Full Stack Developer

Job Title:Software Development Engineer (SDE – L5) Location:Irvine, CA or (Hybrid – 3 days onsite / 2 days remote) Type:W2 Only Duration:12+ Months Contract (High possibility of extension)Must be an ex-Amazon employeeJob Summary We are seeking an experienced L5 Software Development Engineer with prior experience at Amazon and strong expertise in Amazon Builder Tools. The selected candidate will join a high-impact TGS project team working on platform enhancements and scalable systems supporting billions of inventory items and thousands of vendors. This is a full-stack role involving backend services, frontend development, AWS infrastructure, and DevOps practices.Key Responsibilities Design, develop, and maintain scalable full-stack applications Build high-quality, maintainable code aligned with Amazon engineering standards Develop and integrate APIs and event-driven architectures Work with AWS services for cloud-native development Collaborate with cross-functional teams for feature delivery and enhancements Participate in testing, debugging, deployment, and DevOps processes Contribute to AI integration and modern engineering practicesRequired Qualifications 7–10+ years of software development experience Mandatory: Former Amazon FTE or 12+ months contractor at Amazon Minimum 1+ year experience with Amazon Builder Tools Strong backend experience with Java, Kotlin, Python, or similar 3+ years frontend experience with React.js or similar Hands-on experience with AWS CDK and cloud-native development Experience with AWS services: Lambda, Step Functions, SQS, SNS, DynamoDB, RDS, S3, CloudWatch, OpenSearch, Redshift Strong understanding of API design, distributed systems, and event-driven architecture Experience across full SDLC (design, development, testing, deployment)Preferred Skills Experience with Node.js, TypeScript, and JavaScript Exposure to AI integration and modern DevOps practices Strong debugging and performance optimization skills