Sai Pavan Phaneendra Vaddi

Software Engineer

Tadepalligudem, Andhra Pradesh, India1 yr 1 mo experience

Key Highlights

Expert in full-stack development with Django and React.
Proven experience in cloud deployment and infrastructure management.
Strong background in API development and optimization.

Stackforce AI infers this person is a Backend-heavy Fullstack Developer in the SaaS industry.

Contact

Skills

Core Skills

Full-stack DevelopmentBackend EngineeringDjango Rest FrameworkCloud InfrastructureCloud DeploymentDatabase Design

Other Skills

Production DeploymentBackend EngineerAPI DevelopmentThird-Party API IntegrationDevOpsSecurityAWSPostgreSQLWhatsApp APIFirebaseDjangoReal-time CommunicationPaytmRazorpayVue.js

About

I am a Software Engineer – Full Stack with hands-on experience in building, deploying, and scaling production-grade web applications using Django REST Framework and React. At Lotez Technologies, I work on end-to-end application development—designing secure backend APIs, building React-based admin dashboards, and deploying cloud-native solutions on AWS. My experience includes: • Full-stack development with Django, DRF, and React • Secure REST APIs with JWT authentication • Admin panels for service provider management • Asynchronous processing using Celery & Redis • CI/CD automation using GitHub Actions & Jenkins • Dockerized deployments with Nginx & Gunicorn • Monitoring & logging with Prometheus, Grafana, Loki, CloudWatch • Cloud infrastructure on AWS & Azure I enjoy solving backend-heavy problems, optimizing system performance, and working with DevOps practices to deliver reliable and scalable solutions. Open to opportunities in: Software Engineer | Full Stack Developer | Backend Engineer

Experience

1 yr 1 mo

Total Experience

1 yr 1 mo

Average Tenure

1 yr 1 mo

Current Experience

Lotez technologies private limited

2 roles

Software Engineer

Apr 2025 – Present · 1 yr 1 mo · Hybrid

Production DeploymentBackend EngineerFull-stack DevelopmentBackend Engineering

Software Development Intern

Jan 2025 – Mar 2025 · 2 mos · Hybrid

Major Duties and Responsibilities
1. API Development & Backend Engineering
Designed and implemented RESTful APIs using Django REST Framework.
Managed data models, serializers, and role-based views for scalable API endpoints.
2. Cloud Deployment & Infrastructure Management
Deployed and managed projects on AWS EC2 with Nginx and Gunicorn.
Configured Route 53, S3, CloudFront, and WAF for DNS, storage, CDN, and security.
3. Database Design & Optimization
Created optimized, normalized schemas in PostgreSQL and MySQL.
Tuned SQL queries, achieving up to 40% performance improvement.
4. Third-Party API Integration
Integrated real-time communication tools: Firebase Cloud Messaging, WhatsApp Business API, Twilio (SMS), SendGrid (email).
5. DevOps & Automation
Built CI/CD pipelines using Jenkins.
Used Terraform for provisioning cloud resources and managing infrastructure as code.
6. Security & Notification Systems
Secured APIs using JWT authentication.
Implemented multi-channel notification systems for user engagement and event tracking.
Key Successes & Achievements
Religious Service Provider Platform
Developed a complete backend system with JWT-secured login and service booking flow.
Integrated WhatsApp and FCM to notify users in real time about service confirmations.
Deployed on AWS using Nginx + Gunicorn and achieved a 40% performance boost through SQL query optimization.
Apartment Management System
Built a multi-role dashboard for owners, tenants, and admins to manage payments, complaints, and visitor logs.
Designed a normalized PostgreSQL schema, reducing data redundancy by 25%.
Enabled communication across channels (WhatsApp, SMS, email, push) for seamless user alerts.