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Python Developer | Codersbrain

contractual
Posted on July 23, 2025

Job Description

Python Contractor – UPI Systems & Serverless Architecture

Job Summary

We are seeking a highly skilled Python contractor with hands-on experience in Unified Payments Interface (UPI) systems and modern Python development. The ideal candidate will be proficient in building scalable, serverless microservices and integrating secure payment APIs. You will work closely with our engineering team to enhance and maintain our UPI-based transaction platform.

Responsibilities

  • Design, develop, and maintain UPI-integrated microservices using modern Python 3.
  • Implement robust and reusable code using data structures, decorators, context managers, and functional programming paradigms.
  • Build and consume HTTP APIs using Python libraries like requests.
  • Ensure high-quality logging and observability using Python’s logging module.
  • Develop and deploy serverless applications on AWS (Lambda, API Gateway, DynamoDB, etc.).
  • Write and maintain unit tests and integration tests using pytest.
  • Collaborate with cross-functional teams to ensure secure and efficient payment processing.
  • Optimize performance and scalability of microservices in production environments.

Qualifications

  • Strong proficiency in Python 3, with a deep understanding of advanced features.
  • Experience with UPI systems and payment gateway integrations.
  • Solid grasp of data structures, decorators, context managers, and functional programming.
  • Expertise in building and consuming RESTful APIs using Python.
  • Familiarity with Python logging best practices.
  • Hands-on experience with AWS serverless architecture (Lambda, S3, DynamoDB, CloudWatch).
  • Experience in designing and deploying microservices.
  • Strong testing skills using pytest and other unit testing frameworks.
  • Ability to work independently and deliver high-quality code on time.

Preferred Skills

  • Experience with CI/CD pipelines and infrastructure-as-code tools (e.g., Terraform, AWS SAM).
  • Knowledge of security best practices in financial applications.
  • Familiarity with event-driven architectures and message queues (e.g., SQS, SNS).

Experience

Relevant years of experience not specified, but significant hands-on experience in Python and UPI systems is essential.

Environment

This is a remote contract position, allowing for flexible work arrangements.

Salary

Salary information is not provided.

Growth Opportunities

Details regarding career advancement opportunities within the company are not specified.

Benefits

Information on offered benefits is not provided.

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