
Hey, I'm Pratham Gwari
Full Stack Developer
Full stack developer with 3+ years of experience spanning fintech, cybersecurity, and AR/VR technologies. I combine backend expertise in Node.js/Express with frontend proficiency in React/Next.js to deliver scalable, secure applications. As a top 10% freelancer on Fiverr with 48+ successful projects, I've developed strong client communication skills working with international businesses on development and cloud consulting. My career progression from AR/VR intern to leading backend development for multi-tenant SaaS platforms demonstrates my adaptability across diverse technologies and business domains.
Skills
Combining practical development expertise with strong algorithmic problem-solving abilities.
Technical Skills
Frontend
Backend
DevOps & Tools
Data Structures & Algorithms
Problem Solving
Work Experience
My professional journey as a Full Stack Developer, delivering impactful solutions.
Backend Developer (Part-Time)
October 2024 - Present
Leading backend development for a sophisticated multi-tenant SaaS fintech platform that enables financial service providers to offer white-labeled products with customized branding and functionality.
Key Responsibilities:
- Architected and implemented a scalable multi-tenant backend infrastructure with sophisticated access control systems and data isolation for financial service providers
- Designed and developed a complex relational database schema with 35+ interconnected models using PostgreSQL and Sequelize ORM for financial entities management
- Built comprehensive RESTful APIs for account management, payment processing, investment portfolios, and financial planning with Express.js
- Implemented robust security measures including JWT authentication, OAuth integration (Google/Apple), role-based access control, and encrypted storage for sensitive financial data
- Integrated payment processing services with bank account verification and direct debit mandates for seamless financial transactions
- Optimized application performance using Redis caching, database connection pooling, and query optimization techniques
- Developed a containerized deployment architecture with Docker, enabling consistent deployment across environments
- Created comprehensive test coverage using Jest and Supertest with 80%+ code coverage for critical financial workflows
- Implemented detailed logging, monitoring, and analytics with correlation IDs for tracking user activities and system performance
- Led thorough code reviews to ensure code quality, security, and maintainability across the team
- Established structured Git workflow strategies enabling parallel feature development for improved team velocity
- Designed and implemented CI/CD deployment pipelines to streamline release processes and reduce deployment risks
- Conducted knowledge transfer sessions and training programs to onboard new developers, reducing ramp-up time by 40%
Technologies Used:
Associate Full Stack Developer
March 2023 - Present
Started as an intern and quickly advanced to a full-time role at a leading cybersecurity services company, collaborating in a team of 3 developers to build sophisticated security assessment platforms and vulnerability management systems used by the internal consulting team for client engagements.
Key Responsibilities:
- Contributed to the development of Nucleus, a distributed microservices architecture for security scanning and analysis, working with TypeScript/Node.js services and Docker containerization
- Collaborated on designing and implementing MySQL database schema components for the Maximus platform, supporting security assessment, findings management, and reporting systems
- Developed key frontend components for the Maximus platform using Next.js/React with role-based access control, data visualization, and interactive security assessment workflows
- Implemented authentication modules using JWT, Microsoft OAuth integration, and role-based permissions as part of the security architecture team
- Worked with team members to create report generation systems with customizable templates supporting multiple document formats (DOCX, XLSX) and version control
- Collaborated on setting up CI/CD pipelines using GitLab CI and Jenkins for automated testing, building, and deployment across environments
- Implemented performance optimizations through Redis caching, React Query for state management, and database query optimization techniques
- Reduced application startup time in development environment from 82 seconds to 12 seconds by implementing lazy loading and tree shaking techniques to eliminate unnecessary module imports
- Participated in the integration of security scanning tools with containerized execution environments and standardized result parsing
- Contributed to API documentation using Swagger/OpenAPI with detailed endpoint specifications and example requests
- Worked alongside team members to develop automated vulnerability assessment workflows with standardized finding classification
Technologies Used:
React Redux Developer
January 2022 - March 2022
Worked remotely on developing an interactive music learning application for Mirchi Music, similar to Yousician, that helps users improve their singing by providing real-time pitch and frequency feedback.
Key Responsibilities:
- Engineered interactive music visualization components using React.js and Web Audio API to display real-time pitch analysis and vocal frequency comparison with reference tracks
- Implemented a sophisticated state management architecture with Redux and Redux Toolkit, enabling seamless synchronization between audio playback, user input, and visualization components
