Senior Principal Systems Engineer

Apex Systems; St. Louis (MO); Remote; USD 200,000 - 205,000; Full time

Benefits offered by this job

ESPP

401K

HSA

EAP

Career development

Job summary

Everforth Apex is seeking a Senior Principal Systems Engineer in a remote-capable role based in the United States. You will shape the technical vision for core platforms, mentor distributed teams, and drive modernization across endpoints, identity, and security.

The ideal candidate has 11+ years of architecting scalable distributed systems, deep Azure expertise, and experience with AWS. Occasional travel to the St. Louis campus may be required.

Qualifications

• Bachelor's degree in Computer Science, Computer Information Systems, MIS or related field preferred.
• 11+ years of software, infrastructure, or platform engineering experience with demonstrated technical leadership.
• Deep expertise across Microsoft Azure (identity, endpoint, security, MFA, SSO, Entra ID).
• Experience designing high-throughput endpoint systems and real-time services.
• Experience with AWS platforms and observability tools (e.g., Splunk).
• Strong operational understanding of networking principles.
• Consulting background within a Big Four or similar advisory environment is a plus.

Responsibilities

• Lead technical strategy and architectural decisions for core business and workforce technology platforms.
• Design and implement scalable solutions spanning cloud, identity, security, productivity, and endpoint technologies.
• Own the holistic technical vision, creating reusable architecture patterns and engineering standards.
• Partner with product and engineering teams to develop roadmaps, ensure operational health, and deliver technology excellence.
• Present complex technical topics and business cases to stakeholders up to executive level.
• Mentor and grow senior technical talent across virtual and distributed engineering teams.
• Ensure security, reliability, scalability, and operational excellence across all solutions.
• Incorporate security practices into all decisions and daily engineering responsibilities.

Skills

Azure identity

Azure security

Identity & access

AWS

Splunk

Networking basics

Technical leadership

Education

Bachelor's degree

Tools

Office 365

Job description

## Job Description# Senior Principal Systems EngineerApply**Job#: 3041720****Job Description:**Senior Principal Systems Engineer**Location:** St. Louis, Missouri (Remote)Role OverviewThis employer is seeking a Senior Principal Systems Engineer to join a robust technology organization focused on endpoints, applications, devices, connectivity, and security. In this highly visible role, you will serve as a senior technical leader and architect, defining the holistic technical vision and driving modernization strategy across virtual engineering teams. This position requires no direct reports but demands exceptional leadership, mentoring capabilities, and stakeholder engagement from engineering teams up through executive leadership.Key Responsibilities* Lead technical strategy and architectural decisions for core business and workforce technology platforms.* Design and implement scalable solutions spanning cloud, identity, security, productivity, and endpoint technologies.* Own the holistic technical vision, creating reusable architecture patterns and engineering standards.* Partner closely with product and engineering teams to develop roadmaps, ensure operational health, and deliver technology excellence.* Present complex technical topics, strategic recommendations, and business cases to stakeholders up to the executive level to gain organizational buy-in.* Mentor and grow senior technical talent across virtual and distributed engineering teams.* Ensure security, reliability, scalability, and operational excellence across all solutions.* Commit to incorporating security practices into all decisions and daily engineering responsibilities.Required Qualifications**Education:** Bachelor's degree in Computer Science, Computer Information Systems, Management Information Systems, or a related field preferred.**Experience:** 11 or more years of software, infrastructure, or platform engineering experience with demonstrated technical leadership in designing distributed systems and scalable architectures.**Technical Skills:** Deep expertise across Microsoft Azure (platform identity, endpoint, security, Office 365, MFA, SSO, and Entra ID), strong enterprise identity and cybersecurity background, and experience designing high-throughput endpoint systems and real-time services.Preferred Qualifications* Experience with Amazon Web Services (AWS) platforms.* Familiarity with observability and analytics tools such as Splunk.* Strong operational understanding of networking principles.* Professional consulting background within a Big Four or similar advisory environment.Work EnvironmentThis position offers a fully remote arrangement within the United States, excluding Alaska and Hawaii. Selected team members must maintain an adequate home office space and work within U.S. Central Standard Time core business hours. The role requires occasional travel to the St. Louis campus location, approximately two to three times per year, for meetings, initial onboarding, and annual leadership conferences. *Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.**Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policy**Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.**Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.**If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [e-mail] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.**UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.***Employee Type:** FullTime**Remote:** Yes**Location:** St. Louis, MO, US**Job Type:****Date Posted:** October 23, 2026**Pay Range:** $200,000 - $205,000