Senior Security Engineer

What we’re all about.

We find, when we come together in the pursuit of excellence, great things happen. And that’s how we do things at Quantexa – together. Our business is data, but our culture is collective. We’re about growth – but not just the bottom line. We create a culture where people feel empowered to do their best work. We might work across continents and time zones, but that doesn’t stop us from collaborating. We’re connected. We celebrate our successes together, and we unite to tackle the challenges. 41% of our colleagues come from an ethnic or religious minority background. We speak over 20 languages across our 47 nationalities, creating a sense of belonging for all.

At Q, we’re looking for people who share that vision. People like you.

You will be expected to.

As a Senior Security Engineer at Quantexa, you will play a pivotal role in shaping and securing our cloud-native environments across Azure and GCP. Leveraging your deep expertise in cybersecurity best practices, threat actor tactics, and modern detection techniques, you will help design, implement, and maintain secure systems that support our internal and client-facing environments. 

You will join the Security Operations team, reporting to the Cyber Security Manager, and be expected to contribute immediately by working with the team and advising the Cyber Security Manager to securely onboard, develop, deploy and manage new technologies within Quantexa from a security aspect. 

You will also be responsible for reviewing existing deployments, identifying areas for enhancement, and contributing to our continuous improvement workflows to ensure our security posture evolves with emerging threats. 

Your role will include interpreting open-source threat intelligence reports and translating them into actionable detection rules aligned with the MITRE ATT&CK framework. You’ll also conduct proactive threat hunting to identify and test indicators of compromise before they escalate. 

Collaboration is key. You will work closely with the Information Security team on initiatives such as penetration testing, red teaming, SOC operations, and compliance-based audits (ISO, SOC2 and Cyber Essentials). You’ll also partner with IT, DevOps and other stakeholders to embed security into every layer of our infrastructure. 

Strong communication skills are essential. You will be expected to clearly articulate complex technical concepts to non-technical audiences, influence stakeholders across the business, and advocate for adopting security best practices in conjunction with the Cyber Security Manager. Your ability to build trust and drive alignment will be critical in embedding security into our operations and culture. 

Requirements

What you’ll be doing.

As a Senior Security Engineer at Quantexa, you’ll play a critical role in securing our global and cloud-native platforms. Your work will span strategic planning, hands-on technical execution, and cross-functional collaboration. You will: 

• Design and consult on the implementation of secure cloud-native architectures across our cloud environments. 

• In conjunction with the Security Operations team, you will build upon existing threat detection and response efforts, including developing and tuning detection rules aligned with MITRE ATT&CK and conducting proactive threat hunting. 

• Collaborate with DevOps and Engineering teams to provide oversight and embed security into CI/CD pipelines and infrastructure as code. 

• Support audit readiness and compliance by contributing to SOC 2, ISO 27001/27017, and NIST 800-53 control implementation and evidence gathering. 

• Participate in red teaming and penetration testing activities to identify and mitigate vulnerabilities. 

• Drive security automation and orchestration initiatives to improve operational efficiency and scalability within the Security Operations function. 

• Work with the security engineer to continuously assess and enhance security tooling and configurations through a security-by-default lens. 

• Engage with vendors to stay informed on product updates and evolving security capabilities. 

• Influence and educate stakeholders across the business to adopt secure-by-design principles and foster a security-first culture. 

• In collaboration with the Cyber Security Manager, contribute to advanced security initiatives, including but not limited to insider risk, data loss prevention (DLP), and incident response efforts. 

What you’ll bring. 

Educational Background:

• Bachelor’s degree in a relevant field (e.g., Information Security, Computer Science, or a related discipline)

• 10+ years of experience in Security Operations and technical-based roles 

Technical Skills:

• Clear understanding of technical security operations within global security frameworks and standards (e.g., ISO 27001, NIST) and regulatory and client requirements 

• Extensive experience in designing and implementing secure systems and architectures. 

• Enhanced Cloud Security experience and knowledge of Azure and GCP security practices. 

• Understanding of secure coding principles and the ability to identify and mitigate software vulnerabilities. 

• Knowledge of CI/CD pipelines and infrastructure as code. 

• Familiarity with Vulnerability Management tools. 

• Experience with Penetration Testing and Red Teaming techniques. 

• Experience with Incident Response and Management, including managing response efforts. 

• Experience with Security Automation and Orchestration tools. 

• Knowledge of endpoint and network security tools. 

• Extensive knowledge of network security protocols and practices. 

Soft Skills:

• Strong communication skills  

• A self-driven and proactive attitude, with initiative in identifying risks, proposing solutions, and driving progress. Continuous improvement without waiting for direction. 

• Strong teamwork and collaboration skills. 

• Adaptability and the ability to work on multiple projects simultaneously and across multiple countries and time zones. 

• Experience in managing security projects and initiatives. 

• Experience with Information Security Policies and the ability to enforce and educate on best practices. 

Benefits

Our perks and quirks.

What makes you Q will help you to realize your full potential, flourish and enjoy what you do, while being recognized and rewarded with our broad range of benefits.

• A competitive salary range of 100-180k USD (subject to experience, level and location)
• Company bonus
• 401(k) match up to 5%
• Competitive PTO Allowance + Paid US Federal Holidays + Your Birthday Off!
• Medical, Dental, and Vision coverage
• Short-term and Long-term Disability, Life, and AD&D insurance
• Access to One Medical - primary care practice that offers 24/7 on-demand virtual care
• Access to Teladoc - on-demand healthcare via phone or video
• Access to Health Advocate - the nation’s leading healthcare advocacy and assistance company
• Access to Calm App Subscription - the #1 app for meditation, relaxation, and sleep
• Access to Talk Space - the #1 rated, HIPAA-compliant app for online counselling and therapy services
• Continuous Training and Development, including access to Udemy Business
• Company-wide socials

Our mission.

We have one mission. To help businesses grow. To make data easier. And to make the world a better place. We’re not a start-up. Not anymore. But we’ve not been around that long either. What we are is a collection of bright, passionate minds harnessing complexities and helping our clients and their communities. One culture, made of many. Heading in one direction – the future.

It’s all about you.

We want you to feel welcome, valued, and respected—because it’s your individuality and passion that make you Q. We see that, and we celebrate it. That’s why we’re proud to be an Equal Opportunity Employer.

We are committed to fostering an inclusive and diverse work environment, continuously improving to ensure everyone belongs. Our recruitment process is designed to be inclusive and accessible. If you need any reasonable adjustments or accommodations, please let our Talent Acquisition Team know—we’re happy to assist.

No matter your race, beliefs, color, national origin, gender, sexual orientation, age, marital status, neurodiversity, or abilities—whoever you are—if you're a passionate, curious, and caring human eager to push the boundaries of what’s possible, we want to hear from you.

start. don’t stop – Apply