Role Description ECS is seeking a Genetic Statistical Subject Matter Expert (SME) that will provide support in the areas of forensic science, population genetics, forensic DNA likelihood ratios, allelic dependencies, and population substructures. The Genetic Statistical SME is responsible for reviewing the Population Statistics (Popstats) to ensure that the calculations are accurate. The genetic statistical SME will evaluate the Popstats to ensure the proper caveats are contained within the description of CPI and CPE to prevent misuse of the statistic by labs within the CODIS community. Additional support includes white papers and expert guidance on population genetics, recommendations to enhancing kinship, paternity and mixture calculations and the validity of those calculations and likelihood ratios. Qualifications - Active Secret clearance - Strong understanding of the calculations used in Popstats: Forensic Single Sample, Mixture, Kinship, Parentage, Partial Match, and Match Estimation Requirements - Review the Popstats FSD to ensure the calculations are accurate and clearly explained and provide suggestions to improve the calculations in CODIS - Provide support in the event of emergent issues impacting the CODIS program. This support includes creating whitepapers and providing recommendations to the Government to resolve emergent issues - Collaborate with ECS and the government to publish white papers and scholarly articles related to CODIS functionality - Verify the statistical and scientific validity of software changes - Present at the CODIS Conference, CODIS State Administrator meeting, Scientific Working Group on DNA Analysis Methods (SWGDAM), or other similar meetings Benefits - General Description of Benefits

Role Description Crown Innovations is seeking a Junior Full Stack Developer to support the development, maintenance, and enhancement of energy-related dashboards, Open Data APIs, websites, and data update procedures for a leading government agency. This role is responsible for supporting day-to-day operations of web-based applications and data systems while developing a strong understanding of datasets, data relationships, and business rules. The selected candidate will translate client work requests into actionable technical requirements and support the delivery of information dissemination products, including dashboards and web applications. This position requires a high level of reliability, attention to detail, and the ability to meet daily deliverables with a required start time of 7:00 AM EST. Key Responsibilities - Application Development & Maintenance - Support development and maintenance of dashboards, Open Data APIs, websites, and data update procedures - Develop and maintain web-based applications using HTML, CSS, jQuery, JavaScript, and PHP - Assist in designing and supporting interactive web applications - Data Integration & Management - Move and integrate datasets between multiple databases across different servers - Manage and maintain data relationships across multiple database tables - Develop a deep understanding of datasets, business rules, and data structures - Web Operations & Deployment - Support deployment of web applications and ongoing operations management - Monitor applications, identify issues, and support error isolation, escalation, and resolution - Assist in build and deployment automation using CI/CD tools - Technical Analysis & Documentation - Translate client work requests into technical requirements - Document requirements, specifications, and system functionality - Support development and delivery of information dissemination products - Collaboration & Delivery - Participate in team-based development and delivery activities - Support successful delivery of dashboards and other information products for government clients - Utilize version control systems and branching models in a collaborative environment Qualifications - U.S. Citizenship required - Ability to obtain and maintain a Public Trust clearance - Bachelor’s degree in Computer Science, Engineering, or a related field - 2–4 years of experience in client-server or distributed architecture environments, including Microsoft or web-based application development - 2–4 years of experience developing web-based applications using HTML, CSS, jQuery, JavaScript, and PHP - Experience integrating datasets between multiple databases and across different servers - Working knowledge of Internet Information Services (IIS) for Windows Server - Experience as a front-end software developer designing interactive web applications - Experience with web operations management including deployment, monitoring, error isolation, escalation, and issue resolution - Experience using Git and GitFlow or a strong understanding of version control tools and branching models - Familiarity with continuous integration tools (e.g., GitLab CI/CD) and build/deploy automation - Ability to document technical requirements and specifications - Strong attention to detail and ability to meet structured daily deliverables Preferred Qualifications - Experience with advanced JavaScript libraries and frameworks such as AngularJS - Experience with PHP web frameworks such as Slim and dependency management tools such as Composer - Familiarity with Highcharts or similar data visualization tools - Experience with SQL query construction, including database scripts, views, and stored procedures - Strong understanding of client-side scripting and JavaScript frameworks including jQuery - Understanding of asynchronous request handling, partial page updates, and AJAX - Familiarity with server-side CSS pre-processing platforms such as LESS and SASS Work Schedule & Environment - Core hours: Monday through Friday, 7:00 AM – 4:00 PM EST - Fully remote (telework) position - Work performed in a collaborative development and data environment supporting federal programs Compensation Hourly Rate Range: $85K– $100K annually (W2). Compensation is determined based on experience, qualifications, geographic location, and internal equity considerations. Crown complies with all applicable state and local pay transparency laws. The listed compensation range represents the good faith salary range for this position at the time of posting. Actual compensation will be based on experience, qualifications, geographic considerations, and business needs. Benefits - Medical insurance and prescription drug coverage - Dental insurance - Vision insurance - Life and AD&D insurance - Long-term disability insurance - Short-term disability insurance - Paid time off and paid holidays - Retirement plan with company match

