Senior IT Security Analyst

Obayashi Corporation (North American Regional Headquarters); Foster City (CA); On-site; USD 150,000 - 180,000; Full time

Benefits offered by this job

Medical plan

Dental & Vision

Employee assistance

Health Savings Account

Flexible Spending Accounts

Dependent Care FSA

Disability Insurance

Paid holidays

Paid time off

401(k) matching

Job summary

Obayashi Corporation’s North American Regional Headquarters in Foster City is hiring a Senior IT Security Analyst to serve as the hands-on technical lead for the security program. This onsite, full-time role owns daily operations, incident response, and risk management while maturing governance across Azure/M365 and Palo Alto perimeter.

The ideal candidate has 5+ years in security, strong SIEM/EDR experience, and practical knowledge of NIST CSF, ISO 27001, and CIS Controls, with excellent

Qualifications

• 5+ years in IT security with hands-on operations.
• Proven incident response leadership and investigations.
• Experience with SIEM, EDR/XDR, and vulnerability management.

Responsibilities

• Security Monitoring & Incident Response: manage Sentinel, tune detections, and lead end-to-end incident response.
• Vulnerability & Risk Management: run scanning, prioritization, remediation tracking, and risk when evaluating new systems.
• Security Architecture & Engineering: harden Azure/M365 environments and manage Palo Alto firewalls.
• Governance & Compliance: maintain security policies and alignment with requirements.
• Awareness & Enablement: own phishing simulations and mentor staff.

Skills

5+ years IT security experience

SIEM

EDR/XDR

Incident response

NIST CSF

ISO 27001

CIS Controls

Strong communication

Education

Bachelor's degree in Computer Science, Information Security, or related field

Tools

Microsoft Sentinel

Azure

Entra ID

Defender

Purview/DLP

Intune

Palo Alto Networks

Job description

Obayashi North America (NARHQ) is the North American Regional Headquarters of Obayashi Corporation, one of the world's largest construction and engineering companies. We are hiring a Senior IT Security Analyst to serve as the hands-on technical lead for NARHQ's information security program. The role is onsite full-time (5 days/week).

The successful candidate will own day-to-day security operations, lead incident response, drive vulnerability and risk management, and help mature security governance. Our environment is Microsoft-centric (Azure, Microsoft 365, Microsoft Sentinel) with a Palo Alto Networks perimeter, and this role will be central to hardening and continuously improving that environment.

Key Responsibilities

Security Monitoring & Incident Response

• Administer and optimize Microsoft Sentinel: data connectors, analytics rules, workbooks, automation (playbooks/Logic Apps), and log retention
• Monitor, triage, and investigate security alerts; tune detections to reduce noise and improve coverage
• Lead incident response end-to-end: containment, forensics coordination, root-cause analysis, and post-incident reporting to leadership.
• Maintain and exercise incident response playbooks and the escalation matrix
• Monitor threat intelligence relevant to the construction and engineering sector and translate it into actionable controls

Vulnerability & Risk Management

• Run the vulnerability management program: scanning, prioritization, remediation tracking, and reporting across endpoints, servers, cloud workloads, and network infrastructure
• Conduct security risk assessments for new systems, vendors, and projects; provide clear, business-relevant recommendations

Security Architecture & Engineering

• Harden and govern the Microsoft 365 and Azure environments: Entra ID (conditional access, MFA, privileged identity management), Defender suite, Purview/DLP, Intune, and Azure security baselines
• Manage and maintain Palo Alto Networks firewalls and related services (Panorama, Global Protect, threat prevention, URL filtering); review rule bases and support network segmentation

Governance & Compliance

• Maintain security policies, standards, and procedures; ensure alignment with NARHQ security requirements

Awareness & Enablement

• Own the security awareness and phishing simulation program
• Act as a trusted security advisor to internal stakeholders and mentor junior IT staff on security practices

