Brillio is a rapidly growing digital technology service provider that partners with Fortune 1000 companies to enhance their digital adoption. The Senior Full-Stack Cloud Application Engineer will be responsible for owning and delivering an application platform built on React, AWS CDK, and a multi-service architecture, requiring a blend of frontend and AWS expertise.
Responsibilities:
- Build and maintain complex UI pages in a large-scale React/TypeScript application
- Own feature delivery end-to-end: design, implement, test, deploy
- Author and maintain CDK stacks: VPC configurations, PrivateLink endpoints, IAM roles, Lambda functions, intermediate account patterns
- Deploy infrastructure changes through CI/CD pipelines
- Configure and troubleshoot VPC endpoints, cross-region PrivateLink, and SigV4 request signing
- Implement double-hop Assume Role patterns across AWS accounts
- Maintain an RBAC authorizer Lambda (Java) that governs platform access
- Manage permission matrices and role chains across a multi-account AWS environment
- Write and maintain Playwright E2E tests
- Develop and debug Lambda functions (Node.js for service proxies, Java for auth)
- Manage CI/CD pipeline stages, npm-pretty-much builds
- Execute FAST/security integration testing
Requirements:
- 5+ years of professional experience with React and TypeScript in production applications
- 3+ years of hands-on AWS CDK experience (TypeScript) deploying VPCs, Lambdas, and IAM resources
- Deep understanding of AWS networking: VPC endpoints, PrivateLink, SigV4 signing
- Experience with IAM cross-account role assumption and multi-account AWS patterns
- Proficiency in at least one backend language (Node.js or Java) for Lambda development
- Experience with E2E testing frameworks (Playwright preferred)
- Familiarity with eCommerce domain
- Experience navigating multi-service architectures where a UI proxies through Lambdas to backend services via PrivateLink
- CI/CD pipeline experience with automated test integration