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Sr. Software Engineer Job in Dayton, Ohio US

Sr. Software Engineer

Modern Technology Solutions, Inc. - Dayton, OH

Posted: 2/19/2026 - Expires: 5/20/2026

Job ID: 293215895

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Job Description

MTSI is seeking a Software Engineer to support the development and integration of advanced mission systems for highly classified defense acquisition efforts. This role involves hands-on software engineering across the full system lifecycle-from design and development through integration, testing, and deployment-within a fast-paced, mission-driven environment.
The ideal candidate will bring deep technical experience in modern software development, containerization, embedded systems, and open architectures, along with familiarity working on classified programs and cross-functional engineering teams.

Responsibilities

Serve as a software engineer across multiple acquisition efforts, supporting the design, development, integration, testing, and deployment of mission software.
Lead software development efforts and/or portions of software development efforts.
Lead DevSecOps efforts, collaborating with other Developers, Security, and Operations, to continuously deliver products and value for the organization and customers.
Write, debug, and maintain software in C, C++, and Python.
Leverage commercial development tools and modern methodologies such as AGILE, Kanban, Git, Artifactory, Cucumber, Atlassian, Jenkins, etc.
Work in Linux environments (e.g., RHEL, CentOS) and containerized frameworks (e.g., Kubernetes, Docker, Singularity).
Develop and troubleshoot software on embedded systems and real-time targets.
Support the creation of technical documentation, including RFP packages and interface specifications.
Apply digital engineering and model-based systems engineering (MBSE) principles.
Contribute to hybrid cloud software deployments and edge-to-cloud integrations.
Collaborate within open architecture consortiums and support compliance with modular standards.
Participate in cross-domain engineering reviews and integration events.

Qualifications

Required

Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Systems Engineering, Physics, or a related field.
5+ years of experience in software engineering or a closely related field.
Proficiency in C, C++, Python, and embedded software development.
Experience with containerization (e.g., Kubernetes, Docker) and orchestration.
Familiarity with open architecture frameworks and vendor ecosystems.
Strong written and verbal communication skills.
Active Top Secret clearance required; must be SCI eligible.
U.S. Citizenship is required.

Desired

Master's degree in a related technical field.
Experience with OMS, RTOS, FPGA/DSP hardware, HDL, VPX/VITA/SOSA, GPU (CUDA/OpenGL), software-defined radios, RF and EO/IR technologies.
Background with MATLAB, MS&A tools, and hybrid cloud deployments.
Knowledge of IP protocols, interface standards, and hardware/software integration best practices.






Interesting Work:



Our co-workers support some of the most important and critical programs to our national defense and security.





Values:



Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.





100% Employee Owned:



We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.





Great Benefits - Most Full-Time Staff Are Eligible for:






Starting PTO accrual of 20 days PTO/year + 10 holidays/year

Flexible schedules

6% 401k match with immediate vesting up to $9k annually

Semi-annual bonus eligibility (July and December)

Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account

Up to $10,000 in annual educational reimbursement

Other company funded benefits, like life and disability insurance

Optional zero deductible Blue Cross/Blue Shield health insurance plan





Track Record of Success:



We have grown every year since our founding in 1993.



Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance


MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.


For more information about MTSI, please visit www.mtsi-va.com




MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.

MTSI is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

Job Summary

Employment Type:
Full Time Employee
Job type:
Federal Contractor
Skill Based Partner:
No
Education Level:
Bachelor's degree
Work Days:
Mon, Tue, Wed, Thu, Fri
Job Reference Code
86332132
Salary
N/A
Licenses / Certifications:
N/A
Display Recommended WorkKeys®Recommended WorkKeys®:
Applied Math: 5
Graphic Literacy: 5

Workplace Documentation: 7