Rizwan R

Independent Consultant & Freelance Engineer

Feb 2025 - Present • 1 yr 6 mos

Providing full-stack web development services for startups, SMEs, and enterprises worldwide. Specializing in AI-powered applications, SaaS platforms, healthcare systems, fintech solutions, ERP software, marketplaces, and custom business applications. Focused on delivering secure, scalable, and high-performance digital products while building long-term partnerships through quality, reliability, and business-driven solutions.

Full Stack Engineer

Jun 2023 - Feb 2025 • 1 yr 8 mos

I designed, developed, and maintained scalable web applications across healthcare, fintech, e-commerce, and SaaS domains. I collaborated with cross-functional teams to deliver secure, high-performance, and user-centric software solutions using modern full-stack technologies. 𝗞𝗲𝘆 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀 & 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀: • Designed and developed end-to-end web applications using the MERN/PERN stack and modern JavaScript frameworks. • Built HIPAA-compliant healthcare platforms with secure patient management, appointment scheduling, messaging, video/audio consultations, electronic prescriptions, and protected health information (PHI) handling. • Integrated DoseSpot ePrescribing to enable secure prescription management and pharmacy workflows. • Developed fintech applications with secure payment processing, financial workflows, and transaction management. • Implemented and integrated multiple payment gateways, including Stripe, Wise, and Authorize.Net, supporting subscriptions, one-time payments, payouts, and recurring billing. • Designed and developed highly dynamic and reusable form builders capable of handling complex business workflows, conditional logic, validations, and custom field configurations. • Led a team of developers by reviewing code, mentoring junior engineers, assigning tasks, and ensuring timely project delivery while maintaining high coding standards. • Designed and consumed RESTful APIs and integrated third-party services to extend application functionality. • Optimized MongoDB and PostgreSQL databases for performance, scalability, and reliability. • Implemented authentication, authorization, role-based access control, and security best practices across applications. • Collaborated closely with product managers, designers, QA engineers, and stakeholders throughout the Agile development lifecycle. • Debugged and resolved complex production issues, optimized application performance, and improved system reliability.

Full Stack Engineer

Jun 2022 - Jun 2023 • 1 yr

A Full Stack Software Engineer is responsible for designing, developing, testing, deploying, and maintaining end-to-end web applications. They work across both front-end and back-end technologies to build scalable, secure, and high-performance software solutions. They collaborate closely with product managers, designers, QA engineers, and cross-functional teams to deliver seamless user experiences while following industry best practices. 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀: 1. Design, develop, and maintain full-stack web applications from concept to deployment. 2. Build responsive and user-friendly interfaces using modern front-end frameworks. 3. Develop secure, scalable, and efficient RESTful APIs and backend services. 4. Design, manage, and optimize relational and NoSQL databases. 5. Integrate third-party APIs, payment gateways, authentication systems, and cloud services. 6. Write clean, reusable, and well-documented code following software engineering best practices. 7. Debug, troubleshoot, and resolve application issues while optimizing performance. 8. Collaborate with UI/UX designers, QA engineers, and product teams to deliver high-quality software. 9. Participate in code reviews, sprint planning, daily stand-ups, and Agile/Scrum development processes. 10. Develop reusable components and maintain scalable application architecture. 𝗦𝗸𝗶𝗹𝗹𝘀: MERN Stack: MongoDB, Express.js, React.js, Node.js PERN Stack: PostgreSQL, Express.js, React.js, Node.js MEAN Stack: MongoDB, Express.js, Angular, Node.js JavaScript (ES6+) & TypeScript HTML5, CSS3, Tailwind CSS, Bootstrap Next.js, Redux RESTful APIs & GraphQL SQL & NoSQL Databases (MongoDB, PostgreSQL, MySQL) Authentication (JWT, OAuth, Firebase Authentication) Git, GitHub, GitLab Docker, CI/CD AWS, Azure, or Google Cloud Agile/Scrum Methodologies Problem Solving, Debugging, Performance Optimization, and Software Architecture