Muhammad Mairaj

● Built NestJS monorepo (Turborepo) for fintech platform combining on-chain USDC (Base) with Plaid/Stripe banking ● Designed PostgreSQL schemas with Drizzle ORM; managed complex migrations across dev/staging/production environments ● Implemented deBridge token swap flows (same-chain + cross-chain) with idempotency, gas sponsorship via Privy ● Built unified crypto transaction tracking across deposits, withdrawals, and swaps with source/destination tagging ● Developed secure single-use payment link system with atomic consumption and rate-limited public endpoints ● Integrated blockchain infrastructure: ethers.js contract calls, tx receipt polling, multi-RPC fallback providers ● Built admin CRUD APIs with S3 uploads, RBAC guards, Swagger docs, and input sanitization.

Building the next big crypto fintech!!!

NayaPay is a fintech company under the prestigious Lakson Group, focusing on innovative financial solutions. - Developed an Onboarding module in React 18 for multiple user types, including individuals and merchants, ensuring a seamless registration process. - Translated complex Figma designs into pixel-perfect, responsive layouts using Material UI, enhancing user experience and accessibility. - Optimized error-handling mechanisms and custom Formik components to improve system resilience and scalability. - Collaborated closely with the product and QA teams to deliver a smooth user experience in NayaPay ARC. - Designed and implemented a secure payment link system using Formik v2.2, custom React hooks, and TypeScript - Improved code reusability by 40% through the development of custom components for input elements using FormIk and Material UI. - Collaborated closely with business stakeholders in an Agile/Extreme Programming environment to define user stories, estimate tasks, and plan sprints.

- Maintenance: Maintained website's hosting and managed to keep it online and up-to-date - Scraping: Scraped thousands of apps from third-party sources, and stored them in an SQL database - Troubleshooting: Maintained and fixed hundreds of bugs of a PHP-based website - Migrations: Migrated a database of 50K records from a PHP site to a custom Django CMS - Database: Migrated a database of 8000+ posts from WP to custom Django CMS - Automation: Wrote automated Selenium-based scraping scripts

– SEO: Leveraged the power of SEO, and ranked keywords resulting in an 18% revenue increase – Maintenance: Maintained the web experience through various outages

- Strong profiles: Had quite strong profiles at Fiverr and Envato Studio - Offerings: Worked on hundreds of websites, provided services like Page Speed Optimization, Technical SEO, WordPress troubleshooting, database migrations and recovered hacked websites - Experience: Worked on all range of websites from static websites to highly functional eCommerce/membership based websites. - All-rounder: Extensive hands-on experience of SQL, PHP, technical skills and troubleshooting on LAMP stack.