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# Senior Software Developer (Python)

- **Company:** 22nd Century Technologies, Inc.
- **Location:** Lorton, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Agile Methodology, Amazon Web Services, IOS Applications, Confluence, JIRA, Automation of Tests, Microsoft Azure, Cloud Computing, Computer Programming, Databases, Continuous Integration, Data Security, Software Debugging, DevOps, Python (Programming Language), PostgreSQL, MongoDB, NoSQL, Object-Relational Mapping, RabbitMQ, Software Construction, Software Engineering, SQLAlchemy, Google Cloud, Performance Testing, Delivery Pipeline, Appium, Backend, Git, Fastapi, Vue.js, Kubernetes, Information Technology, Atlassian Tools, Bitbucket, Celery, Front End Software Development, Software Coding, Restful APIs, Software Version Control, Atlassian Bamboo, Docker
- **Published:** September 17, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9171929/senior-software-developer-python

## About the Role

We are seeking a highly motivated and skilled Software Developers to join our engineering team. The ideal candidate will have strong experience in backend development, and software engineering best practices. This role involves designing, developing, and maintaining automation frameworks, backend services, and scalable applications while collaborating with cross-functional teams in an Agile environment., * Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field.

 * 5+ years of experience in software development and automation (or equivalent experience).
 * Strong programming experience in Python.
 * Working knowledge of Java and JavaScript.
 * Experience with FastAPI, Celery, and SQLAlchemy.
 * Experience with Vue.js or similar frontend frameworks.
 * Strong understanding of REST API development.
 * Experience with PostgreSQL and MongoDB.
 * Hands-on experience with Docker and Kubernetes.
 * Proficiency with Git and Atlassian tools (Jira, Confluence, Bamboo, and Bitbucket).
Required Technical Skills

 * Python
 * Java
 * JavaScript
 * FastAPI
 * Celery
 * SQLAlchemy
 * MongoDB/NoSQL
 * Docker
 * Kubernetes
 * Git
 * Jira, Confluence, Bamboo, Bitbucket
Preferred Skills

 * Experience designing scalable software architectures.
 * Knowledge of CI/CD pipelines and DevOps practices.
 * Familiarity with cloud platforms such as AWS, Azure, or Google Cloud.
 * Experience with performance testing and test automation best practices.

## Description

* Design, develop, and maintain automation solutions and frameworks for web, mobile, and backend applications.
 * Develop scalable backend services using Python and FastAPI.
 * Build and manage asynchronous task processing using Celery and RabbitMQ.
 * Develop and maintain RESTful APIs and data access layers.
 * Design, optimize, and maintain relational and NoSQL databases using PostgreSQL and MongoDB.
 * Utilize SQLAlchemy and other Object-Relational Mapping (ORM) tools for efficient database interactions.
 * Develop and execute automated test scripts for Android and iOS applications using Appium.
 * Troubleshoot, debug, and resolve software defects and performance issues.
 * Develop and maintain containerized applications using Docker and Kubernetes.
 * Maintain comprehensive technical documentation and adhere to coding standards.
 * Use Git and Atlassian tools (Jira, Confluence, Bamboo, and Bitbucket) for source control, project tracking, and CI/CD activities.