Software Engineer (Full Stack / Backend Focus)Location: Chantilly, VA (On-Site) Clearance: TS/SCI with Full Scope Polygraph (Required) Company: Quantum Science Solutions (QSS) Compensation: OpenPosition OverviewQuantum Science Solutions (QSS) is seeking a skilled Software Engineer to support a backend development team focused on middleware and backend services. This role requires a strong full-stack foundation with an emphasis on backend development, data processing, and scalable service architecture. The ideal candidate will bring experience in big data technologies, search/indexing platforms, and cloud-based development, along with strong programming expertise across multiple languages. The candidate will work within an Agile environment to develop, deploy, and maintain high-performance backend systems supporting production applications.Key ResponsibilitiesDesign, develop, and deploy middleware and backend services in a production environmentDevelop and maintain RESTful APIs using Spring Boot and modern frameworksProcess and analyze large datasets using big data technologies such as Spark or PySparkPerform data quality analysis to ensure data integrity and consistencyImplement and manage search/indexing solutions using Solr or ElasticsearchDevelop backend services using Java, Python, JavaScript, and BashBuild and deploy applications within AWS cloud environmentsCollaborate with cross-functional teams in an Agile development environmentUtilize JIRA and GitHub for task management, version control, and collaborationWork within Linux-based environments (e.g., CentOS) to support development and deploymentMandatory SkillsDemonstrated experience utilizing big data technologies such as Spark or PySparkHands-on experience with Solr or Elasticsearch, including:Running and managing indexesSpinning up clustersLoading and managing dataPerforming schema modificationsDemonstrated experience performing data quality analysisStrong proficiency with Regular Expressions (RegEx)Programming experience with:Java (8+) (Java 17 upgrade planned)PythonJavaScriptBashExperience working with AWS servicesExperience developing with Spring Boot and building RESTful APIsExperience using JIRA and GitHubExperience working in Linux environments (e.g., CentOS)Demonstrated experience designing, developing, and deploying middleware or backend systems to productionPreferred SkillsExperience working with distributed or scalable systemsFamiliarity with microservices architecturesExperience supporting data-intensive applications or analytics platformsEducationB.S. in Computer Science, Computer Engineering, Computer Information Systems, or related field, or equivalent experienceWhy QSS?At QSS, you're not just filling a role, you're building and sustaining systems that matter. We invest in your growth, foster innovation, and reward technical excellence.
Benefits include:Competitive compensation with annual performance bonusesPremium Medical, Dental, & Vision coverageGenerous PTO plus Federal Holidays401(k) with company matchOpportunities for continuous learning and skill development