Top Systems Engineer Jobs in Chicago, IL

Design and build advanced applications, integrate external APIs, and contribute to large open-source codebases for global clients. The role requires strong systems programming, networking, memory management, concurrency, operating-system concepts, data modeling, parallelism, API design, and technical documentation skills. Candidates should learn quickly, take ownership, navigate unfamiliar codebases, identify edge cases, and continuously improve through feedback. The process includes a technical assessment, interview, and OSS hackweek.

Own and scale Cribl’s corporate IT systems, including Okta identity, AWS infrastructure, endpoint management, ServiceNow, SaaS integrations, automation, and AI tool governance. Lead lifecycle workflows, security baselines, compliance reporting, incident escalation, and on-call operations while partnering with Security, Enterprise Applications, Finance, Compliance, and People teams.

Design, build, and maintain enterprise payment services and APIs using C# and .NET. Integrate processors, gateways, banks, wallets, and alternative payment providers across POS, e-commerce, mobile, and other channels. Implement payment flows, routing, retries, failover, and transaction functionality. Monitor production systems, troubleshoot incidents, improve reliability and performance, and contribute to observability. Collaborate with Product and Architecture teams using Agile development practices.

Leads the design, implementation, and optimization of enterprise infrastructure, cloud services, identity, endpoint management, and monitoring systems. Drives automation, security hardening, incident response, root-cause analysis, migrations, disaster recovery, and operational improvements. Mentors junior administrators, maintains technical documentation, manages vendor escalations, and supports cross-functional technology initiatives. Requires strong infrastructure, cloud, security, troubleshooting, scripting, observability, and IT service management expertise.

Designs, automates, secures, and operates Microsoft Azure and Microsoft 365 cloud and hybrid infrastructure. Responsibilities include identity, endpoint, virtual desktop, monitoring, backup, resiliency, automation, security hardening, incident response, documentation, and technical leadership. The role leads infrastructure modernization workstreams, coordinates with vendors and stakeholders, supports on-call operations, and evaluates AI and Copilot applications for secure operational automation.

Provide internal and customer-facing managed infrastructure support, including monitoring, incident response, systems administration, network troubleshooting, Azure and virtualization administration, escalation management, documentation, and change activities. Resolve incidents within SLA targets, participate in root cause analysis, maintain infrastructure records, and use PowerShell automation to improve operations. The role also serves as a technical escalation point and mentors junior engineers.

Own Baseten’s internal identity and authentication infrastructure, including Okta architecture, SSO, MFA, lifecycle management, and application integrations. Build automated joiner, mover, and leaver workflows across HRIS, Google Workspace, MDM, and SaaS systems using scripting and APIs. Implement access controls, device trust, compliance processes, documentation, and audit evidence. Serve as a technical escalation point for IT Support and partner with Security on least-privilege access and SOC 2 requirements.

Provides Level 2 technical support, network and systems implementation, troubleshooting, client escalation management, documentation, and project engineering for small and midsize business clients. Configures and supports Apple, Windows, cloud, networking, security, backup, and remote-management technologies. Maintains tickets, reports, technical documentation, certifications, service-level performance, and customer satisfaction while participating in on-call and onsite support as needed.

Designs, integrates, and maintains scalable cloud-based systems and services. Responsibilities include cloud architecture, systems integration, verification and validation, requirements analysis, monitoring distributed systems and virtual machines, performance optimization, and resolving functionality, configuration, and integration issues.

Develop and govern scalable NetSuite customizations and integrations using SuiteScript, automated testing, and AI-assisted development. Partner with Finance, Supply Chain, Logistics, and business users to translate requirements into durable solutions. Establish coding, testing, documentation, configuration, change-management, and AI-use standards while supporting integrations with Workato, billing platforms, payment processors, 3PL partners, and enterprise APIs.

Own the reliability, availability, performance, observability, and security of Ophelia’s GCP telehealth platform. Define SLOs, improve monitoring and incident response, expand Terraform infrastructure, strengthen CI/CD, manage disaster recovery, and address latency and Cloud Run performance. Lead on-call maturity, HIPAA/SOC 2 infrastructure controls, and reliability education for engineers. Use AI-assisted tools for automation and incident triage while partnering with technical and non-technical stakeholders.

Supports startup, testing, commissioning, troubleshooting, and performance verification of mechanical HVAC systems on design-build construction projects. The role coordinates with vendors, subcontractors, controls teams, and project staff; reviews installation readiness; executes checklists and functional tests; documents deficiencies and system performance; supports TAB, commissioning meetings, turnover, and project closeout while maintaining safety compliance.

Leads and performs systems engineering for mission modeling and complex defense systems. Responsibilities include developing and integrating system models, simulation code, scripts, and test automation; conducting operational analysis and integration testing; documenting assumptions and performance; and supporting EOIR, optics, RF, detection, tracking, and electronic warfare applications. The role also involves technical leadership within integrated product teams and requires maintaining a Secret or Top Secret clearance.

