Senior Security Administrator

About the Role We are seeking a Senior Security Administrator to serve as a hands-on technical leader within a fast-paced managed services environment. This role is focused on Microsoft 365 identity and access management, customer security operations, process improvement, and team development. It is not a traditional SOC or threat-hunting position. The ideal candidate will own complex security and identity work while serving as a trusted escalation point, mentor, and technical resource for the broader team. Strong leadership is critical. This person should be able to guide junior team members, establish consistent practices, improve processes, and help increase the overall security maturity of customer environments. What You'll Do Serve as a senior technical leader and trusted resource for Microsoft 365 identity and security initiatives. Own Tier 2 security and identity work within Microsoft 365 customer environments. Act as the primary escalation point for complex security, identity, and access issues raised by the support team. Configure and troubleshoot Entra ID, SAML, OpenID Connect, multifactor authentication, and related identity services. Lead customer onboarding and offboarding activities from a security and identity perspective. Mentor junior security and support resources through technical challenges, troubleshooting, and security best practices. Help establish clear standards, documentation, repeatable processes, and a consistent quality bar across the team. Improve and streamline identity, onboarding, offboarding, and security administration processes. Drive process improvement, automation, and stronger security practices across customer environments. Participate in customer calls for projects, escalations, and sales support when needed. Balance hands-on technical execution with team leadership and knowledge sharing. Required Qualifications Strong hands-on experience with Microsoft 365 security, Entra ID, and identity and access management concepts. Working knowledge of SAML, OpenID Connect, multifactor authentication, and modern identity practices. Approximately 5 or more years of IT, systems, identity, or security experience preferred. Experience working in a fast-paced managed services environment or a similarly high-volume, customer-focused setting. Proven ability to lead technical initiatives and serve as a trusted resource for other engineers or administrators. Experience mentoring junior team members and helping build their technical capabilities. Ability to operate independently, take ownership, and move work forward without close oversight. Experience handling security incidents and escalations from support or service teams. Ability to support customer onboarding and offboarding from a security and identity perspective. Strong troubleshooting, communication, documentation, and decision-making skills. Comfort working through ambiguity, adapting quickly, learning from setbacks, and managing changing priorities. Broad systems knowledge with strong learning ability and the confidence to work across unfamiliar tools. Collaborative, low-ego, adaptable working style with a seasoned client-facing presence. Ability to thrive in a fast-moving MSP environment rather than a rigid or slow-paced enterprise structure. Preferred Qualifications Experience with Duo. Experience with Huntress. Exposure to SharePoint. Experience with Inky. Experience with Keeper. Experience with additional Microsoft 365 or managed security tools. Interest in automation and scripting to improve future processes and scalability. Typical Responsibilities Resolve security ticket escalations and complex identity issues. Configure, maintain, and troubleshoot identity and access services. Execute and oversee customer onboarding and offboarding activities. Coach team members and provide technical guidance during escalations. Lead process improvement and documentation initiatives. Join occasional customer meetings tied to tickets, projects, escalations, or sales support. Help prevent knowledge gaps by sharing expertise and building repeatable team practices. Leadership & Working StyleLeads by example while remaining actively involved in day-to-day technical work. Provides clear direction, constructive guidance, and practical mentorship to less experienced team members. Creates structure in ambiguous situations and helps the team move forward with confidence. Takes accountability for execution, service quality, and follow-through. Communicates clearly with technical teams, business partners, and customers. Builds trust through sound judgment, consistency, humility, and a willingness to help others succeed. Work Environment This is a direct-hire individual contributor role with a strong technical leadership and mentorship component. It is best suited for someone who thrives in a high-autonomy, fast-moving environment and is comfortable balancing customer needs, escalations, process improvement, and team development. Remote or hybrid flexibility is available. Determining compensation for this role (and others) at Vaco/Highspring depends upon a wide array of factors including but not limited to the individual’s skill sets, experience and training, licensure and certifications, office location and other geographic considerations, as well as other business and organizational needs. With that said, as required by local law in geographies that require salary range disclosure, Vaco/Highspring notes the salary range for the role is noted in this job posting. The individual may also be eligible for discretionary bonuses, and can participate in medical, dental, and vision benefits as well as the company’s 401(k) retirement plan. Additional disclaimer: Unless otherwise noted in the job description, the position Vaco/Highspring is filing for is occupied. Please note, however, that Vaco/Highspring is regularly asked to provide talent to other organizations. By submitting to this position, you are agreeing to be included in our talent pool for future hiring for similarly qualified positions. Submissions to this position are subject to the use of AI to perform preliminary candidate screenings, focused on ensuring minimum job requirements noted in the position are satisfied. Further assessment of candidates beyond this initial phase within Vaco/Highspring will be otherwise assessed by recruiters and hiring managers. Vaco/Highspring does not have knowledge of the tools used by its clients in making final hiring decisions and cannot opine on their use of AI products.EEO NoticeVaco 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 View email address on click.appcast.io by Highspring also wants all applicants to know their rights that workplace discrimination is illegal.Representation NoticeBy 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.For residents of Ontario, Canada: Based on Highspring’s discussions with its Client, Highspring’s understanding is that this position for employment is a current vacancy (either through Highspring as a contractor or with the client directly).Privacy NoticeVaco 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.Additionally, submissions to this position are subject to the use of AI to perform preliminary candidate screenings, focused on ensuring minimum job requirements noted in the position are satisfied. More details about Vaco by Highspring’s use of AI can be found here (). Further assessment of candidates beyond this initial phase will be conducted by recruiters and hiring managers. Vaco by Highspring does not know and cannot opine on if its client’s use of AI products in hiring.Pay Transparency NoticeDetermining 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.With that said, as required by local law, Vaco by Highspring believes that the following salary range referenced above reasonably estimates the base compensation for an individual hired into this position in geographies that require salary range disclosure. The individual may also be eligible for discretionary bonuses.