> Markdown version of [/jobs/ext/4452893-software-engineer-iii](https://www.wearedevelopers.com/jobs/ext/4452893-software-engineer-iii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Software Engineer III

- **Company:** CLEAREDGE, LLC
- **Location:** Annapolis Junction, MD, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Testing (Software), Java (Programming Language), Microsoft Excel, Confluence, JIRA, Bash Shell, Cloud Computing, Software Quality, Continuous Integration, Custom Software, Data Systems, Software Debugging, Linux, Java Platform Enterprise Edition (J2EE), Python (Programming Language), PostgreSQL, Messaging Application Programming Interface, MongoDB, NoSQL, Open Source Technology, RabbitMQ, Ansible, Software Engineering, Software Systems, SQL Databases, Systems Integration, Scripting, Kubernetes Helm Charts, Containerization, Gitlab-ci, Kubernetes, Infrastructure Automation Frameworks, Atlassian Tools, Data Analytics, Apache Kafka, Docker
- **Published:** October 23, 2026
- **Apply:** https://www.thejobnetwork.com/job/d1403876-b1c3-4336-b888-3df41ea4637e/software-engineer-iii

## About the Role

As a Software Engineer III, you will design, develop, test, deploy, document, maintain, and enhance complex software systems. You will integrate custom software with COTS, GOTS, and FOSS products, develop cloud-based and containerized applications, implement complex algorithms, and ensure software quality through rigorous testing and continuous integration practices. You will also provide technical leadership, support system integration efforts, and contribute to architecture decisions including hardware/software trade-offs and technology selection.
This position requires a current polygraph within the last 7 years. You Will Excel in This Role If You Are:

 * Experienced in designing, coding, testing, and maintaining complex software systems
 * Skilled in Linux/Unix environments and comfortable using the Linux CLI
 * Proficient in Python (3.x) development and Bash shell scripting
 * Familiar with Rust programming concepts or eager to learn and apply them
 * Experienced with containerization technologies such as Docker and containerd
 * Skilled in Kubernetes and creating Helm Charts for container orchestration
 * Comfortable working with NoSQL databases such as MongoDB
 * Familiar with messaging frameworks including RabbitMQ
 * Knowledgeable in CI/CD principles and tools such as GitLab CI
 * Experienced with Infrastructure-as-Code (IaC) tools such as Ansible, * TS/SCI with Polygraph (within the last 7 years)
 * Nine (9) years of software engineering experience OR Bachelor's degree + seven (7) years of experience OR Master's degree + five (5) years of experience
 * Experience developing in Unix/Linux environments
 * Experience using Linux CLI and tools
 * Experience with Bash shell scripting
 * Recent experience with Python (3.x) development
 * Experience with NoSQL databases such as MongoDB
 * Experience with container technologies (Docker, containerd)

Nice to Have:

 * Experience with SQL databases such as PostgreSQL
 * Experience with the Atlassian Tool Suite (Jira, Confluence)
 * Experience with Java development and J2EE applications
 * Experience with orchestration frameworks such as Spring or Kafka
 * Experience developing cloud-based solutions
 * Experience serving as a technical lead or overseeing software development teams

## Description

* Writing and maintaining Bash scripts for automation and system operations
 * Building and deploying containerized applications using Docker and Kubernetes
 * Creating and maintaining Helm charts for Kubernetes deployments
 * Integrating software with COTS, GOTS, and open-source tools
 * Developing and optimizing data-driven or event-driven analytics systems
 * Designing and executing software test procedures and documenting results
 * Debugging software defects and modifying code to improve performance
 * Developing simple and complex queries for MongoDB and PostgreSQL databases