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Consultant, Red Teaming

Ensign Infosecurity (Cybersecurity) Pte Ltd · Singapore

IT - Network / Systems / DB AdminImported listingfull-time1 day ago

About The Role

Ensign is hiring !

Red Team Engagements

  • Plan and conduct authorised Red Team engagements, adversarial simulations, and objective-based security assessments.
  • Translate relevant threats and customer risks into realistic attack scenarios.
  • Perform reconnaissance, initial-access testing, social engineering, privilege escalation, lateral movement, persistence, and data-access simulations where authorised.
  • Assess security controls across networks, endpoints, applications, cloud platforms, identity systems, and operational processes.
  • Identify and demonstrate attack paths that could expose critical systems or business assets.
  • Develop or adapt tools, scripts, payloads, and supporting infrastructure to achieve engagement objectives.
  • Maintain operational security and minimise the risk of unintended disruption throughout each engagement.

Purple Team Engagements

  • Collaborate with Blue Teams, Security Operations Centres, incident response teams, and other defensive stakeholders.
  • Design and execute controlled attack scenarios to validate preventive, detective, and responsive security controls.
  • Map simulated adversary behaviours to recognised frameworks such as MITRE ATT&CK.
  • Evaluate security alerts, telemetry, logging coverage, investigation workflows, and response procedures.
  • Help defensive teams develop and refine detection rules, use cases, playbooks, and response processes.
  • Facilitate knowledge-sharing sessions to explain attacker techniques and strengthen defensive capabilities.
  • Conduct validation and retesting to confirm that identified security gaps have been addressed.
  • Document improvements and remaining areas of security exposure.

Engagement Planning and Governance

  • Define engagement objectives, scope, assumptions, success criteria, and rules of engagement with relevant stakeholders.
  • Ensure all activities are conducted within approved legal, ethical, safety, and customer-defined boundaries.
  • Follow applicable change-control, data-handling, access-control, and escalation procedures.
  • Maintain accurate records of actions, evidence, findings, and attack paths.
  • Communicate critical findings, operational concerns, and potential business risks promptly.
  • Coordinate with project managers, internal teams, and customer stakeholders throughout the engagement lifecycle.

Reporting and Stakeholder Communication

  • Produce clear technical reports, executive summaries, attack narratives, and prioritised remediation recommendations.
  • Explain technical findings in terms of their operational and business impact.
  • Present engagement outcomes to technical teams, senior management, and executive stakeholders.
  • Deliver engagement debriefs and remediation workshops where required.
  • Support remediation planning, validation, and retesting.

Capability Development

  • Contribute to the improvement of Red Team and Purple Team methodologies, tools, procedures, and knowledge bases.
  • Research emerging threats, vulnerabilities, attack techniques, defensive approaches, and security technologies.
  • Share technical knowledge, lessons learned, and good practices with team members.
  • Support the development of reusable attack scenarios and detection-validation content.

Customer Engagement and Adaptability

  • Deliver assignments of varying scope, complexity, and duration based on customer and business needs.
  • Work at customer premises when required.
  • Adapt to different industries, technologies, operating environments, and levels of security maturity.
  • Remain flexible in supporting planned and ad-hoc project requirements.
  • Communicate effectively with internal teams and customer stakeholders throughout each assignment.
  • Offensive Security Certified Professional (OSCP) is required.
  • Advanced or specialist certifications, such as OSEP, OSED, OSWE, CRTO, CRTE, CREST CRT/CCT, GPEN, GXPN, would be advantageous.
  • Demonstrated experience in Red Teaming, Purple Teaming, adversarial simulation, penetration testing, or a related offensive security role.
  • Strong knowledge of adversary tactics, techniques, and procedures, including the MITRE ATT&CK framework.
  • Hands-on experience with network, Active Directory, Windows, Linux, web application, cloud, and identity-based attack techniques.
  • Experience collaborating with defensive security teams to validate and improve security controls.
  • Understanding of defensive technologies and processes, including SIEM, endpoint detection and response, network monitoring, security logging, threat hunting, and incident response.
  • Proficiency with relevant commercial or open-source offensive security tools and frameworks.
  • Ability to develop or modify tools and scripts using languages such as Python, PowerShell, Bash, C#, or another relevant programming language.
  • Ability to analyse complex attack paths and translate technical findings into clear business risks and actionable recommendations.
  • Strong report-writing, presentation, communication, and stakeholder-management skills.
  • Sound professional judgement and a strong commitment to ethics, confidentiality, operational security, and authorised testing boundaries.
  • Ability to work independently and collaboratively within multidisciplinary teams.
  • Willingness and ability to undertake customer-facing assignments of varying duration, including working at customer premises when required.
  • Flexibility to support ad-hoc assignments and changing project requirements.
  • Eligibility to obtain any security clearance or customer-specific access approval required for assigned engagements.
  • A degree or diploma in cybersecurity, computer science, information technology, or a related discipline is preferred; equivalent practical experience will also be considered.

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