Backend Developer

Staffington GlobalKarnataka, India

4 days ago

Job description

Backend Developer

Exp : 8+ years

Location : Bangalore

Mode : Work from Office

Np : Not more than 15 days

Please share profiles with 8+ years’ experience only.

Role Overview

We’re seeking an experienced Backend Developer to join our engineering team. In this role, you’ll design, develop, and maintain robust, scalable, and performant backend services using FastAPI, SQLAlchemy, and PostgreSQL. You’ll collaborate with cross-functional teams to implement business logic, API endpoints, and database solutions while adhering to our comprehensive development standards.

Responsibilities

Design and develop RESTful APIs using FastAPI following our established API standards and best practices
Implement robust data models and database interactions using SQLAlchemy and PostgreSQL
Develop and maintain core business logic in service and repository layers
Write comprehensive unit, integration, and end-to-end tests for all code
Create clear, detailed documentation for code, APIs, and architectural decisions
Collaborate with frontend developers to define API contracts and integration points
Implement and maintain high availability patterns and performance optimizations
Participate in code reviews, providing constructive feedback to peers
Troubleshoot and resolve complex technical issues across the application stack
Contribute to architectural decisions and help evolve our technology standards

Required Skills and Experience

7+ years of professional experience in backend development

Strong proficiency in Python (3.9+) with solid understanding of type hints, async / await, and modern Python features

2+ years of production experience with FastAPI hosted on Azure Cloud.

Proficiency with relational databases, particularly PostgreSQL

Working knowledge of SQLAlchemy

Experience implementing RESTful APIs and understanding of API design principles

Strong understanding of software testing approaches (unit, integration, end-to-end)

Familiarity with containerization (Docker) and container orchestration

Experience with Git version control and CI / CD pipelines

Knowledge of secure coding practices and common security vulnerabilities

Preferred Qualifications

Experience with Pydantic for data validation and schema definition

Familiarity with PostgreSQL advanced features (JSONB, full-text search, etc.)

Experience with asynchronous programming in Python

Experience with Uvicorn, an ASGI web server, for Python.

Understanding of infrastructure as code (Terraform, AWS CloudFormation)

Experience with Kubernetes in production environments

Understanding of event-driven architectures and message brokers

Exposure to microservices architecture patterns

Experience with monitoring and observability tools

Contributions to open-source projects

Technical Competencies

Core Python

Python 3.9+ features and language constructs

Type hints and static type checking with mypy

Error handling and exception management

Asynchronous programming with asyncio

Documentation using Google-style docstrings

Web Frameworks and APIs

FastAPI application development and organization

API design and RESTful principles

Request validation and response formatting

Authentication and authorization implementation

Performance optimization techniques

Database

PostgreSQL schema design and optimization

SQLAlchemy ORM and Core

Query optimization and performance tuning

Transaction management

Database migrations with Alembic

Testing

Test-driven development practices

Unit testing with pytest

Integration testing for APIs and databases

Mocking and fixtures

Code coverage analysis

DevOps and Infrastructure

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Backend Developer • Karnataka, India

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