Top Tech Jobs & Startup Jobs in Chicago, IL

Reconcile global clearing, exchange, and regulatory fees and rebates against third-party statements. Investigate discrepancies, validate fee calculations, support fee setup and allocation resolution, develop reconciliation controls and procedures, document findings, prepare monthly reports, and collaborate with Business Insights, Trade Accounting, Business Development, and Clearing teams.

Maintain the general ledger and monthly close for multiple digital asset entities. Prepare GAAP-compliant financial reporting, reconciliations, variance analyses, and audit and tax schedules. Identify process improvements and develop automation solutions, including AI initiatives. Collaborate with tax, operations, and data teams while ensuring accurate records, strong controls, and efficient processes across a fast-paced, multi-entity organization.

Manage US employee lifecycle processes in Workday, including onboarding, organizational changes, data integrity, reporting, employment verifications, and exits. Deliver new hire orientation, maintain HR policies and handbooks, support payroll and benefits cycles, monitor downstream integrations, and improve and document scalable HR workflows. Partner with Legal, HR business partners, payroll, benefits, and people operations teams while handling sensitive employee information.

Design, operate, and improve high-performance wireless networks for financial markets. Responsibilities include monitoring and telemetry platforms, device integrations, RF path design, frequency coordination, wireline and optical transport, link commissioning, incident response, production change management, regulatory research, site development, and automation. The role requires Python, Linux, networking, RF expertise, rigorous operational practices, international travel, and participation in a global on-call rotation.

Build and maintain centralized, validated data platforms covering reference, fundamental, market, index, exchange, instrument, and security master datasets. Analyze vendor data, design scalable data models, implement quality controls, resolve processing issues, and partner with quantitative researchers and traders. Provide technical leadership and mentorship while maintaining testing and system design standards across the Core Data team.

Design, deploy, and maintain large-scale HPC compute and storage systems. Troubleshoot performance and faults, build automation and packaging tooling, implement monitoring, collaborate with researchers, participate in maintenance windows, and manage vendor relationships including travel.

Design, architect, and build low‑latency, high‑throughput real‑time streaming systems that ingest, process, and distribute market data to trader GUIs. Collaborate with trading, infrastructure, and support teams to ensure accurate tick‑to‑trade delivery, operate and debug production systems, set technical direction, and mentor other engineers.

Build and extend a core UI platform and use it to deliver business-critical web applications. Collaborate across teams in an agile environment, emphasize testing, pair-programming, and developer productivity, and enable other developers to consume and extend the platform reliably.

Design and implement high-performance, data-dense real-time GUI applications for traders. Focus on low-latency rendering, graphics pipelines, efficient data delivery to browsers, cross-stack work, performance tuning, and mentoring teammates while shaping architecture and best practices.