Sr. Software Engineer with Security Clearance

Markon is seeking an experienced Senior Backend Software Engineer Level 3 to support an Intelligence Community customer.
This role will focus on designing, developing, testing, and maintaining backend software applications and services that support mission-critical systems. The position requires strong programming skills, experience with relational databases, and the ability to develop scalable, reliable software solutions while collaborating with cross-functional engineering teams. Responsibilities

• Design, develop, test, deploy, maintain, and enhance backend software applications and services.
• Analyze user requirements and translate them into software design specifications, functional requirements, and performance standards.
• Develop and maintain software solutions using Java, C++, and/or Python.
• Design, implement, and optimize relational databases, including PostgreSQL, to support application functionality and data management.
• Conduct design reviews, code reviews, debugging, and testing to ensure software quality, reliability, and performance.
• Analyze complex technical problems, evaluate potential solutions, and implement improvements to existing software systems.
• Utilize Git for version control and collaborative software development.
• Track development activities, requirements, and technical documentation using Jira and Confluence.
• Collaborate with software engineers, systems engineers, and stakeholders to integrate software components and resolve technical challenges.
• Support software development best practices, continuous improvement, and the delivery of reliable mission-focused solutions. Qualifications
• Active TS/SCI clearance with Polygraph required.
• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related technical field.
• 20+ years of relevant software engineering experience, including backend application development.
• Strong programming experience with Java, C++, and/or Python.
• Experience designing, developing, testing, and maintaining backend software applications.
• Experience with relational databases, including PostgreSQL or comparable database technologies.
• Proficiency with Git for source code management and version control.
• Experience using Jira and Confluence for Agile development, requirements tracking, and documentation.
• Experience conducting software design reviews, code reviews, debugging, and performance optimization.
• Strong analytical, troubleshooting, and problem-solving skills.
• Ability to collaborate effectively with technical teams in a software development environment. Desired Qualifications
• Experience developing RESTful APIs, microservices, or distributed backend applications.
• Experience with Linux-based development environments.
• Familiarity with Agile/Scrum methodologies and software development lifecycle practices.
• Experience with Docker, Kubernetes, or other containerization technologies.
• Experience implementing automated testing and CI/CD pipelines.
• Experience supporting software development within an Intelligence Community or Department of Defense environment.
• Experience optimizing database queries, application performance, and system scalability.