Donga Developer

Full-stack developer with 5+ years of experience building secure, scalable SaaS, healthcare, and fintech web applications. Specializes in React.js, Next.js, Node.js, Nest.js, TypeScript, PostgreSQL, MongoDB, and AWS/Azure cloud infrastructure. Proven track record delivering production systems with CI/CD automation, Infrastructure as Code (AWS CDK/CloudFormation), and 15+ third-party API integrations.

Full-Stack Web Developer - Freelance - Remote

(2025-03)

• Engineered cloud-native web applications owning end-to-end frontend and backend delivery from design to production using React.js, TypeScript, and Node.js on AWS.
• Optimized API and UI performance, reducing average response times by 20%.
• Launched a lightweight feature set that cut hosting costs by 18% while onboarding 1,200+ new users monthly for AKinfolution apps globally.
• Implemented auto-scaling and load distribution to handle 5x peak loads, achieving 99.95% uptime throughout Q4 delivery.
• Expanded unit and integration test coverage to 90%, reducing flaky deployments and boosting release stability across all services.

Full-Stack Web Developer - Proaxiom - Surat

(2023-10 - 2025-02)

• Built and deployed full-stack MERN applications end-to-end, implementing secure coding practices including SQL injection prevention and input validation.
• Managed AWS Lightsail, EC2, ECR/ECS, and Azure deployments, improving reliability and scalability across environments.
• Implemented CI/CD pipelines, resulting in 40% faster releases and significantly reduced manual effort.
• Increased automated unit test coverage by 60%, reducing production defects and improving overall software quality.
• Achieved 99.99% uptime through proactive monitoring and automated rollback strategies.

Full-Stack Web Developer - Skyline Infosys - Surat

(2022-08 - 2023-09)

• Designed and developed modular web applications with React and Node.js, focusing on code quality and architectural best practices.
• Built RESTful APIs and integrated third-party services (Stripe, Sanity, HubSpot) to enable key business workflows.
• Reduced API response time from 780ms to 320ms — a 59% improvement — through React rendering and Node.js handler optimizations.
• Streamlined third-party integrations, reducing manual steps by 40% and accelerating feature delivery by 2 weeks per month.
• Implemented lightweight caching and request batching, reducing peak latency by 70% while maintaining 99.9% uptime.
• Expanded test coverage and lint rules, resulting in a 45% reduction in production bugs within the first quarter.

MERN Developer - BVM Infotech - Surat

(2021-04 - 2022-07)

• Built secure authentication flows improving user onboarding experience and session stability.
• Delivered rapid feature prototypes using Next.js and Tailwind CSS, accelerating product validation cycles.
• Contributed to frontend and backend modules across the MERN stack, supporting ongoing product enhancements and accessibility improvements.

Professional IT Course - AD-Tech Institute (2021-03)

Higher Secondary (12th Commerce) - MNJ Patel High School (2020)