Top Tech Jobs & Startup Jobs in Chicago, IL

Lead database design, data modeling, schema evolution, migrations, and ETL/ELT pipelines across MySQL, PostgreSQL, and Google Cloud databases. Build streaming and batch ingestion, enable CI/CD for data deployments, troubleshoot pipelines, produce runbooks, and mentor/lead offshore DB/ETL engineers while collaborating with onshore architects.

Design, build, and maintain scalable data pipelines on AWS using EMR, Spark, and PySpark. Optimize EMR clusters and Spark jobs, implement ETL/ELT processes, ensure data quality, automate ingestion, and collaborate with data scientists and analysts. Document infrastructure, participate in code reviews, and monitor performance and costs.

Lead and oversee large, complex IT and business programs: develop plans, manage budgets/schedules/resources, assess and mitigate risks, validate requirements, recommend solutions, drive process improvements, mentor project managers, coordinate stakeholders, and ensure successful implementations.

Perform data cleansing, ETL, and preprocessing; analyze Retail CPG sales, inventory, and customer data; build predictive models for forecasting and segmentation; research and deploy Agentic frameworks and intelligent agents; produce visualizations and communicate insights to cross-functional stakeholders to optimize supply chain, marketing, and customer experience.

Support the Principal Consultant by gathering and analyzing data, developing capability assessments and financial analyses, preparing presentations and roadmaps, coordinating project milestones, and delivering data-driven recommendations to integrate findings with technical and business teams.

Lead technical analysis and agile development for web-based FI Trading systems. Drive requirements, gap analysis, code research, and collaborate with product and development teams to design, build, test, and deliver trading/brokerage features used by advisors and correspondents.

Lead end-to-end discovery and UX research for a retail POS modernization MVP. Validate and optimize customer-facing workflows (search, quoting, inventory, payments), assess hardware ergonomics, align UX with API-based architectures, and run iterative usability testing to reduce friction and enable rapid pilot rollout and future expansions.

Design and deliver advanced data visualizations and dashboards tailored to audience (senior management vs analysts). Choose optimal chart types, apply best-in-class UX, visualize multi-dimensional data, and apply statistics and financial modeling. Execution/implementation experience is a plus.

Design, develop, and execute automated tests and frameworks using Java 21 and Spring 6. Test RESTful APIs and microservices, support migration from Struts 1, integrate automation into CI/CD, identify and track defects, and apply cloud-based testing practices (AWS).

Design and lead scalable, secure iOS and Android mobile architectures (native and React Native). Mentor developers, enforce code quality and security, integrate apps with cloud backends and CI/CD, monitor performance and crash reporting, optimize offline persistence, and collaborate with cross-functional teams and stakeholders to deliver casino-gaming mobile experiences.