Backend Engineer
Vedant Raut
Building production-grade backend systems with Java, Spring Boot, and microservices architecture. Specializing in secure APIs, payment integrations, and scalable solutions.
Currently at Pinggy, designing and implementing mission-critical infrastructure including OAuth2 systems, payment gateways, and enterprise authentication flows.
About
I'm a Backend Engineer focused on designing and implementing production-grade systems that scale. With expertise across Java, Spring Boot, and microservices architecture, I build secure, maintainable solutions for complex business requirements.
At Pinggy, I've taken ownership of critical infrastructure components. I architected our Spring Authorization Server from scratch, implemented secure payment processing with Razorpay and PayPal integrations, and built enterprise authentication systems including Two-Factor Authentication. These systems handle millions of transactions and serve as the foundation for our platform's security and reliability.
I'm a 5-Star HackerRank Java developer with published open-source work on Maven Central. I believe in writing clean, efficient code and staying current with industry best practices.
Education
Bachelor of Engineering (IT)
Atharva College of Engineering
2022
Diploma in Computer Engineering
Vidyavardhini Polytechnic
2019
Highlights
- →5-Star HackerRank Java
- →Maven Central Published
- →Payment Systems Expert
Experience
Backend Engineer
Pinggy
Apr 2023 – Present
Building and maintaining production backend systems powering Pinggy's tunneling service platform. Responsible for secure APIs, payment infrastructure, and enterprise authentication systems.
- ▸Architected and deployed production-grade Spring Authorization Server implementing OAuth2/OIDC flows with JWT token generation and secure client authentication
- ▸Implemented comprehensive Two-Factor Authentication (2FA) system with email and OTP flows, including secure account recovery mechanisms
- ▸Integrated Razorpay payment gateway for subscription billing, implementing secure server-side payment flows with webhook reconciliation
- ▸Integrated PayPal payment gateway for international transactions, enabling multiple payment options and supporting global customer base
- ▸Designed and implemented Role-Based Access Control (RBAC) system for team management with organization-level permissions
- ▸Published Email Normalization Java library on Maven Central supporting Gmail, Yahoo, and Outlook providers with custom domain rules
- ▸Implemented WebSocket-based real-time updates to reduce API calls and database load in high-throughput scenarios
Assistant System Engineer
Tata Consultancy Services
Jul 2022 – May 2023
- ▸Maintained and enhanced enterprise Java applications using Spring MVC and Struts frameworks
- ▸Improved incident resolution time by approximately 20% through systematic root cause analysis
- ▸Reduced weekly support tickets by implementing long-term fixes and automation solutions
Featured Projects
Spring Authorization Server
Production-grade OAuth2/OIDC authorization server powering Pinggy's authentication infrastructure. Implements secure token management and client credential handling.
Key Accomplishments
- • Full OAuth2/OIDC support with JWT token generation
- • Secure client authentication and credential management
- • Scope-based access control and token introspection
- • Handles millions of authentication requests in production
Email Normalization Library
Open-source Java library published on Maven Central. Provides intelligent email standardization and validation across multiple providers with custom domain support.
Key Accomplishments
- • Support for Gmail, Yahoo, Outlook, and custom domains
- • Comprehensive email normalization rules
- • Published on Maven Central Repository
- • Extensive test coverage and documentation
HR Management System
Enterprise-grade HR platform managing complete employee lifecycle including payroll, attendance, leave management, and compliance reporting.
Key Accomplishments
- • Automated payroll processing for 1000+ employees
- • Processed 5000+ attendance records monthly
- • Optimized with database indexing and batch operations
- • Role-based access control and audit logging
Petrol Pump Finance System
Finance tracking platform for petrol pump operations managing sales, credit transactions, staff payments, and financial reconciliation across multiple outlets.
Key Accomplishments
- • Multi-outlet support with centralized reporting
- • Real-time sales tracking and credit management
- • Automated staff payment processing
- • Daily and monthly financial reconciliation reports
Skills & Technologies
Languages
Frameworks & Libraries
Backend Technologies
Databases
DevOps & Tools
Payment Integrations
Let's Work Together
Interested in discussing backend architecture, system design, or collaboration opportunities? I'd love to connect and explore how I can contribute to your team.