Full-Time

Senior Security Engineer

Posted on 10/31/2025

Quantum Circuits

Quantum Circuits

11-50 employees

Develops full-stack superconducting quantum platform

No salary listed

H1B Sponsorship Available

New Haven, CT, USA

Hybrid

Category
IT & Security (1)
Required Skills
PowerShell
Bash
Python
LDAP
AWS
Cryptography
penetration testing
Splunk
Requirements
  • 5+ years of experience in security engineering, with a focus on both cloud (AWS) and on-premises environments
  • Deep understanding of security concepts, including network security, encryption, identity and access management, and compliance standards (e.g., ISO, NIST, PCI-DSS)
  • Familiarity with NIST standards for secure data handling and destruction (e.g., NIST SP 800-88)
  • Experience with security tools for vulnerability scanning, incident detection, and monitoring (e.g., Black Duck, Nessus, Splunk, AWS Security Hub)
  • Hands-on experience managing and securing network devices such as firewalls, routers, and switches (e.g., SonicWall, Cisco, Juniper)
  • Strong scripting skills (Python, Bash, PowerShell) for automation of security tasks
  • Knowledge of Windows environments (Active Directory, GPOs) and securing Windows-based systems
  • Excellent communication skills, with the ability to convey complex security concepts to both technical and non-technical stakeholders
  • Self-motivated and able to take ownership of projects, driving them to completion
Responsibilities
  • Assess and mitigate security risks across QCI’s on-premises and AWS environments, including securing in-house applications hosted on AWS
  • Develop, implement, and maintain security policies, procedures, and best practices to safeguard systems, data, and QCI’s quantum computing platform
  • Evaluate and enhance network security by auditing network devices and security appliances (e.g., SonicWall, Cisco, Juniper), identifying vulnerabilities, and recommending configurations. Collaborate with network engineers for implementation
  • Monitor and respond to security threats and incidents by developing and executing a comprehensive incident response plan to detect, communicate, contain, and remediate security breaches effectively
  • Perform regular security audits, risk assessments, and vulnerability scans, including reviews of Windows environments, Active Directory, and GPO configurations
  • Lead and coordinate penetration testing initiatives, conducting internal assessments to identify vulnerabilities and working with third-party security firms for comprehensive evaluations
  • Automate security tasks such as monitoring, alerting, and compliance checks using scripting languages (e.g., Python, Bash)
  • Raise security awareness by establishing a training program, including phishing campaigns and regular employee education to promote best practices
  • Collaborate with leadership to report on security status, vulnerabilities, and improvement plans, ensuring proactive risk management
  • Ensure compliance with third-party vendor security policies by designing and implementing security measures for systems handling external data
  • Oversee secure data handling and retention processes, including encryption, retention, deletion, and forensic destruction in alignment with industry standards such as NIST guidelines
  • Regularly review access logs for potential security threats and unauthorized access, providing detailed reports as required by external audits or risk assessments
Desired Qualifications
  • 7+ years of experience in a security-focused role
  • Security certifications such as CISSP, CEH, CISM, or AWS Certified Security Specialty
  • Experience in designing and implementing security for microservices, containers, and serverless architectures supporting complex platforms
  • Experience ensuring compliance with third-party security policies and external regulatory requirements
  • Knowledge of secure integration practices for external APIs and third-party platforms
  • Familiarity with modern logging and monitoring solutions (e.g., ELK Stack, Prometheus, Grafana)
  • Penetration testing and ethical hacking experience (e.g., Metasploit, Kali Linux)
  • Knowledge of compliance requirements and experience implementing secure solutions to meet regulatory standards

Quantum Circuits is building a full-stack quantum computing platform based on superconducting qubits, designed to be modular and scalable. The system blends superconducting processors with built-in error correction and a modular architecture, plus software features that speed up quantum algorithm execution and support multiple operation modes. Its approach differentiates it by offering an integrated, error-corrected platform with diverse operation modes, built on Yale-developed research. The goal is to deliver a truly useful, scalable quantum computer capable of solving real-world problems.

Company Size

11-50

Company Stage

Acquired

Total Funding

$654.5M

Headquarters

New Haven, Connecticut

Founded

2015

Simplify Jobs

Simplify's Take

What believers are saying

  • D-Wave's $550M acquisition accelerates 2026 gate-model QPU launch.
  • NVIDIA CUDA-Q integration enhances hybrid quantum-classical workflows.
  • Algorithmiq partnership speeds drug discovery via Aqumen Seeker.

What critics are saying

  • Talent exodus post-acquisition delays gate-model launch by 6-12 months.
  • D-Wave's annealing priority stalls dual-rail commercialization versus IBM.
  • IonQ's trapped-ion qubits surpass dual-rail fidelity in 18-24 months.

What makes Quantum Circuits unique

  • Quantum Circuits pioneers dual-rail qubits with built-in error detection.
  • Yale spinout leverages Dr. Rob Schoelkopf's expertise in superconducting qubits.
  • Aqumen Seeker advances fault-tolerant quantum computing path.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Remote Work Options

Hybrid Work Options

Growth & Insights and Company News

Headcount

6 month growth

40%

1 year growth

46%

2 year growth

46%
Business Wire
Jan 8th, 2026
D-Wave Announces Agreement to Acquire Quantum Circuits Inc., Establishing World’s Leading Quantum Computing Company

D-Wave Quantum Inc. (NYSE: QBTS) (“D-Wave” or the “Company”), a leader in quantum computing systems, software, and services, and the world’s first commercial...

AskTraders
Jan 7th, 2026
D-Wave Quantum (QBTS) Stock Holding Steady on $550 Million Quantum Circuits Acquisition

D-Wave Quantum (QBTS) stock holding steady on $550 million Quantum Circuits acquisition. D-Wave Quantum Inc. (QBTS) is making waves in the quantum computing sector, with its stock price holding fairly steady following the announcement of a definitive agreement to acquire Quantum Circuits Inc. for $550 million. The deal, coupled with a recent breakthrough in gate-model quantum computing, has positioned D-Wave as a key player in the burgeoning quantum technology landscape.

Quantum Computing Report
Sep 2nd, 2025
Quantum Circuits Integrates with NVIDIA CUDA-Q to Advance Dual-Rail Qubit Applications

Quantum Circuits, Inc. (QCI) has announced a collaboration with NVIDIA to integrate NVIDIA CUDA-Q programming capabilities into its Aqumen software suite.

Quantum Computing Report
Feb 12th, 2025
Algorithmiq Leverages Quantum Circuits' Aqumen Seeker for Accelerated Drug Discovery

Algorithmiq, a European quantum algorithm company focused on life sciences, is partnering with Quantum Circuits, Inc. to enhance drug discovery using the full-stack quantum computing system Aqumen Seeker.

Drug Discovery Online
Feb 12th, 2025
Algorithmiq Transforms Drug Discovery By HarnessingQuantum Circuits' Aqumen Seeker To Accelerate Chemistry Calculations

Last year, Quantum Circuits announced a $60 million Series B round and the launch of Aqumen Seeker.

INACTIVE