Senior Cybersecurity Engineer | The Cyber Sentinel (Dayton)

Senior Cybersecurity Engineer

This position is open for a Senior Cybersecurity Engineer that has the ability to architect, implement, and optimize cybersecurity infrastructure in support of Department of Defense (DoD) missions. Candidates must meet the general requirements below to be considered. Additional qualifications for senior-level applicants are listed throughout the description.

Who You Are : You are the watchtower in the digital frontierthe sentinel who never blinks. Where others see only data and devices, you see the hidden pathways adversaries might exploit. Firewalls, embedded systems, and ICS / OT networks aren't just technology to youthey're the battleground where resilience is forged. You thrive under pressure, turning vulnerabilities into fortified defenses, and you wield tools like Arm assembly, Python, and C as deftly as a master craftsman. But you're not only a defenderyou're a mentor and guide. You elevate those around you, shaping junior engineers into warriors capable of holding the line. You believe the strongest systems are built not only from code and hardware, but from people who understand the mission and share the commitment to protect it.

Who We Are : At Infinity Labs, we don't settle for incremental gainswe make bold leaps, pushing the boundaries of what's possible. Our culture thrives on innovation, where creativity fuels action, and inspiration sparks breakthroughs. We don't just embrace calculated risks; we see them as essential steps toward groundbreaking discoveries. We're on a mission to become the epicenter of transformational, multidisciplinary, system-of-systems technology solutions, strategically aligned with the National Defense Strategy. But our vision isn't just about technologyit's about you. Our structure and benefits are designed to protect your future and unleash your full potential. Join us if you're ready to make a real impact and redefine the future.

What You'll Do : Architect, implement, and optimize cybersecurity infrastructure in support of Department of Defense (DoD) missions. Design secure network topologies, configure and program network infrastructure, and implement security controls aligned with DoD standards. Apply industry best practices to strengthen critical infrastructure defenses, with emphasis on ICS / OT cybersecurity and protecting mission-critical systems. Conduct reverse engineering of embedded devices, perform vulnerability analysis, and develop secure embedded solutions using Arm assembly, Python, and C. Lead by example : mentor junior engineers, foster technical growth, and promote a culture of continuous learning across the cybersecurity team.

Minimum Qualifications | What You'll Bring : 510 years of experience as a mid-to-senior level Cybersecurity Engineer. Demonstrated ability to mentor, train, and guide junior engineers. Expertise with Industrial Control Systems (ICS) and Operational Technology (OT) cybersecurity. Strong knowledge of network infrastructure and network security principles, with hands-on experience configuring and securing switches and related equipment. Proficiency in Arm assembly language, Python, and C for embedded systems and cybersecurity applications. Hands-on expertise in reverse engineering embedded devices, including firmware analysis and exploit mitigation. Ability to effectively communicate complex cybersecurity designs and risk assessments to diverse stakeholders. Education / Credentials : B.S. or higher in Cybersecurity, Computer Science, or a related STEM field. US Citizenship is REQUIRED (this role requires a U.S. government security clearance). Acceptable Secret security clearance. Nice to Have Top Secret clearance with current SCI access.

Physical Demands : Must be able to remain in a stationary position and work on a computer for prolonged periods.

What We Offer : As a nationally recognized Great Place to Work and three-time recipient of the Business of the Year award, we prioritize employee well-being and foster a culture that values individuals. Our premier total compensation package for eligible employees includes : Comprehensive health benefits including medical, dental, and vision coverage. Company-paid disability and life insurance. Generous 401(k) plan with guaranteed company contribution. Paid time-off options including floating holidays, personal time, parental leave, and community service opportunities. Investment in employee growth and development through tuition reimbursement and discounted tuition programs with select colleges. In-office perks including free parking, complimentary snacks and beverages, and a newly renovated central office location in downtown Dayton.