Stack Developer React Js

Yaswanth Chakiri

Phone: 540-***-****

******************@*****.***

Portfolio: yaswanth_chakiri

GitHub: https://github.com/yaswanth1316

LinkedIn: https://www.linkedin.com/in/yaswanth-chakiri-143980246/ PROFESSIONAL SUMMARY

• Full Stack Developer with 3+ years of experience building scalable web applications using Python (Django, Flask), JavaScript (React.js), Angular, PostgreSQL, and AWS.

• Skilled in designing secure RESTful APIs and microservices with Django REST Framework, integrating real-time features via Celery, Redis Pub/Sub, and WebSockets.

• Proficient in frontend development using React.js with Redux Toolkit and TypeScript, delivering responsive and user- friendly interfaces with modern UI practices.

• Experienced with cloud-native deployments on AWS and Azure using Docker, Kubernetes, GitHub Actions, and Jenkins, with strong CI/CD and infrastructure automation skills.

• Strong foundation in Data Structures and Algorithms, with proven experience applying them to optimize SQL/NoSQL database queries, backend services, and high-performance application workflows.

• Adept at optimizing databases, ensuring API efficiency, and conducting comprehensive testing (PyTest, Postman, Jest) to ensure reliability and performance.

• Collaborative team player with Agile experience, code review leadership, strong documentation habits, and a passion for continuous learning and technical innovation.

TECHNICAL SKILLS

Languages Python (3.x), JavaScript (ES6+), TypeScript, Java, C, C# Python Frameworks Django, Django REST Framework (DRF), Flask, FastAPI, Celery, Flask-SocketIO, Django Channels

Frontend Technologies React.js (Hooks, Redux Toolkit), Angular, Vue.js, HTML5, CSS3, SCSS, Bootstrap, Material UI, Responsive Design, Cross-Browser Compatibility, WCAG 2.1 Accessibility

API Development & Integration RESTful APIs, GraphQL, WebSockets, gRPC, Third-Party API Integration (Stripe, PayPal, AWS SDK), OAuth2, JWT Authentication

Databases PostgreSQL, MySQL, MongoDB, SQLite3, Redis, DynamoDB, Cassandra Cloud & DevOps AWS (EC2, S3, RDS, Lambda, CloudFront, CloudWatch), Azure App Services, Docker, Kubernetes, GitHub Actions, Jenkins, GitLab CI/CD Real-Time Features & Messaging WebSockets, Django Channels, Redis Pub/Sub, RabbitMQ, Celery task queues, Event-Driven Architecture

Testing & QA PyTest, Django Test Client, Postman, Mocha & Chai, Jest, Cypress Security & Compliance CSRF/XSS prevention, SQL Injection mitigation, HTTPS/SSL, HIPAA Compliance, Data Encryption, AWS IAM Role Management

Performance Optimization Caching layers (Redis, Flask-Caching, Django Cache), Query tuning, Async I/O in Python, API load testing with JMeter and Locust

Version Control & Collaboration Git (GitHub, GitLab, Bitbucket), Jira, Confluence, Agile/Scrum methodologies, Code Review Best Practices

PROFESSIONAL EXPERIENCE

NYU Health May 2024-Present

Full Stack Developer

NYU Health is a leading academic medical center and healthcare provider, offering comprehensive patient care, cutting-edge medical research, and advanced clinical training. The organization is recognized for delivering high-quality, patient-centered services while leveraging innovative technology to improve healthcare outcomes. Project Description:

The Patient Management Platform is a HIPAA-compliant healthcare web application designed to streamline patient record management, appointment scheduling, and billing processes for clinics and hospitals. The platform’s backend is powered by Django REST Framework microservices, ensuring secure, scalable, and high-performance API delivery, while the Angular frontend provides dynamic, responsive dashboards for clinical staff and administrators. Integrated with PostgreSQL, Redis caching, and AWS cloud services (EC2, RDS, S3), the system supports real-time data synchronization, secure document storage, and advanced role-based access controls. Real-time communication is enabled through Django Channels and WebSockets, allowing instant clinical notifications and updates. Automated CI/CD pipelines using Jenkins and GitHub Actions ensure seamless deployments, while comprehensive unit and integration testing maintain high system reliability and compliance with healthcare regulations.

Responsibilities:

• Designed and implemented HIPAA-compliant Django REST Framework microservices integrated with Angular dashboards for a Patient Management Platform, streamlining patient record management, appointment scheduling, and billing workflows, resulting in a 30% reduction in manual processing time for clinical staff.

• Developed dynamic and reusable Angular components with reactive forms, RxJS, and custom directives for real-time patient data entry and validation, connected to secure Django REST APIs to ensure seamless backend communication and high system reliability.

• Introduced Celery with Redis as a message broker to offload long-running tasks (report generation, bulk data imports, PDF creation, audit log processing), reducing perceived latency for end users and improving API P95 response stability during peak traffic.

• Optimized PostgreSQL performance by refactoring ORM queries, adding targeted indexes, and layering Redis caching

(plus Celery-driven cache warmers) to cut average API response times by 25% during peak usage.

• Implemented robust authentication and authorization using DRF + JWT and role-based access controls, with Celery tasks handling token blacklisting/cleanup and periodic security audits to maintain HIPAA compliance.

• Leveraged AWS services (EC2, RDS, S3) to deploy Django apps and securely store encrypted medical documents; used Celery beat for scheduled S3 lifecycle checks, archival jobs, and integrity verifications under IAM-restricted roles.

• Containerized Django, Celery workers/beat, and Angular with Docker; wired end-to-end CI/CD via Jenkins and GitHub Actions to build, test, and roll out web, worker, and scheduler images in lockstep, reducing deployment errors and release time.

