Hi there 👋 I’m Dhananjay Patil
💻 About Me
Senior Backend Engineer with 7+ years of experience specializing in building scalable, high-performance distributed systems and cloud-native applications. Passionate about microservices architecture, event-driven systems, and cloud-native development.
🎯 Core Competencies
- 🏗️ Architecture: Microservices, Serverless, Event-Driven/SOA, Cloud-Native, RESTful APIs, GraphQL
- ☁️ Cloud Platforms: AWS (GovCloud - FedRAMP High/ITAR), Azure (Government - FedRAMP High)
- 🔧 Backend Development: Node.js, Python, TypeScript, Express.js, NestJS, Flask, Django, FastAPI
- 📊 Data Engineering: Kafka, RabbitMQ, Elasticsearch, Redis, PostgreSQL, MongoDB, Cassandra, DynamoDB, CosmosDB
- 🐳 DevOps & Infrastructure: Docker, Kubernetes, Terraform, CDK-TF, Jenkins, ConcourseCI, IaC
- 🔗 Web3 & Blockchain: Ethereum, Solidity, Smart Contracts, Layer-2 Protocols
- 🧠 AI & ML: Transformers (Hugging Face), Meta LLaMA, Pandas, NumPy, Matplotlib
🏆 Key Achievements
- 🏛️ Government Cloud: Deployed secure applications on AWS GovCloud (FedRAMP High, ITAR) and Azure Government
- 📦 Open Source: Created UniCache NPM package with robust caching solutions used in production systems
- 🔐 Blockchain Protocols: Contributed to OpenST and Mosaic protocols enabling zero-fee micro-transactions on Ethereum
- 🎓 Mentorship: Led pair programming sessions and knowledge sharing across cross-functional teams
- ⚡ Performance: Optimized systems achieving 60%+ response time reduction and handling 10M+ requests/day
💼 Professional Focus
Currently specializing in:
- ☁️ Cloud-Native Development: Building scalable applications with serverless and containerized architectures
- 📈 Scalability: Designing systems that handle millions of requests with optimal performance
- 🔐 Secure Computing: Implementing solutions for government and highly regulated environments
- 🛠️ Developer Tools: Creating frameworks that improve developer productivity and code quality
💼 Professional Experience
Senior Software Engineer | Globant
Leading digital transformation and cloud solutions for enterprise clients
Key Projects & Contributions:
- 🏢 Enterprise Microservices Platform: Architected and developed scalable microservices infrastructure serving millions of users
- ☁️ Cloud Migration: Led AWS cloud migration initiatives with infrastructure-as-code (Terraform/Pulumi)
- 📊 Real-time Analytics: Implemented data pipelines using Kafka and Spark for real-time business intelligence
- 🔧 API Gateway: Designed and deployed high-performance API gateway handling 10M+ requests/day
- 👥 Team Leadership: Mentored junior engineers and conducted technical interviews
Technologies: Node.js, TypeScript, AWS (Lambda, ECS, RDS, DynamoDB), Kafka, Elasticsearch, Kubernetes, Terraform
Software Engineer | Casaone
Building innovative solutions for real estate technology
Key Projects & Contributions:
- 🏗️ Backend Architecture: Designed scalable backend systems for property management platform
- 🔐 Authentication & Authorization: Implemented secure JWT-based authentication with role-based access control
- 📱 RESTful APIs: Developed comprehensive REST APIs consumed by web and mobile applications
- 🗄️ Database Optimization: Optimized database queries reducing response time by 60%
- 🧪 Testing: Maintained 85%+ code coverage with comprehensive unit and integration tests
Technologies: Node.js, Express.js, PostgreSQL, Redis, Docker, Jest, AWS
Software Engineer | True Sparrow Systems
Contributed to innovative Web3 and blockchain projects
Moxie - Fitness Business Platform
- 💪 Built comprehensive SaaS platform for fitness entrepreneurs
- 🎥 Developed live-streaming infrastructure with real-time video delivery
- 💳 Integrated payment processing (Stripe) and subscription management
- 📅 Created scheduling system with automated notifications
- 🏪 Built marketplace connecting coaches with premium workout content
Technologies: Node.js, React.js, WebRTC, Socket.io, PostgreSQL, AWS S3
Open Simple Token (OST) - Blockchain Protocol
- ⛓️ Developed OpenST Protocol: Layer-2 scaling solution for Ethereum enabling brand token economies
- 🔐 Implemented Mosaic Protocol: Cross-chain state verification between Ethereum mainnet and sidechains
