Top Tech Jobs & Startup Jobs in Chicago, IL

Develop and maintain PHP web applications for a federal client, including application migration, requirements analysis, API and database integration, testing, deployment, monitoring, maintenance, outage contingency planning, and performance improvements. The role is client-facing, collaborates with technical and design teams, manages multiple priorities, and provides guidance to junior developers. Remote work is available, with no travel required.

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 multidisciplinary distribution systems engineering teams supporting large-scale telecommunications and network infrastructure modernization. Responsibilities include supervising engineers, technicians, subcontractors, and agency labor; coordinating government stakeholders, base access, schedules, materials, and deployments; validating designs and engineering deliverables; leading reviews and planning; mitigating risks; and supporting program execution. The role requires extensive OSP/ISP, fiber optic, telecommunications room, Air Force and Space Force standards experience, an active Secret clearance, and extensive travel to Eielson Air Force Base.

Designs and optimizes Power BI dashboards, semantic models, datasets, DAX measures, and reporting solutions for identity governance and administration analytics. Partners with ETL engineers and stakeholders to validate Parquet data from Azure Synapse and SailPoint sources, establish data-quality checks, monitor refreshes, define KPIs, and document data lineage. Supports compliance reporting, access governance, audit readiness, certification metrics, and Zero Trust analytics.

Designs, deploys, operates, and improves security infrastructure across AWS and on-premises environments. Responsibilities include AWS security controls, hybrid-cloud architecture, network segmentation, firewalls, Infrastructure as Code, automation, compliance support, monitoring, incident response, troubleshooting, and lifecycle management. The engineer will work with AWS security services, Palo Alto technologies, Terraform, scripting, DevSecOps practices, and frameworks including NIST, FedRAMP, and FISMA. The role is mostly remote with occasional onsite work near Rockville, Maryland.

Performs hands-on cybersecurity and AI engineering, defines and documents functional and technical requirements, converts requirements into Jira stories, validates application features, and collaborates with customers, developers, systems engineers, and AI stakeholders. Evaluates AI architectures, model performance, integration tradeoffs, and emerging AI/ML applications for enterprise software. Requires active TS/SCI with polygraph clearance, U.S. citizenship, a bachelor’s degree, and 15+ years of experience.

Maintains the operational security posture of classified information systems supporting Collateral, SCI, and SAP environments. Responsibilities include authorization package management, compliance reviews, configuration change impact analysis, audit monitoring, vulnerability identification, incident handling, security documentation, system recovery oversight, and coordination with ISSM and authorization officials. The role requires SAP experience, TS/SCI clearance, eligibility for a CI polygraph, and on-site work with occasional travel.

Senior Business Systems Analyst combining strategic enterprise planning with hands-on functional analysis to drive cloud modernization and process transformation. Translate executive priorities into roadmaps, define complex functional requirements, perform capability modeling, support delivery and testing, and present recommendations to senior stakeholders.

Leads end-to-end migration of enterprise business systems from Microsoft Azure to Oracle Cloud Infrastructure. Responsibilities include migration planning, governance, dependency management, stakeholder and vendor coordination, architecture collaboration, testing, cutover execution, risk mitigation, executive communication, and minimizing business disruption. The role guides a small team while coordinating infrastructure, applications, databases, security, networking, operations, and business stakeholders.

Lead enterprise solution architecture and modernization of legacy IBM mainframe financial applications. Analyze current-state systems, design cloud-enabled future-state architectures, map business processes, and guide migrations involving COBOL, JCL, CICS, DB2, and VSAM. Provide technical leadership across integration, data migration, interoperability, documentation, testing, and deployment. Collaborate with financial agencies and development teams to implement modern solutions using Java, Spring Boot, APIs, microservices, databases, cloud platforms, and DevSecOps practices.