Punit Kumar B.

Experience & Track Record: ✅ 10+ Years of Experience — Delivering end-to-end digital products that scale 🏆 100+ Projects Delivered — 20 on Upwork, 80+ for global clients 💯 100% Job Success Rate — Consistent client satisfaction & repeat business ⏰ 2,400+ Hours on Upwork — Trusted by teams across the US, Europe & APAC 🌍 Strong Portfolio — Websites, Mobile Apps & Enterprise Platforms I specialize in building scalable SaaS products and full-stack applications that are fast, reliable, and easy to maintain. My work spans product architecture, cloud development, API design, data engineering, and AI integration across web and mobile platforms. What I Do Best: ⚙️ Solution Architecture & Technical Planning 💻 Full-Stack Web & Mobile Development 🔗 API Design & Third-Party Integrations 📊 Data Engineering & Analytics Enablement ☁️ Cloud-Native Development & DevOps Automation ⚡ Performance, Scalability & Optimization Domain Expertise: 💡 SaaS & Multi-Tenant Platforms 💳 Fintech & FinOps Workflows (billing, reconciliation, subscriptions) 🛒 E-Commerce & Marketplaces 📈 Data Integration & BI Dashboards 🤖 Process Automation for Ops, Sales & Support ✉️ CRM, MarTech & Internal Tools Tech Stack: ✅ Languages & Frameworks: JavaScript, TypeScript, React, Next.js, Node.js (Express, NestJS), Python (FastAPI, Django), Java (Spring Boot) ✅ SQL Databases: PostgreSQL, MySQL ✅ NoSQL: MongoDB, Redis, Elasticsearch ✅ Cloud: AWS, GCP, Azure ✅ Containers & IaC: Docker, Kubernetes, Terraform ✅ CI/CD: GitHub Actions, GitLab CI, CircleCI ✅ Data Tooling: Airflow, dbt, Kafka ✅ Analytics Warehouses: Snowflake, BigQuery, Redshift ✅ Messaging & Queues: SQS, RabbitMQ, Kafka ✅ Testing: Jest, PyTest, Cypress, Playwright ✅ Monitoring & Logging: Prometheus, Grafana, ELK, Datadog ✅ Auth: OAuth2, OpenID Connect, JWT, Auth0 ✅ Payments: Stripe ✅ Mobile: React Native 💼 Why Clients Hire Me I bridge business context with engineering depth, translating ideas into robust architectures that evolve with growth. From MVPs to full-scale systems, I deliver clean, maintainable solutions that perform. 💬 Ready to discuss your next build or migration? Let’s talk about your goals and map the smartest path forward. Search me with below keyword: [SaaS Development, Full-Stack Developer, Software Architect, Product Engineering, API Development, Web Application Development, Cloud Application Development, MVP Development, Software Modernization, System Design, Microservices Architecture, DevOps Engineer, Backend Development, Frontend Development, JavaScript, TypeScript, React, Next.js, Node.js, Express, NestJS, Python, FastAPI, Django, Java, Spring Boot, PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch, REST APIs, GraphQL, React Native, Stripe API, OAuth2, Auth0, JWT]