- 💰 Enabled zero-fee micro-transactions through meta-transactions and gas abstraction
- 📦 Created open-source SDKs and libraries used by 100+ blockchain projects
- 🔧 Built blockchain scanner and monitoring tools for transaction validation
Technologies: Node.js, Solidity, Web3.js, Ethereum, MySQL, Redis, RabbitMQ
Pepo - Web3 Social Network
- 🎨 Contributed to crypto-native social platform with token rewards for content creation
- 🪙 Implemented token economy mechanics and smart contract integrations
- 📱 Built RESTful APIs for social interactions (posts, comments, likes)
- 🔔 Developed real-time notification system using WebSockets
- 🏅 Recognition: Featured by Decrypt as groundbreaking crypto consumer UX
Technologies: Node.js, Express.js, Web3.js, MySQL, Redis, AWS
🎓 Education
Master of Business Administration (MBA) in Information Technology and Systems Management (ITSM)
SVKM’s Narsee Monjee Institute of Management Studies (NMIMS) | Mumbai, India
- Specialized in Business Management and Leadership
- Cloud Computing, IT Project Management
- Focus on Technology Management and Innovation
- Strategic Planning and Business Analytics
- Entrepreneurship and Product Management
Bachelor of Engineering (B.E.) in Computer Engineering
Pune Institute of Computer Technology (PICT) | Pune, India
- Strong foundation in Computer Science fundamentals, Data Structures, and Algorithms
- Specialized coursework in Distributed Systems, Cloud Computing, and Software Engineering
- Participated in coding competitions and hackathons
- Active member of technical clubs and coding communities
🚀 Featured Projects
🛒 E-commerce Microservices Platform - Scalable Cloud-Native Architecture
Enterprise-grade e-commerce platform built with microservices architecture, handling high-traffic operations with resilience and scalability.
Key Features:
- 🏗️ Microservices Architecture: 12+ independent services (Product Catalog, Orders, Payments, Inventory, User Management, Notifications)
- 🔄 Event-Driven Communication: Kafka-based event streaming for real-time data synchronization across services
- 🔐 Security & Auth: JWT-based authentication with OAuth2.0, role-based access control (RBAC)
- 💳 Payment Integration: Stripe and PayPal integration with PCI-DSS compliance
- 📊 Real-time Analytics: ELK stack for logging and monitoring, Prometheus + Grafana for metrics
- 🚀 High Availability: Auto-scaling groups, load balancing, circuit breakers, and retry mechanisms
- 🐳 Containerization: Docker containers orchestrated with Kubernetes (EKS)
- 📦 Database Per Service: PostgreSQL, MongoDB, Redis for optimized data storage patterns
Impact:
- ✅ Handles 10M+ requests/day with 99.9% uptime
- ✅ Reduced deployment time by 70% with CI/CD pipelines
- ✅ Improved response time by 60% through caching and optimization
- ✅ Scaled to support 100K+ concurrent users during peak traffic
Tech Stack: Node.js, TypeScript, NestJS, Express.js, Kafka, PostgreSQL, MongoDB, Redis, Docker, Kubernetes, AWS (Lambda, ECS, RDS, DynamoDB, S3, SQS), Terraform, Jest, Swagger
Architecture Highlights: API Gateway Pattern, CQRS, Event Sourcing, Saga Pattern, Circuit Breaker, Service Discovery
🧹 Mark and Sweep Algorithm - GC Implementation
Educational implementation of the Mark and Sweep garbage collection algorithm with visual demonstrations.
Key Features:
- 🔍 Complete Mark and Sweep GC implementation with object graph management
- 🎨 ASCII visualization of memory states and GC phases
- 🎮 Interactive demos showing real-time garbage collection
- ✅ Comprehensive test suite with pytest
- 📚 Educational quickstart guide and documentation
Learning Outcomes:
- Memory management fundamentals
- Graph traversal algorithms (DFS for marking)
- Object lifecycle and reference counting
- Garbage collection optimization techniques
Tech Stack: Python, pytest, Object-Oriented Design
| 📖 View Project | 🎮 Try Interactive Demo |
🔧 Open Source Contributions
UniCache - Universal Caching Library
Role: Core Contributor & Maintainer
Developed production-ready NPM package providing unified interface for multiple caching backends with singleton pattern implementation.
