Cyber Security Engineer, Quantexa
Salary not provided
+ Company bonus
GCP
Azure
Senior and Expert level
London
Decision intelligence platform
Be an early applicant
Decision intelligence platform
501-1000 employees
B2BArtificial IntelligenceEnterpriseBig dataAnalyticsFraud
Be an early applicant
Salary not provided
+ Company bonus
GCP
Azure
Senior and Expert level
London
501-1000 employees
B2BArtificial IntelligenceEnterpriseBig dataAnalyticsFraud
Company mission
To empower every organization with the right data to make the right decisions.
Role
Who you are
- Demonstrated hands-on experience with security operations, incident triage, or vulnerability management
- Familiarity with EDR platforms (ideally CrowdStrike) and security telemetry analysis
- Knowledge of cloud environments, particularly Azure including Entra and Conditional Access, and a good understanding of cloud security concepts
- Ability to understand alert context, assess impact, and follow structured response processes
- Strong attention to detail, disciplined documentation, and good communication skills
- Practical experience with core security platforms, including Wiz for cloud posture and workload visibility, CrowdStrike for endpoint detection and response, and Zscaler for secure access and traffic inspection
- Familiarity with insiderrisk and secretdetection tooling, such as CyberHaven and GitGuardian, with the ability to support basic investigations and configuration checks
- Working knowledge of CI/CD pipelines and DevOps tooling, including the ability to follow established security checks within delivery workflows
- Exposure to native cloud security services (e.g. Azure Security Centre, GCP Security Command Centre) for posture review, alert triage, and configuration validation
- Minimum of 8 years of professional experience in cybersecurity
- Master’s degree in information security, Computer Science, or related discipline
- Preferred Industry Certifications (Evidence required): GIAC certifications such as GCIA, GCED, GCIH, GDAT, GDSA or GMON, Microsoft Certified Identity and Access Administrator Associate (SC 300), Microsoft Certified Security Operations Analyst Associate (SC 200)
- Proactiveness: Take initiative, seek out information, do not sit back and wait, drive your own knowledge alongside that of other guidance provided by the team, and always ask questions
- Communication: Keep stakeholders informed, ask questions, and ensure clarity in all interactions
- Forward thinking: Anticipate challenges and issues, try to think one step ahead, think strategically, and look for opportunities for improvement
- Team Communication: Follow up with the team and make sure you are seen and known, be heard and build strong relationships and establish your presence
What the job involves
- The Cyber Security Engineer is a very hands-on operational role within the Security Operations team, playing a key part in protecting Quantexa
- The role is responsible for the day-to-day operation, optimisation, and monitoring of core security platforms, with a particular focus on Zscaler, Cloud monitoring through Wiz and Endpoint Detection and Response through CrowdStrike
- Working closely with the wider Security Operations, you will ensure that security alerts, findings, and detections are promptly triaged, accurately validated, logged and effectively remediated
- The role contributes directly to improving Quantexa’s security posture by reducing risk, strengthening detection capability, and supporting timely response to security events
- This position is well suited to a very technical, curious and observant practitioner who enjoys working inside key security tooling, values disciplined execution and can operate confidently within established processes while identifying opportunities for continuous improvement
- Monitor and triage Wiz findings daily, validating alerts and determining operational impact
- Performing tuning and threat hunting within Wiz and other tooling
- Identify misconfigurations, excessive permissions, and exposed assets, escalating where required
- Track remediation progress with engineering owners and ensure closure of highpriority issues
- Review and triage Zscaler alerts and policy violations, following documented response procedures
- Investigate suspicious traffic, access attempts, and user activity to determine legitimacy and risk
- Support enforcement actions by validating policy alignment and working with IT and Cloud teams to remediate issues
- Monitor coverage and configuration across users and locations, identifying gaps or misconfigurations
- Support policy tuning by analysing false positives and recommending rule or policy adjustments
- Contribute to playbook development, operational maturity, and ongoing service readiness
- Review and triage endpoint detections, applying documented response steps
- Execute containment actions, including network isolation and sensor troubleshooting
- Validate full sensor coverage across the estate and address gaps in coordination with IT
- Support tuning activities by analysing false positives and proposing rule refinements
- Contribute to playbook improvements and operational readiness tasks
- Conduct initial investigation of security incidents, collect evidence, and escalate based on severity with a keen eye on the quality of the output
- Perform daily review of alerts across our SIEM, Wiz, CrowdStrike, and other platforms
- Validate vulnerabilities and configuration weaknesses raised by scanning tools
- Ability to interpret and operationalise threat intelligence, understand how it informs detection, prioritisation, and response activities, and clearly communicate technical threat intelligence to non-technical stakeholders
- Support cloud security controls, identity hygiene checks, and network policy reviews
- Contribute to the ongoing maturity and documentation of operational processes
- Act as a trusted operational partner to the Cyber Security Manager and the wider Information Security team, providing proactive support and consistent engagement
- Partner closely with DevOps, IT, and Engineering teams to drive timely and effective remediation actions
- Deliver clear and concise updates on incidents and operational activities proactively, without the need for prompting
- Actively participate in team stand ups, contributing constructively to continuous improvement and operational maturity
- Support senior engineers with platform enhancements, integrations, and controlled change activities
Salary benchmarks
Our take
Quantexa specialises in data connectivity, offering companies a vital tool to streamline their information. By bringing together diverse data sets and enhancing internal information with external resources, it enables organisations to generate valuable insights, facilitating more informed decision-making processes.
Since its inception in 2016, Quantexa has experienced exponential growth, establishing a global presence with offices spanning various continents. Its clientele includes prestigious names such as HSBC and Shell, underscoring its reputation as a trusted partner in the realm of data analysis and interpretation.
Enterprises today recognise the untapped potential within their data repositories, and Quantexa is there to help them leverage this resource. One notable partnership has been with the British government's Public Sector Fraud Authority, where its technology helps combat fraud by applying its advanced analytics to identify and address fraudulent activity.
Steph
Company Specialist at Welcome to the Jungle
Insights
Top investors
Company
Funding (last 2 of 6 rounds)
Mar 2025
$175m
SERIES F
Apr 2023
$129m
SERIES E
Total funding: $545m
Company benefits
- Pension Scheme with a company contribution of 6% (if you contribute 3%)
- 25 days annual leave (with the option to buy up to 5 days) + birthday off!
- Health & Wellbeing: Private Healthcare, EAP, Well-being Days, Calm App, Gym Discounts
- Tech & Cycle-to-Work Schemes
Company HQ
Waterloo, London, UK
Leadership
Vishal Marria
(CEO & Founder)Previously an Executive Director at EY, and Director of Financial Services at BAE.
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