Top Tech Jobs & Startup Jobs in Chicago, IL

Design mobile user experiences for iOS and Android: create information architecture, user flows, wireframes, prototypes and high-fidelity UI. Run stakeholder workshops and usability testing, produce design specs, component libraries, and support developers to deliver accessible, consistent mobile products aligned with client brand.

Design and deliver enterprise-grade Java-based solutions and architectures. Produce HLD/LLD, guide development teams, define APIs/integration, enforce security and performance best practices, and collaborate with stakeholders and DevOps on CI/CD and deployments.

Conducts equipment research, residual and collateral valuation, market analysis, and portfolio monitoring for equipment finance transactions. Prepares valuation reports for credit review, manages off-lease equipment disposition, and maximizes portfolio value through remarketing, renewals, and early terminations. The role also coordinates with appraisers, remarketers, internal stakeholders, and management while ensuring compliance with credit policies, lease standards, and audit requirements.

Leads business analysis, advanced analytics, KPI development, data modeling, reporting automation, and AI/ML initiatives supporting global data-center construction and operational excellence. Builds datasets, dashboards, performance metrics, forecasts, and scenario models; translates complex findings for executives; aligns technology solutions with business needs; and promotes data governance, documentation, process improvement, and analytics maturity across cross-functional teams.

Develop and maintain COBOL applications on IBM mainframes using IMS databases, DL/I calls, JCL, and Expediter. Design, code, test, troubleshoot, debug, and implement online and batch programs under z/OS. Produce technical design documentation and application code while managing multiple assignments independently and collaborating effectively to meet project deadlines.

Manage and provide engineering expertise for NASA GSFC pressure vessel, pressurized systems, and lifting device programs. Oversee inspections, testing, certification, recertification, code analyses, risk categorization, field verification, fracture mechanics, and resolution of legacy documentation and compliance issues. Advise on safety technologies, regulatory requirements, process improvements, and risk reduction while delivering program status and assessment reports.

Build and lead Polymarket’s fraud operations function, including investigation workflows, SOPs, case routing, escalation paths, SLAs, QA processes, and reporting. Manage Fraud Analysts and BPO partners, oversee performance and capacity, investigate fraud typologies, identify process bottlenecks, and partner with Product, Engineering, Data Science, Compliance, and Fraud Strategy to improve detection, automation, and prevention.

The Senior FP&A Analyst owns budgeting, forecasting, financial modeling, variance analysis, executive reporting, KPI dashboards, and strategic decision support. The role partners with Sales, Clinical Operations, Accounting, HR, and leadership on pricing, deal economics, resource allocation, business cases, unit economics, and margin improvement. It also supports financial systems, reporting automation, audit processes, and planning improvements in a growing healthcare services and SaaS organization.

Designs and implements AI and NPC gameplay features for multiplayer, shooter, and live-service games. Responsibilities include prototyping and iterating in Unreal Engine 5, documenting and owning features, collaborating with engineering, art, and production, implementing assets, managing JIRA work, participating in playtests, and resolving design issues. Requires experience shipping PC or console games, Unreal Engine expertise, strong communication, and the ability to present and refine design concepts.

Monitor and investigate security alerts across multiple environments in a 24/7 cyber defense operation. Triage incidents, correlate SIEM, EDR, network, cloud, and threat intelligence telemetry, identify root causes, and recommend containment and recovery actions. Develop and tune detection rules, maintain SOC documentation and playbooks, collaborate with threat intelligence, SOAR, and engineering teams, and mentor junior analysts while meeting operational quality standards and SLAs.

Owns the roadmap, problem definition, business cases, prioritization, and delivery for a core fintech platform area. Partners with product owners, engineering, data science, marketing, sales, clients, and support to develop scalable, data- and AI-driven capabilities. Monitors adoption, time-to-value, and retention, supports go-to-market activities, incorporates customer feedback, and addresses regulatory and compliance requirements.