Senior Infrastructure Security Engineer

Company : Vaco
Location : Phoenix, AZ, 85003
Posted Date : 10 October 2025
Job Type : Other
Category : Industrial Engineering
Occupation : Security Engineer
Job Details
Vaco has partnered with a Phoenix based client on to support key projects in their technology group. We are seeking a highly skilled, Senior Security/Infrastructure Engineer to lead and support security and infrastructure hardening initiatives across a complex, enterprise retail environment. The ideal candidate will have hands-on experience implementing Palo Alto and host-based firewall policies (default deny) across ~450 servers, enforcing Active Directory and VMware ESXi hardening standards, and driving Palo Alto rule hygiene and best practice remediation. We are looking for strong engineers that can support these initiatives and blend into a great team and organization. Our client would like to being interviews immediately so please reach out to the Vaco team today to learn more.
Core Responsibilities:
- Implement and manage firewall policies, including Palo Alto and host-based default deny configurations.
- Harden Active Directory, Windows Server ), and VMware ESXi environments.
- Maintain Palo Alto firewall rule hygiene and apply best practice updates.
- Automate tasks and remediation workflows using PowerShell.
- Manage and optimize SIEM tools to enhance threat visibility and response.
- Strong Windows Server administration ).
- Azure environment experience, including identity and infrastructure integration.
- Advanced PowerShell scripting for automation and system management.
Vaco by Highspring is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment because of race (including but not limited to traits historically associated with race such as hair texture and hair style), color, sex (includes pregnancy or related conditions), religion or creed, national origin, citizenship, age, disability, status as a veteran, union membership, ethnicity, gender, gender identity, gender expression, sexual orientation, marital status, political affiliation, or any other protected characteristics as required by federal, state or local law.
Vaco by Highspring and its parents, affiliates, and subsidiaries are committed to the full inclusion of all qualified individuals. As part of this commitment, Vaco by Highspring and its parents, affiliates, and subsidiaries will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact .
Vaco by Highspring also wants all applicants to know their rights that workplace discrimination is illegal .
By submitting to this position, you agree that you will be giving Vaco by Highspring the exclusive right to present your as a candidate for the foregoing employment opportunity. You further agree that you have represented information about yourself accurately and have not affirmatively misrepresented your qualifications. You also agree to maintain as confidential, to the fullest extent permitted by law, any information you learn from Vaco by Highspring about the position and you will limit disclosure of information about the position only to the extent necessary to perform any obligations in furtherance of your application. In exchange, Vaco by Highspring agrees to exercise reasonable efforts to represent you through all solicitation, job screening and resume dispersal.
Privacy Notice
Vaco by Highspring and its parents, affiliates, and subsidiaries ("we," "our," or "Vaco by Highspring") respects your privacy and are committed to providing transparent notice of our policies.
- California residents may access Vaco by Highspring HR Notice at Collection for California Applicants and Employees here .
- Virginia residents may access our state specific policies here .
- Residents of all other states may access our policies here .
- Canadian residents may access our policies in English here and in French here .
- Residents of countries governed by GDPR may access our policies here .
Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to:
- the individual's skill sets, experience and training;
- licensure and certification requirements;
- office location and other geographic considerations;
- other business and organizational needs.
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