Top Systems Engineer Jobs in Chicago, IL

Build and maintain lead-to-order business systems across Salesforce and connected platforms. Design complex applications, declarative automation, Apex and Lightning solutions, integrations, APIs, data models, and security controls. Remediate technical debt, lead migrations and tool rollouts, manage testing and cutovers, and ensure production systems are observable, documented, and governed. Partner cross-functionally to translate business requirements into scalable solutions while supporting AI capabilities in go-to-market workflows.

Lead and support z/OS systems programming in a multi-Sysplex mainframe environment: install/upgrade/tune z/OS and third-party software, troubleshoot complex issues, collaborate with cross-functional teams, participate in DR testing, document configurations, work with vendors, provide 24x7 on-call support, and lead modernization projects.

Build fault-tolerant, self-healing infrastructure and internal tooling for a brokerage platform. Expand observability using Prometheus, Honeycomb, OpenTelemetry, and Grafana; scale HashiCorp Nomad services through capacity planning and load testing; establish SLOs, error budgets, and alerting; analyze Linux and networking performance; support production on-call operations; and mentor engineers in site reliability practices.

Design, implement, and optimize low-level software systems, networking components, protocols, and performance-critical applications. Develop unit, integration, and stress tests; debug memory leaks, packet flows, and multithreaded execution using GDB and Wireshark. Apply algorithms, data structures, and concurrency techniques while collaborating across teams to maintain modular codebases and reliable releases.

Design, build, monitor, and maintain large-scale Linux infrastructure supporting distributed S3-compatible object storage across multi-cloud environments. Responsibilities include kernel and storage optimization, network and hardware troubleshooting, automation with Chef or Ansible, observability, forecasting capacity, technical leadership, project coordination, mentoring, documentation, and on-call support.

Provides dedicated onsite IT support for client users, troubleshooting Windows, Microsoft Office, Microsoft 365, endpoint, identity, and workplace technology issues. Manages support tickets, performs basic systems administration, documents resolutions, follows security and change-control standards, and escalates complex issues. The role requires strong customer service, communication, organization, and technical follow-through in a client-facing environment, with periodic travel to other Chicago-area client locations and occasional physical handling of equipment.

Lead architecture, development, and validation of end-to-end aircraft fuel systems. Drive cross-functional integration, system-level modeling (CFD), verification, supplier qualification, ground and flight test support, anomaly root-cause analysis, and mentor engineering teams while contributing to long-term fuel-system technology roadmaps.

Develops product architectures, systems requirements, test procedures, and hardware/software integrations. Performs verification, validation, troubleshooting, effectiveness analysis, and system testing using hardware interfaces and operating systems. Coordinates with architects, suppliers, customers, and engineering teams, oversees customer deliverables, supports lab and field exercises, and leads smaller integration efforts for defense products.

Own and improve M1’s IT environment, including Okta identity systems, endpoints, SaaS platforms, office infrastructure, and security controls. Automate provisioning, configuration, reporting, onboarding, and offboarding using scripts, APIs, and config-as-code. Manage vulnerability remediation, endpoint hardening, access reviews, asset inventory, logging, audit evidence, and incident response. Serve as an escalation point for IT support while maintaining Chicago office networking, physical security, meeting-room AV, and employee technology.

Lead customer presentations, stage systems, complete documentation, maintain architecture integrity, and perform live upgrades and deployments of network equipment, Windows devices, virtual machines, and proprietary radio systems. Serve as a customer-facing technical resource during upgrade projects, troubleshoot IP networks, and travel extensively to customer sites. The role requires strong communication skills, systems engineering knowledge, and experience with radio, wireless, LTE, and networking technologies.

Lead Salesforce and billing platform engineering with an emphasis on AI-driven automation. Build scalable Salesforce solutions (Apex, Flow, LWC), pilot LLM/agent workflows, modernize CI/CD and test automation, support Quote-to-Cash and billing processes, collaborate across product and finance, drive technical debt reduction, and mentor junior engineers.

Own and engineer Arcadia's go-to-market technology stack (Salesforce, Planhat, RocketLane), building integrations, automations, and AI agents. Lead platform overhaul, data quality, reporting, deployments, documentation, user enablement, and cross-team partnership to scale Sales, Marketing, and Customer Operations.

Build and operate secure, scalable multi-cloud infrastructure across AWS, GCP, and networking platforms. Develop self-service tooling, infrastructure-as-code defaults, cloud guardrails, and standardized platform patterns. Lead cross-team infrastructure initiatives, technical investigations, and operational improvements while partnering with security, compute, routing, and other infrastructure teams.

