Top Senior Systems Engineer Jobs in Chicago, IL

Build backend services and distributed systems for a cybersecurity and software supply chain security platform. Develop scalable APIs, data pipelines, and platform components handling vulnerability, container, package, runtime, and SBOM data. Work across Linux, Kubernetes, containers, and cloud environments while solving concurrency, performance, reliability, and distributed processing challenges. Own projects from design through deployment, participate in architecture discussions, review code, and collaborate with security researchers and product teams.

The Senior Systems Engineer will support sales of enterprise storage, assist with system configurations, and demonstrate technical expertise while defining product requirements and creating solution blueprints.

Lead design, integration, and validation of ground control station and communications architectures for military aircraft and autonomous systems. Define system behaviors, network architectures, link budgets, and interfaces; integrate RF, SATCOM, datalinks, encryption, and networking components; coordinate cross-functional teams; and support lab, field, and flight tests to ensure reliable command, control, telemetry, and mission data exchange.

Lead systems engineering for Hivemind-based autonomy products: define and manage requirements, develop system architectures and trade studies, coordinate hardware/software interfaces, support integration/verification/validation and testing, and identify and mitigate technical risks across the system lifecycle.

Design, develop, implement, support, and improve financial-system integrations, databases, reporting solutions, and automated processes. Lead technical financial systems projects from requirements gathering through implementation, focusing on Aderant Expert, SQL Server, SSIS, SSRS, and T-SQL. Collaborate with Finance, IS, vendors, and business stakeholders; troubleshoot complex data issues, optimize database performance, document technical solutions, and support multiple concurrent initiatives.

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.

Build fault-tolerant, self-healing infrastructure and tooling; improve observability, telemetry, logging, and alerting; scale a HashiCorp Nomad service fabric; perform capacity planning and load testing; establish SLOs and error budgets; support production systems and mentor engineers in site reliability practices.

Lead end-to-end systems engineering for Navy mission planning products, from concept development through deployment and lifecycle support. Responsibilities include requirements, integration and testing, configuration management, engineering change proposals, security compliance, technical documentation, cost and risk analysis, program planning, and stakeholder coordination. The role supports classified systems, CI/CD monitoring, system authorization, deployment, and maintenance while advising leadership and collaborating with military personnel, contractors, and cross-functional engineering teams.

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.

Design, implement, and support core infrastructure with emphasis on Microsoft 365/Azure, identity, and endpoint management. Lead identity platform, Intune/Autopilot endpoint management, enterprise SSO/SCIM, Windows server maintenance, security audits, vulnerability remediation, documentation for compliance, and automation projects. Resolve advanced incidents and collaborate cross-functionally to improve reliability and deliver complex technical projects.

Design, build, operate, and troubleshoot distributed cloud, IoT, API, event-driven, web, and device-edge systems. Own complex technical problems from discovery through production, make architecture decisions, mentor engineers, conduct code and design reviews, and collaborate across product, QA, firmware, security, and operations. Improve system observability, reliability, security, performance, cost, deployment practices, and engineering processes while communicating trade-offs to technical and non-technical stakeholders.

The Sr. Systems Engineer mentors junior engineers, provides IT support, manages service tickets, maintains documentation, and adheres to change control procedures in a collaborative environment.

The Senior Systems Engineer will ensure system availability, security, and performance for a large-scale global infrastructure at Automattic, addressing system health and facilitating developer efficiency.

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, develops, tests, and integrates cross-platform GUI applications for professional audio products, networking technologies, and embedded systems. The role defines requirements with cross-functional teams, evaluates development technologies, reviews code, ensures software quality, supports agile delivery, documents tasks, and mentors junior engineers. Key work includes Angular-based application development, communication protocol integration, architecture, unit testing, and full software lifecycle participation.

Design, develop, test, and integrate real-time embedded software for professional audio products. Responsibilities include hardware drivers, networking protocols, software architecture, UML modeling, code reviews, debugging, and unit and integration testing. Collaborate cross-functionally on product development, estimate and document tasks, and apply software development methodologies for RTOS-based systems.

Design, develop, test, and optimize embedded Android software for professional audio products. Build custom AOSP images, integrate BSPs and HALs, develop low-level C/C++ code, JNI bindings, system services, and Kotlin/Java applications. Diagnose complex performance and system issues, architect maintainable solutions, review code, document work, collaborate cross-functionally, and mentor junior engineers.

Design, develop, test, debug, and document cross-platform device communication middleware for audio products. Build Node.js and TypeScript business logic, expose GraphQL and REST APIs, standardize device-agnostic interfaces, and support desktop, mobile, browser, cloud, and embedded applications. Collaborate with developers, marketing, testing, systems engineering, and business partners to define requirements and improve software architecture, performance, reuse, and maintainability.

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.

Design, build, and maintain tools and services for Active Directory and cloud identity platforms. Implement security policies and access controls, collaborate on Azure and Google Workspace deployments, automate integrations via APIs and CI/CD, maintain runbooks, participate in on-call rotation, and support AWS infrastructure for production systems.

Develop and evaluate tactical networking requirements and algorithms, perform modeling and simulation, design systems and test procedures, integrate and prototype tactical radios, support integration/verification, and participate in customer demonstrations and test events.

Design, build, test, and maintain low-latency, high-throughput trading services on an Aeron-based platform. Expand trading protocol features, migrate workflows to the new stack, optimize performance and scalability, support production reliability, and collaborate with cross-functional teams while using AI-assisted development tools.

Deploy, upgrade, and maintain High-Speed Data infrastructure supporting DNS, DHCP, DOCSIS provisioning and related platforms. Perform Linux (CentOS/RHEL) administration, scripting/automation (Python, Bash, Ansible, Docker), vendor management, troubleshooting, LLD documentation, project work, training, and on-call support to ensure availability and security of HSD services.

Design and build scalable, automated evaluation pipelines and infrastructure to validate speech, audio, and multimodal models. Translate research benchmarks into enforceable pass/fail gates, run batch and streaming tests, operate canaries and continuous monitoring, integrate quality gates into CI/CD, and partner with research, training, inference, and infra teams to prevent regressions and ensure production model quality.

Designs and builds production data systems, pipelines, database schemas, analytical models, and internal platforms. Responsibilities include writing tested code, optimizing queries and storage, controlling infrastructure costs, enforcing CI/CD, and implementing data testing, monitoring, and alerting. The role also develops AI and LLM-backed data use cases, including retrieval pipelines, embeddings, vector storage, evaluation harnesses, and agentic workflows.