Top Tech Jobs & Startup Jobs in Chicago, IL

Design intuitive, accessible UI and UX across products: conduct user research and testing, create wireframes, prototypes, and high-fidelity designs, collaborate with product and engineering, iterate based on feedback, and maintain the design system and brand consistency.

Senior Business System Analyst in capital markets with 5+ years' experience. Analyze business processes, systems, and trading activities; gather and document requirements; collaborate with stakeholders; interpret market and regulatory data to identify opportunities and risks. Familiarity with trading platforms and order management systems is a plus.

Design and implement scalable web and mobile architectures; lead and mentor development teams; write high-quality code; optimize performance and security; collaborate with stakeholders and resolve complex technical challenges.

Senior Business Systems Analyst in capital markets responsible for analyzing processes, systems, and trading workflows; gathering and documenting business requirements; interpreting trading and market data to identify risks and opportunities; and collaborating with stakeholders on new initiatives and system enhancements. Requires domain expertise in financial instruments and trading infrastructure, with exposure to SQL/analytics.

SDET focused on data reconciliation, complex SQL, and ETL testing. Build and automate test frameworks, validate ETL pipelines and data warehouses, write optimized SQL for data validation, perform root-cause analysis of discrepancies, and ensure data integrity between source and target systems.

Lead architecture and development of scalable REST-based microservices using .NET 6+, ASP.NET and C#. Drive API design, documentation, CI/CD with Azure DevOps, Azure deployments, event-driven integrations, testing (xUnit/NUnit), and mentor engineers while ensuring performance, security (JWT/OAuth/SAML), and observability for large eCommerce systems.

Design, govern, and maintain hybrid cloud platform architecture and reference implementations. Lead cloud service selection, security-by-design, DevOps/GitOps, infra-as-code, container and Kubernetes platform implementations, monitoring, and architecture reviews. Partner with security and engineering teams to drive standards, blueprints, and operational practices.

Design, develop, and deploy end-to-end machine learning models using statistical and ML algorithms. Prepare and enrich data, implement scalable PySpark/Databricks solutions, and collaborate with product and engineering to create personalized customer experiences and actionable insights.

Design, develop, test, and maintain Android mobile applications. Implement new features from wireframes, ensure performance and UX, fix bugs, write clean, testable code, and collaborate with backend and design teams.

Build high-quality React Native mobile UIs, integrate with native APIs, diagnose and fix bugs and performance issues, maintain code with automated tests, work with third-party dependencies, and help transition existing React web apps to React Native.