Full-stack developer - Python

Tata Consultancy Services; Sunnyvale (CA); On-site; USD 90,000 - 121,000; Full time

Job summary

Tata Consultancy Services in Sunnyvale, CA is seeking a Python Backend Developer to design, build, and maintain high-performance cloud applications with robust server-side logic and secure APIs. You will collaborate with frontend teams, product managers, and DevOps to deliver scalable microservices powering core platforms.

Responsibilities include system design, API development, database optimization, security, testing, CI/CD, and performance tuning to ensure scalable and reliable services.

Qualifications

• Experience in distributed backend system design and scalability.
• Strong knowledge of Python 3.10+ and asyncio.
• Hands-on with FastAPI, Django or Flask web frameworks.
• Relational databases and ORM tooling (SQLAlchemy, Django ORM).
• Experience with RESTful API design and secure services.
• Proficient with testing (Pytest, unittest) and CI/CD basics.

Responsibilities

• System Design: Architect and scale distributed backend systems that handle high traffic, concurrency, and data throughput.
• API Development: Design, develop, and maintain high-throughput, secure RESTful APIs and microservices.
• Database Management: Optimize database schemas, write complex SQL queries, and manage data persistence using ORM frameworks.
• Security & Auth: Implement and maintain robust security protocols for authentication and authorization.
• Testing Automation: Write comprehensive unit, integration, and regression test suites to ensure high code quality.
• CI/CD & Cloud: Package applications into containers and assist in deploying services to cloud infrastructure.
• Performance Tuning: Troubleshoot, debug, and optimize application performance, memory leaks, and query bottlenecks.

Skills

System Design

Data Structures & Algorithms

Core Python

Python Ecosystem

Databases

API Design

Build & Test Tools

Version Control

Tools

FastAPI

Django

Flask

Pytest

SQLAlchemy

Git

SQL Server

PostgreSQL

MySQL

Job description

Job Description

Must Have Technical/Functional Skills

Digital : Python; FastAPI; Django; flask; Pytest; system design, Digital : Python; FastAPI; Django; flask; Pytest; system design

Roles & Responsibilities

We are seeking a talented and motivated Python Backend Developer to design, build, and maintain our high-performance cloud applications. In this role, you will focus on building robust server-side logic, developing secure APIs, and managing data persistence layers. You will collaborate closely with frontend engineers, product managers, and DevOps teams to deliver scalable microservices that power our core business platforms.

Key Responsibilities

• System Design: Architect and scale distributed backend systems that handle high traffic, concurrency, and data throughput.
• API Development: Design, develop, and maintain high-throughput, secure RESTful APIs and microservices.
• Database Management: Optimize database schemas, write complex SQL queries, and manage data persistence using ORM frameworks.
• Security & Auth: Implement and maintain robust security protocols for authentication and authorization.
• Testing Automation: Write comprehensive unit, integration, and regression test suites to ensure high code quality.
• CI/CD & Cloud: Package applications into containers and assist in deploying services to cloud infrastructure.
• Performance Tuning: Troubleshoot, debug, and optimize application performance, memory leaks, and query bottlenecks.

Generic Managerial Skills/Required Skiils

Required Skills & Qualifications

• System Design: Proven experience with distributed systems design, load balancing, caching strategies, and system scalability.
• Data Structures & Algorithms: Strong foundational knowledge of data structures (trees, graphs, hash maps) and algorithms to write highly efficient code.
• Core Python: Deep knowledge of Python 3.10+, handling async programming (asyncio), and memory management.
• Python Ecosystem: Hands-on experience with modern web frameworks like FastAPI, Django, or Flask.
• Databases: Strong proficiency in relational databases (SQLserver, PostgreSQL, MySQL) and ORM/ODM tools (SQLAlchemy, Django ORM).
• API Design: Proven experience designing clean RESTful web services and integrating with third-party systems.
• Build & Test Tools: Daily experience using dependency managers like Poetry or Pipenv, alongside testing tools like Pytest and unittest
• Version Control: Mastery of Git for branching, merging, and pull requests.

Salary Range: $90,000 - $121, 000 a year