Rizwan A.

Are you looking for a battle-tested Senior Full-Stack Developer to architect modern, scalable, and high-performance applications? With a proven track record spanning over 8 years of professional engineering, I specialize in building production-grade software from scratch, rescuing legacy codebases, and integrating cutting-edge AI capabilities. From Y Combinator-backed startups to enterprise-level ERP providers across the US, UK, and Germany, I don't just write code—I design future-proof, self-healing architectures that solve complex business challenges in Fintech, Logistics, E-Commerce, and HealthTech. 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐈 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 → Languages: Ruby · JavaScript / TypeScript · Python → Backend: Ruby on Rails · Node.js (Express.js, NestJS) · Sidekiq · Kafka · RabbitMQ · BullMQ · WebSockets → Frontend: React.js · Next.js · Vue.js · Angular · Redux · Tailwind CSS · Material UI → APIs & Integrations: RESTful APIs · GraphQL · Third-Party Integrations → Databases & Search: PostgreSQL · MySQL · MongoDB · Redis · Elasticsearch · DynamoDB · Firebase → Cloud & DevOps: AWS (EC2, S3, RDS, Lambda, EventBridge) · Docker · GitHub Actions · CI/CD · Heroku · DigitalOcean · 𝗪𝗵𝗮𝘁 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗪𝗶𝘁𝗵 𝗠𝗲 𝗔𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝗟𝗼𝗼𝗸𝘀 𝗟𝗶𝗸𝗲 → Built to Scale: I design architectures that seamlessly handle a 5x surge in traffic and data load, ensuring your software grows alongside your business without requiring costly code changes. → End-to-End Ownership: From complex database modeling to high-fidelity frontend execution, I manage the full lifecycle, eliminating the need to coordinate multiple specialists. → Agile Communication: I maintain a proactive, transparent feedback loop, giving you complete visibility into milestones, blockers, and code deployment. → On-Time, On-Budget Handoffs: My development process is optimized for efficiency, ensuring predictable delivery timelines and highly customized product features. → Pragmatic, Data-Driven Thinking: I look at your product through a commercial lens, ensuring every architectural decision supports your user retention and business goals. → Zero Technical Debt: Through strict code reviews, modular engineering patterns, and comprehensive unit testing, I deliver a clean codebase that your team can easily scale. Let’s connect to build an agile, transparent partnership focused on clean code, predictable delivery, and long-term product success.