Top Infrastructure Engineer Jobs in Chicago, IL

As an Infrastructure Engineer, you will develop and maintain systems, triage issues, and manage Linux environments, working both independently and as part of a team.

The Lead Infrastructure Engineer will define and build infrastructure at Atticus, managing platforms, security, reliability, and empowering engineering teams.

Design, build, and run secure production infrastructure across cloud-native and air-gapped deployments. Own end-to-end platform outcomes, harden the artifact pipeline for signed releases, embed with teams to advise on security and deployment best practices, and partner with GRC on STIGs, CVE remediation, and audit readiness for classified environments.

Build, operate, and secure cloud-native and edge infrastructure including Kubernetes, artifact pipelines, application streaming, and air-gapped appliances. Partner with product, GRC, and mission owners to design, deploy, and harden systems, remediate vulnerabilities, support audits (IL5/IL6/JWICS), and ensure trusted artifact delivery across environments.

Design, build, and operate secure cloud-native and edge infrastructure for classified and commercial environments. Own end-to-end platform outcomes, harden artifact pipelines for signed builds across cloud and air-gapped deployments, embed with product teams to advise on secure deployments, and support compliance/audit activities (STIGs, CVE remediation) to enable operation in IL5/IL6/JWICS environments.

Design, build, and maintain scalable AWS and Azure infrastructure using Infrastructure-as-Code. Develop automation, deployment pipelines, and production release processes. Contribute code to cloud services, manage networking and IAM, ensure availability and security, and respond to incidents while collaborating on observability and security practices.

Lead design, implement, and manage hybrid on-prem and Azure infrastructure. Oversee storage/backup, virtualization, networking, automation (IaC/scripting), monitoring, security/compliance, cost optimization, and lead/mentor infrastructure engineers while coordinating cross-functional teams and supporting data center operations.

The Senior Infrastructure Engineer will improve system reliability and efficiency, develop standards and tooling, and collaborate with engineering teams to optimize workflows and cloud infrastructure.

The Senior IT Infrastructure Engineer will enhance automation and integration efforts while managing cloud services, CI/CD pipelines, and Kubernetes operations.

Install, deploy, and support HPC infrastructure in customer data centers nationwide. Rack, stack, cable, configure, and troubleshoot servers, storage, networking, and GPU/HPC clusters. Perform Linux system administration, power and cabling work, hardware diagnostics and replacement, post-install testing, backups, and documentation. Operate material handling equipment, follow safety guidelines, and work independently at secure government/customer sites.

Lead design, governance, and administration of endpoint and Microsoft cloud technologies. Manage device enrollment, imaging, compliance, app deployment, patching, and endpoint security across Windows, macOS, iOS, and Android. Automate provisioning and remediation via PowerShell and Microsoft Graph. Oversee Entra ID/AD, Teams, Exchange Online, conditional access, and RBAC. Partner with infrastructure and network teams, produce runbooks, support audits, and ensure regulatory and security best practices.

Design, build, and maintain scalable test automation frameworks and CI/CD-integrated pipelines. Lead functional, integration, regression, and performance testing across distributed systems and telephony platforms. Mentor engineers, analyze failures using logs/metrics, execute load/stress tests, and improve test infrastructure, reliability, and engineering productivity.

Responsible for supporting and optimizing client network environments across on-premises, cloud, and hybrid infrastructures, serving as an escalation point for advanced networking issues.

The Senior Infrastructure Engineer will design, build, and operate crucial cloud infrastructure and developer tools, focusing on observability, reliability, and performance in a high-velocity software environment.

Design, build, and operate core developer-infrastructure services (CI/build, deployment orchestration, test infra) at scale. Own services end-to-end including SLOs, observability, and on-call; drive measurable improvements in build/deploy/test metrics; lead cross-team technical projects and mentor engineers to improve developer productivity.

The Staff Software Engineer will architect and develop high-performance cloud services, resolve infrastructure bottlenecks, ensure engineering best practices, and mentor junior members.

Manage and secure the organization's Azure and Microsoft 365 infrastructure, automate provisioning with PowerShell/Terraform, administer identity and endpoint services (Entra ID, Intune), monitor and respond to security/performance alerts, support backups and disaster recovery, configure network/security services and Cisco Meraki, participate in on-call rotation, and lead infrastructure improvement projects.

Design, operate, and harden M1 Finance's AWS-based infrastructure and EKS clusters. Build Terraform conventions, CI/CD and GitOps automation, observability (metrics/logs/traces/alerting), and secrets/least-privilege practices. Improve network reliability, hybrid/on-prem connectivity, and platform services; share on-call duties and apply SRE principles to reduce toil and manage cost and reliability.

Design, build, and operate secure, scalable Azure platforms (landing zones, networking, compute, storage, identity). Enable Java/Spring Boot delivery to ACA/App Services and serverless runtimes. Automate infrastructure with Terraform/Bicep and GitOps, enforce security/compliance (RBAC, Entra ID, Key Vault), and implement observability, SLOs, autoscaling, and incident response runbooks.

Design and automate global, multi-region Kubernetes platforms using Infrastructure as Code. Build observability (OpenTelemetry, metrics), disaster recovery tooling, and package infrastructure components. Integrate shared infrastructure, support developer environments, and hand off stable platforms to SRE teams.

Run and improve Buffer's production platform: keep EKS, ArgoCD, and AWS reliable; implement progressive delivery (Argo Rollouts); build developer-facing tools and per-PR environments; reduce toil with AI automation; manage observability and cloud cost; drive lifecycle upgrades and security; partner with engineering teams and participate in on-call rotations.

Lead Tier-3 infrastructure engineering across multi-site environment: design and maintain Hyper-V clusters, SAN/iSCSI, IIS and load balancing, manage networking (BGP, Fortinet/SonicWall, UniFi), migrate to Azure File Share, support NetSuite ERP transition, deploy identity and monitoring solutions (Entra ID, Duo, LogicMonitor), and produce technical documentation.

Lead design, implementation, and security of AWS cloud infrastructure and CI/CD automation. Drive cost optimization, observability, and IaC standards (Terraform/CDK). Mentor engineers, participate in on-call rotations, and collaborate with product and science teams to build scalable, reliable cloud-native systems.

The Staff Infrastructure Engineer will design and implement a scalable virtualization platform for high-performance AI workloads, manage VM lifecycles, optimize virtualization for performance, troubleshoot systems, and contribute to long-term architecture.

The role involves benchmarking infrastructure performance, designing tests, debugging customer trials, and maintaining benchmarking infrastructure while ensuring clear documentation and communication.