@@ Engineering Leader | Government Tech Specialist | Scale Architect @@
+ Built India's FIRST Wallet-Based Metro Card (Google Wallet Certified)
+ Architected Systems Processing 10M+ Daily Transactions
+ Led Pan-India Metro Digital Infrastructure (Mumbai, Hyderabad, Pune, Nagpur)
+ 150 TPS Flash Sale Architecture | 99.99% SLA Uptime
! "From Fitness Apps to National Transit Systems - I Build at Scale"
const nilava = {
currentRole: "Head of Engineering @ Billeasy",
previousRoles: ["Tech Lead @ udChalo", "Software Engineer @ StepSetGo"],
experience: "5+ years building mission-critical systems",
expertise: {
scale: ["10M+ daily transactions", "150 TPS systems", "99.99% SLA"],
mobile: ["React Native", "iOS/Android Native", "100K+ downloads"],
backend: ["Microservices", "Kubernetes", "Node.js", "gRPC"],
infrastructure: ["AWS/GCP", "Docker", "Kafka", "Redis", "PostgreSQL"],
security: ["SSL Pinning", "PCI Compliance", "Cryptographic Systems"],
payments: ["Google Wallet NFC", "UPI", "Payment Gateways"]
},
achievements: {
"🚇": "Built India's FIRST wallet-based metro card with Google",
"🎫": "Deployed QR ticketing for 4 major metros (CDAC compliant)",
"🚢": "Architected complete AFC system for Maharashtra ferries",
"✈️": "Launched udChalo app - 100K downloads in 6 months",
"🏃": "Led fitness vertical processing millions of steps daily",
"🔒": "Zero security breaches across all platforms"
},
partnerships: ["Google Wallet Certified", "Meta WhatsApp Business", "Government of India"],
philosophy: "Build systems that scale to millions, not thousands"
};- 🚇 Metro Networks: Architecting digital infrastructure for Mumbai, Hyderabad, Pune, Nagpur metros
- 🚢 Maritime Board: Complete ticketing solution for Maharashtra ferry network
✈️ Armed Forces: Built mobile platform serving 100K+ defense personnel- 🍔 Enterprise: Scaled Tim Hortons & Belgian Waffle for national flash sales
- 🏆 India's First NFC Metro Card: Pioneered wallet-based metro card with Google Wallet integration using NXP MIFARE standards - Set National Benchmark for digital fare collection
- 🚇 Pan-India Metro Infrastructure: Deployed CDAC-compliant QR ticketing across Mumbai, Hyderabad, Pune, Nagpur metros - Millions of daily rides with 99.99% uptime
- 🚢 Maharashtra Ferry System: Built complete AFC system with WhatsApp ticketing & operator apps - Entire state network digitized
- ⚡ Enterprise Flash Sales: Migrated monolith to microservices for Belgian Waffle & Tim Hortons - 150 TPS on National Waffle Day
✈️ Defense Personnel App: Led complete mobile app development for armed forces flight booking - 100K+ downloads, 4.5★ rating in 6 months
- 🏃 Fitness Ecosystem: Built native modules & integrated 15+ wearable devices - 10M+ daily events, 98% accuracy
- 🔒 Security Infrastructure: Implemented SSL pinning, PCI compliance, fraud detection - Zero breaches, 90% fraud reduction
- Team Size: Led cross-functional teams of 15+ engineers
- User Scale: Systems serving millions of daily active users
- Transaction Volume: 10M+ daily transactions across platforms
- Availability: Maintained 99.99% SLA for critical infrastructure
- Partnerships: Google Wallet, Meta WhatsApp, Government of India
- Cost Optimization: Reduced infrastructure costs by 40% through optimization
graph LR
A[2020: Application Developer<br/>StepSetGo] --> B[2021: Software Engineer<br/>StepSetGo]
B --> C[2024: Technical Team Lead<br/>udChalo]
C --> D[2025: Head of Engineering<br/>Billeasy]
style A fill:#f9f,stroke:#333,stroke-width:2px
style B fill:#bbf,stroke:#333,stroke-width:2px
style C fill:#9cf,stroke:#333,stroke-width:2px
style D fill:#9f9,stroke:#333,stroke-width:2px
- 🏢 Billeasy (Current) - Head of Engineering - Building nation-scale transit infrastructure
- 🏢 udChalo (1 Year 6 months) - Tech Lead - Launched defense personnel app (100K+ users)
- 🏢 StepSetGo (3+ years) - Software Engineer - Scaled fitness platform to millions
- Expertise: Kubernetes, Microservices, Event-Driven, gRPC
- Real-World: Built systems handling 10M+ daily transactions
- Expertise: React Native, Swift, Kotlin, Native Modules
- Real-World: 100K+ app downloads, 4.5+ star ratings
- Expertise: AWS, GCP, Docker, Istio, ArgoCD, Helm
- Real-World: 99.99% uptime on critical infrastructure
- Expertise: SSL Pinning, PCI DSS, CDAC, Cryptography
- Real-World: Zero security breaches across all platforms
- Expertise: Google Wallet NFC, UPI, Payment Gateways
- Real-World: India's first wallet-based metro card
- Expertise: Kafka, Redis, PostgreSQL, Sharding
- Real-World: 150 TPS flash sale architecture
- Expertise: Team Management, Stakeholder Management, Mentoring
- Real-World: Led teams of 15+ engineers on government projects
- 🔵 Google Wallet Partner - Certified for closed-loop Tap & Pay NFC implementation
- 🟢 WhatsApp Business API - Official Meta partner for transit ticketing integration
- 🇮🇳 CDAC Compliance - Government of India QR ticketing infrastructure certification
- ☁️ AWS Solutions Architect - Cloud architecture and scalability certification
- 🔒 PCI DSS Compliance - Payment card industry data security standards
Current Initiatives:
- 🚇 Pan-India Metro Digital Expansion
- 🎫 Next-Gen NFC Payment Systems
- 📊 Real-time Transit Analytics Platform
Research Areas:
- 🤖 AI-powered fraud detection systems
- 🔗 Blockchain for secure ticketing
- 📡 IoT sensor networks for crowd management
React Native ████████████░░░░░░ 48.2%
TypeScript ██████░░░░░░░░░░░░ 25.7%
JavaScript ████░░░░░░░░░░░░░░ 16.3%
Swift ██░░░░░░░░░░░░░░░░ 8.2%
Other ░░░░░░░░░░░░░░░░░░ 1.6%
technical_depth:
- "I've built systems handling 10M+ daily transactions"
- "Architected solutions from startup (100 users) to nation-scale (millions)"
- "Deep expertise in both mobile native and backend infrastructure"
leadership:
- "Led teams through critical government project deliveries"
- "Mentored engineers from junior to senior levels"
- "Bridge between technical complexity and business objectives"
innovation:
- "First in India to implement wallet-based metro cards"
- "Pioneered integration patterns now used as national standards"
- "Active contributor to open-source and tech communities"
business_impact:
- "Reduced operational costs by 40% through architecture optimization"
- "Achieved 99.99% uptime for mission-critical systems"
- "Delivered projects serving millions with zero security breaches"
partnerships:
- "Secured Google Wallet certification for national infrastructure"
- "Established Meta WhatsApp Business integration for government"
- "Built trusted relationships with government stakeholders"
delivery:
- "Consistent on-time delivery of complex projects"
- "Experience with compliance (CDAC, PCI DSS)"
- "Proven track record in high-pressure environments"
Enterprise Architecture | Government Projects | Technical Leadership | Scale Challenges