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| ⚙️ Backend & Systems | 🗄️ Databases & Caching | ☁️ DevOps & Cloud | 🤖 Frontend & AI Tools |
|---|---|---|---|
Java 17/21 Spring Boot 3.xSpring MVC Spring WebFluxSpring Security Spring CloudHibernate / JPA REST APIsMicroservices Architecture
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SQL MySQL PostgreSQLMongoDB Oracle DBRedis Caching & LocksApache Kafka StreamingHikariCP Connection Pool
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AWS (EC2/EKS/ECR/RDS/S3)Docker & KubernetesJenkins CI/CD GitHub ActionsVercel Firebase ServicesGit / GitHub Version Control
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Angular TypeScript JavaScriptHTML5 & CSS3 BootstrapCursor AI EditorGitHub CopilotChatGPT / Claude AI
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Backend Architect & Lead Developer | Java 17 Spring Boot 3.3 Spring Cloud (Eureka, Gateway, Config) Spring Security MySQL
- Core Mission: Designed and built the backend microservice architecture for a comprehensive competitive coding, contest, and quiz assessment platform.
- Microservice Ecosystem: Engineered a highly decoupled microservice platform featuring 15+ specialized modules (Auth, Profile, Activity, Quiz, Admin, Coding, Competition).
- Centralized Configuration: Implemented dynamic profile-based configuration loading using Spring Cloud Config Server and bootstrap files (
bootstrap.yml), securing system properties and database secrets. - Service Mesh & Security: Configured service discovery with Eureka Server, centralized routing via API Gateway, and secure stateless sessions with JWT-based Spring Security.
- Dynamic Assessment & Scoring: Built robust logic for real-time quiz management, automated grading, user activity logging, and system-wide custom logging frameworks.
Backend Architect & Lead Developer | Java 17 Spring Boot 3.x Spring Security Redis MySQL Docker
- Core Mission: Developed a high-performance, secure online assessment platform featuring end-to-end exam lifecycle management and automated grading.
- Intelligent Proctoring: Implemented strict security safeguards including browser full-screen enforcement, tab-lock, and context-menu/clipboard disable actions to ensure exam integrity.
- Automated Exam Lifecycle: Engineered background schedulers (
TestStatusScheduler) for dynamic exam scheduling, random question allocation, and instant scorecard generation. - Observability & Caching: Leveraged Redis caching for user sessions and quiz states, HikariCP for database pooling, and Actuator with Prometheus/Grafana for observability.
- Communication & Ticket Support: Integrated email/SMS notification services (OTP verification) and an in-portal live ticket chat support system for real-time candidate assistance.
Backend Architect & Lead Developer | Java 17 Spring Boot 3.x Spring Security Redis MySQL Docker
- Backend Engineering: Designed and delivered 65+ REST APIs supporting user management and operational workflows with robust validation and structured exception handling.
- Backend Automation: Automated core business processes to streamline operational workflows and minimize manual intervention.
- Performance Optimization: Improved API responsiveness through optimized database queries and efficient API design.
- System Reliability: Enhanced application stability with comprehensive exception handling, input validation, and consistent error management.
| 📊 Key Engineering Metric | ⚡ Actual Production Benchmark | 🎯 Architectural Standard |
|---|---|---|
| Primary Backend Stack | Java 17 / Spring Boot 3.x / WebFlux |
Production Microservices & Trading Engine |
| Order Execution Latency | Sub-millisecond (p99 < 5ms) |
Reactive Non-Blocking Order Book Engine |
| Event Streaming Throughput | 10,000+ msgs/sec via Apache Kafka |
Distributed Audit Trails & Real-Time Risk Engine |
| Database & Cache Reliability | Redis Caching + HikariCP Connection Pool |
ACID Double-Entry Ledger & Session Isolation |
| Security & Auth Protocol | Stateless JWT + OAuth2 + Spring Security |
Zero-Trust RBAC & OWASP API Top 10 Compliance |
| Cloud Deployment & Orchestration | AWS (EKS, ECR, RDS) + Docker + GitHub Actions |
Automated CI/CD Pipelines & Zero-Downtime Deploys |
⚡ Architected with 💙 & ⚡ by Dinkar Prasad ⚡