Markon, LLC.
• $140K — $185K *Qualifications
Responsibilities
Benefits
Markon is seeking an experienced Expert Software Developer to support a mission-critical Intelligence Community customer in Chantilly, Virginia. This position will focus on modernizing legacy applications, developing scalable full stack solutions, and leveraging Amazon Web Services (AWS) to enhance enterprise capabilities supporting critical intelligence operations.
ResponsibilitiesDesign, develop, maintain, and modernize legacy software applications to improve system functionality, maintainability, and performance.
Develop and maintain full stack applications using Java, Spring Boot, Angular, and TypeScript.
Design, implement, and integrate RESTful APIs using Spring Boot to support enterprise applications and data exchange.
Leverage Amazon Web Services (AWS) to develop, deploy, and maintain cloud-based applications and supporting infrastructure.
Develop custom scripts to automate application installation, configuration, and deployment within AWS EC2 instances.
Design and implement custom Extract, Transform, Load (ETL) methodologies to support data processing, transformation, and integration requirements.
Integrate and utilize Elasticsearch to support application search, indexing, and data retrieval capabilities.
Translate customer requirements and technical specifications into scalable, maintainable software solutions.
Develop and execute unit tests to validate application functionality, reliability, and performance.
Implement and maintain automated testing frameworks, including Selenium, to improve software quality and deployment readiness.
Participate in peer code reviews, applying established software engineering standards and development best practices.
Collaborate with internal and external engineering teams to troubleshoot complex technical challenges and deliver technically sound solutions.
Support software development activities within Agile and Scrum environments, including sprint planning, development, testing, and iterative delivery.
Utilize Confluence, Jira, Git, and Jenkins to support development workflows, documentation, version control, and continuous integration activities.
Develop and maintain technical documentation, including application designs, implementation procedures, and system configuration information.
Provide technical guidance and mentorship to junior software developers, promoting software engineering best practices and knowledge sharing.
Independently evaluate technical challenges, recommend solutions, and contribute to architectural and design decisions.
Communicate technical concepts, project progress, and engineering recommendations effectively to technical and nontechnical stakeholders.
Required:
An active TS/SCI security clearance with Full Scope Polygraph (FSP) is required to be considered.
Bachelor's degree and 11 615 years of relevant software development experience.
Strong full stack development experience using Java, Spring Boot, Angular, and TypeScript, including RESTful API development.
Experience developing and deploying applications within Amazon Web Services (AWS), including EC2 configuration and custom deployment scripting.
Experience designing and implementing ETL processes and integrating applications with Elasticsearch.
Proficiency working in Red Hat Enterprise Linux (RHEL) command-line environments.
Experience with Agile/Scrum methodologies, unit testing, peer code reviews, and automated testing tools such as Selenium.
Working knowledge of Confluence, Jira, Git, and Jenkins.
Strong analytical, communication, and documentation skills, with the ability to translate customer requirements into effective technical solutions.
Desired:
Experience modernizing legacy applications and migrating capabilities to cloud environments.
Experience supporting Intelligence Community or mission-critical government software development programs.
Familiarity with CI/CD automation, secure software development practices, and AWS architecture.
Experience mentoring junior developers and contributing to technical design and architecture decisions.
Benefits Offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Training and Tuition Assistance, Paid Time Off, and Holidays
Our team will look into this right away.