Full-stack development using:• Frontend: React, Next.js, Tailwind CSS.• Backend: Node.js, TypeScript, Express, TRPC, Prisma.• Implemented user authentication with SuperTokens.• Integrated Elasticsearch for booking filter.• Ensured data integrity with Zod validation on both front- and back-end.• Wrote unit tests with Vitest.DevOps practices:• Practiced CI process with Git and GitHub for code merging• Managed database migrations using Prisma to modify data structures without compromising existing data• Utilized AWS services for application functionality:• Lambda• Simple Notification Service (SNS)• EventBridge• CloudWatch• CloudWatch Dashboards and Alarms• Deployed infrastructure on AWS using Terraform and Terraform CloudTest Automation:• Performed end-to-end (E2E) testing with Cypress for automated test suites• Developed GitHub Action to selectively run test suitesResearch and Development (R&D):• Conducted research on existing rule engines and customer-scoring engines• Developed a proof-of-concept (POC) using Python and a business rule engine to score customers based on payment detailsTechnical Skills:• Programming Languages: Node.js, TypeScript, JavaScript, Python• Frameworks: React, Next.js, Express• Databases: PostgreSQL, Elasticsearch• DevOps: Git, GitHub, Docker, Terraform, AWS• Project Management: Jira• Testing: Vitest, Cypress• Additional Tools: npm, yarn, nvm, Vs-Code, DBeaver