• Built admin dashboards in Angular Material for operations and compliance teams, surfacing Celery task health/throughput (via API endpoints and Flower metrics), patient flow analytics, and real-time operational KPIs.

• Collaborated with UX/UI to translate Figma wireframes into pixel-perfect Angular components; instrumented async UX

(toasts/spinners/websocket updates) to reflect Celery task states and deliver responsive feedback on background operations.

• Implemented real-time clinical notifications using Django Channels + WebSockets; routed heavy notification fan-outs

(email/SMS/in-app) through Celery task queues with automatic retries, exponential backoff, and dead-letter handling.

• Hardened observability and reliability with structured logging, Celery task tracing, and alerting on retries/timeouts; added idempotency keys and task de-duplication to prevent duplicate processing during spikes.

• Achieved 95%+ coverage across core modules with PyTest (backend), Jasmine/Karma (frontend), and added Celery task unit/integration tests (eager mode + broker-backed) to ensure deterministic behavior and production stability. Dentsu July 2021-Dec 2022

Full Stack Developer

Dentsu is a global marketing, advertising, and digital transformation leader, delivering integrated media, creative, and technology solutions to brands across multiple industries. Operating in over 145 countries, the company helps clients drive growth through data-driven marketing strategies, innovative digital experiences, and cutting-edge customer engagement platforms.

Project Description:

The E-Commerce Platform is a full-stack web application built with Django REST Framework and React.js, designed to handle product management, customer accounts, secure payments, and real-time order tracking. The backend leverages Django ORM, PostgreSQL, and Redis for efficient data handling, caching, and high-performance API delivery, while the frontend uses React Hooks, Redux Toolkit, and Material UI to provide an intuitive, responsive shopping experience. The system integrates Stripe and PayPal payment gateways with real-time webhook handling, and employs Django Channels for live order status updates. Hosted on AWS (EC2, S3, CloudFront) with containerized deployments via Docker Compose, the platform uses automated CI/CD pipelines in Jenkins and GitHub Actions to ensure reliable, secure, and fast release cycles. Responsibilities:

• Designed and developed a scalable, customer-facing e-commerce platform using Django REST Framework for the backend and React.js for the frontend, ensuring modularity, maintainability, and performance optimization. Implemented a microservices-aligned architecture to handle user accounts, orders, product catalog, and payments, which improved overall system reliability by 30%.

• Architected and implemented modular RESTful APIs in Django using class-based views, serializers, and routers to handle complex business workflows including order creation, payment authorization, and refund processing. Integrated Stripe and PayPal payment gateways with real-time webhook handling, ensuring secure transaction processing and automated order status updates.

• Implemented robust authentication and authorization layers using JWT tokens, Django REST Framework permissions, and role-based access controls. Enhanced API security with CSRF protection, input validation, and request throttling, safeguarding customer data and ensuring compliance with industry security standards.

• Optimized backend database interactions by leveraging Django ORM best practices, adding strategic indexes, and fine- tuning querysets to reduce response latency by 25%. Deployed Redis caching for frequently accessed product, order, and user data to further improve load times under high traffic conditions.

• Developed a real-time notification and order tracking system using Django Channels and Redis Pub/Sub to push instant updates to customers and administrators for critical events such as payment confirmations, shipment status changes, and promotional alerts.

• Designed intuitive checkout flows with React Hooks, Redux Toolkit, and client-side form validation to provide a seamless purchasing experience. Implemented dynamic pricing updates, address autocomplete, and instant payment verification to improve conversion rates.

• Enhanced application security with server-side input sanitization, cross-site scripting (XSS) prevention, SQL injection safeguards, and centralized logging via Django’s logging framework for effective monitoring and debugging.

• Deployed and maintained containerized services for the Django backend, React frontend, MySQL database, and Redis cache using Docker Compose. Standardized development and testing environments to ensure consistent builds and simplify onboarding for new developers.

• Automated CI/CD pipelines with Jenkins and GitHub Actions to build, test, and deploy both backend and frontend services, reducing deployment errors and accelerating release cycles.

• Integrated AWS services including S3 for secure file storage, EC2 for backend hosting, and CloudFront for optimized content delivery. Configured IAM roles and bucket policies to ensure strict access controls for sensitive assets.

• Built admin dashboards using React and Material UI for internal teams to manage product inventory, monitor sales analytics, and review payment activity. Integrated APIs with Swagger documentation to improve QA, onboarding, and cross- team collaboration.

• Conducted rigorous testing using PyTest for backend logic and Jest/React Testing Library for frontend components, maintaining 85%+ coverage on critical features and ensuring high reliability in production. Projects:

DiagnoSym – Health Assistant:

Technologies: React, Django, Python, SQLite3, Git

• Engineered a health assistant web application leveraging machine learning algorithms for disease prediction, achieving an accuracy rate of 93.2% in model testing.

• Integrated Natural Language Processing (NLP) for user input analysis, enabling conversational symptom reporting and improving diagnostic accuracy by 15%.

• Managed the full project lifecycle using Jira for sprint tracking and GitHub for version control, ensuring smooth collaboration and on-time delivery of features.

BiographyNook – Bookstore Platform

Technologies: Vue.js, Flask, Python, MySQL, REST API, TypeScript

• Developed a responsive bookstore platform with a Vue.js front-end integrated with Spring Boot REST APIs for inventory management, user authentication, and order processing, ensuring a seamless user experience and system reliability.

• Optimized MySQL database performance through indexing and query restructuring, reducing page load times by 15% while efficiently managing over 200 books, user accounts, and transactions. Education Details:

Masters in Computer Science

University: Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA – 2024

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