STR’s Analytics and Command & Control (AC2) Division designs, develops and deploys novel technologies to solve challenging national security problems. Our team consists of passionate and motivated engineers and scientists with degrees in engineering, computer science, mathematics, physics, and data science. We use our expertise and creativity to take innovative ideas from conception to mature implementation to improve mission success of our customers. The Decisions Systems Group in the AC2 Division builds algorithms and tools to enhance trust in AI systems and help humans make the best decisions possible. We create solutions that make a difference in mission planning, modeling and simulation, AI decision aids, and more. Our portfolio spans trusted AI, Command & Control (C2), graph-based reasoning, autonomous systems, and human-machine interfaces. Current applications include a simulation platform for training and testing AI autonomy solutions, evolutionary algorithms for resilient workflow optimization, evaluating the reliability and responsibility of autonomous systems, and language models enhanced with domain-specific simulations to accurately assess the feasibility of scientific claims. The Role: As a Senior Software Engineer at STR, you will support the design and implementation of flexible software solutions, collaborate with multi-disciplinary project teams and provide high-impact, unique solutions for our customers’ most important problems. You will initially support system integration and testing for a mature mission planning solution transitioning to an active user community. Subsequent projects will be driven by the intersection of your interests with our expanding R&D portfolio. This role allows for remote work in collaboration with STR’s Woburn, MA and Arlington, VA offices, taking advantage of STR’s flexible, hybrid work environment. The role will involve periodic travel, up to 20%. Who You Are: - BS or MS or equivalent experience in computer science or other software development related field - 3-5+ years of relevant experience (BS degree), or 1-2+ years (MS) - Fluent in Java and its ecosystem, including object-oriented programming (OOP) principles - Demonstrated experience writing maintainable, well documented code and APIs - Specific demonstrated experience in Linux and container-based software (e.g., Docker) - U.S. Citizen with the ability to obtain a Top Secret security clearance Even Better: - Demonstrated experience with DevOps and CI/CD pipelines - Experience using Python - Demonstrated ability to adopt new languages, libraries, and technologies - Experience in intelligence or military-related mission areas - Active security clearance STR is a growing defense technology company. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us. STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer. STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at www.str.us for more info. Pay Information Full-Time Salary Range: $140,000.00 to $170,000 The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions. STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us. STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer. STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at www.str.us for more info. STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws. If you need a reasonable accommodation for any portion of the employment process, email us at appassist@str.us and provide your contact info. Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.

• The Expert Mainframe Systems Programmer provides support for ongoing projects that require the installation, testing, and implementation of new z/OS operating systems and other ‘system’ software. • Maintenance and debugging of systems software. • Research and evaluation of new software and hardware products. • Assisting team members and other areas with technical questions and problem resolution. • Monitoring and tuning of systems software. • Provide thought leadership in terms of future direction for Automation strategy for Ensono. • Look at best practices, tools and process in the context of Ensono’s business, operations, and customers. • Be the subject matter expert and main point of contact for key projects and initiatives. • Participate in On-call Schedule. • Incident / Problem resolution