Software Engineer (Journeymen - SME Level) with FSP

Software Engineer (Journeymen - SME Level) Software Engineering CareersBethesda,Maryland Software Engineer – TS/SCI with Full Scope Polygraph Xcelerate Solutions is seeking a Software Engineer to support the design, development, and implementation of mission-critical systems and applications for the Department of Defense. This role provides technical expertise in software engineering, systems development, and cloud infrastructure within a DevOps framework. The Software Engineer will work collaboratively across teams to deliver secure, scalable, and innovative solutions supporting national security objectives. Security Clearance: Top Secret / SCI with Full Scope Polygraph Location: Bethesda, MD Responsibilities: Develop and direct software system validation and testing methods using JUnit and Katalon, leveraging automated deployment technologies for efficiency and accuracy. Design, prototype, and deploy solutions within Commercial Cloud Services (AWS, Google Cloud, Azure) using infrastructure platform services. Coordinate closely with Product Owners, Scrum Masters, and development teams to ensure user stories align with mission use cases and requirements. Support the Agile software development lifecycle by utilizing leading DevOps tools such as GitHub, Jenkins, and Unix bash scripting, and manage work tracking via JIRA and Confluence. Conduct proof-of-concept, performance, and end-to-end testing to validate infrastructure requirements driven by developed software. Apply best practices and standard operating procedures to create innovative, secure, and reliable software solutions tailored to customer mission needs. Participate in continuous improvement efforts, leveraging automation and modern DevOps methodologies to streamline deployment and enhance system performance. Extensive experience in Agile software development, service-oriented architectures, and DevOps environments. Proficiency with Java, Spring, C2S, and the full software development lifecycle. Demonstrated hands‑on experience using JUnit, Katalon, Python, and Bash scripting for software testing and performance validation. Proven experience developing in commercial cloud environments (AWS, Google Cloud, Azure) and leveraging cloud data services such as S3, RDS, and EFS. Experience using version control systems and issue tracking tools to maintain code quality and project transparency. Education/Experience: High school diploma plus 6 - 20+ years of relevant experience Bachelor's degree plus 4 -10 years of relevant experience Master’s degree plus 2 - 15+ years of relevant experience Doctorate plus 13+ years of relevant experience Active TS/SCI clearance with Full Scope polygraph required. Preferred Qualifications: Experience with structured analysis and design methodologies. Understanding of customer system development policies and procedures. Strong problem‑solving skills and ability to translate mission requirements into technical solutions. Prior experience supporting national security or defense‑related software programs. About Xcelerate Solutions: Founded in 2009 and headquartered in McLean, VA, Xcelerate Solutions ( is one of America's fastest‑growing companies. Xcelerate’s culture is defined by our diversified workforce of dynamic and versatile professionals, supported with growth and development opportunities that contribute to individual and company growth. This strong commitment to our employees has been recognized by our inclusion on the Washington Business Journal’s “50 Best Places to Work” list as well as being a “Great Place to Work” certified company with a 4.6 star, and a 99% CEO approval Glassdoor rating. Come find out why Xcelerate Solutions is one of the DC Metro top employers! Xcelerate Solutions is an Equal Employment Opportunity/Affirmative Action Employer. We evaluate qualified applicants without regard to race, color, national origin, religion, age, equal pay, disability, veteran status, sex, sexual orientation, gender identity, genetic information, or expression of another protected characteristic. As part of this commitment to the full inclusion of all qualified individuals, Xcelerate provides reasonable accommodations if needed because of an applicant's or an employee's disability. Pay Transparency Notice: Xcelerate Solutions will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. #J-18808-Ljbffr