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Cloud Software Engineer TS/SCI w FSP Annapolis Junction, Maryland 20701 $160,000 - $240,000 Experience 8+ Years and Bachelor of Science Job Description Client is seeking a Cloud Software Engineer to join a large, complex product development environment. This role focuses on supporting all aspects of agile software design and development for products deployed across large-scale compute clusters. Responsibilities include designing and building new capabilities, conducting testing, optimizing performance, and supporting ongoing operations and sustainment. As a Senior Cloud Software Engineer, you will operate with a high degree of independence across the full software development lifecycle, including requirements analysis, design, development, integration, testing, deployment, and maintenance. Design and implement scalable solutions, including integration and extension of COTS and GOTS products. Troubleshoot and resolve complex technical issues while optimizing system performance. Provide technical guidance and mentorship to junior engineers. Contribute to project planning by defining tasks, timelines, and technical approaches. Develop and execute test cases, create SOPs, and maintain technical documentation. Review system designs for accuracy, completeness, and scalability. Rivermatrix is a small, technology first shop committed to delivering great work and treating our folks well. Joining Rivermatrix means being a valued member of a small team, not just a number lost in a crowd. We approach our work with creativity, mission-focus, and a passion for quality and results. Rivermatrix is built lean so we can drive resources towards what counts; our employees. We believe that the quality of our staff, focus on building good technology (not just the bottom line), competitive salaries, great benefits, and employee investment are the foundation for our continued success. Requirements The Cloud Software Engineer must have a Bachelor's degree in Computer Science or a related technical field (e.g., Mathematics, Information Systems, Engineering). Minimum of 8 years of experience in software development/engineering, including requirements analysis, development, integration, testing, and troubleshooting. At least 6 years of experience developing in high-level languages such as Java, C, or C++. At least 5 years of experience working in UNIX/Linux (RedHat-based) environments. At least 3 years of experience in software integration and testing, including test plan and script development. An active TS/SCI with Poly is required. Requirements: Strong Java development experience, including distributed systems, networking, and multithreading Proficiency with Infrastructure as Code (IaC) tools such as Ansible or Puppet Experience with CI/CD pipelines, including automated testing, deployment, and monitoring Experience working in Agile environments with modern source control practices Strong Linux fundamentals and proficiency in at least one scripting language (e.g., Python, Bash, Ruby, or Perl) Familiarity with microservices architecture and container orchestration platforms (e.g., Kubernetes) Experience with containerization technologies such as Docker Hadoop or Cloud Developer certification required Willingness to participate in a rotating Tier III on-call schedule Ability to support surge requirements during high-priority situations Position is primarily onsite at the customer location; telework is limited and situational Preferred Skills Experience with Apache Hadoop, Accumulo, and NiFi Familiarity with MongoDB and messaging systems (e.g., ActiveMQ) Experience with Spring Framework, Python, and Bash scripting Knowledge of security and compliance best practices Experience with AWS, hybrid cloud environments, and related cloud technologies Required Certification (one of the following): AWS Certified Developer - Associate AWS DevOps Engineer - Professional Certified Kubernetes Application Developer (CKAD) Possession of a Cloud certification is required and will be verified as part of the interview or offer process.