Infrastructure Engineer Jobs in Missouri
Infrastructure Engineer jobs in Missouri are open across St. Louis, Jackson County, and Hazelwood and other Missouri metros, with employers like Quanta Infrastructure Solutions, B. Braun, and Express Scripts Sales Operations hiring at every experience level. Find a role that fits below and apply directly.
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At Polsinelli, What a Law Firm Should Be is not just our tagline, it is what we live every day. We strive to create an environment where our team members are encouraged to bring their creativity and professional passions into the workplace so that they can thrive. Are you a people person who has a keen eye for detail, thrives in a professional environment and wants to be part of a dynamic team? We have the perfect role for an engaging professional like you!
Polsinelli, a national law firm headquartered in Kansas City, MO, is seeking a Senior Infrastructure Engineer. Reporting to the IT Infrastructure Experience Manager. This role can be performed hybrid or remotely, but candidates must be located near one of our offices and have the ability to come in, if needed.
POSITION OVERVIEW
This role will be responsible for the day-to-day administration, maintenance, support, and triage of Infrastructure escalations within the Platform Services function of IT. This role will require demonstrated experience in Identity and Access Management platforms and workflows, PowerShell and MS Graph, and demonstrate customer service as top priority and skillset. Primary areas of responsibilities include working directly in Okta and M365 for Identity and Access Management, Automation authoring and maintenance tasks via PowerShell and/or MS Graph, and supporting the administration and configuration of our M365 tenant.
CORE RESPONSIBILITIES
- Serve as the primary engineer and platform owner for the firm’s Identity & Access Management ecosystem, with emphasis on Okta, lifecycle workflows, and automation patterns.
- Triage incidents and calls. Independently analyze, solve, and correct issues in real time, providing problem resolution end-to-end.
- Manage and monitor Identity and Access controls through Okta and Entra/Active Directory.
- Create, support, and maintain Okta configurations to support access to business applications, Single Sign-On, SAML, SCIM, Multi-Factor Authentication, and lifecycle management.
- Create, support, and maintain the configuration and enforcement of policies and settings using Conditional Access, including phishing-resistant and device-aware authentication, biometrics, and managed-device enforcement for tier-1 applications.
- Provide administration, technical support, and troubleshooting for application authentication, provisioning, lifecycle, and SSO setup requests or issues through Okta and M365.
- Create, Support, and Maintain automation scripts, Azure Automation runbooks, Freshservice workflows, and related processes for employee onboarding and offboarding, group and account management, and OU/Active Directory processes.
- Support onboarding, offboarding, and identity lifecycle workflows driven by UKG and other source systems, including integrations that pull and validate data from SQL databases and other structured data sources.
- Manage and monitor identity synchronization between Active Directory and Microsoft Entra ID, including sync rules, attribute mappings, scoping filters, exception handling, and AD extension attributes.
- Assist in the management of Active Directory and Entra ID.
- Support and maintain Netwrix Directory Manager and related technology platforms to enforce PAM and least privilege access.
- Support and maintain Microsoft Entra Privileged Identity Management (PIM), including role assignments, activation settings, approval workflows, and privileged access controls.
- Create, Support, and Maintain Microsoft Entra app registrations, enterprise applications, service principals, API permissions, client secret and certificate renewals, and related access controls.
- Establish and maintain standards for automation, scripting, documentation, reporting, monitoring, and change management within IAM and Automation.
- Collaborate closely with HR, Recruiting, Security, Infrastructure, User Support, application owners, and business partners, including Facilities, to support and improve identity and access workflows.
- Design and maintain end-to-end identity lifecycle processes (joiner, mover, leaver) across UKG/HRIS, Active Directory, Okta, M365, and key business applications.
- Provide day-to-day technical guidance and support for IAM and Automation processes.
- Ensure that systems related documentation is maintained and kept up to date.
- Provide 24 x 7 support for critical production systems.
- Other duties as assigned.
Employees approved for flexible work arrangements are expected to be available and maintain a practice of reliable, consistent attendance during the employees scheduled work shift including, but not limited to, Teams/instant message, Zoom, email and voicemail, and by phone.
POSITION REQUIREMENTS
- Advanced/Expert Level of PowerShell script building and automation, including Azure Automation runbooks and MS Graph.
- 5+ Years supporting Okta or other IAM platforms.
- 5+ Years supporting M365 Administration (Entra, Teams, OneDrive, Conditional Access).
- Strong experience supporting onboarding, offboarding, and automated life-cycle management workflows driven by UKG or another HRIS.
- Experience working with SQL databases and other structured data sources to support automation and identity workflows.
- Experience supporting identity synchronization, attribute mappings, Microsoft Entra Connect, and AD extension attributes.
- Experience with Netwrix Directory Manager or similar directory management platforms.
- Proficiency in Active Directory/Entra, Single Sign-On (SSO), Multi-Factor Authentication (MFA), identity federation, privileged access management, Conditional Access, and automated life-cycle management.
- Strong troubleshooting, documentation, communication, and customer service skills.
The budgeted salary range for this position is $140,000 - $160,000.
As part of full-time employment associated with this position, Polsinelli PC offers the following benefits: Paid time off, sick time off, a referral program, medical insurance and benefits, dental insurance, vision insurance, life insurance, AD&D insurance, ID Theft insurance, long-term disability benefits, short-term disability benefits, Parking/Transit reimbursement (varies depending on location), 401(k) benefits, and employee assistance benefits.
Polsinelli PC is an Equal Opportunity Employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, or any other characteristic protected by law.
See All 14 Infrastructure Engineer Jobs in Missouri
Find roles in Missouri that match your experience and apply in just a few clicks.
Find Infrastructure Engineer JobsInfrastructure Engineer Jobs by City in Missouri
Where Missouri roles are concentrated, by current openings.
Infrastructure Engineer Job Market in Missouri
A snapshot from current Missouri openings, updated as new roles post.
Who's Hiring
- Quanta Infrastructure Solutions6

