Software Developer – Senior

Job Description
What You Will Be Doing

• Leading software architecture, design, and development efforts for analytic modeling and simulation platforms.
• Translating research prototypes (e.g., Jupyter notebooks and analytic scripts) into production-ready applications and services.
• Developing and maintaining web-based analytic applications using technologies such as:
  • Python (primary language)
  • Flask, Streamlit, Dash, or similar frameworks
  • RESTful APIs and microservices architectures
• Implementing scalable data pipelines and backend services supporting graph analytics, spatiotemporal models, anomaly detection, and co-traveler analytics.
• Integrating models developed by Social Scientists and Operations Research Data Scientists into secure and performant software environments.
• Ensuring software compliance with DoD cybersecurity, Dev Sec Ops , and accreditation requirements.
• Developing automated testing frameworks to validate model performance, reproducibility, and system reliability.
• Optimizing performance of data-intensive and computationally complex analytic systems.
• Implementing secure data handling, access controls, logging, and auditing mechanisms consistent with government requirements.
• Participating in code reviews, configuration management, and continuous integration/continuous deployment (CI/CD) processes.
• Producing technical documentation, system design artifacts, and user documentation for government stakeholders.
• Providing technical leadership and mentorship to junior developers.

• MUST HAVE a Current and Active Top Secret SCI with Polygraph, as the customer is NOT sponsoring clearances.
• SEC+ certification.
• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Computer Engineering, or related technical discipline.
• 5+ years of professional software development experience.
• Proficiency in Python and experience developing production-grade applications.
• Familiarity with R scripting.
• Experience building web-based analytic tools and RESTful services.
• Familiarity with containerization technologies (e.g., Docker) and CI/CD pipelines.
• Experience working with databases (SQL and/or No
  
  SQL) and large-scale data systems.
• Understanding of software security best practices and secure coding standards.
• Experience collaborating in multidisciplinary technical teams.
• Strong written and verbal communication skills.
• Bachelor’s degree and 8 years’ experience OR Master’s degree and 6 years’ experience OR PhD and 4 years’ experience.

• Experience with RMF, NIST 800-53, or other federal compliance frameworks.
• Experience supporting DoD or Intelligence Community programs.
• Familiarity with graph databases, social network analysis tools, or geospatial data systems.
• Experience deploying applications in cloud or hybrid environments (e.g., AWS Gov Cloud, Azure Government, or on-premise secure environments).

Knowledge of Dev Sec Ops  practices within regulated environments.

Crimson Phoenix considers people our most important asset. Our goal is to attract, retain, and motivate exceptional individuals from every background who share our commitment to the customer, our passion for the mission, our delight for innovation, and our determination to achieve excellence in everything we do. We offer phenomenal benefits to our employees, allowing them to focus on the mission, knowing that Crimson Phoenix is focused on them!

Just some of the benefits we offer:

• Dollar for dollar 6% 401k match, with immediate vestment
• Paid Time Off (PTO)
• Multiple Medical Plans from which you can choose.
• Flexible Spending Account (FSA) option
• Vision / Dental
• Paid for Short-term / Long-term Disability
• Paid for Group Life Insurance
• Employee recognition for anniversaries, birthdays, and customer kudos!

Click APPLY to be contacted about this position and find out more details. We are a small, growth-oriented, federal contractor that delivers professional services in support of the Intelligence & Federal Community. Located outside of Washington D.C., we are a fast-paced group due to the customers’ diversity, types of projects, environments, and roles we support. To learn more, please visit

Crimson Phoenix is an Equal Opportunity and affirming employer. We welcome and encourage diversity in our workforce. It is the policy of Crimson Phoenix to provide equal employment opportunity to all employees and qualified applicants without regard to race, color, religion, national origin, sex, age, disability, pregnancy, sexual orientation, gender identity, genetic information, protected veteran status, or any other protected characteristic under federal, state or local law.

Crimson Phoenix provides state of the art Information Technology & Intelligence solutions for the Federal Civilian Sector, Department of Defense, and Intelligence Community. We specialize in Web Development, Graphic Design, Software Engineering, System Engineering, Training, Intelligence Analysis, Data Science, and Instructional Systems Design.