Senior Security Engineer

Senior Security Engineer

College Park, Maryland, United States; Louisville, Colorado, United States; Remote, US

About IonQ:

IonQ, Inc. 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.

Location: This role can work onsite or hybrid from our College Park, MD or Louisville, CO offices. We are open to a fully remote option for the right candidate. Travel: Up to 5% Job ID: 1617

The Role:

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.

Responsibilities:

• Deploy, configure, and maintain platforms including Splunk and Microsoft Sentinel.
• Administer CrowdStrike Falcon EDR across enterprise endpoints, ensuring sensor coverage and policy enforcement.
• Manage CrowdStrike DLP policies and Exposure Management to prioritize vulnerability posture and prevent data exfiltration.
• Operate CrowdStrike modules and build Falcon Fusion SOAR playbooks to automate triage and remediation.
• Conduct regular vulnerability testing and risk assessments to identify potential security threats and weaknesses in the organization's infrastructure.
• Deploy and administer Network Intrusion Detection (NID) system as a network security monitoring platform.
• Configure and secure cloud environments such as Azure Government or AWS GovCloud in alignment with required baselines.
• Develop and maintain documentation for security tool configurations and architecture.
• Participate in Continuous Monitoring (ConMon) activities and ensure accurate, timely evidence submission.
• Design and implement security tooling and controls in a cloud environment to protect the organization's data and systems across mobile devices, workstations, servers and SaaS technologies.

Requirements:

• 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, 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.

Preferred Qualifications:

• 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.

Additional Information:

• 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.

Compensation will vary based on individual factors such as education, qualifications, and experience of the final candidate(s), specific office location, and calibration against relevant market data and internal team equity. Posted base salary figures are subject to change as new market data becomes available. Our benefits include comprehensive medical, dental, and vision plans, matching 401K, unlimited PTO and paid holidays, parental/adoption leave, legal insurance, and a home technology stipend. Details of participation in these benefit plans will be provided when a candidate receives an offer of employment.

At IonQ, we believe in fair treatment, access, opportunity, and advancement for all while striving to identify and eliminate barriers. We empower employees to thrive by fostering a culture of autonomy, productivity, and respect. We are dedicated to creating an environment where individuals can feel welcomed, respected, supported, and valued. We are committed to equity and justice. We welcome different voices and viewpoints and do not discriminate on the basis of race, religion, ancestry, physical and/or mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, transgender status, age, sexual orientation, military or veteran status, or any other basis protected by law. We are proud to be an Equal Employment Opportunity employer.

US Technical Jobs. The position you are applying for will require access to technology that is subject to U.S. export control and government contract restrictions. Employment with IonQ is contingent on either verifying "U.S. Person" (e.g., U.S. citizen, U.S. national, U.S. permanent resident, or lawfully admitted into the U.S. as a refugee or granted asylum) status for export controls and government contracts work, obtaining any necessary license, and/or confirming the availability of a license exception under U.S. export controls. Please note that in the absence of confirming you are a U.S. Person for export control and government contracts work purposes, IonQ may choose not to apply for a license or decline to use a license exception (if available) for you to access export-controlled technology that may require authorization, and similarly, you may not qualify for government contracts work that requires U.S. Persons, and IonQ may decline to proceed with your application on those bases alone. Accordingly, we will have some additional questions regarding your immigration status that will be used for export control and compliance purposes, and the answers will be reviewed by compliance personnel to ensure compliance with federal law.

US Non-Technical Jobs. Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Accordingly, we will have some additional questions regarding your immigration status that will be used for export control and compliance purposes, and the answers will be reviewed by compliance personnel to ensure compliance with federal law.

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