- B. Braun1

- Express Scripts Sales Operations1

- Jack Henry & Associates1

- Massman Construction1

Top Industries Hiring
- Energy6
- Consulting & Professional Services3
- Technology & Software2
- Construction & Real Estate1
- Education1
What Missouri Employers Look For
The qualifications that appear most often in infrastructure engineer jobs across Missouri.
- Three or more years of experience managing cloud infrastructure on AWS, Azure, or GCP
- Proficiency with infrastructure-as-code tools such as Terraform or Ansible
- Strong knowledge of networking fundamentals including TCP/IP, DNS, VPNs, and load balancing
- Experience with containerization and orchestration using Docker and Kubernetes
- Familiarity with CI/CD pipelines and tools such as Jenkins, GitLab CI, or GitHub Actions
- Bachelor's degree in computer science, information technology, or a related technical field
Infrastructure Engineer Jobs in Missouri: Frequently Asked Questions
How many infrastructure engineer jobs are there in Missouri?
There are 14+ infrastructure engineer openings in Missouri on Migrate Mate as of June 2026, with the most roles in St. Louis, Jackson County, and Hazelwood. New positions post regularly as employers across Missouri hire.
Which Missouri cities have the most infrastructure engineer jobs?
St. Louis, Jackson County, and Hazelwood have the most infrastructure engineer openings in Missouri right now, with additional roles spread across smaller metros statewide.
Which companies hire infrastructure engineers in Missouri?
Employers hiring infrastructure engineers in Missouri include Quanta Infrastructure Solutions, B. Braun, and Express Scripts Sales Operations, based on current listings on Migrate Mate as of June 2026.
Are there remote infrastructure engineer jobs in Missouri?
Yes. About 36% of infrastructure engineer openings tied to Missouri are remote or hybrid as of June 2026. The rest are on-site roles based in Missouri metros.
How do I apply for infrastructure engineer jobs in Missouri?
You can apply to infrastructure engineer jobs in Missouri directly on Migrate Mate. Search the listings above, find roles that match your experience and preferred Missouri location, then apply to each one that fits.
See All 14 Infrastructure Engineer Jobs in Missouri
Find roles in Missouri that match your experience and apply in just a few clicks.
Find Infrastructure Engineer Jobs