Senior .NET/AWS Software Engineer

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Compensation: 140000 USD – 160000 USD / Year

***We are unable to work with 3rd-party or corp-to-corp candidates for this position***

Overview:
Our client will be hiring a Senior Backend Software engineer with C# and AWS expertise.
This role reports to an Engineering Manager and has no direct reports.

100% REMOTE expectation, US only.

Responsibilities:

• Develops primarily in C#/.NET, delivering APIs, backend services, and high-velocity data processing components.
• Develop and maintain SQL Server databases, T-SQL code, and stored procedures.
• Designs, builds, and supports distributed, event-driven systems running on AWS using (and not limited to) Lambda, DynamoDB, S3, EC2, SNS, SQS.
• Leads efforts to re-architect and refactor legacy applications into modular, cloud native microservices following AWS and industry best practices.
• Collaborates with Product, QA, and other engineers to turn user stories into scalable, secure, and observable production features.
• Owns end-to-end performance, scalability, and reliability of services — from design through deployment and monitoring.
• Integrates security-first development practices (IAM least privilege, encryption, secrets management, secure API design).
• Participates in design reviews, code reviews, and post-incident analysis to improve reliability and maintainability.
• Continuously evolves engineering standards, CI/CD pipelines, and testing practices in a fast-moving Agile environment.
• Contributes to related initiatives and continuous improvements as business needs evolve.

REQUIREMENTS

• 8 years professional experience developing in C#/.NET and SQL, with emphasis on backend systems and data processing.
• Strong AWS expertise, particularly in serverless and managed-service architectures (Lambda, DynamoDB, S3, EventBridge).
• Demonstrated experience designing and operating RESTful APIs and backend services at scale.
• Solid understanding of data modeling across SQL and NoSQL systems (SQL Server, DynamoDB, S3).
• Knowledge of secure development, incident response, and compliance (SOC2, GDPR, privacy standards) preferred.
• Proven ability to ship, maintain, and support production services as part of a small, high-performing team.

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