Senior Software Engineer

NASK is looking for a hands-on Senior Software Engineer to join a small, technically focused team supporting national security missions at a customer site in Beavercreek, Ohio. You will work directly with scientists, sensor domain experts, and intelligence analysts - translating complex technical requirements into functional, maintainable software., * Design, develop, and maintain Python-based software tools supporting optical signature modeling, spectral sensor data processing, and analytical workflows.

• Work with sensor physicists, data scientists, and machine learning engineers to translate technical concepts and mission requirements into working software.
• Build and optimize data pipelines to ingest, process, and analyze large-scale scientific and sensor datasets.
• Develop and integrate machine-learning workflows - including training data preparation, model integration, and evaluation - into operational toolsets.
• Create clear software architecture documentation, workflow diagrams, and code structure so tools can be maintained, extended, and transitioned effectively.
• Test, validate, and troubleshoot algorithms and software modules across development and deployment environments, including classified workspaces.
• Manage and maintain Git repositories with discipline - clean commits, meaningful documentation, and reproducible builds.
• Contribute to a culture of technical rigor: peer reviews, coding standards, and honest engagement with complex problems.

• Active TS/SCI clearance with CI polygraph.
• Bachelor’s degree in Computer Science, Engineering, Physics, Mathematics, Data Science, or a related STEM field. Equivalent hands-on experience will be considered.
• 10+ years of professional software development experience, with demonstrated focus on scientific computing, algorithm development, data processing, or related technical domains.
• Expert-level Python programming, including object-oriented design, modular architecture, and production-quality code.
• Experience developing software for data-intensive workflows - sensor data, scientific data, simulation, or equivalent.
• Ability to work from technical or scientific requirements and produce well-structured software architecture, logic flows, and implementation plans.
• Comfortable operating in both Windows and Linux environments, including secure or classified customer workspaces.
• Familiarity with source control and development tooling: Git, GitLab, Bitbucket, Jira, Jenkins, or equivalent.
• Strong communication skills - able to work directly with domain experts who are not software engineers and translate what they need into software that actually works., * Experience with optical signature modeling, EO/IR sensor data, spectral analysis, or hyperspectral data processing.
• Familiarity with machine learning frameworks and workflows: PyTorch, TensorFlow, scikit-learn, or equivalent.
• Experience with scientific Python libraries: NumPy, pandas, OpenCV, SciPy, or similar.
• Background in signal processing, image processing, or remote sensing data workflows.
• Experience with simulation, modeling, or mission analysis software in a defense or intelligence context.
• Familiarity with ML/Ops practices - training pipelines, data labeling, model evaluation, and deployment workflows.
• Experience integrating algorithms into existing operational software suites.
• Proficiency in a secondary technical language: C, C++, MATLAB, Java, or Rust.
• Advanced degree in a relevant technical field (Computer Science, Electrical Engineering, Physics, Image Science, or related).
• Prior experience supporting defense, intelligence, or classified customer environments.
• Experience with CI/CD practices, automated testing, and DevSecOps tooling.

At NASK, our employees are the backbone of our company, so we provide unsurpassed benefits and work-life balance. Employees are provided with individual offices and collaboration spaces to foster individual and team success. We have a casual yet professional work environment - Employees work hard, and NASK offers a competitive benefits package that equates to 50% on top of your annual base salary. This is split between a tax-qualified profit-sharing retirement plan that NASK contributes to (up to allowable IRS limits) and a cafeteria plan for benefits. For a comprehensive overview of our benefits, visit the benefits tab under our careers page: https://nask.world/company/careers/

Compensation: NASK Incorporated considers several factors when extending an offer, including but not limited to the role and responsibilities, work experience, education, training, certifications, geographic location, and market data. These are general guidelines and not a guarantee of compensation or salary.

Please be aware that many of our positions require the ability to obtain or maintain a U.S security clearance which requires U.S citizenship.

Our people are the core of who we are and what we do. NASK has two decades of experience delivering innovative solutions to the tough technical challenges facing our partners in the Intelligence and Defense communities. Our subject matter experts collaborate with junior developers and analysts, bringing fresh approaches to solve the toughest mission problems.