- Developed an intuitive progress tracking system allowing users to visualize their improvement over time through custom SVG-based charts and performance metrics
- Built a comprehensive admin dashboard with drag-and-drop functionality for content managers to upload, organize, and publish music lessons without technical assistance
- Optimized audio processing performance by implementing efficient audio buffering techniques and worker threads for frequency analysis calculations
- Designed and implemented responsive UI components for both desktop and mobile interfaces, ensuring a consistent user experience across all devices
- Integrated with backend APIs to manage user profiles, lesson data, and performance analytics with proper error handling and loading states
Technologies Used:
Software Developer Intern
October 2020 - August 2021
Contributed to the development of immersive augmented and virtual reality experiences for mobile platforms, focusing on creating engaging user interactions and realistic simulations.
Key Responsibilities:
- Developed cross-platform AR applications for iOS and Android using Unity 3D and C#, implementing interactive 3D elements and user interface components
- Integrated advanced AR features including image tracking, marker-based AR, and SLAM-based plane detection using ARCore and ARKit frameworks via Unity
- Implemented realistic physics simulations for virtual objects, including cloth physics and rigid body interactions to enhance immersion in AR environments
- Created shader effects and materials to improve visual fidelity and performance of 3D assets in mobile AR applications
- Optimized AR applications for mobile performance by implementing efficient rendering techniques, asset optimization, and memory management
- Integrated and configured monetization systems including in-app purchases, reward-based ads, and banner advertisements using AdMob and Unity Ads
- Participated in client meetings to gather requirements, demonstrate prototypes, and present technical solutions for AR/VR projects
Technologies Used:
Client Testimonials
What my clients have to say about my work across 36+ projects.
Pratham is fantastic, I really appreciate his hard work and dedication. He even asked to do a call to make sure I was happy and to give me some ideas for future improvements for our web app. Really awesome, highly recommended.
Absolutely professional and very fast. Unbelievably good at communicating both deadlines and the issues that he's trying to solve. This is the type of help you need when your back is against the wall and a deadline on your heels. Cant say enough good things about him.
Working with Pratham was such a pleasure! He was able to squeeze me in his busy schedule and work with me through messaging and google meet to help me get my website deployed. I would 100% recommend him to anyone who needs assistance.
I am extremely satisfied with the consultancy services provided for setting up and deploying my web application. Pratham did an excellent job comparing AWS and GCP based on my specific use case. Their expertise and understanding of both platforms were evident in their detailed analysis and recommendations. Their guidance was invaluable in helping me make an informed decision.
Many thanks bro for your kind support you solve something was very difficult to be solved and all of my in house developers were not able to solve it many thanks always will keep you in my list for new tasks!
Pratham is very professional. He is an excellent problem solver and ensures the job is completed to perfection. He is available to communicate any user side errors to make sure you understand the work that's been done even after the job is completed. Without a doubt I would work with him again.
Accomplishments & Awards
Recognition of my work and contributions to the tech community.
Excellence in Service Award
Payatu
December 2023
Honored with the Excellence in Service Award for outstanding contributions to Payatu's internal product development initiatives. Recognized for exemplary dedication and technical expertise that significantly advanced the company's product engineering objectives.
Xiaomi Ode 2 Code 2.0 Winners
Xiaomi
2022
Distinguished with 2nd place honors in Xiaomi's prestigious Ode 2 Code 2.0 hackathon, competing among 8,000 elite engineering students across India. The achievement was recognized with a substantial ₹75,000 cash prize, along with high-value technology equipment. The final round was conducted at Xiaomi's corporate headquarters in Bangalore.

Fiverr Level 2 Seller
Fiverr
2024
Attained prestigious Level 2 Seller status on Fiverr, positioning within the platform's top 10% of professional service providers. Established a distinguished track record delivering premium development and cloud consultation services to a diverse international client base of 48+ organizations. Generated over ₹4.5 lakhs in revenue through consistent delivery of high-caliber technical solutions.
Hacktoberfest Contributor
Digital Ocean & GitHub
October 2022
Successfully participated in Hacktoberfest by contributing meaningful pull requests to open source projects, demonstrating collaboration and coding skills.

DevFest 2021 Participant
Google Developer Groups
2021
Participated in DevFest 2021, engaging with the latest technologies and networking with fellow developers in the Google ecosystem.

Beamable Gameathon
Beamable
2021
Competed in the Beamable Gameathon, showcasing game development skills and creativity in building engaging gaming experiences.
These accomplishments represent my dedication to excellence and continuous improvement in the tech industry.