Senior Detection Engineer

JOB SUMMARY

This is a detection engineering role that leverages knowledge of monitoring, analyzing, detecting, and responding to cyber events and incidents to develop and implement effective monitoring and alerting for information systems and networks. This role is responsible for developing and tuning Security Information and Event Management (SIEM) and User Entity and Behavior Analytics (UEBA) content to monitor critical IT infrastructure and application logged events to detect cybersecurity and insider threats across the Marriott enterprise.  This role produces high-quality documentation pertaining to detection development, monitoring logic, and other content creation tasks.  This role will also lead collaboration sessions for security monitoring use case ideation with partners in the cyber security tower and other business units.

CANDIDATE PROFILE

Education and Experience

Required:

• Bachelor’s degree in Computer Sciences or related field or equivalent experience/certification
• 3+ years of collective experience in one or all of the following:
  • Splunk SIEM (Splunk Enterprise Security) threat detection use case development
  • UEBA use case development for insider threat use case development
• 5+ years of experience in some or all of the following:
  • Experience working in (or with) security functions such as SOC, CIRT, security engineering, risk management, vulnerability management.
  • Technical infrastructure operations, administration, or systems engineering
  • Scripting or programming language, including Python

Preferred Skills/Experience:

• Current information security certification such as Certified Information Security Manager (CISM), Certified Information Systems Security Professional (CISSP)
• Offensive and defensive security certifications such as CEH, IGAC Cyber Defense, OSCP or other related certifications
• Splunk Certification, including Splunk Enterprise Security Certified Admin
• Use case development experience on the Exabeam platform
• Working knowledge of the NIST Cyber Security Framework and ISO/IEC 27001:2022
• Working knowledge of the MITRE ATT&CK Framework
• Experience with security monitoring use case ideation for business applications and IT infrastructure
• Familiarity with cloud service provider platforms (AWS, Azure, GCP), identity and access management systems, firewalls, next-gen anti-malware, intrusion detection and prevention systems
• Experience with Linux, Unix and Microsoft operating systems
• Knowledge of IP networking
• Experience with a scripting language (*nix shell scripting, Python, PowerShell, etc.) and regular expressions
• Solid written and verbal communication skills
• Agile methodology

Core Responsibilities

Most Often:

• Lead collaboration sessions within the cyber security tower and other business units to devise security monitoring use cases.  This work entails the collection and collaborative analysis of security accreditation reports, threat models, documented security controls, architecture, and business usage patterns for security monitoring consideration.
• Engage and collaborate with other security engineers and architects as needed to keep pace with the evolution of corporate infrastructure and applications and share that knowledge with peers as appropriate.
• Document prospective security monitoring use cases with MITRE ATT&ACK mappings using standard templates and methodologies.  Identified use cases will be reviewed with stakeholders for acceptance sign-off and to move forward with development.
• Inform and consult other cyber ops teams of required data onboarding and integrations for use case development.
• Develop analytics, correlation searches, dashboards, reports and alerts within the SIEM and UEBA platforms.
• Solicit feedback for pre-production security monitoring content through peer review process and user acceptance testing for tuning.
• Document developed security monitoring content in a documentation registry using department standard templates and methodologies.
• Manage field mapping and transmission of security monitoring alerts to the security incident response platform for SOC analyst consumption as outlined in process documentation.
• Provide governance support for the content development function entailing content development standards compliance, change management approvals for SIEM or UEBA content, and lifecycle management of developed security monitoring content.
• Service operational requests in queue such as analytics content performance tuning, filtering, search refinement, parsing issues, etc.
• Attend SCRUM and prioritization meetings to review and update deliverables.

Less Often:

• Contribute to ongoing development and maintenance of documented standards, workflows, and best practices within the cyber threat detection engineering discipline.
• Research emerging threats and adversary tactics, techniques, and procedures to understand the threat landscape and to ensure that security monitoring content remains relevant and effective.
• Occasional participation in evaluations of new platforms, technologies and methodologies pertaining to cyber threat detection engineering.

MANAGEMENT COMPETENCIES 

• Communication - Conveys information and ideas to others in a convincing and engaging manner through a variety of methods.

