Senior Security Engineer

IonQ, Inc. [NYSE: IONQ] is the world’s leading quantum platform and merchant supplier - delivering integrated quantum solutions across computing, networking, sensing, and security. IonQ’s newest generation of quantum computers, the IonQ Tempo, is the latest in a line of cutting-edge systems that have been helping customers and partners including Amazon Web Services, and AstraZeneca achieve 20x performance results and accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. In 2025, the company achieved 99.99% two-qubit gate fidelity, setting a world record in quantum computing performance.

Headquartered in College Park, Maryland, IonQ has operations in California, Colorado, Massachusetts, Tennessee, Washington, Italy, South Korea, Sweden, Switzerland, Canada, and the United Kingdom. Our quantum computing services are available through all major cloud providers, while we also meet the needs of networking and sensing customers across land, sea, air, and space. IonQ is making quantum platforms more accessible and impactful than ever before.  

We’re expanding our security engineering capabilities to support our mission in quantum technology and secure infrastructure. We’re looking for a Security Engineer who can balance hands-on engineering with the rigor required for operating in commercial, federal, and regulated environments.

You’ll join a team that values collaboration, inclusivity, technical excellence, and thoughtful problem-solving. While we move quickly as a growing technology organization, we also maintain the discipline needed to align with frameworks such as FedRAMP, NIST, and CMMC. Your expertise will help us design resilient, compliant systems and continually strengthen our security posture.

• →3–5+ years of experience in security engineering, cloud security, or infrastructure/network security.
• →Experienced in writing automation scripts in Python, Powershell, or Bash.
• →Working knowledge of protocols such as DNS, HTTPS/S, TLS, and LDAP.
• →Familiarity with federal frameworks such as FedRAMP,  NIST 800‑171, and CMMC Levels 1 & 2.
• →Experience configuring and securing AWS GovCloud, Azure Government, or similar regulated cloud platforms.
• →Understanding of the MITRE ATT&CK Framework and its application to threat hunting.
• →Experience working with vulnerability management programs in compliance-driven environments.
• →Clear and concise technical writing skills, with the ability to produce documentation suitable for audits and assessments.

• Experience supporting, maintaining, or engineering for a FedRAMP-authorized system.
• Experience working with incident response.
• Background in generating SSPs, POA&Ms, ConMon evidence, or system architecture documentation.
• Automation experience related to compliance workflows, evidence gathering, or configuration drift detection.
• Certifications such as Security+, CySA+, CASP+, CCSP, CISSP, or related.
• Secret Clearance or above.

• Occasional off-hours support may be required for assessments or critical maintenance.
• Background check required; clearance not required unless tied to a specific project.

The approximate base salary range for this position is $126,887 - $166,127. The total compensation package includes base, bonus, equity, and a range of benefit options found on our career site.

If you are interested in being a part of our team and mission, we encourage you to apply!