Python Backend Developer

Wissen Technology

Mumbai

On-site

INR 800,000 - 1,200,000

Full time

14 days+

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Job summary

A technology solutions company in Mumbai is hiring a Python Backend Developer. The role involves building ETL pipelines, managing APIs, and collaborating with teams. Ideal candidates should have a strong Python background, experience in data processing with PySpark, and proficiency in SQL optimization. This full-time position requires excellent problem-solving skills and attention to detail.

Qualifications

Strong experience in Python focusing on backend development.
Hands-on experience with PySpark for large-scale data processing.
Knowledge of Django or Flask web frameworks.

Responsibilities

Design and develop ETL pipelines using Python and PySpark.
Build RESTful APIs for data access.
Optimize SQL queries for performance.

Skills

Python

Data processing

PySpark

SQL

Django

REST API

CI/CD

Cloud platforms

Tools

Git

Jenkins

Oracle DB

MySQL

Job description

Overview

Wissen Technology is hiring for the Python Backend Developer role.

About Wissen Technology

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide. Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Today, Wissen Technology has a global footprint with 2000+ employees across offices in the US, UK, UAE, India, and Australia. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. Through deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality, we exceed expectations by delivering faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across financial services, healthcare, retail, manufacturing, and more. Our delivery models include outcome-based projects with predictable costs and timelines, and agile pods that provide clients flexibility to adapt to evolving business needs. Our success is powered by top-tier talent and a clear mission: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Job Summary

We are looking for a passionate and detail-oriented Python Backend Developer with strong backend experience focused on data processing. The role involves building robust backend services and collaborating with cross-functional teams to deliver high-quality software products.

Location: Mumbai

Mode of work: Full Time

Key Responsibilities

Design, develop, and maintain ETL pipelines and data workflows using Python and PySpark.
Build and manage RESTful APIs for data access and integrations.
Work closely with data scientists and analysts to deliver clean, reliable, and well-structured data.
Optimize SQL queries, stored procedures, and performance for Oracle DB and MySQL.
Implement and automate CI/CD pipelines for efficient deployment.
Write unit and integration tests using PyTest.
Parse and process XML files, handle file operations efficiently using Python.
Ensure data quality through validation, cleansing, and monitoring pipelines in real-time.
Follow Agile methodologies for iterative development and delivery.
Apply Object-Oriented and Functional Programming principles in service design and architecture.

Requirements

Strong experience in Python (Backend only) with focus on data structures, OOPs, and algorithms.
Hands-on experience with PySpark for large-scale data processing.
Solid knowledge of Django or Flask web frameworks.
Expertise in SQL with deep understanding of query tuning and stored procedures.
Proficiency in file handling, XML parsing, and data validation using Python.
Familiarity with REST API design and integration.
Good knowledge of CI/CD tools like Git, Jenkins.
Exposure to cloud platforms like GCP (preferred), AWS, or Azure.
Excellent communication and interpersonal skills.
Strong attention to detail and problem-solving mindset.

Good to have Skills