• Leading Through Vision and Values - Keeps the organization's vision and values at the forefront of employee decision making and action.

• Managing Change - Initiates and/or manages the change process and energizes it on an ongoing basis, taking steps to remove barriers or accelerate its pace; serves as role model for how to handle change by maintaining composure and performance level under pressure or when experiencing challenges.

• Problem Solving and Decision Making - Identifies and understands issues, problems, and opportunities; obtains and compares information from various sources to draw conclusions, develops and evaluates alternatives and solutions, solves problems, and chooses a course of action.

• Professional Demeanor - Exhibits behavioral styles that convey confidence and command respect from others; makes a good first impression and represents the company in alignment with its values. 

• Strategy Development - Develops business plans by exploring and systematically evaluating opportunities with the greatest potential for producing positive results; ensures successful preparation and execution of business plans through effective planning, organizing, and on-going evaluation processes.

• Building a Successful Team - Uses an effective interpersonal style to build a cohesive team; inspires and sustains team cohesion and engagement by focusing the team on its mission and importance to the organization.

• Strategy Execution– Ensures successful execution across of business plans designed to maximize customer satisfaction, profitability, and market share through effective planning, organizing, and on-going evaluation processes.

• Driving for Results - Sets high standards of performance for self and/or others; assumes responsibility for work objectives; initiates, focuses, and monitors the efforts of self and/or others toward the accomplishment goals; proactively takes action and goes beyond what is required.

• Customer Relationships - Develops and sustains relationships based on an understanding of customer/stakeholder needs and actions consistent with the company’s service standards.

• Global Mindset - Supports employees and business partners with diverse styles, abilities, motivations, and/or cultural perspectives; utilizes differences to drive innovation, engagement and enhance business results; and ensures employees are given the opportunity to contribute to their full potential.

• Strategic Partnerships - Develops collaborative relationships with fellow employees and business partners by making them feel valued, appreciated, and included; explores partnership opportunities with other people in and outside the organization; influences and leverages corporate and continental shared services and/or discipline leaders (e.g., HR, Sales & Marketing, Finance, Revenue Management) to achieve objectives; maintains effective external relations with government, business and industry in respective countries; performs effectively as a liaison between locations, disciplines, and corporate to ensure needed resources are received and corporate strategies are understood and executed.

• Developing Others - Supports the development of other’s skills and capabilities so that they can fulfill current or future job/role responsibilities more effectively.

• Organizational Capability - Evaluates and adapts the structure of assignments and work processes to best fit the needs and/or support the goals of an organizational unit.

• Continuous Learning - Actively identifies new areas for learning; regularly creates and takes advantage of learning opportunities; uses newly gained knowledge and skill on the job and learns through their application.

• Technical Acumen - Understanding and utilizing professional skills and knowledge in a specific functional area to conduct and manage everyday business operations and generate innovative solutions to approach function-specific work challenges

• Technical Intelligence: Knowledge and ability to define and apply appropriate technology to enhance business process 
• Development Methodologies:General knowledge of SDLC and Agile framework and applicable development methodologies.
• Information Security: General information security knowledge, including best practices applicable to threat detection and security controls across networks, endpoints and supporting technologies.

• Business Acumen - Understands and utilizes business information to manage everyday operations and generate innovative solutions to approach business and administrative challenges.
• Basic Competencies - Fundamental competencies required to accomplish basic tasks:

• Basic Computer Skills - Using basic computer hardware and software (e.g., personal computers, word processing software, Internet browsers, etc.).

• Mathematical Reasoning  - The ability to add, subtract, multiply, or divide quickly, correctly, and in a way that allows one to solve work-related issues.

• Oral Comprehension - The ability to listen to and understand information and ideas presented through spoken words and sentences.

• Reading Comprehension - Understanding written sentences and paragraphs in work-related documents.

• Writing - Communicating effectively in writing, as appropriate for the needs of the audience.

Marriott International is an equal opportunity employer. We believe in hiring a diverse workforce and sustaining an inclusive, people-first culture. We are committed to non-discrimination on any protected basis, such as disability and veteran status, or any other basis covered under applicable law.