Senior Full Stack Developer (JS, AWS)

Capnexus is a comprehensive services provider. Our team consists of outstanding professionals, highly experienced in designing, building, and supporting retail software. We see ourselves as a build-as-a-service provider who follows a repeatable business pattern that can be applied to a variety of platforms and verticals. Having a culture built on outcomes and delivery at the core of the business, Capstone is providing its customers with a complete suite of services for software development, system analysis, integration, implementation, and support, as well as the option to engage a single team to perform all the services they require. Who You Are and What You'll Do: Capnexus is looking for a highly skilled Senior AWS Full Stack Developer to design, develop, and deliver a cloud-native application for a 12-week AI-powered modernization engagement in the construction industry. You will serve as a hands-on full stack developer building an intelligent subcontractor pre-qualification platform leveraging AWS services including Amazon SES, QuickSight, Lambda, and API Gateway, with a modern frontend and serverless backend. This is an exciting opportunity to work on cutting-edge generative AI solutions that transform manual document review workflows into automated, intelligent processes. Responsibilities: Design and develop the application architecture, UI/UX, and technical requirements during the Discovery & Design phase. Configure and integrate AWS SES for automated email delivery and Amazon QuickSight for executive-facing dashboards. Build and deploy a document upload portal enabling subcontractors to submit insurance certificates, bonding letters, and financial statements. Develop RESTful and serverless APIs using AWS Lambda and Amazon API Gateway to support frontend/backend integration. Create real-time status and risk profiling dashboards in Amazon QuickSight integrated with CMIC ERP data. Integrate AI-powered document validation and exception management workflows drive