Asrar M.

Senior Full Stack Developer with 10+ years of experience building scalable web applications, SaaS platforms, and payment systems. I work across the full stack React, Angular, and Next.js on the frontend, Node.js, Express, NestJS, and GraphQL on the backend deployed on AWS and GCP. Recent and past work includes: - A multi-tenant SaaS campaign platform handling voucher distribution and cashback management for enterprise clients, where I designed the database architecture and led the development team - A payment middleware system for e-commerce, managing merchant wallets, commission tracking, and payment verification - A wellness platform with real-time mood tracking and Canvas/WebGL-based data visualization - A React Native employee benefits app connecting businesses with discount partners - A tax-filing SaaS with automated IRS form logic I own projects end-to-end architecture, database design, API development, frontend build, and deployment and I've led development teams and conducted code reviews along the way. I communicate directly with clients; there's no handoff through project managers or account reps. My MNC background ensures I deliver enterprise-grade code with a focus on performance (slashing API latency by 40%), system resilience (99.9% uptime via Blue-Green deployment on AWS/GCP), and seamless scalability (supporting 10k+ concurrent users with Redis caching and optimized DB indexing). 𝙒𝙝𝙤 𝙄 𝙃𝙚𝙡𝙥 I work with: 🔹Founders launching a new SaaS product who need a technical partner, not just a coder 🔹Growing SaaS/martech teams who need multi-tenant architecture that won't fall apart at scale 🔹Enterprises modernizing legacy systems onto modern frameworks and cloud infrastructure 🔹Agencies who need a senior full stack developer to own a project end-to-end without hand-holding 𝙒𝙝𝙮 𝘾𝙡𝙞𝙚𝙣𝙩𝙨 𝙃𝙞𝙧𝙚 𝙈𝙚 🔹I make architecture decisions, not just implement someone else's spec 🔹I've led teams and run code reviews I write code that other developers can maintain after I'm gone 🔹I communicate directly with clients and stakeholders, not through three layers of project managers 🔹I've taken systems from "legacy and fragile" to "modern and scalable" more than once I know what actually breaks in production, not just in theory 𝘾𝙤𝙧𝙚 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚: 𝙁𝙧𝙤𝙣𝙩𝙚𝙣𝙙 React.js, Angular, Next.js, TypeScript, Tailwind CSS, React Native building interfaces for web and mobile from the same underlying product logic. 𝘽𝙖𝙘𝙠𝙚𝙣𝙙 Node.js, Express.js, NestJS, GraphQL designing APIs that are built to be extended, not rebuilt every time a new feature lands. 𝘾𝙡𝙤𝙪𝙙 & 𝘿𝙚𝙥𝙡𝙤𝙮𝙢𝙚𝙣𝙩 AWS and GCP from initial infrastructure setup through ongoing deployment and performance monitoring. 𝘼𝙧𝙘𝙝𝙞𝙩𝙚𝙘𝙩𝙪𝙧𝙚 Multi-tenant SaaS design, microservice-friendly API structuring, database schema design for systems that need to scale across multiple clients or business units. 𝘼𝙋𝙄 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩 RESTful API design, third-party integrations, payment/transaction verification systems. 𝘿𝙖𝙩𝙖𝙗𝙖𝙨𝙚 MongoDB, MySQL schema design, query optimization, and data architecture for multi-tenant environments. 𝙋𝙚𝙧𝙛𝙤𝙧𝙢𝙖𝙣𝙘𝙚 Application performance tuning, production issue resolution, and optimizing systems that are already live and can't afford downtime. 𝙏𝙮𝙥𝙚𝙨 𝙤𝙛 𝙋𝙧𝙤𝙟𝙚𝙘𝙩𝙨 𝙄'𝙫𝙚 𝘿𝙚𝙡𝙞𝙫𝙚𝙧𝙚𝙙 🔹Multi-tenant campaign and loyalty platforms (voucher distribution, cashback management, dynamic microsites) 🔹Payment middleware and merchant wallet systems with commission tracking 🔹Wellness/mental health platforms with real-time mood tracking and data visualization 🔹HR/employee benefits platforms (web + React Native mobile) 🔹Legacy system migrations onto modern frameworks and cloud infrastructure 🔹Tax preparation SaaS with automated form logic and IRS-compliant data formatting 𝙄𝙣𝙙𝙪𝙨𝙩𝙧𝙞𝙚𝙨 𝙄'𝙫𝙚 𝙒𝙤𝙧𝙠𝙚𝙙 𝙄𝙣 FinTech & Payments · SaaS & Loyalty/MarTech · HR Tech · Wellness & Health Tech · Legal/Tax Software . E-commerce 𝙒𝙝𝙮 𝘾𝙡𝙞𝙚𝙣𝙩𝙨 𝘾𝙝𝙤𝙤𝙨𝙚 𝙈𝙚 ✔ 10+ years building production web applications, from startups to enterprise ✔ I own systems end-to-end architecture, backend, frontend, and deployment ✔ Direct communication you talk to the person actually writing the code ✔ Experience leading teams and mentoring developers, not just working solo ✔ Track record of stabilizing and scaling systems that were already live 𝙏𝙚𝙘𝙝 𝙎𝙩𝙖𝙘𝙠 React.js · Angular · Next.js · Node.js · Express.js · NestJS · GraphQL · JavaScript · TypeScript · MongoDB · MySQL · AWS · GCP · React Native · Tailwind CSS · RxJS/NgRx 𝙇𝙚𝙩'𝙨 𝙏𝙖𝙡𝙠 If you're building something that needs to actually hold up not just demo well send me a message with what you're working on. I'll tell you honestly whether I'm the right fit before we start, not after.