Gad Ishimwe

Full Stack Developer @IntegrityNext

Munich, DE

Developed core APIs for authentication, RBAC user and project management, advanced filtering, andpagination using Nest.js, GraphQL, and Prisma for a solar panels installation platform — accelerating stakeholder project timelines from months to weeks.• Led the front-tend development by building 90% of the components using React, TypeScript, Sass, and Storybook/Chromatic integrated with CI workflows for isolated UI review and testing — increasing team efficiency by 50%.• Built features using Redux Toolkit and RTK Query for state management, API integration, and caching — improving data fetching speed and responsiveness.• Implemented secure document uploads and downloads with AWS CDK for creating S3 pre-signed URLs — ensuring controlled access and data protection.• Monitored Sentry issues and AWS CloudWatch Logs; debugged and deployed hot-fixes directly to production via AWS CLI — resolving critical issues and ensuring application stability with minimal downtime.• Migrated legacy construction ordering platform from CRA to Vite, Typescript and Tailwind, improving build speed, reliability and developer experience. Introduced new design system, Added Sentry source maps and release versioning to enable precise stack traces in production.• Created a robust drag-and-drop UI for product/category reordering and bulk actions with backend sync — enabling faster catalog management for platform managers.• Developed custom CMS blocks/components and email templates for a Shopware e-commerce site and refined product listings, filtering, order history, address management, and SEO using Javascript, Vue.js and PHP/Symfony — enabling the company’s first online sales channel and increasing customer engagement and conversions.