Backend Python Developer

Navigatorhr; Lahore; On-site; PKR 48,170,000 - 57,803,000; Full time

Job summary

Navigatorhr is seeking a Backend Python Developer to join the development team in Valencia. The role focuses on building and maintaining REST APIs using Python, Flask, and PostgreSQL with a strong emphasis on clean, scalable backend code.

You will work with Docker, Docker Compose, and AWS, write tests with pytest, and collaborate with the team to ensure high-quality software delivery. Excellent English communication is required.

Qualifications

• 2+ years writing Python for production backends.
• Experience building REST APIs with Flask (or FastAPI) and willingness to learn Flask.
• Strong PostgreSQL and SQL. You can write multi-table joins and aggregations, read a query plan, and add the right index.
• Experience with database migrations and schema changes on a live system.
• Docker and Docker Compose for local development.
• Automated testing (pytest or similar).
• Good written English and communication skills

Responsibilities

• Build and maintain REST API endpoints with Flask and Flask-RESTX.
• Write clean and scalable backend code
• Work with PostgreSQL, complex SQL queries, indexes, migrations, and reporting
• Write automated tests using pytest
• Debug applications using Docker Compose
• Follow existing architecture, coding standards, and ticket requirements

Skills

Python

REST APIs

SQL

English communication

Tools

Docker

PostgreSQL

RabbitMQ

Flask

pytest

AWS

Job description

Backend Python Developer

We are looking for a good Backend Python Developer with 2+ years of professional experience to join our development team.

Tech Stack:

Python 3.11, Flask, PostgreSQL, RabbitMQ, Docker, pytest, AWS

Key Responsibilities:

• Build and maintain REST API endpoints with Flask and Flask-RESTX.
• Write clean and scalable backend code
• Work with PostgreSQL, complex SQL queries, indexes, migrations, and reporting
• Write automated tests using pytest
• Debug applications using Docker Compose
• Follow existing architecture, coding standards, and ticket requirements

Must have

• 2+ years writing Python for production backends.
• Solid experience building REST APIs (Flask, or FastAPI and willing to learn Flask).
• Strong PostgreSQL and SQL. You can write multi-table joins and aggregations, read a query plan, and add the right index.
• Experience with database migrations and schema changes on a live system.
• Docker and Docker Compose for local development.
• Automated testing (pytest or similar).
• Good written English and communication skills

Nice to have

• Message queues (RabbitMQ) and background worker services.
• AWS S3, EC2, ECR.
• Pandas and building data import or ETL pipelines.
• Reporting work: materialized views, rollup tables, caching.
• LLM work LangChain, LangGraph, or the Anthropic and OpenAI APIs.
• PostGIS or other map and location data.

Location : Valencia

Salary Slot: 150k to 180k

Timing: 10:00 AM to 7:00 PM monday to friday

Communication Skill: Excellent