I'm a
Senior Backend Engineer specializing in Distributed Systems and Event-Driven Architecture | Building scalable systems processing 1M+ daily transactions | $500K+ cloud cost optimization | 80% latency reduction for Fortune 500 clients | 7+ years delivering high-impact solutions
As a Senior Backend Engineer at Ernst & Young LLP with 7+ years of progressive experience, I architect and deliver large-scale distributed systems that process 1M+ daily transactions powering critical financial operations for Fortune 500 clients. My expertise spans the full spectrum of modern backend engineering—from designing event-driven microservices architectures to optimizing system performance at scale, delivering $500K+ in annual cost savings and achieving 80% latency improvements.
I bring deep technical expertise in Java ecosystem (Spring Boot, Hibernate, JPA), distributed systems patterns, and cloud-native architectures on AWS. My track record includes architecting 25+ high-throughput microservices handling 500K+ API requests daily, serving 30+ downstream systems, and reducing production incidents by 70% through strategic refactoring that improved system reliability to 99.95% uptime.
What sets me apart is my ability to translate complex technical challenges into scalable solutions that drive measurable business impact. I excel at system design, owning the full lifecycle from architecture decisions to production operations. I thrive in high-performing engineering teams, having successfully collaborated with cross-functional teams of 50+ engineers across global time zones, while also demonstrating strong capabilities as an independent technical leader driving end-to-end delivery of critical systems.
Currently seeking L5/Senior+ roles at FAANG, Global Fintech, or high-growth tech companies where I can leverage my expertise in distributed systems, microservices architecture, and cloud-native engineering to solve complex technical challenges at scale.
Daily Transactions
Features Delivered
Cost Savings Achieved
System Uptime
Proven expertise in designing and implementing large-scale distributed systems that power mission-critical applications
Architected event-driven microservices platform on AWS delivering real-time investment and transaction data to enterprise financial clients with 99.9% availability.
Designed fault-tolerant microservices for nationwide smart locker infrastructure supporting 24/7 public usage with 500+ retail locations.
Built shared backend service platform used by 30+ downstream systems, reducing duplication and improving consistency across the enterprise.
Designed cost-tracking and monitoring services for large-scale messaging workflows processing 200K+ monthly notifications.
Horizontal scaling, stateless services, distributed caching
Circuit breakers, retry logic, graceful degradation
Async processing, optimized queries, efficient algorithms
Distributed tracing, metrics, logging, monitoring
OAuth 2.0, encryption, RBAC, compliance
Resource optimization, serverless, right-sizing
Delivering measurable business outcomes through technical excellence and strategic decision-making
Optimized API response times from 1.2s to 240ms through strategic caching, query optimization, and distributed computing patterns
Architected systems processing millions of financial transactions daily with sub-second latency and 99.95% uptime
Built high-throughput services handling hundreds of thousands of requests with automatic scaling and load balancing
Optimized AWS infrastructure and CI/CD pipelines, rightsizing resources and implementing serverless architectures
Refactored 15+ legacy services, reducing complexity by 60% while maintaining functionality and improving maintainability
Optimized CI/CD pipelines and build processes, significantly reducing deployment times and developer feedback loops
Achieved enterprise-grade reliability through fault-tolerant design, comprehensive monitoring, and proactive incident management
Reduced production crashes from 200 to 60 monthly incidents through systematic debugging and preventive measures
Elevated code quality by implementing comprehensive testing strategies including unit, integration, and end-to-end tests
Built reusable platform services consumed by 30+ applications, reducing duplication and improving consistency
Led end-to-end delivery of 150+ features across multiple projects with 95% sprint commitment achievement
Established code review culture conducting 500+ reviews, mentoring junior engineers, and driving best practices
Architected enterprise-grade automated communication platform delivering multi-channel customer notifications (email, PDF, postal). Designed serverless AWS infrastructure processing 100k+ daily transactions with 80% latency reduction through event-driven architecture.
Engineered IoT-enabled digital locker management system supporting 500+ retail locations. Implemented real-time device monitoring, QR-based authentication, and SMS engagement workflows. Achieved 99.8% system uptime and 70% performance improvement through strategic caching and query optimization.
Developed HIPAA-compliant healthcare collaboration platform enabling secure practitioner networking with encrypted chat, WebRTC video conferencing, and MFA authentication. Built research sharing infrastructure serving 10k+ healthcare professionals with zero security breaches.
Built scalable multi-vendor e-commerce platform with advanced product variation engine and ElasticSearch-powered discovery. Supported 10k+ concurrent users during peak sales, reducing cart abandonment by 25% through optimized checkout workflows and strategic performance tuning.
Engineered high-frequency cryptocurrency trading platform handling real-time order matching and settlement for Bitcoin, Ethereum, and digital assets. Implemented fault-tolerant architecture with Redis caching achieving sub-100ms trade execution latency under peak load.
Pioneered blockchain-based device identity validation system for IoT ecosystems. Leveraged distributed ledger technology (IOTA Tangle) to enable secure, decentralized machine-to-machine authentication across 50k+ connected devices with cryptographic verification.
Developed feature-rich social networking platform with real-time messaging, MFA-secured authentication, and personalized content feeds. Architected scalable backend supporting 50k+ active users with Redis-powered caching delivering 60% faster load times.
Automated enterprise communication workflows through WhatsApp Business API integration. Built document-driven messaging system processing 200k+ monthly notifications with 98% delivery success rate, significantly improving customer engagement metrics.
Completed Master's degree with focus on advanced programming, database management, and software engineering principles.
Bachelor's degree in Science with strong foundation in mathematics, physics, and computer fundamentals.
Professional certification validating cloud knowledge and expertise in AWS services, architecture, and best practices.
Completed secondary and higher secondary education with Science stream from UP Board.
I'm actively seeking opportunities to contribute to innovative projects where I can leverage my expertise in Java, cloud architecture, and enterprise application development. Whether you're looking to modernize legacy systems, build scalable microservices, or architect cloud-native solutions, I'd love to explore how we can collaborate.
luckysharma824@gmail.com
+91-9997105792
Malkhan Building, Vill-Ghitorni, Delhi - 110030, India
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Delhi, India