Platform Security Engineer

Innovation Hub Overview 

Jefferies is creating a Technology Innovation Hub in Pune, a greenfield opportunity to build the systems that power global markets. As our first India technology center, this hub brings together hands on builders who engineer the platforms behind Jefferies’ growth across capital markets, investment banking, and institutional securities. We’re scaling toward an elite team of 500 engineers while maintaining the agility, ownership, and meritocratic spirit that defines Jefferies. From cloud and data to AI, risk, and core business technologies, teams in Pune will lead high impact work with a global mandate.

 

IT Security Technology

Jefferies’ IT Security Technology / Global Information Security (GIS) team protects the firm’s critical systems, sensitive information, and global operations against evolving cyber threats. GIS partners with Technology, Operations, Corporate functions, and the Business to embed security into day-to-day operations while supporting productivity, regulatory compliance, and operational resilience. GIS balances strong controls with efficiency and operates globally across the US, EMEA, and APAC to provide round-the-clock coverage. 

 

Role Overview

Jefferies is seeking a Platform Security Engineer to protect enterprise platforms using endpoint security technologies, with a primary focus on Endpoint Detection & Response (EDR), anti-malware, and Data Loss Prevention (DLP). The role requires hands-on, multi-disciplinary experience across servers, workstations, laptops, virtual machines, and thin clients running Windows, Linux, and UNIX. 

You will work closely with the Security Operations Center (SOC) and other security teams to provide operational support, deliver new initiatives, ensure high availability, and drive upgrades/enhancements. This is an opportunity to help shape and mature Jefferies’ platform security capabilities and roadmap.

 

Key Responsibilities

• Administer and provide operational support for endpoint security technologies (EDR, anti-malware, DLP). 
• Create and maintain documentation including runbooks, design documents, and configuration standards. 
• Perform regression testing and analysis for endpoint security platforms and updates. 
• Follow release management best practices for deployments, enhancements, and upgrades. 
• Partner with SOC and security teams during investigations, containment, and remediation efforts. 
• Conduct deep log analysis, fault isolation, and root cause analysis, and execute corrective actions. 
• Drive automation to continuously monitor and maintain OS security posture. 
• Define and track metrics/KPIs and provide supporting analytics for endpoint and system security. 
• Stay current on endpoint security threats, attacker techniques, and mitigation strategies. 
• Develop and execute strategy to enhance current investments and identify opportunities for innovation and uplift. 
• Aggregate data across disparate platforms to design and develop meaningful alerting and detections. 
• Manage a portfolio of security engineering initiatives and directly lead select projects end-to-end.

 

Required Qualifications

• 5+ years of hands-on experience with endpoint security technologies. 
• Hands-on DLP experience (mandatory). 
• Strong understanding of OS internals and exploit mechanics, with knowledge of preventive/detective controls. 
• Demonstrated experience investigating security incidents; ability to analyze logs to determine scope, techniques, and impacted systems. 
• Experience producing trending, metrics, and management reporting. 
• Strong communication and collaboration skills with remote/global stakeholders. 
• Ability to mentor peers and train junior team members; provide technical direction when needed. 
• Excellent documentation skills and ability to organize workflow and priorities. 
• Self-motivated and able to learn independently. 
• Bachelor’s degree in Technology/related field (or equivalent proven experience).

 

Preferred Qualifications

• Scripting experience (e.g., Python, PowerShell). 
• Knowledge of Splunk Search Processing Language (SPL). 
• Experience in the Financial Services industry. 
• Security certifications (e.g., Ethical Hacking or endpoint security–focused certifications).

 

At Jefferies, we believe that diversity fosters creativity, innovation and thought leadership through the infusion of new ideas and perspectives. We have made a commitment to building a culture that provides opportunities for all employees regardless of our differences and supports a workforce that is reflective of the communities where we work and live. As a result, we are able to pool our collective insights and intelligence to provide fresh and innovative thinking for our clients.

 

Jefferies is an equal employment opportunity employer, and takes affirmative action to ensure that all qualified applicants will receive consideration for employment without regard to race, creed, color, national origin, ancestry, religion, gender, pregnancy, age, physical or mental disability, marital status, sexual orientation, gender identity or expression, veteran or military status, genetic information, reproductive health decisions, or any other factor protected by applicable law. We are committed to hiring the most qualified applicants and complying with all federal, state, and local equal employment opportunity laws. As part of this commitment, Jefferies will extend reasonable accommodations to individuals with disabilities, as required by applicable law.

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