Pavan Kumar

Full Stack Developer with 3.5+ years of experience building scalable SaaS and AI-integrated web applications using React.js, Node.js, Express.js, and MongoDB. Production experience on a live B2B SaaS platform (JarvisReach) serving 1,000+ active users. Hands-on with Generative AI (OpenAI APIs), JWT/RBAC authentication, AWS deployments, and performance optimization delivering measurable improvements: 35% faster load time, 30% faster API response, 40% better mobile usability.

Full Stack Developer - Sprintzeal Pvt Ltd - Bangalore

(2024-10)

• Engineered production-grade features on JarvisReach, a B2B SaaS outreach platform serving 1,000+ active users using React.js, Node.js, Express.js, and MongoDB.
• Integrated OpenAI APIs for automated email/template generation, significantly cutting manual content creation time.
• Built scalable CRM-style admin and user dashboards with complete RBAC and JWT authentication workflows.
• Created reusable React component libraries with code-splitting, lazy loading, and memoization — reducing initial page load time by 35%.
• Built fully responsive cross-platform UI improving mobile usability scores by 40%.
• Optimized MongoDB query performance and indexing strategy, reducing average API response time by 30% under high concurrency.

Software Developer - Tracxn Technologies Ltd - Remote

(2022-02 - 2023-08)

• Built interactive financial data dashboards using React.js, Redux, and Node.js to visualize datasets covering 1M+ companies and funding records.
• Engineered CRUD workflows and multi-field validation logic, improving data accuracy by 35%.
• Reduced redundant API calls by 20% through optimized caching and smart state management using Redux and Context API.
• Boosted UI performance by 30% via route-level lazy loading, memoization, and optimized React Hooks on data-heavy pages.

Bachelor's Degree - Computer Application - IRM College, Kuppam, India (2018 - 2021)