Own the architecture and evolution of Backblaze’s observability platform across multiple data centers. Lead metrics, logging, tracing, dashboards, infrastructure automation, Kubernetes deployments, Ceph monitoring, and network observability. Establish technical standards, capacity strategies, documentation, and operational practices while mentoring engineers and partnering across SRE, storage, network, security, and application teams. Evaluate AIOps and agentic AI solutions to improve incident detection, correlation, and response.

Lead systems engineering for a next-generation unmanned aircraft system. Responsibilities include defining system architecture, behaviors, requirements, interfaces, fault responses, and traceability; integrating avionics, autonomy, propulsion, sensors, and mission systems; conducting MBSE modeling, trade studies, safety analyses, flight testing, and performance validation; and coordinating cross-functional teams, DoD stakeholders, and government partners through development and operational deployment.

Provides managed-services systems engineering for IBM z environments, including troubleshooting, software implementation and tuning, storage management, disaster recovery, hardware upgrades, performance monitoring, and capacity planning. The role supports customer environments, coordinates with software vendors, documents systems, advises clients, contributes to proposals, and identifies service opportunities. Expertise in IBM installation procedures, core utilities, z ISV products, and UNIX System Services is required, with DB2, CICS, telecommunications, security, automation, Java, and WLM experience preferred.

Provides hands-on administration and support for identity and access management, SaaS vendors, AI tools, endpoint management, and security remediation. Responsibilities include Entra access provisioning, SSO/SAML certificate renewals, SCIM integrations, license management, ticket triage, endpoint rollouts, patching, CVE remediation, MFA changes, and documentation. The role resolves routine escalations, supports cross-platform troubleshooting, flags security concerns, and contributes to automation, cost optimization, and technology implementation projects.

Leads battery engineering and technical project delivery for the EcoCAR Innovation Challenge. Coordinates sponsors, university teams, research partners, schedules, deliverables, risks, and battery module validation. Supports high-voltage battery architecture, structural integration, pack safety, thermal management, student training, and workforce programming. Applies software engineering and AI/ML to engineering workflows and program operations, while representing STEP through publications, presentations, workshops, and external partnerships.

Build and manage Ironclad workflows, integrations, automations, reporting, permissions, and secure AI connections across Legal, Finance, RevOps, Sales, and other business systems. Develop reliable API integrations with monitoring, error handling, and retries; improve contract data visibility; administer releases and change management; troubleshoot issues, manage vendors, document processes, and train users.

Lead the architecture, development, customization, and integration of NetSuite finance systems supporting accounting, Order-to-Cash, and Record-to-Report processes. Partner with Finance, Accounting, Tax, Treasury, Audit, and Data Engineering teams to implement controls, improve close processes, enhance reporting, ensure SOX and GAAP compliance, and manage integrations. Establish NetSuite engineering standards, mentor engineers, oversee data governance, and provide technical leadership for scalable finance technology solutions.

Develop and maintain NetSuite customizations, configurations, financial integrations, reports, and data migrations across multiple subsidiaries. Support ERP implementations, testing, troubleshooting, user access, documentation, IPO readiness, and acquisition integrations. The role collaborates with Finance, Technology, implementation partners, and nontechnical stakeholders while supporting systems including NetSuite, Anaplan, FloQast, BigQuery, Airflow, and related financial platforms.

Lead and sustain large-scale HPC systems supporting NOAA/NWS forecasting. Manage scheduler/software stack (PBS Pro/Slurm), optimize performance and throughput, troubleshoot multi-node Linux clusters, develop scripts, and support 24/7 operations with occasional travel and on-call duties.

Leads complex control systems engineering projects across power, microgrid, water/wastewater, industrial automation, and CHP applications. Designs and evaluates DCS, PLC, instrumentation, HMI, and SCADA systems; develops technical documentation; provides client and construction support; participates in commissioning; signs and seals engineering deliverables; and supports proposals, estimating, and business development.

Design and develop balance-of-plant thermal-fluid systems for a first-of-a-kind nuclear power plant, including steam, feedwater, condensate, condenser, heat exchanger, pump, valve, piping, and auxiliary systems. Perform thermal, structural, and fluid analyses; create CAD models and documentation; coordinate with vendors; support manufacturing, testing, commissioning, regulatory submissions, and system integration. Manage bills of materials, configuration control, schedules, budgets, and cross-functional design activities through deployment.

Lead the architecture and implementation of Amplify’s design system, including reusable React components, design tokens, frontend infrastructure, documentation, and contribution workflows. Partner with Product, Design, and Engineering teams to establish standards, accessibility practices, governance, and adoption across products. Mentor engineers, guide technical decisions, improve development workflows, and explore AI-assisted development practices.