A Story of
Dawood Ali Shaik
Python Backend Developer
Python Backend Developer with 4+ years of experience designing and delivering scalable REST APIs and microservices using FastAPI and Flask. Proven track record of measurable impact: 43% reduction in API latency, 30% improvement in backend performance, and 60% reduction in invalid API requests through strict validation. Skilled in PostgreSQL query optimization, Docker-based deployments, GitLab CI/CD automation, and multithreaded execution systems. Experienced across AWS and Microsoft Azure cloud environments, with a strong record of cross-functional collaboration and production-grade code delivery in Agile teams. Core Stack: Python • FastAPI • Flask • Flask-RESTX • REST APIs • Microservices • PostgreSQL • Oracle/SQL • Docker • AWS • Azure • GitLab CI/CD
Experience
System Engineer
Tata Consultancy Services · Chennai
Oct 2022 — Present
- Architected and shipped scalable RESTful microservices in Python (Flask, FastAPI) powering enterprise applications across multiple business units
- Boosted backend performance by 30% by refactoring service layers, optimizing data serialization pipelines, and rewriting inefficient SQL queries
- Accelerated PostgreSQL query execution by 25% through strategic indexing, query plan analysis, and schema normalization
- Reduced API error rates by enforcing structured validation and standardized error responses using Flask-RESTX namespaces
- Containerized microservices using Docker and orchestrated multi-service environments with Docker Compose, enabling zero-config environment parity across development, staging, and production
- Automated CI/CD pipelines on GitLab, cutting manual deployment steps and ensuring consistent, repeatable releases
- Cut production incident resolution time by 35% by introducing structured logging, centralized error tracking, and real-time monitoring dashboards
Skills
Education
B.Tech in Electronics and Communication Engineering
Annamacharya Institute of Technology & Science · Tirupati
2019 — 2022
Diploma in Electronics and Communication Engineering
S.V. Government Polytechnic College · Tirupati
2016 — 2019