Software Engineer – Senior I with Security Clearance

Job Title: Software Engineer – Senior I Location: Dulles, VA Clearance: Secret (Must be able to obtain TS/SCI and DHS Suitability) Company: Quantum Science Solutions (QSS) Compensation: Open Rate ________________________________________ Position Overview Quantum Science Solutions (QSS) is seeking an experienced Software Engineer – Senior I (Databricks Engineer) to support the migration of mission-critical legacy applications, services, and platforms into a next-generation Medallion Model on Databricks. This role offers the opportunity to modernize enterprise data systems that directly impact national mission success while working in a fast-paced, collaborative environment. You will be at the intersection of data engineering, cloud modernization, and DevOps practices, implementing migration strategies, automation, and CI/CD best practices to ensure secure, scalable, and resilient data platforms. Your contributions will enable advanced analytics, improve pipeline performance, and deliver the foundation for future cybersecurity capabilities. ________________________________________ Key Responsibilities • Support migration of services, applications, and platforms from legacy back-end systems to Databricks. • Identify optimal migration paths, build detailed plans, and execute migration strategies. • Migrate legacy pipelines from NiFi to Databricks and perform validation. • Implement the Medallion Model for all migrated data assets. • Develop Standard Operating Procedures (SOPs) for integrating data assets into Databricks with a focus on efficiency, instrumentation, and performance. • Optimize development, testing, monitoring, and security processes for data assets. • Automate and optimize data ingestion, pipeline orchestration, and management using programming and scripting languages. • Leverage AWS CloudWatch and related tools to enhance transparency and monitor pipeline performance. • Ensure team Standard Operating Procedures are documented and communicated effectively. • Provide technical oversight to ensure correctness, timeliness, and quality of deliverables. • Communicate effectively with all levels of management and customer stakeholders. ________________________________________ Required Qualifications • Must be a U.S. Citizen. • Active Secret clearance, with ability to obtain TS/SCI and DHS Suitability. • 8 years of directly relevant software development experience. • Minimum of 5 years performing data engineering in a cloud environment. • Hands-on experience with relational, NoSQL, and file-based storage (Databricks, Elastic, Postgres, S3, Athena). • Strong background in CI/CD pipeline development. • Working knowledge of Databricks, NiFi, AWS Redshift, and Elasticsearch. ________________________________________ Preferred Skills • Databricks Workflows, Unity Catalog, Autoloader, Delta Live Tables/Delta Lake, Workspaces/Notebooks, and MLflow. • Apache Spark expertise. • Familiarity with AWS Professional certifications (Solutions Architect, Developer, Data Engineer). • Knowledge of CISA best practices, software supply chain security, and NIST SP 800-218. • Experience with collaboration tools including MS Teams, Outlook, SharePoint, and Confluence. • Excellent problem-solving and communication skills. ________________________________________ Education • Bachelor’s degree in software engineering, Computer Science, or related discipline. • In lieu of degree, 10 additional years of experience (total of 18 years) may be substituted. ________________________________________ Why QSS? At QSS, you’re not just filling a role, you’re shaping mission-critical solutions that keep our nation secure. We invest in your growth, foster innovation, and reward technical excellence. Benefits include: • Competitive compensation with annual performance bonuses • Premium Medical, Dental & Vision coverage • Generous PTO plus Federal Holidays • 401(k) with company match • Opportunities for continuous learning and skill development ________________________________________ Impact of This Role If you’re a hands-on technologist who thrives in solving complex problems, embracing automation, and bridging traditional IT with modern DevOps practices, this role will allow you to have a direct and measurable impact on high-priority national programs.

Location: Dulles, Virginia, US

Posted Date: 9/9/2025