Features:
- 🔄 Support for Memcached, Redis, and In-memory caching
- 🎯 Singleton pattern ensuring consistent cache instance across application
- ⚙️ Flexible configuration with connection pooling
- 🔐 Type-safe TypeScript definitions
- ✅ Comprehensive test coverage
Impact: Used in production by multiple applications handling millions of cache operations daily.
NPM Package: @truesparrow/unicache
OST Blockchain Ecosystem - Web3 Infrastructure
Contributed to multiple repositories in the OST blockchain ecosystem:
- OST Cache: High-performance caching library optimized for blockchain data
- OST Block Scanner: Real-time blockchain monitoring and transaction validation tool
- OST View: Blockchain data visualization and analytics platform
Contributions:
- Implemented efficient data structures for blockchain state management
- Optimized database queries for historical transaction lookups
- Built real-time event processing with WebSocket subscriptions
- Created monitoring dashboards for blockchain network health
📚 Publications & Research
Academic Publications & Research
📄 Green Cloud Metrics - Sustainability Analytics Platform
| Research Paper: “Green Computing in Azure Cloud Environments: A Comprehensive Analysis” | January 2026 |
A comprehensive 35-page academic research paper exploring sustainability in cloud computing, with accompanying implementation.
Research Highlights:
- 📊 Systematic analysis of energy consumption patterns in Azure cloud infrastructure
- 🌍 Novel metrics for measuring carbon emissions and sustainability in cloud environments
- ⚡ Empirical methodologies for real-time energy and carbon tracking
- 📈 Optimization strategies demonstrating 34.8% energy reduction and 42.7% carbon emission reduction
-
🔬 Pages: 35 Words: 12,500+ References: 20 academic sources
Implementation Features:
- Automated Azure resource discovery (VMs, Storage, Databases)
- Real-time energy consumption calculations based on CPU/Memory utilization
- Region-specific carbon intensity tracking
- Multi-format reporting (Console, JSON, HTML, CSV)
- CLI tool with sustainability scoring
Tech Stack: Python, Azure SDK, Azure Monitor API, Pandas, Jinja2, Rich, Click
| 📄 Read Full Paper (PDF) | 💻 View Implementation |
Technical Blog Posts
🐰 Introduction to RabbitMQ
Published on Medium @ Globant
Comprehensive guide to message queuing with RabbitMQ covering:
- Core concepts: Exchanges, Queues, Bindings, Routing
- Exchange types and use cases
- Message durability and reliability patterns
- Performance optimization techniques
- Real-world implementation examples
Topics: Microservices, Event-Driven Architecture, Asynchronous Processing, Message Queues
🛠️ Technical Skills
Programming Languages
Backend Frameworks & Runtime
Databases & Data Stores
AWS Cloud Services
Azure Cloud Services
Testing & Quality Assurance
AI & Data Engineering
Build & Tooling
DevOps & Infrastructure
Monitoring & Logging
Messaging & Orchestration
Frontend & Web Technologies
Cloud-Native & Serverless Tools
Blockchain & Web3
Additional Tools
🎯 Methodologies & Best Practices
- Agile & DevOps: Agile, Scrum, SAFe, Kanban, Extreme Programming (XP), DevOps, CI/CD Pipelines
- Development Practices: Test-Driven Development (TDD), Pair Programming, Code Reviews, Shift-Left Testing
- Architecture Patterns: Microservices, Serverless, Cloud-Native, Event-Driven/SOA, CQRS, Saga Pattern, Hexagonal Architecture
- Infrastructure: Infrastructure as Code (IaC), GitOps, Immutable Infrastructure, Blue-Green Deployments
- Design Principles: SOLID, DRY, KISS, YAGNI, Domain-Driven Design (DDD), API-First Design
- Performance & Scalability: Caching Strategies, Database Optimization, Load Balancing, Horizontal Scaling, Circuit Breakers
📫 Let’s Connect!
I’m always interested in discussing:
- ☁️ Cloud Architecture and scalability challenges
- 🏗️ Microservices & Event-Driven Systems design patterns
- 🔗 Distributed Systems and high-performance computing
- 🛠️ Open Source Collaboration and community projects
- 💼 Career Opportunities in backend engineering and cloud architecture
Reach out:
- 💼 LinkedIn: dhananjay08patil
- 🐦 Twitter: @dsp__8
- 📧 Email: dhananjay.pict@gmail.com
- 💻 GitHub: dhananjay8