Top Systems Engineer Jobs in Chicago, IL

Lead development and maintenance of gameplay features and systems for multiplayer live-service games using C++ and Unreal Engine. Integrate backend services, optimize client-side caching and APIs, build designer-facing tools, estimate and prioritize backlog, debug crashes on PC/console, mentor engineers, and collaborate with designers and external partners to deliver performant multiplayer features.

Support and maintain on-premises and cloud infrastructure (Azure, Microsoft 365, Windows Server). Monitor performance, troubleshoot incidents, manage user accounts and network settings (DNS, IP, routing), recommend upgrades, document standards, assist Level I engineers, and drive security and operational improvements.

Administer and support HR systems (BambooHR, Lever, Lattice, ADP), document and maintain integrations with Okta and NetSuite, map data flows, troubleshoot escalations, partner with IT/InfoSec on provisioning, evaluate tooling gaps, and support audits/compliance (e.g., SOC 2).

Build and operate Netflix's Membership & Monetization Platform at massive scale. Design product-facing features and platform infrastructure, solve distributed-systems correctness and performance challenges, partner cross-functionally, and own production reliability including on-call duties for Tier 0 services.

Design, build, and operate scalable, fault-tolerant distributed data infrastructure and platform tooling. Collaborate cross-functionally to architect high-impact systems, contribute to library and platform development, and improve deployment, control, and observability for large-scale data systems.

Lead technical direction and architecture for a low-latency, high-throughput ad-serving platform. Design and optimize concurrent distributed systems, profile and mitigate tail latencies, build automated performance benchmarking in CI/CD, and create modular entry points for model-serving and demand systems. Ensure operational excellence, resiliency, and cross-team collaboration to meet SLAs and uptime targets.

Build and operate low-latency, highly available distributed data systems and services to deliver high-quality data products that power ML models and product experiences. Partner with data scientists and product teams, design scalable multi-tenant systems, ensure observability and operational reliability, and enable self-service data access.

Build and operate scalable, fault-tolerant distributed data infrastructure and platforms. Design and implement RESTful services, tackle multi-threading and reliability challenges, partner cross-functionally to enable data movement, storage, schema management, and developer experience at large scale.

Build and operate Tier-0 Pricing, Catalog, and Offers services powering Netflix commerce for 330M members. Design and implement product-facing features and platform infrastructure, solve distributed systems problems (consistency, race conditions, throughput), partner cross-functionally, and own production reliability including on-call incident response.

Design, build, and operate highly reliable distributed storage services, APIs, and tooling at cloud scale. Engage with engineering users, solve large ambiguous problems incrementally, and improve platform observability, cost, and lifecycle management.

Design, build, and operate cloud-native, large-scale distributed data infrastructure (Spark, Presto/Trino, Druid, Iceberg). Improve performance, scalability, and reliability, collaborate cross-functionally, and contribute to open-source projects.

The Senior Power Systems Engineer will lead a team focusing on power systems modeling and analytics, mentor engineers, manage projects, and create various transmission and distribution system models and analyses.

Deploy, upgrade, and maintain High-Speed Data infrastructure (DNS, DHCP, DOCSIS). Administer CentOS/RHEL systems, automate with Python/Ansible/Shell, troubleshoot escalations, create LLDs, run upgrades, train teams, perform on-call duties, and ensure security and high availability.

Lead the engineering architecture for an AI-driven product, focusing on system design, collaborating with AI agents, and ensuring quality and scalability in large-scale SaaS environments.

Design and automate compliance systems to enhance efficiency in audit readiness. Collaborate with teams to integrate tools and optimize processes.

Lead design and scaling of a high-performance, data-intensive storage layer for network telemetry. Co-own multi-year roadmap, collaborate with product/support/sales, and solve challenging distributed storage and query-performance problems at large scale.

The Systems Engineer will architect and implement solutions for queueing systems and state stores, improve throughput and latency, and collaborate with teams to enhance the user experience.

Develop and maintain native Windows endpoint functionality for Keeper's PAM platform, ensuring software is secure and high-performance. Troubleshoot issues and collaborate with engineering teams on architecture and implementation.

The Content Systems Engineer designs and supports cloud-native media systems, ensuring alignment with business goals and optimizing workflows. Responsibilities include system architecture, troubleshooting, collaboration, and managing third-party resources.

Senior individual contributor who designs, secures, automates, and operates core IT systems. Own identity/lifecycle, AWS-based IT infrastructure, ServiceNow architecture, automations, observability, endpoint management, and Tier 3 incident response. Partner across IT, Security, People, and apps to improve reliability, security, and scale; participate in on-call rotations and support audit readiness.

As a C++ Software Engineer, you will optimize performance for latency-critical systems, collaborate with traders and quants, and ensure code correctness in a fast-paced environment.

Lead mission readiness and performance across the Mission Foundry lifecycle: define V&V campaigns, streamline AI&T workflows, analyze on-orbit telemetry, improve autonomy and fault management, feed performance data into design iterations, and support internal tooling roadmaps to scale spacecraft production and operations.

Own and engineer the GTM stack: Salesforce as system of record and HubSpot as marketing system, build and maintain integrations and data flows, deploy agentic AI workflows, implement observability and change management, and partner with Sales, Marketing, Analytics, and Billing to ensure reliable revenue operations.

Own and engineer the GTM stack: Salesforce as source of truth and HubSpot as marketing system; build and maintain integrations, data flows to the data platform, observability, change management, and agentic AI workflows that act on GTM signals to automate revenue operations.

Lead design, configuration, maintenance, and troubleshooting of PTC CAD and Back Office Server systems in a rail environment. Manage lab equipment, work with integrators, interact with railroad personnel, and provide technical leadership on CAD/BOS implementations and testing.