Hello Techies : Lead Sr. Software Engineer @ Wells Fargo · Ex-PayPal, VISA, NPCI (UPI), Verizon · Founder, HackerAlgo.io · Tech YouTuber ☕ Languages and core Java 8 / 11 / 17 / 21 (LTS) · Java 25 (exploring newer releases) · Python (scripting) · JavaScript · SQL · HTML / CSS 🌱 Backend and frameworks Spring Boot 3.x (exploring 4.x) · Spring Cloud · Spring Data JPA · REST APIs · gRPC · Microservices · Event-driven architecture · Maven · Flyway 🏛️ Architecture and design System design (HLD/LLD) · Distributed systems · Microservices scaling · Legacy modernization and data migration (Oracle → PostgreSQL, legacy → MongoDB) · API design · Apigee API gateway 💳 Payments and FinTech domain NPCI UPI and BBPS (transaction processing, clearing and settlement, reconciliation) · PayPal Risk & Credit (Consumer Credit, Merchant, Venmo, Pay Later) · Wells Fargo payment platforms · FICO decision engine and credit platforms · Payment simulators and frameworks 📨 Messaging and streaming Apache Kafka · Kafka Connect · AWS SQS / SNS 🗄️ Databases and caching PostgreSQL · Oracle · MySQL · MongoDB · Amazon DynamoDB · Redis ☁️ Cloud AWS (EC2, EKS, ECS, Lambda, S3, IAM, ELB, CloudFormation, CloudWatch, SNS, SQS) · Microsoft Azure (AZ-900 certified) · Google Cloud (GCP) 🐳 DevOps and CI/CD Docker · Kubernetes · Jenkins · Argo CD · Harness · UrbanCode Deploy (UCD) · Git / GitHub 📊 Observability and monitoring Datadog · AppDynamics · Splunk · Kibana (ELK) · APM dashboards · JVM metrics · Distributed tracing · Root-cause analysis 🔐 Security and code quality Black Duck (open-source and dependency scanning) · SonarQube (static code analysis and quality gates) · Secure API design 🧪 Testing and automation JUnit · TestNG · Mockito · Rest Assured (API automation) · Selenium (UI automation) · JMeter (load and performance testing) · Contract and integration testing ⚡ Performance engineering JVM tuning (GC, heap, threads) · Profiling · Query optimization · Caching · Async processing · Low-latency, high-throughput APIs 🤖 AI and productivity Agentic AI coding: Claude, Claude Code, ChatGPT, OpenAI Codex, Cursor, GitHub Copilot, Augment Code · LLM fundamentals · AI/ML basics · Prompt engineering for code generation, refactoring, testing and documentation 🎨 Frontend Angular · React.js 👥 Leadership Led and mentored teams of 6–12 engineers · Code review standards · Technical leadership · Agile delivery · Stakeholder collaboration