🚀 Software Engineer | 💻 Backend-Heavy Full Stack Developer | ⚙️ System Thinker

I build systems that hold up when things get real — high-throughput APIs, event-driven architectures, and services that don't wake anyone up at 3 AM. I care about clean code, smart automation, and engineering that scales without drama. Outside work, I break things in personal projects just to understand how they tick.

• Languages: Java (8 & 21 — migrated production apps from 8 → 21 with zero-downtime rollout)
• Frontend: React.js
• Backend: Java (Spring, Spring Boot), REST APIs
• Databases: MongoDB 8.x (major version migration), MySQL, Redis (caching, session management, rate limiting)
• Messaging: Apache Kafka (event streaming, partition strategies, exactly-once semantics), Message Queues (async processing)
• AI: Amazon Q AI Agent (production prompt engineering for consistent, reliable outputs)
• DevOps: Jenkins (pipeline-as-code, multi-env deployments, rollback strategies)
• Observability: ELK Stack (centralized structured logging with alerting), Health Check endpoints
• Security: Enterprise security layers (auth, authorization, input validation, API security), Log Masking (PII/tokens never in plain text)
• Testing: JUnit (unit + integration), JMeter (API load testing — bottlenecks, connection pool limits, memory leaks)
• Documentation: Swagger/OpenAPI, JIRA (sprint planning, enterprise-scale delivery)
• Practices: SOLID, Clean Architecture, Design Patterns, Automation of manual workflows

• 📚 If someone is doing it by hand more than twice — I automate it.
• 🏗️ Design principles aren't buzzwords — they're how I structure enterprise applications.
• 🧪 Tests are part of "done", not an afterthought.
• 🔒 Security is built in from day one, not bolted on later.
• 📖 Code should be readable by another engineer six months later without a walkthrough.

• Migrated enterprise Java applications from 1.8 to 21 — module system, deprecated APIs, library compatibility, full regression coverage.
• Handled MongoDB 8.x major version migration — schema validation changes, aggregation pipeline updates, index strategy overhaul.
• Built CI/CD pipelines in Jenkins with automated builds, tests, deployments, and rollback strategies.
• Implemented centralized logging with ELK for distributed microservices.
• Applied enterprise security layers and log masking in production systems handling real user data.
• Built AI agents with Amazon Q using optimized prompt practices for production workflows.
• Load tested APIs with JMeter to find breaking points before users do.
• Automated repetitive manual processes across teams.

• LinkedIn: https://www.linkedin.com/in/saurabhsds13
• HackerRank: https://www.hackerrank.com/profile/saurabhsds13
• Email: saurabhsds13@gmail.com

⭐️ Want to talk architecture, system design, or geek out about Java migrations? Reach out.