Design and develop scalable, highly available software systems for NinjaOne’s IT Operations platform. Build Java and Kotlin applications, implement enterprise design patterns, optimize systems serving millions of endpoints, and contribute production code. Responsibilities include REST service development, relational database work, client-server messaging, caching, scalability improvements, and quality testing. The role collaborates with engineers to deliver reliable cloud services supporting worldwide operations.

Develop scalable, high-performance RTL and embedded processing systems for quantum computing applications. Collaborate with physicists and multidisciplinary engineering teams, architect processing chains, build analytical models, and tune and troubleshoot systems in laboratory environments. Apply software engineering practices including testing, version control, CI, static analysis, automated builds, documentation, and code reviews. The role may also lead small technical teams or projects.

Designs, builds, deploys, maintains, and supports Microsoft-based platforms, infrastructure, devices, and software systems. Leads complex platform initiatives, upgrades, patching, troubleshooting, security remediation, configuration management, and performance optimization. Resolves production incidents, supports hardware and software integrations, participates in forensic investigations, collaborates with vendors and business partners, and provides rotational after-hours support. The role also coaches team members and contributes to scalable, secure, and reliable systems architecture.

Design and implement aerospace electronic system architectures, develop and manage requirements, solve complex technical challenges, and lead cross-functional engineering teams. Advise leadership on technology strategy, support safety analyses, troubleshoot critical systems, and mentor junior engineers. Ensure solutions meet technical standards, business objectives, and requirements across firmware, software, and electronic hardware.

Designs, develops, deploys, administers, and sustains MuleSoft Anypoint Platform and/or Informatica integrations in AWS GovCloud. Builds secure REST APIs and Mule applications, manages API gateways and lifecycle governance, implements authentication and CI/CD, and integrates Navy logistics and mission-partner systems. Responsibilities include testing, monitoring, troubleshooting, documentation, RMF/STIG support, incident response, and knowledge transfer while coordinating with government stakeholders, cybersecurity teams, and external program offices.

Leads architecture, integration, deployment, security, and sustainment of Informatica Data Governance Suite in AWS GovCloud. Designs high availability, disaster recovery, Infrastructure as Code, CI/CD, monitoring, identity controls, and RMF/ATO compliance. Coordinates multidisciplinary engineering workstreams, reviews technical artifacts, manages risks, supports testing and production readiness, and transfers operational knowledge to Navy personnel.

Leads solution architecture and engineering for MuleSoft on AWS GovCloud, covering high availability, disaster recovery, security, Infrastructure as Code, CI/CD, monitoring, API and data integration, and production sustainment. Coordinates multidisciplinary teams, RMF/ATO and STIG compliance, technical risk management, testing, documentation, Government briefings, and knowledge transfer. Reviews designs and operational artifacts while guiding secure, reliable, reproducible enterprise platform delivery.

Deploys, integrates, operates, and tunes high-performance NFS storage for Kubernetes, GPU, and AI workloads. Responsibilities include CSI integration, Linux and network optimization, storage lifecycle management, air-gapped platform support, infrastructure-as-code, GitOps automation, observability, and troubleshooting distributed storage performance and reliability across hybrid, edge, and bare-metal environments.

Lead architecture and engineering for global endpoint fleet across Windows and macOS. Design UEM infrastructure, automate provisioning (Autopilot, ABM), build scripts and API integrations, enforce security baselines (BitLocker, FileVault, EDR), integrate with identity providers, act as Tier 3/4 escalation, and mentor junior staff while driving roadmap and documentation.

Administer, configure, develop, and troubleshoot NetSuite and connected financial systems, including Zone Billing and SuiteProjects Pro. Support month-end close, reconciliations, data integrity, integrations, statutory reporting migration, user access controls, testing, and documentation. Partner with Accounting, FP&A, and IT teams on system enhancements and reporting needs while serving as backup to the Financial Systems Lead and developing toward systems architecture leadership.

Provides software engineering, database development, systems integration, architecture analysis, and testing support for VA healthcare applications. Develops Python scripts and websites, works with Oracle and SQL Server databases, evaluates technology solutions, defines architecture requirements, performs risk assessments, and establishes testing environments. Produces technical reports, maintains architecture artifacts, collaborates with VA stakeholders, and supports integration across applications, databases, and external systems. Requires eligibility to obtain a government security clearance.

Leads the full lifecycle development of satellite and aerospace software systems, including requirements definition, systems architecture, trade studies, verification, validation, testing, anomaly resolution, integration, deployment, and operations. Supports spacecraft product roadmaps, customization, cost optimization, and heritage-platform reuse. The role also leads multidisciplinary teams and performs specialized systems analyses across safety, reliability, security, certification, and related engineering disciplines.