, architects, and operations teams. Strong troubleshooting and analytical skills, with the ability to identify root causes of data discrepancies and system failures. Excellent written and verbal communication skills, including the ability to produce clear technical documentation.
Preferred / Nice to Have Prior experience in Transfer Agent, financial services, or regulated environments. Exposure to legacy mainframe or monolithic systems and modernization
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