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# Software Engineer Level 3

- **Company:** Markon, LLC.
- **Location:** Fort Meade, MD, United States
- **Salary:** $230,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Microsoft Windows, Data Analysis, Automation of Tests, Code Review, Data Architecture, Data Security, Data Visualization, Elasticsearch, Spring Framework, Python (Programming Language), PostgreSQL, MariaDB, OpenShift, Performance Tuning, Software Architecture, Power BI, Server Administration, Software Engineering, Enterprise Application Integration, Java Application Server, Enterprise Software Applications, Spring-boot, Powerquery, Containerization, Gitlab-ci, Restful APIs
- **Published:** October 8, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9227632/software-engineer-level-3

## About the Role

* Active TS/SCI w/ Polygraph with this Customer.
*

 + Bachelor's degree and 20+ years of software engineering experience.
 + Expert experience architecting Java applications using Spring Framework or Spring Boot.
 + Expert experience designing, optimizing, and tuning PostgreSQL databases and data access architectures.
 + Experience designing RESTful APIs and enterprise integration patterns.
 + Experience developing Power BI solutions using Power Query M and complex data visualization techniques.
 + Experience with Python, containerized application platforms, and GitLab CI/CD pipelines.
 + Demonstrated experience leading software architecture decisions, mentoring engineering teams, and driving technical modernization efforts.
 + Strong analytical, troubleshooting, communication, and leadership skills.

Desired Qualifications

 * Experience with Power BI Report Server administration and DAX.
 * Experience with OpenShift, MariaDB, Elasticsearch, or Windows-based environments.
 * Experience leading cyber analytics, behavioral analytics, fingerprinting, or threat intelligence application modernization initiatives.

## Description

* Define the technical architecture for enterprise cyber analytics and fingerprinting capabilities.
 * Lead the design, development, modernization, and sustainment of Java 17 applications using Spring Framework 6.
 * Establish PostgreSQL data architectures, optimization strategies, performance standards, and best practices.
 * Design RESTful APIs and enterprise integration patterns supporting complex analytic workflows.
 * Lead Power BI architecture and resolve advanced data modeling, visualization, and reporting challenges using Power Query M and DAX.
 * Guide containerized deployments and delivery automation across OpenShift environments.
 * Establish and maintain GitLab CI/CD standards supporting automated testing, security, and production releases.
 * Mentor software engineers through architecture reviews, code reviews, technical guidance, and complex troubleshooting.
 * Coordinate technical priorities with Government customers, analysts, and mission stakeholders.
 * Evaluate technical risks and deliver secure, scalable, maintainable, and resilient enterprise software solutions.