Required Qualifications

• Bachelor’s degree in computer science, Information Security, or related field, or equivalent practical experience
• 5+ years of progressive IT experience, with at least 2 years focused on information security
• Hands-on experience with SIEM, EDR/XDR, and vulnerability management platforms, including detection tuning and alert investigation
• Proven incident response experience, including leading investigations end-to-end
• Working knowledge of NIST CSF, ISO 27001, and CIS Controls
• Strong written and verbal communication skills, with the ability to explain risk to non-technical executives and write clear reports and policies
• Ability to work independently and prioritize in a lean IT team

Preferred Qualifications

• Hands-on experience with Microsoft Azure and Microsoft 365 security (Entra ID, Defender for Endpoint/Identity/Office 365, Purview, Intune)
• Hands-on experience with Microsoft Sentinel (KQL, analytics rules, playbooks, workbooks)
• Hands-on experience with Palo Alto Networks firewalls (PAN-OS, Panorama, GlobalProtect)
• One or more of: CISSP, CISM, GCIH, GCIA, GSEC, CySA+, Microsoft SC-200/SC-100, or Palo Alto PCNSA/PCNSE

Applicants must be authorized to work in the United States. This position is not eligible for

sponsorship.

Anticipated Salary Range: $150,000 - $180,000 /YR DOE

In accordance with California state law, Obayashi Corporation is committed to providing clear and transparent information regarding the compensation for this position. The final salary offered will be based on various factors, including the candidate’s qualifications, experience, skills, and relevant market considerations. This salary range reflects what we reasonably expect to pay for this role within California. Compensation in other states may vary based on local market conditions and applicable regulations. We strive to offer competitive and fair compensation across all locations.

Obayashi Offers Competitive Market Salaries and Benefits Package including:

• Medical, Dental, and Vision Plan
• Employee Assistance Program
• Life Insurance
• Health Savings Account
• Flexible Spending Account
• Dependent Care Flexible Spending Account
• Disability Insurance
• Paid Holidays
• Paid Time Off
• 401(k) Plan Matching

Employee benefits are 100% covered by Obayashi and family coverage is covered at 80%.

About Obayashi

Obayashi Corporation has delivered quality solutions to infrastructure challenges across the globe for more than 130 years. Founded in 1892, Obayashi is the largest Japanese Contractor and is the fourth-largest international contractor conducting business in the United States. Obayashi has been operating and completing projects in the United States since 1979. Obayashi provides a full range of general contractor services in both public works and private sectors including: office buildings, residences, tunnels, highways, rail systems, bridges, artificial islands, airports and nuclear power plants. Other services include urban planning and architecture, real estate and property development, environmental, and waste services. The North American Operations consolidated revenue is over $3 billion in the United States and Canada.

Equal Opportunity Employer

Obayashi Corporation is an equal opportunity employer and makes employment decisions on the basis of merit. We want to have the best available persons in every job. Company policy prohibits unlawful discrimination based on race, color, creed, gender, religion, marital status, registered domestic partner status, age, national origin or ancestry, physical or mental disability, medical condition including genetic characteristics, sexual orientation, or any other consideration made unlawful by federal, state, or local laws. It also prohibits unlawful discrimination based on the perception that anyone has any of those characteristics, or is associated with a person who has or is perceived as having any of those characteristics. The Company is committed to compliance with all applicable laws providing equal employment opportunities. This commitment applies to all persons involved in Company operations and prohibits unlawful discrimination by any employee of the Company, including supervisors and coworkers.

To comply with applicable laws ensuring equal employment opportunities to qualified individuals with a disability, the Company will make reasonable accommodations for the known physical or mental limitations of an otherwise qualified individual with a disability who is an applicant or an employee unless undue hardship would result. If you need accommodation to complete the application process, please contact the Human Resources Department by either visiting Obayashi Corporation at 950 Tower Lane, Ste 800, Foster City, CA 94404 or call [phone].

Equal Opportunity Employer, including disabled and veterans.