Temp Microsoft Defender Jobs (NOW HIRING)

Primary Office: Chicago
Department: Information Technology
FLSA Status: Exempt

Reports To (Direct): Assistant Director: Global Information Security
Schedule: Monday - Friday
Hours: 8:30 AM - 5:00 PM OR 9:00 AM - 5:30 PM (additional hours as needed)
Shift: 1st

On-Call Requirements:
Participation in an on-call rotation. Due to the global nature of this role, off-hours work (late evenings / early mornings) may be required for calls or meetings.

The Lead InfoSec Engineer is responsible for implementing and maintaining technologies to protect the Firm's systems. This role provides technical leadership on strategic security initiatives while supporting network security, architecture, and best practices across the organization.

• Ensure secure architecture for authentication and authorization (internal and B2B)


• Implement firm security architecture supporting cloud transitions (Azure, M365, Teams, O365)


• Manage and communicate security risks effectively


• Develop and maintain security documentation


• Collaborate across IT and business departments to meet security objectives


• Ensure adherence to change control processes and communicate updates


• Stay current on emerging security threats and solutions

• Analyze DLP system data to ensure policy compliance


• Manage DLP systems and processes


• Define DLP policies and incident response workflows


• Develop DLP effectiveness metrics

• Assist with creation and enforcement of Information Security policies


• Manage security-related projects and tasks


• Detect and respond to security incidents


• Coordinate incident response planning and execution


• Identify causes of incidents and recommend mitigation strategies


• Control access to firm systems and configurations

• Implement monitoring and alerting based on business needs


• Conduct and support risk assessments (vendors, systems, projects)


• Support development and approval of IT security policies


• Ensure independent security reviews are completed and gaps addressed


• Monitor physical data security (e.g., backup storage)

• Educate employees on security best practices


• Partner with IT teams to enforce security standards


• Maintain internal security awareness resources

• Bachelor's degree in a related field OR equivalent experience


• CISSP or CEH certification preferred

• 5+ years in Information Security

• Strong knowledge of CISSP / CEH principles


• Knowledge of ISO 27002 (preferred)


• Networking and security standards expertise


• Authentication methods experience


• Firewall and network security knowledge (preferred)


• Disaster Recovery knowledge (preferred)


• Cloud security experience (Azure, M365, O365)


• DLP incident handling and reporting


• Microsoft Office proficiency

Preferred Tools/Platforms:

• Microsoft Defender for Endpoint


• Thales


• CrowdStrike Falcon


• SIEM tools


• CyberArk


• Rapid7


• Palo Alto

Additional:

• Experience securing AI-driven systems and using AI tools

• Strong communication and interpersonal skills


• Ability to work in a collaborative, high-demand environment


• Effective under pressure with shifting priorities


• Self-starter with strong initiative


• Customer-focused mindset


• High attention to detail and organization


• Strong problem-solving and strategic thinking skills


• Ability to balance business needs with security risks


• Willingness to challenge the status quo


• Maintains confidentiality and discretion

• Up to 20% travel (domestic and international)

• Annual salary range of $150,000 - 160,000


• Comprehensive benefits including healthcare, vision, and dental

#LI-SK1
#DICE
#LNTS

LaSalle Network is an Equal Opportunity Employer m/f/d/v.

LaSalle Network is the leading provider of direct hire and temporary staffing services. For over two decades, LaSalle has helped organizations hire faster and connect top talent with opportunities, from entry-level positions to the C-suite. With units specializing in Accounting and Finance, Administrative, Engineering, Marketing, Technology, Supply Chain, Healthcare Revenue Cycle, Call Center, Human Resources and Executive Search. LaSalle offers staffing and recruiting solutions to companies of all sizes and across all industries. LaSalle Network is the premier staffing and recruiting firm, earning over 100 culture, revenue and industry-based awards from major publications and having its company experts regularly contribute insights on retention strategies, hiring trends and hiring challenges, and more to national news outlets.