Python Developer with Security Clearance

Cornerstone Defense LLC; Chantilly (VA); On-site; USD 90,000 - 120,000; Full time

Job summary

Cornerstone Defense LLC is seeking a Python Developer to join a team building data processing applications and cloud-native components. You will own architectural design elements, implement features, and contribute to the software development lifecycle.

The role emphasizes automation, testing within CI/CD pipelines, and deploying containerized Python code. You will work within an Agile team to translate requirements into deliverables and interface with open-source tools.

Qualifications

• Experience with PySpark, Pandas and NumPy for large data processing.
• API development in Python using FastAPI or similar libraries.
• Unit testing and mocking with PyTest and related frameworks.

Responsibilities

• Develop Python-based data processing components.
• Interface with existing systems and cloud applications.
• Contribute to CI/CD with automated tests.
• Design components based on requirements and user stories.
• Lead stakeholder discussions on technical implementations.

Skills

Data Processing

Python

PySpark

Pandas

Numpy

API Development

FastAPI

PyTest

Docker

AWS

CI/CD

Agile

Tools

SQLAlchemy

Docker

AWS

Job description

Python Developer: w orks as part of a team to implement functionality as part of multiple efforts to build data processing applications while taking ownership of architectural design components, technical implementations, and the software development lifecycle. A successful developer will be able to implement functionality to interface with an existing system, as well as writing new functionality to interface with various open-source tools. Knowledge of the software development lifecycle is a must, as the developer will help translate requirements into user stories to be implemented as part of a team. As part of the implementation phase, the developer is expected to include automated tests as part of the CI/CD pipeline to validate the code that is being written. Knowledge of the cloud software deployment process is also key, including familiarity with parallel processing in Python, large data processing using packages such as PySpark, and optimizing Python code for deployment as part of a containerized architecture. Role Highlights:

• Development of software components in support of various Python-based data processing applications
• Work decomposition and development architectural design for components as part of a larger software development system
• Build with automated testing frameworks to ensure code quality and robust CI/CD deployment processes
• Experience developing web APIs to interface with cloud applications and databases as part of cloud native software applications
• Experience working as part of an Agile team to deliver software iteratively
• Experience integrating Python code into Docker containers as part of a distributed architecture.
• Experience designing software application components independently based on requirements
• Experience leading discussions with customer stakeholders to align on requirements and technical implementations Required Skills:
• Data Processing Python Libraries such as PySpark, Pandas and Numpy
• Experience with API development in Python using Python libraries such as FastAPI
• Experience with Unit Testing Frameworks in PyTest and Mocking Preferred Skills/Experience:
• Experience with Python ORM tools for database as code such as SQLAlchemy
• Experience deploying containerized Python code using Docker on cloud platforms such as AWS