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Cyber Security Engineer

Modern Technology Solutions, Inc. (MTSI)
Dayton, OH Full Time
POSTED ON 9/13/2025 CLOSED ON 4/17/2026

What are the responsibilities and job description for the Cyber Security Engineer position at Modern Technology Solutions, Inc. (MTSI)?

MTSI is looking for a Cybersecurity Engineer supporting our customer in Dayton, OH. The selected candidate will be responsible for providing a range of engineering disciplines.

Qualifications

Required Skills:

  • Direct and recent experience coding in C, C , Python.
  • Solid understanding of computer architecture, operating systems, and software development principles.
  • Comfort working with assembly language, machine code, hexadecimal, and binary representations.
  • Experience with reverse engineering tools such as IDA Pro, Ghidra, or GDB.
  • Knowledge of network protocols (TCP/UDP) and basic cryptography functions.
  • Hacker mindset with a demonstrated interest in analyzing software/firmware for weaknesses.

Preferred Skills

  • 1-4 years of demonstrated experience in reverse engineering or related security disciplines.
  • Experience developing user-mode applications for traditional platforms (Windows, Linux, macOS, Android, iOS) or user/kernel-mode capabilities for non-traditional platforms (embedded/proprietary/custom firmware or operating systems).
  • Experience analyzing and manipulating network protocols.
  • Interest in the architecture and internals of proprietary operating systems.
  • Participation or interest in Capture the Flag (CTF)/hacking competitions
  • Experience with hardware reverse engineering tools and techniques.
  • Knowledge of embedded systems and firmware analysis.
  • Demonstrated ability to learn new technologies quickly and adapt to a fast-paced environment.

Certifications (Preferred)

  • Relevant certifications such as Offensive Security Certified Professional (OSCP), eLearnSecurity Junior Penetration Tester (eJPT), GIAC Reverse Engineering Malware (GREM), GIAC Certified Reverse Engineer (GCRE), or other reverse engineering, malware analysis, or security-related certifications.

Education

  • Bachelor's degree in Computer Science, Cyber Security, Computer Engineering, Electrical Engineering, or a related field strongly preferred.

Security Clearance

  • Ability to obtain and maintain a U.S. Security Clearance is required. Ability to obtain TS/SCI.

Role and Responsibilities*

Reverse Engineers use decompiling, disassembling, and de-obfuscating to gain a deeper understanding of how and what a malicious software operates. They identify, examine, and understand various forms of malicious software, such as adware, bots, rootkits, spyware, ransomware, Trojan horses, viruses, and worms.

Perks & Benefits

Vacation

New Hires Accrue 20 days of PTO and 10 Holidays per Year

Health Insurance

Zero Deductible Health Plans

Flexible Schedules

Flex Schedules

Professional Development

Up to $10,000 Annual Education/Training Reimbursement

ESOP

Funded Stock Ownership Plan

401k Match

6% 401k Match Immediate Vesting

Bonus Program

Semi-Annual Bonus Opportunity

Mentorship

Career Mentorship Programs

Why is MTSI known as a Great Place to Work?

  • 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

EEO Statement

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.

Salary : $9,000 - $10,000

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