Title: Infrastructure Security Engineer

Location: US Remote

About PSI

We are PSI Services. We power world leading tests. Delivered with trusted science and the very best test taker experience. PSI supports test-takers on their journey to pursuing dreams and gaining certifications that are important to them. They believe that their dreams are worth working for; that their dreams are worth the effort. And we believe that too. This is our core purpose, to empower people to achieve their dreams. We do this by being the best provider of workforce solutions, which foster both technology and science to deliver the best solutions for our test takers.

We are searching for top talent to join our PSI team and help grow our products and services. We have a creative, supportive and inclusive culture where we empower people in their careers to be their authentic self and make the most of their great talent.

At PSI, we are committed to helping people meet their potential and we believe that promoting diversity, equity and inclusion is critical to our success. That's why you'll find these ideals are intrinsic to our company culture and applied throughout the employee lifecycle.

Learn more about what we do at:

The Infrastructure Security Engineer (ISE) is responsible for ensuring that LLH systems are secure, well maintained and appropriately monitored. It involves working with senior management across all business units to design security solutions and ensure that infrastructure meets and is maintained in accordance with industry standards.

Infrastructure Security Engineers ensure adherence to ISO27001, PCI, SOC2, CIS standards. They possess a broad understanding of log aggregation solutions, server hardware, Linux and Windows operating systems, storage, networking, and load balancing. The Infrastructure Security Engineer leads projects and organizes technical teams to achieve technical and security objectives.

You will be working as part of a global team, engage with vendors and technology partners and have the opportunity to lead and contribute to ongoing projects.

• Design, configure, implement, and maintain all security platforms and their associated software: firewalls, intrusion detection/intrusion prevention, antivirus/EDR, URL Filtering, email security gateway, SIEM, vulnerability assessment solutions, DLP
• Actively take part in and lead the hands-on efforts to help protect and defend our network boundaries, keep computer, network, and cloud systems hardened against malicious activity
• Security analysis of LLH production environments, as well as implementing new security solutions
• Maintain enterprise vulnerability scanning infrastructure, ensuring daily operation of scans and reporting are occurring as required
• Monitor application and system activity logs for potential threats
• Keep up to date with evolving trends and changes in security models and methodologies
• Threat model common attacker methods to develop appropriate mitigation techniques
• Define and develop technical security standards and guidelines with business stakeholders
• Participate in product security architecture planning for both on-premises and cloud-based solutions
• Responding to all system and/or network security breaches and ensuring complete remediation post breach
• Ensure server infrastructure is kept secure, patched and adequately maintained at all times
• Take proactive steps to resolve issues before they impact the business
• Maintain accurate and up to date infrastructure documentation
• Serve as team lead/subject matter expert for junior team members

• Bachelor's degree in Computer Science or equivalent training/certification.
• 3+ years of working experience as an Infrastructure Security Engineer or Systems Engineer.
• 2+ years of working experience with Proofpoint and Barracuda E-Mail gateway.
• 2+ years of working experience with CrowdStrike and Symantec anti-virus solutions.
• In depth knowledge and understanding of the integration of AWS with fundamental Information Security methodologies for both architectural review and implementation
• Strong knowledge of Windows and Linux environments
• Proven history of drafting and promoting security policy with all levels of business stakeholders
• Experience and detailed technical knowledge of security engineering, system and network security, authentication and security protocols, cryptography, and application security
• Detailed knowledge of core server technologies and domain configuration and management, including DNS, DHCP, AD and GPO
• Experience in Domain Trusts, Active Directory Federation
• Experience in managing remote infrastructure across multiple time zones
• Detailed understanding of Hyper-V, VMWare and SAN technologies
• Understanding of network topologies such as VLANs, IPs, subnets, and routing
• Understanding of PowerShell / VB Scripting
• Good written and verbal communication skills with the ability to follow a project from beginning to end while providing updates along the way, while prioritizing time and dealing with multiple projects
• Experience with CIS Hardening Standards and/or DISA STIGs
• Experience with load balancers (F5, Barracuda)

Benefits & Culture

At PSI, our culture is to be transparent and fair. That's why all of our roles have been benchmarked at a competitive rate against the local market they are based in. To be transparent all of our adverts now include the salary so you can see if we align with your expectations when looking for your next role.

In addition to a competitive salary, we offer a comprehensive benefits package and supportive culture when you join us. This includes;

• 401k/Pension/Retirement Plan - with country specific employer %
• Enhanced PTO/Annual Leave
• Medical insurance - country specific
• Dental, Vision, Life and Short Term Disability for US
• Flexible Spending Accounts - for the US
• Medical Cashback plan covering vision, dental and income protection for UK
• Employee Assistance Programme
• Commitment and understanding of work/life balance
• Dedicated DE&I group that drive core people initiatives
• A culture of embracing wellness, including regular global initiatives
• Access to supportive and professional mechanisms to help you plan for your future
• Volunteer Day and a culture of giving back to our community and industry through volunteering opportunities