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Posted August 22, 2026

Senior Cybersecurity Engineer - 930

Quantinuum
Broomfield, Colorado, United States 80020 Full Time
Reference: 286654540


Senior Cybersecurity Engineer - 930

We are seeking a Senior Cybersecurity Engineer in our Broomfield, CO, location.

Key Responsibilities:

  • Be a security ambassador, promote and implement security processes and tools that support our scientists. Allow them to continue the great work they do while doing it securely and efficiently.
  • Understand when to use tools, processes, and policy to resolve key security goals.
  • Collaborate with multiple departments to understand workflows and how security can reduce or remove risk.
  • Increase utilization of current security tools to ensure maximum benefit.
  • Develop and provide key metrics to provide organization risk profile.

YOU MUST HAVE:

  • High School Diploma/GED minimum
  • Minimum of 5+ years’ experience supporting Cybersecurity areas such as: SOC (Security Operation Center), Risk Management, Penetration Testing, Incident Response, Assessments, Audits
  • Due to Contractual requirements, must be a U.S. Person defined as, U.S. citizen permanent resident or green card holder, workers granted asylum or refugee status.
  • Due to national security requirements imposed by the U.S. Government, candidates for this position must not be a People's Republic of China national or Russian national unless the candidate is also a U.S. citizen

WE VALUE:

  • Bachelor’s degree in cybersecurity, computer science, Engineering, Information Systems or related field
  • Highly motivated, results focused, innovative, curious, and a continuous learner.
  • Strong organizational and multi-tasking and time management skills.
  • Ability to work in a dynamic and multicultural environment.
  • Knowledge of software development and deployment, network architectures, and systems and how to secure them.
  • Extensive and demonstrable knowledge of IT systems, services, and hardware encompassing on-premises and cloud-based server and network architectures, end-user and desktop support systems, and enterprise-level IT services, tools, and procedures.
  • Applicable security certifications (ISC2, ISACA, CEH, SANS) are desired.
  • Experience working in a technology start-up environment.
  • Experience working with a small and efficient team.
  • Relentless pursuit of customer service and employee satisfaction.
  • Strong technical leadership abilities and vision.
  • Strong knowledge of Microsoft M365, SIEM, Firewalls, Azure, AWS, EPP, EDR, and network monitoring.
  • Ability to document procedures and design workflows to improve workplace support.
  • Willingness to be flexible in meeting the demands of a fast-moving business.

Compensation & Benefits:

The pay range for this role is $112,000– $140,000 annually. Actual compensation within this range may vary based on the candidate’s skills, educational background, professional experience, and unique qualifications for the role.

Quantinuum is the world leader in quantum computing. The company’s quantum systems deliver the highest performance across all industry benchmarks. Quantinuum’s over 650 employees, including 400+ scientists and engineers, across the US, UK, Germany, and Japan, are driving the quantum computing revolution.
By uniting best-in-class software with high-fidelity hardware, our integrated full-stack approach is accelerating the path to practical quantum computing and scaling its impact across multiple industries.
By joining Quantinuum, you’ll be at the forefront of this transformative revolution, shaping the future of quantum computing, pushing the limits of technology, and making the impossible possible.
What’s in it for you?
A competitive salary and innovative, game-changing work
Flexible work schedule
Employer subsidized health, dental, and vision insurance
401(k) match for student loan repayment benefit
Equity, 401k retirement savings plan + 12 Paid holidays and generous vacation + sick time
Paid parental leave
Employee discounts
Quantinuum is an equal opportunity employer. You will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, or veteran status. Know Your Rights: Workplace discrimination is illegal
Applications will be accepted on an ongoing basis, there is no application deadline for this position.

$112,000 - $140,000 a year



Equal employment opportunity, including veterans and individuals with disabilities.

PI286654540

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